Toro Reelmaster 6500–D Service Manual page 113

Front Reel Speed Erratic
Cause
Reel bearing or bedknife to reel adjustment too tight.
Electrical problem.
REAR Cutting Unit Problems
Cause
For problems with rear cutting unit reel operation, refer
to the Correction recommended for the front cutting
units.
NOTE: Rear cutting unit LIFT functions are controlled
by front valve block and pump section P2.
Cutting Unit(s) Will Not Raise
Cause
S1A, S4A, S6A, S7A, VS1A, S4B not shifting (See
Hydraulic Schematics to see which valve controls what
lift cylinders).
Reelmaster 6700–D only – check S7B, S8B, S9B for
No. 6 and 7 lift functions.
Lift arm pivots bindings.
R2A bypassing.
P2 pump section inefficient.
Internal leakage in lift cylinder(s).
Reelmaster 6500–D/6700–D
Correction
See Chapter 8 – Cutting Units.
See Chapter 5 – Electrical System.
Correction
Substitute R1A with R1B
S1A with S1B
S2A with S2B
VS1A with VS1B
S3A with S3B
Correction
Do electrical diagnostics to make sure that voltage is
being applied to solenoid for affected circuit and that
there is no electrical fault. See Chapter 5 – Electrical
System.
Test solenoid coil for valve of affected circuit. Replace
if faulty. See 5 – Electrical System.
Do cartridge valve service procedure for valve in
affected circuit.
Interchange solenoid from affected circuit with another
similar valve and check operation. Replace or repair
affected valve if faulty.
Lubricate bushings. Inspect for damage. Repair or
replace damaged parts.
TEST NO. 4. Adjust relief valve if necessary.
Do cartridge valve service procedure for valve R2A.
Replace R2A with a new valve.
TEST NO. 7. Repair or replace pump.
Check lift cylinder(s) and repair or replace if faulty.
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Hydraulic System