Check Air Conditioner Condenser; Check Air Conditioner Fan Belt - Hitachi ZW140-6 Operator's Manual

Check Air Conditioner Condenser

--- every 6 months
If condenser (1) is covered with dirt and/or insects, air
conditioner 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.

Check Air Conditioner Fan Belt

--- every 6 months
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 ) (22 lbf ).
Deflection : approx. 6 mm (0.24 in)
Belt Tension Adjustment Procedure
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).
MAINTENANCE
7-101
1
MPTC-07-012
2 3
4
M4GB-07-111