This service repair manual provides instructions for removing and installing inlet and exhaust valves, valve springs, valve guides, and valve seat inserts on a Caterpillar 303.5E2CR Mini Hydraulic Excavator. The document describes the required tools and provides step-by-step procedures that involve using a valve spring compressor to remove valves and springs safely while ensuring the piston is at top dead center. Technicians must clean and inspect all cylinder head components and replace any worn or damaged parts during reassembly.
Caterpillar cat 303.5 e2 mini hydraulic excavator (prefix jwy) service repair...cdfvvv1
The document provides instructions for removing and installing inlet and exhaust valves, valve springs, valve guides, and valve seat inserts on a Caterpillar 303.5E2 Mini Hydraulic Excavator engine. The procedures describe using various tools to compress valve springs, remove components in the proper sequence, and inspect parts to ensure correct installation. Safety notices are included to warn of potential injury from compressed springs and to keep components clean from contaminants.
Caterpillar cat 303.5 e2 mini hydraulic excavator (prefix jwy) service repair...fikskkdmmd1
The document provides instructions for removing and installing inlet and exhaust valves, valve springs, valve guides, and valve seat inserts on a Caterpillar 303.5E2 Mini Hydraulic Excavator engine. The procedures describe using various tools to compress valve springs, remove components in the proper sequence, and inspect parts to ensure correct installation. Safety notices are included to warn of potential injury from compressed springs and to keep components clean from contaminants.
Caterpillar cat 303.5 e2 mini hydraulic excavator (prefix jwy) service repair...fjskekfseik
The document provides instructions for removing and installing inlet and exhaust valves, valve springs, valve guides, and valve seat inserts on a Caterpillar 303.5E2 Mini Hydraulic Excavator engine. The procedures describe using various tools to compress valve springs, remove components in the proper sequence while keeping them clean, and reinstalling components in the reverse order of removal. Special tools and trained personnel are required for some tasks like removing valve guides and seats.
Caterpillar cat 303.5 e2 mini hydraulic excavator (prefix jwy) service repair...fjsjekdmmeme
The document provides instructions for removing and installing inlet and exhaust valves, valve springs, valve guides, and valve seat inserts on a Caterpillar 303.5E2 Mini Hydraulic Excavator engine. The procedures describe using various tools to compress valve springs, remove components in the proper sequence while keeping them clean, and reinstalling components in the reverse order of removal. Special tools and trained personnel are required for some tasks like removing valve guides and seats.
Caterpillar cat 303.5 e2cr mini hydraulic excavator (prefix dwd) service repa...fjjskekdmem
This service repair manual provides instructions for removing and installing inlet and exhaust valves, valve springs, valve guides, and valve seat inserts on a Caterpillar 303.5E2CR Mini Hydraulic Excavator. The document outlines the required tools and multi-step procedures, including ensuring pistons are at top dead center and using valve spring compressors. Safety notices are provided to wear protective equipment when compressing springs.
Caterpillar cat 303.5 e2cr mini hydraulic excavator (prefix dwd) service repa...dueikdkmem
This document provides instructions for removing and installing inlet and exhaust valve springs on a 303.5E2 CR mini hydraulic excavator. It describes the required tools, safety precautions, and step-by-step procedures for positioning the piston, compressing the valve spring, and removing the valve keepers and spring. Reinstallation is done in reverse order, and instructions are provided for inspecting valve spring components.
Caterpillar cat 303.5 e2cr mini hydraulic excavator (prefix dwd) service repa...fujsjfjkskekfm
This document provides instructions for removing and installing inlet and exhaust valve springs on a 303.5E2 CR mini hydraulic excavator. It describes the required tools and steps to position the piston at top dead center and compress the valve spring using a valve spring compressor tool. It explains how to safely remove the valve keepers, spring retainer, and valve spring. The installation procedure is described in reverse order.
Caterpillar cat 303.5 e2cr mini hydraulic excavator (prefix dwd) service repa...fujsjefjkskem
This document provides instructions for removing and installing inlet and exhaust valve springs on a 303.5E2 CR mini hydraulic excavator. It describes the required tools and steps to position the piston at top dead center and compress the valve spring using a valve spring compressor tool. The instructions then detail removing the valve cap, keepers, spring retainer, and spring. The installation process is described in reverse order.
