Komatsu PC14R-3, Operation & Maintence Manual

Page: 234 / 246

MACHINE CONFIGURATION FOR THE INSTALLATION OF ATTACHMENTS
232
WEAM009300
1. Quick couplers
The quick couplers (1) are used to connect the pipes to the ends
of the equipment.
When removing the equipment, protect the quick couplers with
the plugs (A).
When installing the equipment, remove the plugs (A) and carefully
clean the quick couplers before connecting them to the pipes.
2. Selection valve
The selection valve (2) regulates the flow of the hydraulic oil and
has two positions.
q
Position (a): for applications requiring the use of the generic
equipment. Spool (A) completely rotated counterclockwise.
q
Position (b): for applications requiring the use of the hydraulic
breaker. Spool (A) completely rotated clockwise.
Width across face of square portion of spool (A):
9 mm
3. Optional equipment control pedal
The pedal (3) controls oil delivery to and return from the optional
equipment.
q
Upper part of the pedal (A) pressed:
The oil flows to the right side of the arm (hydraulic tank side).
q
Lower part of the pedal pressed (B):
The oil flows to the left side of the arm (operator seat side).
4. Pedal locking device
(for the optional equipment control pedal)
WARNING
q
Always lock the optional equipment control pedal when the
use of this control is not required, during travel and when
parking the machine. If the control pedal is inadvertently
pressed, this may cause serious accidents.
The safety device (4) is used to lock the optional equipment
control pedal.
RKA16500
A
B
RKA10550