Hitachi ZAXIS 135US-6 class User Manual

MAINTENANCE
7-129
Inspect belt, check and adjust tension
--- every 250 hours
Visually check the compressor and fan belts for wear.
Check fan belt tension by depressing the midpoint of the
belt with the thumb. Deflection must be shown in the
right figure with a depressing force of approximately 98 N
(10 kgf).
If cool air does not come out, or any other abnormalities are
found in air conditioner system, see your authorized dealer
for inspection.
Adjust Compressor Belt Tension
1. Loosen lock nut (2) of tension pulley (1).
2. Move tension pulley (1) by adjusting bolt (3) under
tension pulley (1) until tension is correct.
3. Securely tighten bolt (2) of tension pulley (1).
4. After that tighten bolt (3).
IMPORTANT: When a new belt is installed, be sure to re-
adjust the tension after operating the engine for 3 to 5
minutes at slow idle speed to be sure that the new belt
is seated correctly.
ZX225USLC-6, 345USLC-6
Air Compressor
Pulley
Fan Pulley
Fan Pulley
Alternator Pulley
Crank Pulley
Crank Pulley
17 to 21 mm
98 N (10 kgf)
10 to 14 mm
98 N
M1GR-07-007
Compressor Pulley
Tension Pulley
ZX135US-6
14.6 to 16.4 mm
98 N (10 kgf)
M1U1-07-086
Air Compressor Pulley
3
2
1
M1G6-07-013
ZX135US-6
ZX225USLC-6, 345USLC-6
M1U4-07-041
Air Compressor Pulley
3
2
1

Hitachi ZAXIS 135US-6 class Specifications

General

Brand	Hitachi
Model	ZAXIS 135US-6 class
Category	Excavators
Language	English