Baroness LM331 - Maintenance

Adjustment of Belt Tension
Warning
Be sure to stop the engine before adjusting
the belts.
Important
Before making sure of belt 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
Press the middle of the belt with your finger
to check the belt tension.
The belt tension is appropriate when the
belt slacks by approximately 10.0 mm (0.39
in) when you apply a force of 98 N (10 kgf)
to the belt at the middle point between the
pulleys.
If the belt tension is incorrect, loosen bolt A
and bolt B (securing the alternator), and
then move the alternator to adjust the
tension.
2
5
3
4
1
A
mzdn8n-004
Fan Belt_001
1
Fan Belt
2 Blade
3 Alternator
4 Bolt A
5 Bolt B
A 10 mm (0.39 in)
1.
2.
Hydraulic Pump Drive Belt
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 30.0 - 35.0 mm (1.18 - 1.38 in)
1.
2.
3.
LM331
Maintenance
Page 6-10
Adjustment and Replacement