Standard Pump Compensator Valve Inspection - New Holland T8010 Manual

STANDARD PUMP COMPENSATOR VALVE INSPECTION

Perform this inspection only after completing the high
pressure standby check and the piston pump flow
test.
1
1. HIGH PRESSURE SPOOL
2. HIGH PRESSURE ADJUSTMENT SCREW
3. LOW PRESSURE ADJUSTMENT SCREW
Test Fitting and Tool Requirements:
•
17 mm wrench
•
3 mm Allen wrench
•
5 mm Allen wrench
Test Procedure:
- With two wrenches, disconnect the signal line tube
at the PFC pump compensator.
- Remove the compensator valve from the PFC
pump.
- Remove high pressure cap. Measure and record
the distance from the lock nut to the end of the high
pressure adjustment screw.
____________
- Remove low pressure cap. Measure and record the
distance from the lock nut to the end of the low
pressure adjustment screw.
____________
- Check for broken springs
- Remove high pressure spool. Make sure it moves
freely within the bore.
Section 35 - Hydraulic Systems, 3PT - Chapter 5
4
6
4. LOW PRESSURE SPOOL
5. CAP
6. LOCK NUT
- Remove low pressure spool. Make sure it moves
freely within the bore.
- Clean cored passages in the compensator valve.
- Assemble compensator valve. Set high and low
pres sur e adjus tment sc rews to their or iginal
positions.
- Reinstall compensator. Perform PFC Piston Pump
Flow Test.
- If the pump is still not able to meet specifications
remove PFC pump for repair or replacement. See
PFC Pump Section in this Service Manual.
35-5-30
5
3
2
RH02B010