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1.67
TROUBLE SHOOTING
PROBLEM
Cutterheads fail to start
up when lowered into
work.
Cylinders
rotate
in
wrong direction.
TROUBLE SHOOTING
Continued.
POSSIBLE CAUSE
Faulty seat sensor switch.
Low oil level.
Diverter valve jammed.
Sheared drive shaft.
Pressure relief valve jammed open or
wrongly set.
Cutting cylinder jammed.
Cutting cylinder tight on bottom blade.
Cutterhead control valve in the 'off'
position caused by:
- Defective control valve.
- Electrical fault.
"Cutter switch in 'Off' position
Hoses wrongly connected.
Cutterhead drive switch wrongly connected.
1.67
REMEDY
Check mechanical and electri-
cal operation of switch.
Fill hydraulic oil reservoir to
correct level.
Free off and lubricate or replace
the diverter valve as necessary.
Check motor and cylinder drive
shafts and replace if necessary.
Have relief valve cleaned and
pressure checked. Consult your
Hayter dealer.
Free off as necessary.
Readjust setting.
Overhaul control
valve.
Have electrical
system checked.
press cutter switch to 'Forward'
Check hydraulic circuit and re-
connect as necessary.
Check switch electrical connec-
tions.
111-0467CR201205
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