Replacing Alternator Belt - Komatsu WA250-6 Shop Manual

SEN03836-01

Replacing alternator belt

a The auto-tensioner is provided for the alterna-
tor belt. Thus, testing and adjustment of the
belt is usually no necessary.
a Remove air conditioner compressor belt before
replacing the alternator belt.
k
Stop the machine on a flat ground and
lower the work equipment to the ground.
1. Open the engine left side cover.
2. Apply wrench (a) to part A (width across flats T
12.7 mm) of tensioner assembly (1) and turn it
in the arrow direction to decrease the tension
of fan belt (2).
k
Make sure that the wrench (a) is
secured at portion (A) before rotating
it. (The spring of tensioner assembly
(1) is strong. If the wrench is loosely
inserted, the wrench may accidentally
come off while being rotated and it is
extremely dangerous.)
k
After removing alternator belt (2), return
tensioner assembly (1) slowly with care.
k
Be careful not to get your fingers
caught between the pulley and alterna-
tor belt (2) during work.
3. Replace alternator belt (2).
Check each pulley for breakage and crack.
q
36
30-110
1
110 Testing and adjusting, Part 1
Replacing alternator belt
WA250, 250PZ-6