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924916KG251004
TROUBLE SHOOTING
POSSIBLE CAUSE
Cutting cylinder bearing seized.
Incorrect rotation motor fitted.
Diverter valve only partly open.
Motor integral check valve jammed
open.
Cutting cylinder tight on the bottom
blade.
Motor worn.
Lift cylinder seal failure.
Pressure relief valve jammed open or
wrongly set.
Defective control valve.
Mechanical blockage.
Incorrect hose routing or incorrect ori-
entation of hydraulic fittings.
Tightness in pivots.
Mower operated in ‘hold’ position.
Weight transfer set too high.
PROBLEM
REMEDY
One cylinder rotates
slowly.
Cutterhead fails to lift
out of work.
Cutterheads do not
follow ground con-
tours.
Replace as necessary.
Check motor and replace if
necessary.
Free off and lubricate or
replace diverter valve as neces-
sary.
Have check valve cleaned and
checked.
Readjust setting.
Replace motor.
Replace seals.
Have relief valve cleaned and
pressure checked. Consult your
Hayter dealer.
Overhaul control valve.
Remove blockage.
Move cutterheads throughout
extremes of movement and
observe any tightness in the
hoses. Correctly route hoses
and orientate fittings as neces-
sary.
Free off and grease as neces-
sary.
Move position control lever to
‘down/float’ position.
Reduce weight transfer.
TROUBLE SHOOTING Continued.
1.70
1.70