29
Set the boom stand (fi g. 7‒6, B) and the
wood block (fi g. 7‒6, A) to prop up the fi rst
boom end. Use the wood block that is wider
than the width of fi rst boom end.
Avoid the tie-down ring (fi g. 7‒6, C), and
center the fi rst boom end on the wood
block.
Make sure the stand is stable.
M085K102
(A)
(B)
(C)
fi g. 7‒6
WARNING
Fixate the stand with brace members so
that the stand does not fall over during
operation.
Using the lower controls, lower the boom
to lift up the track 30〜50 mm above the
ground. (fi g. 7‒7)
M085K201
30mm~50mm
fi g. 7‒7
WARNING
Do not lift up the track more than
50mm above the ground. Lifting up the
track more than needed could cause the
machine to become unstable. Death or
serious injury could result.
Push in the emergency stop button to stop
the engine. Turn the key switch to “OFF” and
remove the key.
WARNING
Never leave the key in the key switch
when adjusting the tension of the
tracks. Someone may accidentally start
the engine without realizing it while
adjusting the tension of the tracks. Such
accidents could result in a serious injury.
A grease fi tting (fi g. 7‒8, A) is located on
the right and left sides of the chassis frame.
Supply grease to the grease cylinder through
the grease fi tting to adjust the tension of the
track. Adjust the tension of the track so that
there is 115〜125 mm of slack between the
chassis frame and track link. (fi g. 7‒9)
M085K401
(A)
fi g. 7‒8
M085K320
Track roller
Chassis frame
115mm~125mm
A − A
Track link
A
A
fi g. 7‒9
After adjusting one side, rotate the boom
180 °
and adjust the other side in the same
manner.
NOTICE
It is important to adjust the tension of
left and right tracks equally.
Adjustment Interval
3‒2‒2
Adjust the tension of the tracks at the
following time intervals.
Interval
First time on
new machine
After 10 〜 20 hours
Thereafter
Every 800 hours or 6 months
table 7‒3
NOTICE
Confi rm the number of hours in service
by the hour meter.
