Komatsu Utility 97SF11205, Operation & Maintenance Manual

Page: 211 / 296

MAINTENANCE PLAN
209
4.7.1.j CHECKING AND ADJUSTING THE
BRAKE PEDAL STROKE
4.7.1.k ADJUSTING THE AUTOMATIC RETURN-
TO-DIG DEVICE OF THE FRONT BUCKET
(if installed)
This check must be carried out when operating on the braking
unit in order to eliminate any trouble.
To check and adjust the brake pedal stroke, proceed as follows:
1 - Insert the connection pin (1) in order to couple the pedals.
2 - By acting on the end-of-stroke rubber pads (2), position the
pedals in correspondence with measure “A” - 313 mm; lock
the pads in this position. (Use a 13 mm spanner).
3 - Lower the pedals to the measure “A”-303 mm and adjust the
brake pump rods (3) until they touch the pumping pistons;
lock them in this position.
(Use a 22 mm spanner).
RWA13980
1
A
RWA16470
2
3
RWA38040
The device for the automatic return of the front bucket to the dig-
ging position automatically brings the front bucket to the loading
position when it is lowered to the ground. The sensor is posi-
tioned on the right dumping cylinder and determines the horizon-
tal position of the bucket with respect to the ground after the
bucket dumping control has reached the end of stroke and the
electromagnet of the distributor rod has been operated (see
“3.3.5 pos. 5 LOADER CONTROL LEVER”).
The sensor must be positioned at a distance of 2-4 mm (0.078-
0.157 inches) from the sliding rod.
2-4 mm (0.078-0.157 in)
RWA34420