Operator's Manual

1.68 1.68
TROUBLE SHOOTING
FAULT POSSIBLE CAUSE REMEDY
After initial satisfactory
operation machine loses
power.
Worn pump or motor Replace as necessary
Low hydraulic oil level Fill hydraulic oil tank to correct level
Incorrect oil viscosity Renew oil in hydraulic tank with hydraulic
oil of correct viscosity grade, refer to
SPECIFICATIONS
Oil lter element blocked Change lter element
Faulty pressure relief valve Have relief valve cleaned and pressure
checked. Consult your authorised dealer
Overheating Check cylinder to bottom blade adjustment.
Reduce work rate i.e. increase height of cut
or reduce forward speed
Incorrect hydraulic oil grade, refer - Problem
‘Hydraulic Oil System Overheating’
Leaks on suction hose Check and tighten ttings. Replace hose if
necessary
Cylinder ‘knocks’ while
rotating
High spot on cylinder or bottom blade due
to contact with foreign object
Remove high spot with a stone and back lap
to restore cutting edges. Serious damage will
require re grinding
Worn cylinder bearings Replace as necessary
One cylinder rotates
slowly
Cutting cylinder bearing seized Replace as necessary
Incorrect rotation motor tted Check motor and replace if necessary
Diverter valve only partly open Free off and lubricate or replace diverter
valve as necessary
Motor integral check valve jammed open Have check valve cleaned and checked
Cutting cylinder tight on the bottom blade Readjust setting
Motor worn Replace motor
Cutterhead fails to lift out
of work
Lift cylinder seal failure Replace seals
Pressure relief valve jammed open or
wrongly set
Have relief valve cleaned and pressure
checked. Consult your authorised dealer
Defective control valve Overhaul control valve
Mechanical blockage Remove blockage
Cutterheads do not follow
ground contours
Incorrect hose routing or incorrect
orientation of hydraulic ttings
Move cutterheads throughout extremes of
movement and observe any tightness in the
hoses. Correctly route hoses and orientate
ttings as necessary
Tightness in pivots Free off and grease as necessary
Mower operated in ‘hold’ position Move position control lever to ‘down/oat’
position
Weight transfer set too high Reduce weight transfer