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TROUBLESHOOTING
• Bypass loose. Tighten the bypass.
• Inlet leak. Check all connections and
hoses for leaks.
• Clogged/damaged hydraulic filter. Replace hydraulic filter.
• Defective hydraulic pump. Replace pump.
Unit operating hot. • Build-up of of grass cuttings. Clean the exterior of the mower,
especially the cooler.
• Hydraulic cooler clogged or Replace hydraulic cooler.
damaged.
• Oil level low or oil contaminated. Fill to proper level or change oil.
• Excessive loading (long grass). Raise the cutting height, drive
more slowly.
• Air trapped in the hydraulic system. Aerate the system.
• Inlet leak. Check all connections and
hoses for leaks.
External oil leak • Loose connection/seal. Tighten, clean, test run.
• Damaged seal or gasket. Replace seal, test run.
Replace seal and gasket.
• Hose leaking but oil reaching Replace hose, seal and gasket.
the pump.