Komatsu PW118MR-11, Operation & Maintenance Manual

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The mechanical device is located on the left side of the pedal
and can adopt the following positions.
(A)
For road transfer (lever pushed forward). This position allows
free movement of the brake pedal and is always used during
road transfers. To return the lever to position (B), press the low-
er part of the lever.
(B)
For work on site (lever raised with the possibility of engage-
ment in the work brake position). In this position, the pedal can
be used as a service brake if pressed at the same time as the
lever or as a work brake if pressed separately to the engage-
ment position (C).
(C)
Work brake position. Engage the work brake to block the ma-
chine when working with the digging attachment. To release the
work brake, press the top of the mechanical lever with the tip of
the foot.
2-PIECE BOOM CONTROL PEDAL
The 2-piece boom control pedal is situated at the left of travel levers.
It controls the extension and folding of the 2-piece boom ac-
cording to the movements indicated.
(a)
Boom folding
(b)
Boom extension
(N)
Boom at rest
SWING LOCK COVER
k k
WARNING
When you do not swing the boom, lock the swing operation with the swing lock cover.
If it is not locked and the control pedal is touched by mistake, this may cause a serious injury or death.
OPERATION EXPLANATION OF COMPONENTS
3-115
WENAM00130