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Hitachi ZAXIS 120-6 class User Manual

Hitachi ZAXIS 120-6 class
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7-96
MAINTENANCE
ZX200-6, 240-6, 300-6, 330-6 class
IMPORTANT: Loose fan belt may result in insufficient
battery charging, engine overheating, as well as
premature belt wear. A belt that is too tight can
damage both water pump/alternator bearings as well
as the belt.
Inspect
Check fan belt tension by depressing the midpoint between
the fan pulley and the alternator pulley by your thumb
with a depressing force of approximately 98 N (10 kgf ).
Deflection must be within the value illustrated in the right.
Visually check the belt for wear. Replace it if necessary.
Adjust Drive Belt Tension
1. Loosen lock nut (1) at the top of alternator (3), and lock
nut (4) at the bottom of alternator (3).
2. Adjust belt tension by moving alternator (3) forward or
backward by using adjustment bolt (2).
3. Securely tighten lock nuts (1) and (4).
Standard Tightening Torque:
Lock nut (1) : 76 N·m (7.6 kgf·m)
Lock nut (4) : 127 N·m (12.7 kgf·m)
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.
5 to 6 mm
98 N (10 kgf)
Alternator Pulley
Alternator Pulley
Fan Pulley
Fan Pulley
Crank Pulley
Crank Pulley
5 to 6 mm
98 N (10 kgf)
1 2
3
4
M1GR-07-006
M1HM-07-001
M197-07-072
ZX200-6, 240-6 class
ZX300-6, 330-6 class

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Hitachi ZAXIS 120-6 class Specifications

General IconGeneral
BrandHitachi
ModelZAXIS 120-6 class
CategoryExcavators
LanguageEnglish

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