Caterpillar cat 303.5 e2 mini hydraulic excavator (prefix jwy) service repair...cdfvvv1
The document provides instructions for removing and installing inlet and exhaust valves, valve springs, valve guides, and valve seat inserts on a Caterpillar 303.5E2 Mini Hydraulic Excavator engine. The procedures describe using various tools to compress valve springs, remove components in the proper sequence, and inspect parts to ensure correct installation. Safety notices are included to warn of potential injury from compressed springs and to keep components clean from contaminants.
Caterpillar cat 303.5 e2 mini hydraulic excavator (prefix jwy) service repair...fikskkdmmd1
The document provides instructions for removing and installing inlet and exhaust valves, valve springs, valve guides, and valve seat inserts on a Caterpillar 303.5E2 Mini Hydraulic Excavator engine. The procedures describe using various tools to compress valve springs, remove components in the proper sequence, and inspect parts to ensure correct installation. Safety notices are included to warn of potential injury from compressed springs and to keep components clean from contaminants.
Caterpillar cat 303.5 e2 mini hydraulic excavator (prefix jwy) service repair...fjskekfseik
The document provides instructions for removing and installing inlet and exhaust valves, valve springs, valve guides, and valve seat inserts on a Caterpillar 303.5E2 Mini Hydraulic Excavator engine. The procedures describe using various tools to compress valve springs, remove components in the proper sequence while keeping them clean, and reinstalling components in the reverse order of removal. Special tools and trained personnel are required for some tasks like removing valve guides and seats.
Caterpillar cat 303.5 e2 mini hydraulic excavator (prefix jwy) service repair...fjsjekdmmeme
The document provides instructions for removing and installing inlet and exhaust valves, valve springs, valve guides, and valve seat inserts on a Caterpillar 303.5E2 Mini Hydraulic Excavator engine. The procedures describe using various tools to compress valve springs, remove components in the proper sequence while keeping them clean, and reinstalling components in the reverse order of removal. Special tools and trained personnel are required for some tasks like removing valve guides and seats.
Caterpillar cat 303.5 e2cr mini hydraulic excavator (prefix dwd) service repa...fjjskekdmem
This service repair manual provides instructions for removing and installing inlet and exhaust valves, valve springs, valve guides, and valve seat inserts on a Caterpillar 303.5E2CR Mini Hydraulic Excavator. The document outlines the required tools and multi-step procedures, including ensuring pistons are at top dead center and using valve spring compressors. Safety notices are provided to wear protective equipment when compressing springs.
Caterpillar cat 303.5 e2cr mini hydraulic excavator (prefix dwd) service repa...dueikdkmem
This document provides instructions for removing and installing inlet and exhaust valve springs on a 303.5E2 CR mini hydraulic excavator. It describes the required tools, safety precautions, and step-by-step procedures for positioning the piston, compressing the valve spring, and removing the valve keepers and spring. Reinstallation is done in reverse order, and instructions are provided for inspecting valve spring components.
Caterpillar cat 303.5 e2cr mini hydraulic excavator (prefix dwd) service repa...fujsjfjkskekfm
This document provides instructions for removing and installing inlet and exhaust valve springs on a 303.5E2 CR mini hydraulic excavator. It describes the required tools and steps to position the piston at top dead center and compress the valve spring using a valve spring compressor tool. It explains how to safely remove the valve keepers, spring retainer, and valve spring. The installation procedure is described in reverse order.
Caterpillar cat 303.5 e2cr mini hydraulic excavator (prefix dwd) service repa...fujsjefjkskem
This document provides instructions for removing and installing inlet and exhaust valve springs on a 303.5E2 CR mini hydraulic excavator. It describes the required tools and steps to position the piston at top dead center and compress the valve spring using a valve spring compressor tool. The instructions then detail removing the valve cap, keepers, spring retainer, and spring. The installation process is described in reverse order.
Caterpillar cat 303.5 e2cr mini hydraulic excavator (prefix dwd) service repa...udjjjskkdmme
This document provides instructions for removing and installing inlet and exhaust valve springs on a 303.5E2 CR mini hydraulic excavator. It describes the required tools, safety precautions, and step-by-step procedures for positioning the piston, compressing the valve spring, and removing the valve spring retainer and valve spring. Reinstallation is performed in the reverse order.
