Relief Valve (Charge) - Test and Adjust
Show/hide table
 | |
| Illustration 1 | g00895075 |
- Test the hydraulic pressure while the emulsion system is operating. You can also check the pressure by using the additive spray system. Read the pressure gauge.
- The charge pressure should be 1520 ± 140 kPa (220 ± 20 psi). If the pressure reading is incorrect, the charge relief valve on the pump needs to be adjusted. Also, the case drain pressure could be too high due to components in the pump or in the motor that are worn.
- Remove the charge pressure relief valve. Add shims in order to increase the charge pressure, as needed. Remove shims in order to decrease the charge pressure, as needed.
- Repeat Step 2 through Step 4 until the charge pressure is within the correct range of tolerance.
Show/hide table
 | |
| Illustration 2 | g00895081 |
- Remove the gauge.
Caterpillar Information System:
RM-250C Reclaimer Mixer and RM-350B and RR-250B Road Reclaimer/Soil Stabilizers Additive Spray System Piston Pump Flow - Test
2002/06/10 Installing a Stiffener Plate to the Lift Cylinder Tube Assemblies Increases Service Life {5057}
R1600G Load Haul Dump Steering System Solenoid Valve (Reversible Steering)
R1600G Load Haul Dump Hydraulic System Pilot Control Valve
R1600G Load Haul Dump Steering System Pressure Reducing Valve (Steering Pilot)
2002/07/15 New Flash File Software Is Used for Product Link 151/201 {7606, 7620}
3056E Industrial Engine Coolant Temperature Sensor
2002/05/27 Engine Tool Lists And Machine Tool Lists Are Available On The Caterpillar Intranet {0600}
RM-250C, RR-250B and RM-350B Additive Spray System Additive Spray System Hydraulic Filter - Replace
797B Off-Highway Truck Filter and Screen Locations
RM-250C, RR-250B and RM-350B Additive Spray System Additive Spray System Pump - Lubricate
RM-250C, RR-250B and RM-350B Additive Spray System Additive Spray System Nozzles - Clean
814F Wheel Dozer, 815F Soil Compactor and 816F Landfill CompactorEngine Supplement Electronic Unit Injector - Remove
797B Off-Highway Truck Engine Air Precleaner - Clean
793C XQ Off-Highway Truck and 793C Off-Highway Truck Engine Supplement Fan Drive (Hydraulic) - Remove
814F Wheel Dozer, 815F Soil Compactor and 816F Landfill CompactorEngine Supplement Electronic Unit Injector - Install
RM-250C, RR-250B and RM-350B Additive Spray System Setup Procedure
CP-533C, CP-563C, CS-533C, CS-563C, CS-573C and CS-583C Paving Compactors Propel System Axle
814F Wheel Dozer, 815F Soil Compactor and 816F Landfill CompactorEngine Supplement Fuel Filter (Secondary) and Fuel Filter Base - Remove and Install - Engine in Chassis
797B Off-Highway Truck Suspension Cylinder Pressure Sensor (Payload)
814F Wheel Dozer, 815F Soil Compactor and 816F Landfill CompactorEngine Supplement Fan Drive - Disassemble
793C XQ Off-Highway Truck and 793C Off-Highway Truck Engine Supplement Fan Drive (Hydraulic) - Install
69D, 73D, 769C, 769D, 773B, 773D, 773E, 776B, 776C, 776D, 777B, 777C, 777D, 784B, 785, 785B, 789 and 793 Off-Highway Truck/Tractors and 771D, 775B, 775D and 775E Quarry Trucks Payload System Payload F02 - Suspension Cylinder (Right Front) Incorrect Charge
69D, 73D, 769C, 769D, 773B, 773D, 773E, 776B, 776C, 776D, 777B, 777C, 777D, 784B, 785, 785B, 789 and 793 Off-Highway Truck/Tractors and 771D, 775B, 775D and 775E Quarry Trucks Payload System Payload F03 - Suspension Cylinder (Left Rear) Incorrect Charge