Toro Reelmaster 6500-D Service Manual page 70

Transmission Response Sluggish
Cause
Charge pressure low.
Servo control valve faulty.
Towing by-pass valve open.
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.
Pump worn or damaged.
Transmission Will Not Operate in Either Direction
Cause
Oil level in reservoir is low.
External control linkage misadjusted, disconnected,
binding or damaged.
Towing by-pass valve open.
Charge pressure low.
Servo control valve faulty.
Hydraulic System
Correction
TEST NO. 1. Inspect charge relief valve R5.
Repair or replace if defective.
Inspect control valve for:
Plugged control orifices.
Damaged mounting gasket.
Misadjusted or damaged neutral return spring.
Broken control connector pin.
Galled or stuck control spool.
Neutral switch misadjusted.
Repair or replace control valve if necessary.
Close valve.
Inspect wheel motors and repair or replace if worn or
damaged.
Inspect pump and repair or replace if worn or
damaged.
Correction
Fill reservoir to proper level.
Adjust or repair linkage.
Close valve.
TEST NO. 1. Inspect charge relief valve R5.
Repair or replace if defective.
Inspect control valve for:
Plugged control orifices.
Damaged mounting gasket.
Misadjusted or damaged neutral return spring.
Broken control connector pin.
Galled or stuck control spool.
Neutral switch misadjusted.
Repair or replace control valve if necessary.
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