jcb ROBOT 150 - Alternator Belt Adjustment

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Engine (cont'd)
Note: The upper illustration shows the Peugeot engine, the
lower illustration shows the JCB Diesel engine.
Checking the Alternator Belt Tension
1 Park the machine on level ground.
2 Stop the engine.
3 Open the engine compartment rear door.
4 Check the alternator belt tension which should be as
follows:
Peugeot engine - 10 mm (3/8 in) slack at point X.
JCB Diesel engine - 7 mm (0.28 in) slack at point X.
5 If the belt requires adjusting proceed as below Adjusting
the Alternator Belt.
!!
WARNING
Make sure the engine cannot be started. Disconnect the
battery before doing this job.
2-3-3-5
Adjusting the Alternator Belt
1 Loosen nut A and bolt B which secure the alternator.
2 Adjust the fan belt by:
Peugeot engine - turning bolt C to give 10 mm (3/8 in)
slack at point X.
JCB Diesel engine - reposition the alternator to give 7 mm
(0.28 in) slack at point X.
3 Tighten nut A and bolt B.
4 Close the engine compartment rear door.
Fitting a New Alternator Belt
1 Carry out step 1 of Adjusting the Alternator Belt.
2 Turn bolt C or reposition the alternator to slacken the belt
sufficiently to allow removal. Remove the belt.
3 Fit the new belt over the pulleys.
4 Carry out Steps 2 to 4 of Adjusting the Alternator Belt.
Section 3
Routine Maintenance
9803/8500
Section 3
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