Reelmaster 6500–D/6700–D
Page 4 – 23
Hydraulic System
Cause Correction
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Wheel motor(s) worn or damaged.
NOTE: If a motor has internal damage, it is likely that
the pump and other motor are also damaged.
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Inspect wheel motors and repair or replace if worn or
damaged.
Pump worn or damaged. Inspect pump and repair or replace if worn or
damaged.
Wheel Motor Turns While Unloaded, But Slows Down or Stops When Load Applied
Cause Correction
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Scored valve plate on wheel motor.
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Remove backplate and inspect bronze surface of valve
plate. Replace valve plate if scored.
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Scored or worn piston shoes on wheel motor.
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Disassemble motor and inspect condition of shoes on
pistons. Replace rotating kit assembly as a complete
set. DO NOT lap pistons.
Wheel Will Not Turn
Cause Correction
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Severely scored internal parts in wheel motor.
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Disassemble motor completely. Inspect and clean all
parts. Replace all worn parts or replace complete
motor if necessary. Flush hydraulic system.
Brakes binding. See Chapter6 – Wheels, Brakes and Steering.
Splined coupler between wheel motor shaft and
planetary wheel drive damaged or broken.
See Chapter 6 – Wheels, Brakes and Steering.
Planetary wheel drive damaged. See Chapter 6 – Wheels, Brakes and Steering.
Wheel Motor Will Not Hold Load When System is in Neutral
Cause Correction
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No make up fluid from charge pump.
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TEST NO. 1. Inspect charge relief valve. Repair or
replace if defective.
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Scored valve plate or piston shoes on wheel motor.
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Disassemble motor and inspect valve plate and piston
shoes. Replace as required.
Hydraulic
System
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