SkyTrak 6036 Service Manual - Manual (Page 205)

Section 10. Electrical System
Model 6036 S/N 9B0499 and Before 10-11
starter now cranks, the problem is in the wiring
circuit. If the solenoid fails to “click” the starter
is probably defective.
2. If you hear a “whirring” noise but the engine
does not crank, the starter is spinning but is
not engaging the flywheel. The starter drive or
solenoid that pushes the drive forward to
engage the flywheel may be defective. Miss-
ing teeth on the flywheel can also prevent the
starter from cranking the engine.
3. If the starter only “clicks”, it might indicate
discharged batteries or a loose or corroded
battery cable connection(s). Check battery
charge and condition first.
4. The starter is usually bad if it does nothing at
all (even when jumped), if it cranks very
sluggishly, or if it makes grinding noises while
cranking.
Fig. 10.8 Positive and Negative Battery Cables with End View of Starter Solenoid
Starter Circuit Checks–Test 2
1. If the forklift is equipped with lighting, switch
on the lights. If not, connect a 0-20 Vdc
voltmeter across the battery terminals before
proceeding. Disconnect the wire from the fuel
shut off solenoid at the fuel injection pump.
Turn the ignition switch to START and watch
for the following symptoms:
• The lamps dim (or the voltmeter reading
drops to about 6 volts, and the starter
motor does not crank the engine). Check
the batteries (must be at least half-
charged) and battery lugs (clean and with
a good ground connection).
• If the lamps do not dim (or the voltmeter
reading remains steady at about 12 volts,
and the starter does not crank the engine,
connect voltmeter between the BAT
SUN ELECTRIC VAT-33 TESTER
IGNITION SWITCH TERMINAL
BATTERY
TERMINAL
STARTER MOTOR
TERMINAL
END VIEW OF STARTER SOLENOID
POSITIVE (+)
BATTERY
TERMINAL
NEGATIVE(–)
BATTERY
TERMINAL
BATTERY
STARTER
STARTER
SOLENOID
BATTERY
TERMINAL
LINK
STRAP
WASHER
NUT
MA0911