Kubota U35-4, Operator'S Manual

Page: 88 / 120

REGULAR CHECKS AND MAINTENANCE WORK 66
EVERY 200 SERVICE HOURS
Do all 50 and 100 hour servicing at the same time.
B
Adjusting V-belt Tension
To avoid personal injury or death:
A First stop the engine and remove the key.
A
After servicing, make sure to replace the belt
cover in its original position.
C
Checking and adjustment of the air-conditioner
belt tension
1. Press the air-conditioner belt in the middle, with a force
of approx. 58.8 to 68.6 N (6 to 7 kgf). The belt tension
is correct if it deflects about 12 to 15 mm. If otherwise,
loosen nut of the tension pulley and the bolt of the
tension pulley, then adjust tension pulley in the
direction shown by the arrow.
2. Replace the air-conditioner belt if worn out, cracked or
torn.
C Checking and adjustment of the fan belt tension
1. Press the fan belt in the middle, with a force of approx.
58.8 to 68.6 N (6 to 7 kgf). The belt tension is correct
if it deflects about 9 to 11 mm. When adjusting the fan
belt, loosen the lock nuts and turn the tension bolt in
counterclockwise direction.
2. Replace the fan belt if worn out, cracked or torn.
When replacing the fan belt, loosen the tension pulley
(8) and alternator (2).
A
If the engine is run with a loose fan belt, the belt could
slip and cause overheating of the engine. Check fan
belt tension regularly.
A
If the engine is run with a loose fan belt, the belt could
slip and cause insufficient battery charging. Check fan
belt tension regularly.
A Should the fan belt break or jump off, the indicator light
for battery charge will light up. Stop the engine and
remove the key immediately.
(1) Air-conditioner belt
(2) Tension pulley
(3) Air-conditioner compressor
(4) Pulley
(5) Bolt (A) 12 to 15 mm
(B) Tighten
(1) Fan belt
(2) Alternator
(3) Pulley
(4) Fan pulley
(5) Lock nut
(6) Lock nut
(7) Tension bolt
(8) Tension pulley (A) 9 to 11 mm