Komatsu 170-3 Series User Manual

12-18
170-3 SERIES
TESTING AND ADJUSTING
REPLACING AND ADJUSTING
FAN BELT
SPRING TYPE
1. Replacing
1) Loosen locknut (1), then return adjustment
screw (2) fully until it reaches bracket (3).
2) Insert a 50 cm bar
➀ into the hole (∅18 mm)
of the tension pulley lever, then pull strongly
and hold in position.
3) Remove the old belt and replace it with a
new belt.
2. Adjusting
1) Screw in until the tip of adjustment screw (2)
contacts tension pulley lever (4).
2) Screw in a further 3 turns, then secure in
position with locknut (1).
Locknut :
289 ± 20 Nm {29.5 ± 2 kgm}
★ If the fan belt starts to whine during opera-
tion, or if a clearance is formed between the
tension pulley lever and the adjustment
screw, adjust in the same way as above.
RIGID TYPE
1. Replacing
1) Loosen 3 mounting bolts (2) of tension pulley
(1).
2) Loosen locknut (3), then loosen adjustment
screw (4).
3) Remove the old belt and replace it with a
new belt.
➀
REPLACING AND ADJUSTING FAN BELT

Komatsu 170-3 Series Specifications

General

Brand	Komatsu
Model	170-3 Series
Category	Engine
Language	English