Toro Reelmaster 6500–D Service Manual page 110

Excessive Wheel Motor Case Drain Flow
Cause
Excessive internal wear in wheel motor.
Noisy Gear Pump Caused by Cavitation
Cause
Oil too heavy.
Suction line restricted.
Air leak in suction line.
Foaming Oil
Cause
Low oil level.
Air leak in suction line.
Wrong kind of oil.
Front Reels Will Not Turn
Cause
S1A not shifting.
NOTE: Lift function will also be affected.
Relief valve R1A stuck open.
NOTE: Lift function will also be affected.
Hydraulic System
Correction
Disassemble motor completely. Inspect parts and
replace as necessary. Case drain flow should not
exceed 7.6 L/m [2 gal/m] at full pressure.
Correction
Change to proper viscosity oil.
Check for bent or collapsed suction line. Check suction
screen in reservoir for blockage – drain and clean
reservoir if necessary.
Tighten fittings or repair suction plumbing..
Correction
Fill reservoir.
Tighten fittings or repair suction plumbing.
Drain and flush system. Fill with correct oil.
Correction
Do electrical diagnostics to make sure that voltage is
being applied to S1A and that there is no electrical
fault. See Chapter 5 – Electrical System.
Do cartridge valve service procedure for valve S1A.
Interchange S1A with S1B and check operation.
Replace S1A with a new valve if faulty.
TEST NO. 5. Adjust relief valve if necessary.
Do cartridge valve service procedure for valve R1A.
Replace R1A with a new valve if faulty.
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Reelmaster 6500–D/6700–D