jcb Groundhog 6x4, Руководство по обслуживанию

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Section C - Electrics
Service Procedures
Alternator
C-21 C-21
9803/9390-2
Fig 5.
Check 2
Note: The following checks should be made using an
analogue (moving pointer) type meter.
1 Stop the engine and turn the starter switch to OFF.
2 Withdraw the alternator plug and connect the test
meter between the large terminals and 'earth'. With
the meter set to measure 12V DC, the meter should
show battery voltage. If the reading is zero, check the
cables for continuity, particularly at the starter
terminals.
Fig 6.
If the voltage is correct, check the alternator.
K
Alternator Charging Test (
T
C-21) .
Alternator Charging Test
Fig 7.
1 Ensure that all battery and alternator connections are
in place, secure and making good metal - to - metal
contact, especially the 'earth' connections to chassis
and engine.
2 Make sure that the alternator drive belt tension is
correctly adjusted.
3 If the battery is in a fully charged condition, switch on
the working lights for 3 minutes before commencing
the test. Alternatively, operate the starter for a few
moments with the engine shut off solenoid (ESOS)
fuse removed (See
Fuse Identification ).
4 Install a 100 amp open - type shunt between the
battery positive lead and the battery positive terminal.
5 Connect a multimeter positive lead to machine side of
the shunt and negative lead to battery side of the
shunt.
6 Connect the leads to the meter and set the meter to
the relevant range as follows.