Isuzu NHR 4J Series, Workshop Manual

Page: 345 / 406

6D2 – 12 STARTING SYSTEM
MAGNETIC SWITCH
Temporarily connect the solenoid switch between the
clutch and the housing and run the following tests.
Complete each test within three to five seconds.
1. Pull-in test
Connect the battery negative terminal with the solenoid
switch body and the M terminal. When current is applied
to the 50 terminal from the battery positive terminal, the
pinion should flutter.
2. Hold-in test
Disconnect the lead at the M terminal. The pinion should
continue to flutter.
3. Return test
Connect the battery negative terminal to the 50 terminal
and the body. Connect the battery positive terminal to the
M terminal. The pinion will flutter. When the lead to the
50 terminal is disconnected, the pinion should immediately
return to its stationary positions.
4. Current value
• Make connections as shown in the illustration, and
measure the current value.
Standard = 120 A or less
Note:
For a battery, be sure to use one fully charged.
For lead wires, use thick ones since a large amount of
current flows through them.
6D2-12-1.tif
6D2-12-2.tif
6D2-12-3.tif
6D2-12-4.tif