(1) V-belt
1. Press
the V-belt (5) down in the middle, with the
following force.
Pressing force (B) Approx. 50 N to 60 N
The belt tension is correct if it deflects the following
length.
Belt deflection (A) About 4.0 mm to 5.0 mm
2. If
the belt tension is not correct, loosen bolt (1), (2),
and (3) and shift the alternator (4) in the direction
shown by the arrow in the following figure.
(1) Bolt
(2)
Bolt
(3) Adjuster bolt
(4) Alternator
(5) V-belt
(A) Belt deflection
(B) Pressing force
3. After
adjustment of the V-belt tension, tighten all the
bolts.
4. Replace the V-belt if worn out, cracked, or torn.
3.1 Checking and adjusting the air-
conditioner belt tension [Closed cab
model]
1. Press
the air-conditioner belt down in the middle,
with the following force.
Pressing force Approx. 50 N to 60 N
The belt tension is correct if it deflects the following
length.
Belt deflection (A) About 7 mm to 9 mm
2. If the belt tension is not correct, loosen bolt of the
tension pulley and shift the tension pulley in the
direction shown by the arrow in the following figure.
(1) Air-conditioner belt
(2)
Tension pulley
(3) Air-conditioner compressor
(4) Pulley
(5) Bolt
(A) Belt deflection
(B) Press
3. Replace
the air-conditioner belt if worn out,
cracked, or torn.
4. Cleaning inside of the main frame
If mud, leaves, or any debris are accumulated inside of
the
main frame, it may cause damage on parts of the
main frame.
1. Open the plates of the bottom of the main frame.
(See Discharging mud from the main frame on page
86 for detail procedure)
2. Remove mud, leaves, and any debris from the
inside of the main frame.
EVERY 250 SERVICE HOURS  MAINTENANCE