Toro Reelmaster 335-D Service Manual page 100

Cutting Unit(s) Do Not Lift or Lift Too Slowly
Cause
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Hydraulic oil level too low.
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Low engine RPM.
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Lift arm or cylinder pivots binding.
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Lift cylinder damaged.
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Low counterbalance pressure - TEST NO. 2.
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Low lift pressure - TEST NO. 7.
Troubleshooting
Correction
Fill to proper level.
Adjust engine rpm - use tachometer.
Lubricate bushings. Inspect for damage. Repair or re­
place damaged parts.
Check lift cylinder(s). Repair or replace if necessary.
Adjust counterbalance pressure or replace counter­
balance relief valve if necessary.
Check for restriction in pump intake line or strainer
and repair if necessary.
Check lift cylinder(s) for internal leakage and repair
or replace if necessary.
Clean relief valve in lift control valve and adjust if nec­
essary by adding required shims.
Inspect lift valve for internal leakage or improper op ­
eration and repair or replace if necessary.
Inspect steering/lift pump and priority flow valve for
wear or damage and repair or replace if necessary.
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Reelmaster 335-D