Caterpillar cat 314 e lcr excavator (prefix ycw) service repair manual (ycw00...dikskekmdmdm
This document provides instructions for removing and installing inlet and exhaust valves on a Caterpillar 314E excavator. The removal process involves using a valve spring compressor tool to compress the springs, removing the keepers, and then removing the springs and valves. For installation, the valves and springs are reinstalled and the compressor tool is used to replace the keepers while compressing the springs. Proper cleaning, inspection, and lubrication of parts is emphasized.
Caterpillar cat 314 e cr excavator (prefix ycw) service repair manual (ycw000...dikskekmdmdm
This document provides instructions for removing and installing inlet and exhaust valves on a Caterpillar C4.4 engine. The removal procedure involves using a valve spring compressor tool to compress the valve springs, allowing the removal of valve keepers and other components. Installation is the reverse of removal, requiring cleaning of components and lubricating the valve stems before insertion into the cylinder head. Proper tools and safety precautions are emphasized throughout.
Caterpillar cat 314 e sr excavator (prefix ycw) service repair manual (ycw000...dikskekmdmdm
This document provides instructions for removing and installing inlet and exhaust valves on a Caterpillar C4.4 engine. The removal procedure involves using a valve spring compressor tool to compress the valve springs, allowing the removal of valve keepers and other components. Installation is the reverse of removal, requiring cleaning of components and lubricating the valve stems before insertion into the cylinder head. Proper tools and safety precautions are emphasized throughout.
This document provides instructions for removing and installing inlet and exhaust valves on a Caterpillar C4.4 engine. The removal procedure involves using a valve spring compressor tool to compress the valves springs, allowing the removal of valve keepers and other components. Installation is the reverse of removal, requiring cleaning of components and lubricating the valve stems before inserting valves into the cylinder head. Proper tools and safety precautions are emphasized throughout.
This document provides instructions for removing and installing inlet and exhaust valves on a Caterpillar C4.4 engine. The removal procedure involves using a valve spring compressor tool to compress the valve springs, allowing the removal of valve keepers and other components. Installation is the reverse of removal, requiring cleaning of components and lubricating the valve stems before insertion into the cylinder head. Proper tools and safety precautions are emphasized throughout.
Caterpillar Cat 314E SR Excavator (Prefix YCW) Service Repair Manual (YCW0000...fjdkksmemd
This document provides instructions for removing and installing inlet and exhaust valves on a Caterpillar C4.4 engine. The removal procedure involves using a valve spring compressor tool to compress the valves springs, allowing the removal of valve keepers and other components. Installation is the reverse of removal, requiring cleaning of components and lubricating the valve stems before inserting valves into the cylinder head. Proper tools and safety precautions are emphasized throughout.
Caterpillar cat 314 e sr excavator (prefix ycw) service repair manual (ycw000...fhsjejkdm
The document provides instructions for removing and installing engine oil cooler components on a Caterpillar 314E excavator. Key steps include draining coolant, removing bolts and spacers securing the oil cooler, and installing a new gasket. Safety notices emphasize keeping parts clean and containing fluids to prevent contamination.
Caterpillar cat 314 e cr excavator (prefix ycw) service repair manual (ycw000...jfdjskmdmme
The document provides instructions for removing and installing inlet and exhaust valves on a Caterpillar C4.4 engine. It describes using a valve spring compressor tool to compress the valve springs, allowing removal of the valve keepers and springs. It also details cleaning and inspecting the valve components, lubricating the valve stems, and correctly installing the valves, stem seals, springs and keepers. Proper safety procedures are emphasized when working with the compressed springs.
Caterpillar cat 314 e cr excavator (prefix ycw) service repair manual (ycw000...fhsjejkdm
The document provides instructions for removing and installing engine oil cooler components on a Caterpillar 314E excavator. Key steps include draining coolant, removing mounting bolts and spacer, and removing the oil cooler assembly. Installation involves cleaning components, installing a new gasket, and securing the oil cooler assembly with bolts and spacer. Proper containment of fluids and cleaning of parts is emphasized.
Caterpillar cat 314 e sr excavator (prefix ycw) service repair manual (ycw000...jfdjskmdmme
This document provides instructions for removing and installing inlet and exhaust valves on a Caterpillar 314E excavator. The removal process involves using a valve spring compressor tool to compress the springs, removing the keepers, and then removing the springs and valves. For installation, the valves and springs are reinstalled and the compressor tool is used to replace the keepers while compressing the springs. Proper cleaning, inspection, and lubrication of parts is emphasized.
