Starter Motor Inspection - Honda GX270H Manual

62Z7B000.book 12 ページ ２０１２年９月２７日 木曜日 午前１０時２１分
dummyhead dummyhead
STARTING SYSTEM

STARTER MOTOR INSPECTION

PERFORMANCE TEST
Measure starter performance while cranking the engine.
STARTER MOTOR PERFORMANCE:
UNDER LOAD:
CRANKING VOLTAGE:
CRANKING CURRENT:
ENGINE CRANKING SPEED: 2,300 min
NO LOAD:
CRANKING VOLTAGE:
CRANKING CURRENT:
• To get accurate results, the test must be conducted
in the normal ambient temperature.
• Battery: 55B24 (12 V 36 AH/5 HR)
• Battery cable: 15 sq. x 1.5 m (4.9 ft.) each for battery
positive cable and battery negative cable.
If the measurement is out of specification, disassemble
and inspect the starter motor.
STARTER SOLENOID
Remove the starter solenoid wire [1] from the starter
solenoid [2].
Connect the positive (+) lead of a 12 V battery to the
solenoid terminal and the negative (–) lead to the
solenoid body. Measure the resistance between the
battery and starter motor terminals as shown.
Continuity should exist when the battery is connected
and not exist when the battery is disconnected.
BRUSH LENGTH
Measure the brush length.
If the negative brush length is less than the service limit,
replace the brush and brush holder.
If the positive brush length is less than the service limit,
replace the center bracket and brush holder.
STANDARD:
GX270H: 7.0 mm (0.28 in)
GX390H1: 10.5 mm (0.41 in)
SERVICE LIMIT:
GX270H: 3.5 mm (0.14 in)
GX390H1: 4.0 mm (0.16 in)
10-12
9.9 V
103 A
-1
(rpm) min.
11.5 V
31 A max.
[2]
[1]