Komatsu WB93R-5, Operation & Maintenance Manual

Page: 106 / 284

INSTRUMENTS AND CONTROLS
104
18/19 - BACKHOE CONTROL LEVERS
(version with mechanical controls)
WARNING
q
Before carrying out any manoeuvre with these levers,
the operator must be seated in working position, that is,
with the seat rotated by 180° with respect to the driving
position and with fastened safety belt; before any ma-
noeuvre, take all the precautions specified in section
"3.13 USING THE MACHINE AS AN EXCAVATOR".
q
The machine is equipped with an acoustic alarm that is
activated if the operator, with the engine running, shifts
the reversing gear lever (1) to position F or R with the
seat rotated in any position different from the correct
driving position.
This is a danger signal, since it is absolutely forbidden
to move the machine while working with the backhoe
equipment or in any case with the seat rotated by 180°
with respect to the regular driving position. Remember
that the operator is allowed to move the machine only
while seated in the correct driving position, with locked
seat and fastened safety belt.
q
Before leaving the work position, lower the equipment
to the ground and do not stop the engine if the safety
lock is not engaged.
q
When travelling on roads, always lock the levers by
means of the safety lock.
The backhoe control levers can be equipped with different
boom, arm and bucket controls according to three different
systems:
1 - ISO PATTERN CONTROLS (Standard)
2 - KOMATSU PATTERN CONTROLS (On request)
3 - X-PATTERN CONTROLS (On request)
No movement can be carried out when the safety lever is shift-
ed upwards (see "3.1.2 BACKHOE LOCKS").
The following diagrams show the basic and combined ma-
noeuvres that can be performed with these three systems.
RKAB3130
19
18
RKAB2780
RKAB2790
1
F
R
N
RKAB3150
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