Baroness LM331, Service Manual, Page: 119 / 165

Adjustment of Belt Tension
Caution
Be sure to stop the engine before adjusting
the belts.
Important
Make sure that the belt has the specified
amount of tension.
Before making sure of its specified tension,
rotate the belt several times.
If the belt becomes slack due to frequent use, it
may jump or slip.
In addition, if it is overtightened, it may wear
prematurely.
If necessary, adjust it, and always check the
belt for appropriate tension.
Fan Belt
Caution
Be sure to stop the engine before adjusting
the belts.
For details on handling the engine, please
refer to the separate Engine Operating
Manual.
Press the middle of the belt with your finger
to check the belt tension.
If the belt is too slack, loosen bolts A and B
(that affix the alternator), then move the
alternator to adjust the tension.
2
5
3
4
1
10 mm(0.39 in)
sdie3r-002
Fan Belt_001
1 Fan belt
2 Blade
3 Alternator
4 Bolt A
5 Bolt B
1.
2.
Hydraulic Pump Drive Belt
Caution
Be sure to stop the engine before adjusting
the belts.
Open the hood.
1
tts2ac-001
Hydraulic Pump Drive Belt_001
1 Hydraulic pump drive belt
Loosen the lock nut, and then turn the nut
to adjust the length of the spring to 35.0
mm (1.38 in).
Secure with the lock nut.
1
A
2
tts2ac-003
Hydraulic Pump Drive Belt_002
1 Lock nut
2 Nut
A 35.0 mm (1.38 in)
1.
2.
3.
Main body
LM331
Main body
Page 6-11
Adjustment