CLAAS DOMINATOR 86 (Type 087) Combine Service Repair Manual.pdfudjkdksmmd
This document provides specifications for the CLAAS Dominator 106 combine harvester, including technical data, dimensions, weights, settings, capacities, and descriptions of components. Key details include the cutterbar widths ranging from 3.90 to 7.50 meters, overall machine width of 5565 to 9225 mm depending on cutterbar size, 6500 liter grain tank capacity, 151 kW six-cylinder engine, hydrostatic three-gear transmission for forward and reverse travel, and hydraulic brakes and steering. Dimensional drawings show the harvester in operating and transport positions.
CLAAS DOMINATOR 88 (Type 092) Combine Service Repair Manual.pdfudjkdksmmd
This document provides specifications for the CLAAS Dominator 106 combine harvester including technical data, dimensions, weights, settings, and capacities. It includes information on the cutterbar, threshing equipment, straw walkers, cleaning system, engines, transmission, hydraulics, electrical system, and auxiliary equipment. Dimensions and specifications are provided for operating and transport positions. Settings such as hydraulic oil pressures, tire pressures, and wheel bolt torques are also listed. The document contains detailed technical specifications for the CLAAS Dominator 106 combine harvester model.
CLAAS DOMINATOR 78H (Type 079) Combine Service Repair Manual.pdfudjkdksmmd
This document provides specifications for the CLAAS Dominator 106 combine harvester, including technical data, dimensions, weights, settings, capacities, and descriptions of components. Key details include the cutterbar widths of 3.90-7.50 meters, overall transport width of 4365-8025 mm depending on cutterbar size, 6500 liter grain tank capacity, 151 kW six-cylinder engine, hydrostatic ground drive with variable speeds up to 20 km/h, and straw walker system with six racks and two crankshafts for separation and cleaning.
CLAAS DOMINATOR 76 (Type 084) Combine Service Repair Manual.pdfudjkdksmmd
This document provides specifications for the CLAAS Dominator 106 combine harvester, including technical data, dimensions, weights, settings, capacities, and descriptions of components. Key details include the cutterbar widths ranging from 3.90 to 7.50 meters, overall machine width of 5565 to 9225 mm depending on cutterbar size, transport width of 4365 to 8025 mm, length of 7770 to 10640 mm, and empty weight ranging from 9060 kg to over 17,000 kg fully equipped. Engine specifications, hydraulic pressures, oil capacities, and other technical details are also listed.
CLAAS DOMINATOR 78 (Type 091) Combine Service Repair Manual.pdfudjkdksmmd
This document provides specifications for the CLAAS Dominator 106 combine harvester including technical data, dimensions, weights, settings, and capacities. It includes information on the cutterbar, threshing equipment, straw walkers, cleaning system, engines, transmission, hydraulics, electrical system, and auxiliary equipment. Dimensions and specifications are provided for operating and transport positions. Settings such as hydraulic oil pressures, reel speeds, and concave clearances are also listed. The document contains detailed technical information about the components and configurations of the CLAAS Dominator 106 combine.
The document provides disassembly instructions for the final drive carriers, hubs, and brakes of the front and rear axles of a M322D wheeled excavator. It lists the required tools and presents step-by-step instructions with accompanying illustrations to remove components such as carrier housings, planetary gears, ring gear housings, pistons, discs, seals, bearings, and hubs. Safety notices are included to warn of risks from released pressures and springs.
This document provides instructions for disassembling and assembling the front and rear axles of a M322D MH wheeled excavator. It details 22 steps for disassembling the front axle, removing components like carrier housings, gears, seals, bearings and pistons. It then provides 23 steps for reassembling the front axle in reverse order. A similar level of detail is given for the 23 step disassembly and 22 step assembly of the rear axle. Precautions and required specialty tools are also listed.
This document provides disassembly instructions for the front and rear axles, carriers, hubs, and brakes of an M322C wheeled excavator. The front axle disassembly procedure involves 41 steps to remove components like the carrier housing, planetary gears, ring gear assembly, hub assembly, and spindle components. The rear axle disassembly involves 27 steps including removing the brake drum, gear assemblies, axle, hub assembly, dust shield, brake assembly, and spindle. Detailed illustrations are provided to identify each part and tooling required is listed.
