CP56, CS56, CP64, CS64, CP74 and CS74 Vibratory Soil Compactors Machine Systems Gear Pump Flow (Steering) - Test Caterpillar


Gear Pump Flow (Steering) - Test
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------ WARNING! ------

Personal injury can result from rotating and moving parts. Stay clear of all rotating and moving parts.

Never attempt adjustments while the machine is moving or the engine is running unless otherwise specified.

The machine must be parked on a level surface and the engine stopped.

Attach a "Do Not Operate" or similar warning tag to the start switch and controls before servicing, repairing, or making adjustments to the machine.


------ WARNING! ------

Personal injury or death can result from sudden machine movement.

Sudden movement of the machine can cause injury to persons on or near the machine.

To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine.


------ WARNING! ------

Personal injury can result from hydraulic oil pressure and hot oil.

Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.

Make sure all of the attachments have been lowered, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.



NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "AVSpare Tools and Shop Products Guide", for tools and supplies suitable to collect and contain fluids in AVSpare machines.

Dispose of all fluids according to local regulations and mandates.


Table 1
Required Tools 
Tool  Part
Number 
Description  Qty 
4C-9436  Flow Meter Gp
12 to 120 L/min (3 to 25 US gpm) 
6V-8713 Connector 
7J-9108 O-Ring Seal 
3D-2824 O-Ring Seal 
122-6871  Hydraulic Hose 
124-2150 Permanent Coupling
(90 degree elbow) 
124-2119 Permanent Coupling
(STORS female swivel) 
4C-6500  Digital Thermometer 

  1. Drive the machine to a smooth, horizontal surface.


    Illustration 1g01412481

  2. Move propulsion lever (1) to the NEUTRAL position.


    Illustration 2g01412483

  3. Move parking brake switch (2) to the ON position.


    Illustration 3g01412484

  4. Move throttle switch (3) to the LOW IDLE position.


    Illustration 4g01412486

  5. Move engine start switch (4) to the OFF position.


    Illustration 5g01415386

  6. Unhook latch (5) and open the engine compartment.


    Illustration 6g01415388

  7. Remove locking pin (6). Raise support bar (7), and lock the bar in position with the locking pin.


    Illustration 7g01415390

  8. Assemble Tool (A). Assemble Tool (B). Connect Tool (B) to the inlet side of Tool (A).


    Illustration 8g01415391
    The Engine is Shown From Right Side.

  9. Disconnect steering outlet hose (8).

  10. Connect Tool (B) to the outlet port of the steering pump.

  11. Connect steering pump outlet hose (8) to the outlet side of Tool (A).

  12. Move engine start switch (4) to the START position. Release the switch when the engine starts.

  13. Operate the engine at low idle for few minutes. Move throttle switch (3) to the HIGH IDLE position.

  14. Monitor the hydraulic oil temperature with Tool (C). Operate the machine until the oil temperature reaches 43 ± 5.6 °C (110 ± 10 °F).

  15. Read the flow on Tool (A). The flow should be 58.7 ± 1.3 L/min (15.5 ± 0.34 US gpm).

  16. Move throttle switch (3) to the LOW IDLE position.

  17. Move engine start switch (4) to the OFF position.

  18. Remove Tool (A) and Tool (B) from the steering pump. Reconnect steering pump outlet hose (8). Close the engine compartment.

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