345C Excavator Hydraulic System Pump Control (Output Flow) - Adjust Caterpillar


Pump Control (Output Flow) - Adjust
`
1.1. Adjustment Of Output Flow Under Total Horsepower Control
2.1. Adjustment of the Maximum Output Flow of the Pump

Adjust the pump output flow if the flow test results differ greatly from the specifications.

Adjustment Of Output Flow Under Total Horsepower Control



Illustration 1g01132781
(1) Locknut
(2) Adjustment screw
(3) Locknut
(4) Fine adjustment screw

Adjust the flow of the drive pump.

  1. Loosen locknut (1).

  2. Turning adjustment screw (2) clockwise will increase the output flow of the pump. Turning adjustment screw (2) counterclockwise will decrease the output flow of the pump. Fine adjustments can be made by loosening locknut (3). Turn screw (4) counterclockwise in order to decrease output flow.

  3. Tighten locknut (1) to a torque of 160 ± 24 N·m (118 ± 18 lb ft). Tighten locknut (3) to a torque of 16 ± 2.4 N·m (12 ± 2 lb ft).

  4. To adjust the idler pump, repeat steps 1 through 3.

Adjustment of the Maximum Output Flow of the Pump



Illustration 2g01140460
Pump compartment
(5) Locknut
(6) Adjustment screw

Adjust the maximum output flow of the drive pump.

  1. Loosen locknut (5).

  2. In order to adjust maximum output flow, turn adjustment screw (6). Turning adjustment screw (6) clockwise will decrease the maximum output flow of the pump. Turning adjustment screw (6) counterclockwise will increase the maximum output flow of the pump.

  3. Tighten locknut (5) to a torque of 240 ± 36 N·m (177 ± 27 lb ft).

  4. Adjust the maximum output flow of the idler pump in the same manner. Repeat Steps 1 through 3.

Information System:

3500B High Displacement Generator Set Engines Reference Material
C9 Industrial Engines Plate Locations and Film Locations
C7 Petroleum Engine Engine Oil and Filter - Change
3508C, 3512C and 3516C Marine Engines Turbocharger Inlet Pressure Sensor - Remove and Install
3508C, 3512C and 3516C Marine Engines Coolant Temperature Sensor - Remove and Install
3508C, 3512C and 3516C Marine Engines Turbocharger Outlet Pressure Sensor - Remove and Install
307D, 311D, 312D, 313D, 315D, 318D, 319D, 320D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 340D, 345D, 349D, 374D, 390D and M325D Excavators Air Conditioning and Heating Evaporator Coil
307D, 311D, 312D, 313D, 315D, 318D, 319D, 320D, 323D, 324D, 325D, 326D, 328D, 329D, 330D, 336D, 340D, 345D, 349D, 374D, 390D and M325D Excavators Air Conditioning and Heating Refrigerant Receiver-Dryer
C32 Marine Engines Analog Sensor Supply Circuit - Test
C9 Industrial Engines Diagnostic Flash Code Retrieval
C7 Industrial Engine Engine Monitoring System (EMS)
3126B Petroleum Engine ECM/Personality Module - Test
2004/12/01 Updated Information to Operation and Maintenance Manual, SEBU6251 , "Engine Oil (3116 and 3126 Marine Engines" {1348, 7581}
3508C, 3512C and 3516C Marine Engines Engine Oil Pressure Sensor - Remove and Install
3406C Engines for Caterpillar Built Machines Alternator and Regulator
3508C, 3512C and 3516C Marine Engines Fuel Pressure Sensor - Remove and Install
3508C, 3512C and 3516C Marine Engines Crankcase Pressure Sensor - Remove and Install
3508C, 3512C and 3516C Marine Engines Aftercooler Coolant Temperature Sensor - Remove and Install
3508C, 3512C and 3516C Marine Engines Fuel Priming Pump - Remove and Install
C0.5, C0.7, C1.1/3011C, C1.5/3013C, C1.6 and C2.2/3024C/3024CT Industrial Engines and Engines for Caterpillar Built Machines Coolant Temperature Switch - Remove and Install
C0.5, C0.7, C1.1/3011C, C1.5/3013C, C1.6 and C2.2/3024C/3024CT Industrial Engines and Engines for Caterpillar Built Machines Water Temperature Regulator - Remove and Install
C0.5, C0.7, C1.1/3011C, C1.5/3013C, C1.6 and C2.2/3024C/3024CT Industrial Engines and Engines for Caterpillar Built Machines Crankshaft Rear Seal - Install
3508C, 3512C and 3516C Marine Engines Electronic Unit Injector - Remove
3508C, 3512C and 3516C Marine Engines Electronic Unit Injector - Install