Service Manual

Reelmaster 6500–D/6700–D
Page 4 – 26
Hydraulic System
Front Reels Turn Too Fast
Cause Correction
VS1A not operating properly. Do electrical diagnostics to make sure that voltage is
being applied to VS1A and that there is no electrical
fault. See Chapter 5 – Electrical System.
Do cartridge service procedure for VS1A.
Interchange VS1A with VS1B and check operation.
Replace VS1A if faulty.
Front Reels Won’t Backlap (Mowing Operation OK)
Cause Correction
S3A not shifting. Do electrical diagnostics to make sure that voltage is
being applied to S3A and that there is no electrical
fault. See Chapter 5 – Electrical System.
Do cartridge service procedure for S3A.
Interchange S3A with S3B and check operation.
Replace S3A if faulty.
Front Reels Stop or Won’t Start – During Backlap Only
Cause Correction
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Motors stalling.
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Increase flow to motors by adjusting HOC selector
knob.
Load too high for motor. Decrease load.
Front Reels Stop Under Load
Cause Correction
R1A bypassing. TEST NO. 5. Adjust relief valve if necessary.
Do cartridge valve service procedure for valve R1A.
Replace R1A with a new valve.
P2 pump section inefficient. TEST NO. 7. Repair or replace pump.
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Internal leakage (by-passing oil) in reel motor or
malfunctioning cross–over relief valve in motor.
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TEST NO. 8. Excessive case drain flow may identify
faulty motor. Use hydraulic tester to perform reel motor
efficiency test. Repair or replace reel motor if faulty.