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Hitachi ZW310 - Check Air Conditioner Condenser; Check Air Conditioner Fan Belt

Hitachi ZW310
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
7-93
M4GB-07-087
M4GB-07-110
ZW220, ZW250
ZW310
M4GB-07-111

If condenser (1) is covered with dirt and/or insects, air condi
-
tioner cooling performance will be reduced. Remove dirt or
stain from fins of condenser (1) using tap water. In case the
condenser has been severely contaminated, use a soft brush.
Do not use a hard brush, which may damage the fins. Clean the
condenser from the top side of the engine hood on ZW310.

Check the belt for abnormal deflection and damage. Check fan
belt tension by depressing the midpoint shown with
mark in
the illustration with the thumb. Deflection must be as follows
with a depression force of approximately 98 N (10 kgf ).
ZW180: approx. 7 mm
ZW220 and ZW250: approx. 6 mm
ZW310: approx. 7 mm

1. Loosen lock nut (2) of tension pulley (4).
2. Move tension pulley (4) to adjust belt tension by turning
belt tension adjustment bolt (3).
3. Securely tighten nut (2).
Deflection
4
5

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