Operation Description
40
Sequence
No.
Fault Fault Reasons Troubleshooting
lift position
the
distributor
emits a
loud noise.
the lifter case to open the safety
valve.
the force/position adjusting rod to
make the lift height lower that the
original position.
6
Hydraulic
lifter has
no
hydraulic
output or
weak
output.
(1) The oil inlet pipe of the oil cylinder
is cut off.
(2) Front cone and conical hole of
speed lowering control valve have
not been sealed tightly.
(3) Lifter is in the neutral lifting
position.
(1) Fasten the control handle to lower
the speed.
(2) Replace the valve.
(3) Push the lifter control handle to the
lowering position to lower the
outer lifting arm to the lowest
position. Shut off the inlet oil line
to the oil tank, then put the
operation handle in the lift position.
2 .16.2 Electrical System Fault and Troubleshooting
2.16.2.1
Starter Faults and Troubleshooting
Table 2-11 Starter Faults and Troubleshooting
Sequence
No,
Fault Fault Reasons Troubleshooting
1.
The starter
doesn’t work.
(1) Battery capacity is insufficient.
(2) Battery pole is dirty or the cable is
loose.
(3) Cable connector is loose.
(4) The wires in control circuits such as
the start switch are broken.
(5) No contact between the carbon brush.
(6) Circuit broken or a short in the starter.
(1) Charge the battery according to the
specifications.
(2) Remove dirt and tighten the
connecting parts.
(3) Tighten connectors.
(4) Check circuit and connection.
(5) Replace starter.
(6) Replace starter.
2 Starter failure.
(1) Battery capacity is insufficient.
(2) Poor wire connections.
(3) Rectifier surface burnt or
contaminated by oil.
(4) The carbon brush is worn or the spring
pressure is insufficient.
(5) Bad contact with rectifier.
(6) Main contact of the solenoid switch is
burned, resulting in a poor connection.
(7) Bearing severely worn. Armature rubs
against the case.
(1) Charge the battery.
(2) Tighten the wire connections.
(3) Replace commutator or remove the
oil stains.
(4) Replace
(5) Replace.
(6) Replace.
(7) Replace
3
After the engine
has been started,
it continues to
run, but emits a
sharp noise.
(1) Circuit breaker copper contact disc and
the two contacts on the starter are
stuck.
(2) Starter lever disengaged or loose bolts.
(3) Lever return spring is broken or loose.
(4) Starter motor armature shaft is broken
or bent.
(5) Tooth surface snapped or locked.
(6) Contact(s) of the starting relay are
stuck.
(7) Igniting switch doesn’t return
automatically after starting.
(1) Replaces tarter
(2) Readjust or replace.
(3) Replace starter
(4) Replace starter
(5) Replace starter
(6) Replace starting relay.
(7) Replace igniting switch.
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