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OPERATION section 4.9
Hydraulic System Warning Horn
SOUNDING HORN INDICATES LOW HYDRAULIC
OIL PRESSURE. SEE DECAL UNDER TOOL BOX
COVER AND OPERATOR’S MANUAL FOR
INSTRUCTIONS.
CAUTION!
This unit is equipped with a warning horn to signal low hydraulic oil pressure.
A hydraulic oil pressure switch monitors the charge pressure of the hydrostatic system, and gives a
warning signal if the charge pressure drops to an unsafe level. Continued operation with low charge pressure
will result in severe damage to the hydraulic pump and motors.
IF HORN SOUNDS, CHECK THE FOLLOWING:
1. Is unit operating under heavy load in “HIGH”(2) range?
Shift both transaxles to “LOW”(1) range and proceed.
2. Low hydraulic oil level or wrong type of oil.
Check oil level and fill with approved hydraulic oil.
3. Dirty or plugged hydraulic filter.
Replace with an approved filter.
4. Check for air leaks in filter base, suction lines or fittings.
Repair or replace damaged parts.
5. If horn signal continues after checking steps 1 to 4, there may be internal damage to the
hydrostatic pump and motors.
Contact dealer for service.
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