Cessna 188 Series Service Manual page 180

MODEL 188 & T188 SERIES SERVICE MANUAL
11-71. STARTING SYSTEM. When the solenoid is'activated, its contacts close and
electrical current energizes the motor. Initial rota-
11-72. DESCRIPTION. The automatically-engaged tion of the motor engages the starter through an over-
starting system employs an electrical starter motor running clutch in the starter adapter, which incorpo-
mounted to a 90-degree adapter. A starter solenoid rates worm reduction gears. The starter motor is
is activated by a push-button on the instrument panel. located just aft of the right rear cylinder.
11-73. TROUBLE SHOOTING.
TROUBLE
PROBABLE CAUSE REMEDY
STARTER WILL NOT OPERATE. Defective master switch or
Install new switch or wires.
circuit.
Defective starter switch or Install new switch or wires.
switch circuit.
Defective starter motor.
Repair or replace starter motor.
STARTER MOTOR RUNS, BUT Defective overrunning clutch Install new starter adapter.
DOES NOT TURN CRANK- or drive.
SHAFT.
Starter motor shaft broken. Install new starter motor.
STARTER MOTOR DRAGS. Low battery. Charge or install new battery.
Starter switch or relay contacts Install serviceable unit.
burned or dirty.
Defective starter motor Install new cable.
power cable.
Loose or dirty connections. Remove, clean and tighten all
terminal connections.
Defective starter motor. Check starter motor brushes,
brush spring tension, thrown
solder on brush cover. Repair
or install new starter motor.
Dirty or worn commutator. Clean and turn commutator.
STARTER EXCESSIVELY Worn starter pinion. Replace starter drive.
NOISY.
Worn or broken teeth Replace crankshaft gear.
on crankshaft gears.
11-24