Main Hydraulic Pump - Remove
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303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
[UENR0102]
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Swing Motor and Swing Drive - Assemble
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Main Hydraulic Pump - Assemble
HYDRAULIC SYSTEM
PUMP GP
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Main Hydraulic Pump - Remove
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Main Hydraulic Pump - Disassemble
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Main Hydraulic Pump - Assemble
1.1. Removal Procedure
Removal Procedure
Start By:
- Release the hydraulic system pressure. Refer to, "System Pressure - Release".
- Remove the counterweight. Refer to, "Counterweight - Remove and Install".
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| 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. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products. Dispose of all fluids according to local regulations and mandates. |
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses, and tubes in order to prevent fluid loss and to keep contaminants from entering the system.
- Disconnect hose assemblies (1), (2), (3), and (4) from main hydraulic pump (5). Remove hose (6) .
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| Illustration 1 | g01222114 |
- Attach a suitable lifting device to main hydraulic pump (5). The weight of main hydraulic pump (5) is approximately 45 kg (100 lb). Remove bolts (7) and remove main hydraulic pump (5) .
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| Illustration 2 | g01222142 |
Information System:
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Swing Motor and Swing Drive - Assemble
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Swing Motor and Swing Drive - Disassemble
303.5E2, 304E2, 305E2 and 305.5E2 Mini Excavator Machine Systems
Track - Remove and Install
303.5E2, 304E2, 305E2 and 305.5E2 Mini Excavator Machine Systems
Track Roller - Remove and Install
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Heater Core - Remove and Install
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Swing Motor and Swing Drive - Install
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Swing Motor and Swing Drive - Remove
S365C and S385C Demolition and Scrap Shears
Safety Messages
C9.3 Engines for Caterpillar Built Machines
Inlet and Exhaust Valve Guides - Remove and Install
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Swivel - Assemble
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Swivel - Disassemble
C9.3 Engines for Caterpillar Built Machines
Fuel Pressure Is Low
S365C and S385C Demolition and Scrap Shears
Specifications
C9.3 Engines for Caterpillar Built Machines
Sensor Supply - Test
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Main Hydraulic Pump - Disassemble
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Main Hydraulic Pump - Assemble
C9.3 Engines for Caterpillar Built Machines
Electrical Power Supply - Test
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Control Manifold (Pilot Oil) - Disassemble - Hydraulic Lockout, Swing Brake and Travel
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Control Manifold (Pilot Oil) - Assemble - Hydraulic Lockout, Swing Brake and Travel
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Pilot Valve (Travel) - Remove
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Pilot Valve (Travel) - Install
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Main Control Valve - Disassemble
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Main Control Valve - Assemble
303.5D CR, 304D CR, 305D CR and 305.5D CR Mini Hydraulic Excavators Machine Systems
Hydraulic Track Adjusters - Remove and Install