The document provides instructions for disassembling and assembling the front axle of a M322D MH Wheeled Excavator. It lists the required tools and gives step-by-step instructions to remove components such as the carrier housing, planetary gears, bearings, seals, and brake discs. Reassembly instructions are also provided, with steps like installing bearings, seals, and torque specifications.
This document provides instructions for disassembling and assembling the swing drive of a M322C wheeled excavator. It describes 28 steps to disassemble the swing drive into individual components such as gears, shafts, bearings, seals and housing. It also lists the required tools. The assembly procedure is described in reverse order, with precautions noted for installing components with spring tension.
This document provides instructions for disassembling and assembling the swing drive of an M322C wheeled excavator. It begins with 28 steps to disassemble the swing drive components. This includes removing retaining rings, springs, discs, plates, seals, bearings, and gears. It then lists 21 steps for reassembling the swing drive components in reverse order. Precautions and special tools required are listed. Lubrication and cleaning of parts is emphasized prior to assembly.
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This document provides instructions for removing and installing inlet and exhaust valve springs on a 303.5E2 CR mini hydraulic excavator. It describes the required tools, safety precautions, and step-by-step procedures for positioning the piston, compressing the valve spring, and removing the valve spring retainer and valve spring. Reinstallation is performed in the reverse order.
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This document provides instructions for removing and installing inlet and exhaust valves on a Caterpillar C4.4 engine. The removal procedure involves using a valve spring compressor tool to compress the valve springs, allowing the removal of valve keepers and other components. Installation is the reverse of removal, requiring cleaning of components and lubricating the valve stems before insertion into the cylinder head. Proper tools and safety precautions are emphasized throughout.
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This document provides instructions for removing and installing inlet and exhaust valves on a Caterpillar C4.4 engine. The removal procedure involves using a valve spring compressor tool to compress the valves springs, allowing the removal of valve keepers and other components. Installation is the reverse of removal, requiring cleaning of components and lubricating the valve stems before inserting valves into the cylinder head. Proper tools and safety precautions are emphasized throughout.
This document provides instructions for removing and installing inlet and exhaust valves on a Caterpillar C4.4 engine. The removal procedure involves using a valve spring compressor tool to compress the valve springs, allowing the removal of valve keepers and other components. Installation is the reverse of removal, requiring cleaning of components and lubricating the valve stems before insertion into the cylinder head. Proper tools and safety precautions are emphasized throughout.
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This document provides instructions for removing and installing inlet and exhaust valves on a Caterpillar C4.4 engine. The removal procedure involves using a valve spring compressor tool to compress the valves springs, allowing the removal of valve keepers and other components. Installation is the reverse of removal, requiring cleaning of components and lubricating the valve stems before inserting valves into the cylinder head. Proper tools and safety precautions are emphasized throughout.
Caterpillar cat 314 e sr excavator (prefix ycw) service repair manual (ycw000...fhsjejkdm
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This document provides specifications for the CLAAS Dominator 106 combine harvester, including technical data, dimensions, weights, settings, capacities, and descriptions of components. Key details include the cutterbar widths ranging from 3.90 to 7.50 meters, overall machine width of 5565 to 9225 mm depending on cutterbar size, 6500 liter grain tank capacity, 151 kW six-cylinder engine, hydrostatic three-gear transmission for forward and reverse travel, and hydraulic brakes and steering. Dimensional drawings show the harvester in operating and transport positions.
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The report provides a complete roadmap for setting up an Automotive Engine Valve. It covers a comprehensive market overview to micro-level information such as unit operations involved, raw material requirements, utility requirements, infrastructure requirements, machinery and technology requirements, manpower requirements, packaging requirements, transportation requirements, etc.
