Komatsu F30791, Shop Manual

Page: 153 / 298

ADJUSTMENT OF THE RUBBER PAD AND SAFETY MICROSWITCH
FOR SERVO-CONTROL ENGAGEMENT
20-37
TESTING AND ADJUSTMENTS
ADJUSTMENT OF THE RUBBER PAD AND SAFETY
MICROSWITCH FOR SERVO-CONTROL ENGAGEMENT
H Test conditions:
.
Engine: switched off.
. Working equipment: resting on the ground.
1 - Remove the cover (1).
2 - Loosen the nut (2) and tighten the rubber pad (3) in
the lower plate (4) by several turns.
3 - Lower the servo-control engagement lever until the
pitch point of the roller (5) is roughly 3 mm from the
starting point of the cut-off slot.
4 - Keep this position and bring the rubber pad into con-
tact with the console (6).
5 - Release the servo-control engagement lever and se-
cure the rubber pad (3) with the nut (2).
Adjustment of the microswitch
1 - Disconnect the connectors (7).
2 - Loosen the nut (8) and unscrew the microswitch (9) by
a few turns.
3 - Lower the console (6) into its working position.
4 - Tighten the microswitch (9) until it depresses the
push-button by 3 w 0.5 mm.
5 - Put the console (6) into its 'safe' position and lock the
nut (8).
6 - Connect the connectors (7) and replace the cover (1).
PC20R-8 PC27R-8
RKPA3220
1
RKPB5510
3
4
6
2
RKP06621
3 mm
3
5
2
RKPA3240
8
9
7