Every 200 Service Hours; Adjusting V-Belt Tension - Kubota KX057-4 Operator's Manual

74 REGULAR CHECKS AND MAINTENANCE WORK

EVERY 200 SERVICE HOURS

Do all 50 and 100 hour servicing at the same time.
BAdjusting V-belt Tension
To avoid personal injury:
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 down 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 7 to 9 mm. If
otherwise, loosen bolt of the tension pulley and shift
the tension pulley in the direction shown by the arrow.
2. Replace the air-conditioner belt if worn out, cracked or
torn.
(1) Air-conditioner belt
(2) Tension pulley
(3) Air-conditioner compressor
(4) Pulley
(5) Bolt
A If the engine is run with a loose air-conditioner belt, the
belt could slip and cause insufficient battery charging.
Check air-conditioner belt tension regularly.
A Should the air-conditioner belt break or jump off, the
indicator light for battery charge will light up. Stop the
engine and remove the key immediately.
(A) 7 to 9 mm
(B) Tighten
C Checking and adjustment of the fan belt tension
1. Press the fan belt down in the middle, with a force of
approx. 68.6 N (7 kgf). The belt tension is correct if it
deflects about 12 to 15 mm. If otherwise, loosen bolt
and shift the alternator in the direction shown by the
arrow.
2. Replace the fan belt if worn out, cracked or torn.
(1) Fan belt
(2) Alternator
(3) Pulley
(4) Fan pulley
(5) Bolt and nut
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) 12 to 15 mm
(B) Tighten