Komatsu PW130ES-6K Operation & Maintenance Manual page 243

MACHINES READY FOR ATTACHMENTS
1. STOP VALVE (1)
This valve stops the flow of the hydraulic oil.
(1) FREE: Hydraulic oil flows.
(2) LOCK: Hydraulic oil stops.
When removing or installing attachments, set this valve to the
LOCK position.
2. SELECTOR VALVE (2)
This switches the flow of the hydraulic oil.
Position (1): When breaker is used
Position (2): When general attachment is used (crusher, etc.)
A To/from main valve
B 1 way flow to tank (breaker)
C To tank
D 2 way flow position (normal)
E From boom piping
3. CONTROL PEDAL (3)
This is used to operate the attachment.
Pedal for two line attachment (with auto deceleration mechanism)
The breaker is operated with right pedal (1).
4. ACCUMULATOR (FOR CONTROL CIRCUIT) (4)
The accumulator is charged with high-pressure nitrogen gas,
and it is extremely dangerous if it is handled mistakenly.
For details of handling, see "HANDLING ACCUMULA-
TOR" on page 246.
This is installed to release any remaining pressure in the attach-
ment circuit after the engine is stopped. Normally, do not touch it.
242
WARNING
OPTIONS, ATTACHMENTS