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Maintenance
Safety, Operation and Maintenance Manual - Aug 2012
5-44
SY115C9/135C/155H Crawler Hydraulic Excavator
Reducing track tension
●
Never loosen the valve (1) quickly or
excessively. The grease under pres-
sure can squirt out of the track tension-
ing cylinder. Carefully loosen the valve
(1) and keep your body and face away
from the valve (1).
●
Never loosen the grease
fi
tting (2).
●
The grease is to be released through
the following steps. If the tension of
track is still tight, contact your Sany
distributor for repair.
●
If gravels or mud falls between the sprock-
et and track link, remove it before you re-
duce track tension.
●
To reduce track tension, slowly turn valve
(1) counterclockwise with a long socket
wrench. The grease will come out of the
grease
fi
tting.
●
Loosening valve (1) only one turn is
enough to reduce track tension.
●
If grease does not come out smoothly,
drive your machine back and forth for a
short distance.
●
When suitable sag of track is achieved,
turn valve (1) clockwise to 78.4 N·m (8
kgf·m).
●
To check if you have got desired track
tension, run the engine at low idle speed,
drive your machine forward (at a distance
that is equivalent to the length of an un-
folded track), and then park the machine.
●
Check track tension again. Readjust the
tension if it is still beyond the standard
range.
1
2
CZ335-1104020
2
CZ335-1104021
CZ335-1104022
WARNING
Fig. 5-29
Fig. 5-30
Fig. 5-31
Содержание SY115C9
Страница 109: ...System Functions Safety Operation and Maintenance Manual Aug 2012 3 4 SY115C9 135C 155H Crawler Hydraulic Excavator ...
Страница 193: ...Operation Safety Operation and Maintenance Manual Sep 2012 4 4 SY115C9 135C 155H Crawler Hydraulic Excavator ...
Страница 263: ...Maintenance Safety Operation and Maintenance Manual Aug 2012 5 4 SY115C9 135C 155H Crawler Hydraulic Excavator ...
Страница 403: ...Specifications SY115C9 135C 155H Crawler Hydraulic Excavator 7 2 Safety Operation and Maintenance Manual Aug 2012 ...