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2. Shutdown SIS
Previous Screen
Product: MINI HYD EXCAVATOR
Model: 303.5E2 CR MINI HYD EXCAVATOR DWD
Configuration: 303.5E2CR Mini Hydraulic Excavator DWD00001-UP (MACHINE) POWERED BY C1.7 Engine
Disassembly and Assembly
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built
Machines
Media Number -UENR0128-11 Publication Date -01/08/2015 Date Updated -09/06/2016
i05243403
Inlet and Exhaust Valve Springs - Remove and Install
SMCS - 1108-010
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A
7F-4292 Valve Spring Compressor 1
9U-6144 Adapter 1
Start By:
a. Remove the rocker shaft and push rod.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
Note: The following procedure should be adopted in order to remove the valve springs when the
cylinder head is installed to the engine. Refer to Disassembly and Assembly, "Inlet and Exhaust
Valves - Remove and Install" for the procedure to remove the valve springs from a cylinder head
that has been removed from the engine.
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3. Note: Ensure that the appropriate piston is at top dead center before the valve spring is removed.
Failure to ensure that the piston is at top dead center may allow the valve to drop into the cylinder
bore.
Illustration 1 g02725096
Illustration 2 g02725099
Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
NOTICE
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4. Ensure that the valve spring is compressed squarely or damage to the
valve stem may occur.
1. Follow Step 1.a through Step 1.d in order to position the appropriate piston at top dead
center.
a. Install Tooling (A) in position on the cylinder head in order to compress a valve
spring (4) for the appropriate piston.
b. Use Tooling (A) in order to compress valve spring (4) and open the valve slightly.
Note: Do not compress the spring so that valve spring retainer (3) touches the valve
stem seal.
c. Rotate the crankshaft carefully, until the piston touches the valve.
Note: Do not use excessive force to turn the crankshaft. The use of force can result in
bent valve stems.
d. Continue to rotate the crankshaft and gradually release the pressure on Tooling (A)
until the piston is at the top dead center position. The valve is now held in a position
that allows the valve spring to be safely removed.
Note: If all valve springs require replacement, the procedure can be carried out on two
cylinders at the same time. The procedure can be carried out on the following pairs of
cylinders. 1 with 4 and 2 with 3. Ensure that all of the valve springs are installed before
changing from one pair of cylinders to another pair of cylinders.
NOTICE
Do not turn the crankshaft while the valve springs are removed.
2. Remove valve cap (1). Apply sufficient pressure to Tooling (A) in order to allow removal of
valve keepers (2).
Note: Do not compress the spring so that valve spring retainer (3) touches the valve stem
seal.
3. Slowly release pressure on Tooling (A).
4. Remove valve spring retainer (3) and remove valve spring (4).
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5. Illustration 3 g02725101
5. Remove Tooling (A).
6. Remove valve stem seals (5).
7. Repeat Step 2 through Step 5 in order to remove the remaining valve springs from the
appropriate cylinder.
Installation Procedure
1. Install the inlet and exhaust valve springs (4) in the reverse order of removal.
a. Inspect valve springs (4) for damage and for the correct length. Refer to
Specifications, "Cylinder Head Valves " for further information.
Copyright 1993 - 2020 Caterpillar Inc.
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6. Shutdown SIS
Previous Screen
Product: MINI HYD EXCAVATOR
Model: 303.5E2 CR MINI HYD EXCAVATOR DWD
Configuration: 303.5E2CR Mini Hydraulic Excavator DWD00001-UP (MACHINE) POWERED BY C1.7 Engine
Disassembly and Assembly
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built
Machines
Media Number -UENR0128-11 Publication Date -01/08/2015 Date Updated -09/06/2016
i05243407
Inlet and Exhaust Valves - Remove and Install
SMCS - 1105-010
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 5S-1330 Valve Spring Compressor 1
Start By:
a. Remove the cylinder head.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
1. Clean the bottom mating surface of the cylinder head. Check the depth of the valves below
the face of the cylinder head before the valve springs are removed. Refer to Specifications,
"Cylinder Head Valves" for the correct dimensions.
2. Place a temporary identification mark on the heads of the valves in order to identify the
correct position.
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7. 3. Use a suitable lifting device to position the cylinder head with the valve springs upward.
The weight of the cylinder head is approximately 23 kg (51 lb).
Illustration 1 g02722926
Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
4. Install Tooling (A) in position on cylinder head (2) and compress the valve spring in order
to remove inlet and exhaust valves (1).
Illustration 2 g02722927
NOTICE
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8. Ensure that the valve spring is compressed squarely or damage to the
valve stem may occur.
5. Remove valve cap (3). Apply sufficient pressure to Tooling (A) in order to remove valve
keepers (4).
