Komatsu WB93R-5, Operation & Maintenance Manual

Page: 108 / 284

INSTRUMENTS AND CONTROLS
106
To use the levers correctly, proceed as follows:
1 - With the machine at rest and the engine off, seat correctly
and rotate the seat by 180° with respect to the driving po-
sition.
2 - Adjust both joysticks until they reach the desired operat-
ing position (see "3.3.6.3 pos. 2 JOYSTICK LOCKING
LEVERS (only for the version with servo-assisted back-
hoe)").
The position of the joysticks during work can be adjusted
by means of the respective knobs positioned on the cab
floor (see "3.3.6.3 pos. 4 JOYSTICK STROKE ADJUST-
ING KNOB (only for the version with servo-assisted back-
hoe)").
3 - Adjust the height of the arm supports (B) by means of the
adjusting knobs, until finding the position that is most suit-
able to your physical structure (see "3.3.6.3 pos. 3 ARM
SUPPORT ADJUSTING KNOB (only for the version with
servo-assisted backhoe)").
4 - Once the correct operating position of both joysticks has
been found, fasten the safety belt and start the machine
(see "3.6.2 STARTING THE ENGINE").
Press the button (A) (LED off) to release the servo con-
trols and start work.
5 - At the end of work lower the equipment to the ground and
lock the controls again with button (A) (LED on).
6 - Before rotating the seat to the driving position, shift the
joysticks in vertical position, paying attention to the safety
distance from the rear window. If the end of stroke of the
joysticks needs adjusting, use the screws positioned on
the front part of the same (see "3.3.6.3 pos. 4 JOYSTICK
STROKE ADJUSTING KNOB (only for the version with
servo-assisted backhoe)").
The control lever (18) is positioned to the operator’s left and
controls the arm and the swing, while the control lever (19) po-
sitioned to the operator’s right controls the boom and the buck-
et.
On request, the machine can be equipped with two different
control patterns at the same time, more precisely:
1 - ISO PATTERN CONTROLS (Standard)
2 - KOMATSU PATTERN CONTROLS (Optional)
The choice of the control pattern is up to the operator; for the
selection of the pattern desired, see paragraph " 20 - PAT-
TERN CHANGE CONTROL LEVER (if provided and only for
the version with servo-assisted backhoe)".
The patterns illustrated below show the basic manoeuvres and
the combined manoeuvres that can be carried out with the two
systems.
RKA15100
18
B
RKA15110
19
B
RKAB4450
A
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