Komatsu Utility F50003, Operation & Maintenance Manual

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FRONT EQUIPMENT QUICK COUPLING DEVICES
246
6.2.2 HYDRAULIC QUICK COUPLING
FOR STANDARD BUCKET
The operations to be performed are those described in the
previous paragraph (see “6.2.1 MANUAL QUICK COU-
PLING”), except for the backward movement and the engage-
ment of the coupling pins, which are obtained by means of the
push buttons (9) and (10) located on the lever (3).
(See "3.3.6 pos. 12 - 4 IN1 BUCKET OPENING PUSH BUT-
TON" and pos. 13 - 4 IN1 BUCKET FOLDING PUSH BUT-
TON").
6.2.3 HYDRAULIC QUICK COUPLING
FOR 4in1 BUCKET AND OPTIONAL
EQUIPMENT WITH UNIDIREC-
TIONAL OIL FLOW
WARNING
q
Before carrying out any operation on the hydraulic cir-
cuit, stop the engine and eliminate the residual pressure
by proceeding as follows:
1 - Turn the ignition key to position « ».
2 - Press the servo control locking button and make
sure that the LED is off (release position) (see "3.3.2
pos. 12 - SERVO CONTROL LOCKING BUTTON").
3 - Operate the loader arm control lever and the 4in1
bucket opening and folding buttons more than once.
4 - Turn the ignition key to position «O».
q
If any oil has been spilled, wipe it up immediately, in or-
der to prevent the surface from getting slippery.
The 4 in1 bucket and the hydraulic equipment that can be in-
stalled on the machine must be provided with quick coupling
devices.
In this case, the backward movement and the engagement of
the coupling pins are obtained by connecting the quick cou-
plings (11-12) of the 4in1 bucket (or other equipment) delivery
and drain pipes to the quick coupling unit, with the engine at
rest.
RKAB4590
3
10
9
RKA14310
11
12
RWA02000
RWA01960