6. Slowly release pressure on Tooling (A).
7. Place a temporary identification mark on valve spring (3) in order to identify the correct
position.
8. Remove valve spring retainer (5). Remove valve spring (6).
9. Repeat Step 4 through Step 8 for the remaining valves.
10. Remove Tooling (A).
Illustration 3 g02722928
11. Remove valve stem seals (8) from cylinder head (2).
12. Use a suitable lifting device in order to turn over cylinder head (2).
13. Remove the inlet and exhaust valves.
Installation Procedure
1. Install inlet and exhaust valves (4) in the reverse order of removal.
2. Clean all components of the cylinder head assembly. Ensure that all ports, all coolant
passages, and all lubrication passages in the cylinder head are free from debris. Follow Step
2.a through Step 2.d in order to inspect the components of the cylinder head assembly.
Replace any components that are worn or damaged.
a. Inspect the cylinder head for wear and for damage. Refer to System Operation,
Testing and Adjusting, "Cylinder Head Inspect" for the correct procedure.
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9. b. Inspect the valve seats for wear and for damage. Refer to Specifications, "Cylinder
Head Valves" for further information.
c. Inspect the valve guides for wear and for damage. Refer to Specifications, "Cylinder
Head Valves" and System Operation, Testing and Adjusting, "Valve Guide - Inspect"
for further information.
d. Inspect the valves for wear and for damage. Refer to Specifications, "Cylinder Head
Valves" for further information.
e. Inspect valve springs (3) for damage and for the correct length. Refer to
Specifications, "Cylinder Head Valves " for further information.
3. Lubricate the stems of valves (8) with clean engine oil. Install valves (8) in the appropriate
positions in the cylinder head. Check the depth of the valves below the face of the cylinder
head. Refer to System Operation, Testing and Adjusting, "Valve Depth - Inspect" for more
information.
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
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10. Shutdown SIS
Previous Screen
Product: MINI HYD EXCAVATOR
Model: 303.5E2 CR MINI HYD EXCAVATOR DWD
Configuration: 303.5E2CR Mini Hydraulic Excavator DWD00001-UP (MACHINE) POWERED BY C1.7 Engine
Disassembly and Assembly
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built
Machines
Media Number -UENR0128-11 Publication Date -01/08/2015 Date Updated -09/06/2016
i05243419
Inlet and Exhaust Valve Guides - Remove and Install
SMCS - 1104-010
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 387-1311 Valve Guide Driver Kit 1
Start By:
a. Remove the inlet valves and the exhaust valves.
NOTICE
Removal and installation of the valve guide and valve seat must be
carried out by personnel with the correct training. Also special
machinery is required. For more information, refer to your authorized
Caterpillar dealer.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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11. Illustration 1 g02720116
1. Remove inlet and exhaust valve seals (1). Use Tooling (A) in order to remove valve guides
(2) from cylinder head (3).
2. Repeat the Step 1 for the remaining valve guides.
Installation Procedure
Note: Ensure that the cylinder head is clean and free from machining debris. Clean the
parent bores in the cylinder head and lubricate the new valve guides.
1. Install inlet and exhaust valve guides (2) in the reverse order of removal.
a. Use Tooling (A) to install inlet and exhaust valve guides (2).
Copyright 1993 - 2020 Caterpillar Inc.
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12. Shutdown SIS
Previous Screen
Product: MINI HYD EXCAVATOR
Model: 303.5E2 CR MINI HYD EXCAVATOR DWD
Configuration: 303.5E2CR Mini Hydraulic Excavator DWD00001-UP (MACHINE) POWERED BY C1.7 Engine
Disassembly and Assembly
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built
Machines
Media Number -UENR0128-11 Publication Date -01/08/2015 Date Updated -09/06/2016
i05243425
Inlet and Exhaust Valve Seat Inserts - Remove and Install
SMCS - 1103-010
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 389-7515 Inlet Valve Seat Extractor Tool 1
B 389-7514 Exhaust Valve Seat Extractor Tool 1
Start By:
a. Remove the inlet and exhaust valves.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
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13. Illustration 1 g02731130
Illustration 2 g02731132
1. Use Tooling (B) to remove exhaust valve seat inserts (1).
Note: The bigger valve seat inserts (1) are for the inlet valves. The smaller valve seat inserts
(1) are for the exhaust valves.
