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Komatsu WA380-8 Service Manual

Komatsu WA380-8
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METHOD FOR CHECKING AIR CONDITIONER COMPRESSOR BELT
1.
Open the engine side cover on the left side of the ma-
chine.
2.
Check air conditioner compressor belt (1).
Press the middle point between air conditioner compressor
pulley
(2)
and
crankshaft pulley (3) with your thumb (ap-
proximately 98 N {10 kg}).
If deflection (a) is 11 to 15 mm, the belt tension is normal.
If the deflection is out of the standard range, adjust it into
the standard range.
When you use a belt tension gauge, the tension is normal
if it is in the range of 353 to 530 N {36 to 54 kg}.
METHOD FOR TESTING WHEN AIR CONDITIONER COMPRESSOR BELT IS RE-
PLACED
Press the middle
point between the compressor pulley and crankshaft pulley with your thumb (approximately
98 N {10 kg}  ).
The standard deflection is 8 to 11.5 mm.
When you use a belt tension gauge, the tension is normal if it is in the range of 530 to 745 N {54 to 76 kg} .
REMARK
When the belt
is replaced with a new one, the above value is employed as the initial tension since a stronger
tension is required.
METHOD FOR ADJUSTING AIR CONDITIONER COMPRESSOR BELT
1.
Open the engine side cover on the right side of the ma-
chine.
2.
Loosen bolts (1) and (2).
REMARK
When the bolts
(1) and (2) are loosened, bracket (4) to
which compressor (3) is installed can move, using the
mounting position of bolt (2) as a fulcrum.
MAINTENANCE PROCEDURE MAINTENANCE
4-46

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Komatsu WA380-8 Specifications

General IconGeneral
BrandKomatsu
ModelWA380-8
CategoryCompact Loader
LanguageEnglish

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