26
Trouble Shooting
MAN1248 (2/26/2018)
TROUBLE SHOOTING
Problem
Possible Cause
Solution
Oil heats (exceeds 200°F)
Overloading mower capacity
Reduce tractor speed and raise
mower cutting height. (Keep aver
-
age motor supply oil pressure
below 1300 psi.)
Oil too heavy or light
Use oil recommended on page 20.
Clean or replace filter.
Restriction in line (unlikely)
Pinch or flatten pressure hose.
Replace as required. Replace sys
-
tem oil filter.
Oil relieving at pressure other than
4000 psi
Pressure check and pressure relief
valve for 4000 psi relief, replace if
defective.
Pump worn
Pump should flow 20 gpm mini
-
mum at 4000 psi. Repair or
replace. Flush oil system and res
-
ervoir of foreign matter.
Motor
worn
Motor slows excessively when
loaded (relief valve not acting).
Repair or replace motor.
