Hydraulic
System
Reelmaster 6500-D/6700-D Hydraulic SystemPage 4 - 29
Transmission Will Not Operate in Either Direction (Continued)
Cause Correction
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.
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
Scored valve plate on wheel motor. Remove backplate and inspect bronze surface of valve
plate. Replace valve plate if scored.
Scored or worn piston shoes on wheel motor. 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
Severely scored internal parts in wheel motor. Disassemble motor completely. Inspect and clean all
parts. Replace all worn parts or replace complete
motor if necessary. Flush hydraulic system.
Brakes binding. See Chapter 6 - Axles, Planetaries, and Brakes.
Splined coupler between wheel motor shaft and
planetary wheel drive damaged or broken.
See Chapter 6 - Axles, Planetaries, and Brakes.
Planetary wheel drive damaged. See Chapter 6 - Axles, Planetaries, and Brakes.
Wheel Motor Will Not Hold Load W hen System is in Neutral
Cause Correction
No make up fluid from charge pump. TEST NO. 1. Inspect charge relief valve R5.
Repair or replace if defective.
Scored valve plate or piston shoes on wheel motor. Disassemble motor and inspect valve plate and piston
shoes. Replace as r equired.
