Hitachi ZAXIS 30U-5N User Manual

MAINTENANCE
7-65
Check and Adjust Fan Belt Tension
--- every 100 hours (first time after 50 hours)
IMPORTANT: Loose fan belt may result in insufficient
battery charging, engine overheating, as well as
premature belt wear. Belts that are too tight, however,
can damage both bearings and belts.
Inspect
Checkfanbelttensionbydepressingthemidpointbetween
fan pulley (1) and alternator pulley (2) by your thumb with
adepressingforceofapproximately98N(10kgf,22lbf).
Deflection:7to9mm
Visuallycheckthebeltforwear.Replaceifnecessary.
Adjust Fan Belt Tension
ZX30U-5N,35U-5N
1. Removebolts(4)fromtherightsideoftheseat.Remove
covers(3)toopenthecheckingport.
2. Loosenadjustingbolt(6)andmountingbolt(7)of
alternator (5).
3. Adjustbelttensionbymovingalternator(5)forwardor
backward.
4. Securelytightenbolts(6)and(7).
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.
2
1
98N(10kgf)
7to9mm
43
5
6
5
7
M589-07-014
MADB-07-030
MADB-07-032
MADB-07-031

Hitachi ZAXIS 30U-5N Specifications

General

Brand	Hitachi
Model	ZAXIS 30U-5N
Category	Excavators
Language	English