2. Use Tooling (A) to remove inlet valve seat inserts (1).
Installation Procedure
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
1. Install new inlet and exhaust valve seat inserts (1) in the reverse order of removal.
Note: The bigger valve seat inserts (1) are for the inlet valves. The smaller valve seat inserts
(1) are for the exhaust valves.
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14. 2. If necessary, correct the seat surface with the valve seat cutter. Refer to System Operation,
Testing and Adjusting, "Valve Guide - Inspect".
Copyright 1993 - 2020 Caterpillar Inc.
All Rights Reserved.
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15. Shutdown SIS
Previous Screen
Product: MINI HYD EXCAVATOR
Model: 303.5E2 CR MINI HYD EXCAVATOR DWD
Configuration: 303.5E2CR Mini Hydraulic Excavator DWD00001-UP (MACHINE) POWERED BY C1.7 Engine
Disassembly and Assembly
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built
Machines
Media Number -UENR0128-11 Publication Date -01/08/2015 Date Updated -09/06/2016
i05243427
Engine Oil Relief Valve - Remove and Install
SMCS - 1315-010
Removal Procedure
Start By:
a. Remove the engine oil filter.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
Illustration 1 g02720288
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16. 1. Remove adapter (1).
Personal injury can result from being struck by parts propelled by a
released spring force.
Make sure to wear all necessary protective equipment.
Follow the recommended procedure and use all recommended tooling to
release the spring force.
Illustration 2 g02720291
2. Remove relief valve assembly (2).
Illustration 3 g02720293
3. Use long nose pliers to remove sleeve (3) from the housing. Remove ball (4) and spring (5)
from the bore for the relief valve.
Installation Procedure
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17. Note: Ensure that all components are clean and free from wear or damage. If necessary,
replace any components that are worn or damaged. If the bore for the relief valve in the
housing is worn or damaged, the complete relief valve assembly must be replaced.
1. Install the engine oil relief valve in the reverse order of removal.
Copyright 1993 - 2020 Caterpillar Inc.
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18. Shutdown SIS
Previous Screen
Product: MINI HYD EXCAVATOR
Model: 303.5E2 CR MINI HYD EXCAVATOR DWD
Configuration: 303.5E2CR Mini Hydraulic Excavator DWD00001-UP (MACHINE) POWERED BY C1.7 Engine
Disassembly and Assembly
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built
Machines
Media Number -UENR0128-11 Publication Date -01/08/2015 Date Updated -09/06/2016
i05243463
Engine Oil Pump - Remove
SMCS - 1304-011
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1P-2321 Puller As. 1
Start By:
a. Remove the front housing.
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
NOTICE
Care must be taken to ensure that fluids are contained during
performance of inspection, maintenance, testing, adjusting and repair
of the product. Be prepared to collect the fluid with suitable containers
before opening any compartment or disassembling any component
containing fluids.
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19. Thank you very much for
your reading. Please Click
Here. Then Get COMPLETE
MANUAL. NO WAITING
NOTE:
If there is no response to
click on the link above,
please download the PDF
document first and then
click on it.
20. Dispose of all fluids according to local regulations and mandates.
Illustration 1 g02718964
1. Remove nut (1) and the washer.
Illustration 2 g02718965
2. Use Tooling (A) and remove gear (2).
Illustration 3 g02718966
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21. 3. Remove bolts (3). Remove engine oil pump (4) and the gasket.
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22. Shutdown SIS
Previous Screen
Product: MINI HYD EXCAVATOR
Model: 303.5E2 CR MINI HYD EXCAVATOR DWD
Configuration: 303.5E2CR Mini Hydraulic Excavator DWD00001-UP (MACHINE) POWERED BY C1.7 Engine
Disassembly and Assembly
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built
Machines
Media Number -UENR0128-11 Publication Date -01/08/2015 Date Updated -09/06/2016
i05243466
Engine Oil Pump - Install
SMCS - 1304-012
Installation Procedure
NOTICE
Keep all parts clean from contaminants.
Contaminants may cause rapid wear and shortened component life.
NOTICE
If any part of the engine oil pump is worn or damaged, the complete
assembly of the engine oil pump must be replaced.
1. Ensure that all components of the engine oil pump are clean and free from wear and
damage.
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