Doosan GV158TIC, Руководство по эксплуатации и техническому обслуживанию

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Maintenance of major parts - 137 -
5.5. V-Belts
●
The tension of the belts should be checked after every 2,000 hours of operation.
5.5.1. Change the belts if necessary
●
If in the case of a multiple belt drive, wear or differing tensions are found, always replace the com-
plete set of belts.
5.5.2. Checking condition
●
Check belts for cracks, oil, overheating and wear.
5.5.3. Testing by hand
●
By the finger-pressure the belt is pressed
by 10 ~ 15 mm between the pulleys in
normal condition. (Pressed midway
between the belt pulleys)
●
A more precise check of the V-belt ten-
sion is possible only by using a V-belt
tension tester.
5.5.4. Measuring tension
a) Lower indicator arm (1) into the scale.
●
Apply tester to belt at a point midway
between two pulleys so that edge of
contact surface (2) is flush with the V-
belt.
●
Slowly depress pad (3) until the spring
can be heard to disengage. This will
cause the indicator to move upwards.
●
If pressure is maintained after the
spring has disengaged a false reading
will be obtained!
EFM2002I
(1)
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