Hayter LT324 Operator's Manual page 71

1.71
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.
Hoses wrongly connected.
Cutterhead drive switch wrongly connected.
1.71
REMEDY
Check mechanical and elec-
trical 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.
Check hydraulic circuit and
reconnect as necessary.
Check switch electrical con-
nections.
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