Replacing Alternator Belt - Komatsu PC200-8M0 Shop Manual

SEN06127-00

Replacing alternator belt

a The auto-tensioner is provided for the fan belt.
Thus, testing and adjustment of the belt is usu-
ally not necessary.
a Disconnect air conditioner compressor belt
before replacing the fan belt.
k
Stop the machine on a level ground and
lower the work equipment to the ground.
1. Open engine hood and remove fan belt cover
(1).
2. Insert a wrench to the portion (A) (width across
flats T 12.7 mm) of the tensioner assembly (2),
and rotate it to the opposite to the winding-up
direction to decrease the fan belt (3) tension.
k
Make sure that the wrench is secured
at the portion (A) of the tensioner
assembly (2) before rotating it. (The
spring of the tensioner assembly (2) is
s t r o n g . I f t h e w r e n c h i s l o o s e l y
inserted, the wrench may accidentally
come off while being rotated and it is
extremely dangerous.)
k
After removing the fan belt (3), return
the tensioner assembly (2) slowly with
care.
k
Be careful not to get your fingers
caught between the pulley and fan belt
(3) during work.
30
30-101
1 3. Replace the fan belt (3).
q Check each pulley for breakage and
crack.
101 Testing and adjusting, Part 1

Replacing alternator belt

PC200, 200LC, 220, 220LC-8M0