Komatsu PW130ES-6K Operation & Maintenance Manual page 76

OPERATION EXPLANATION OF COMPONENTS
the swing brake electrical system (swing brake system error). The
abnormality must be repaired immediately.
16. PARK BRAKE SWITCH
This switch is used to apply and release park brake.
OFF: Park brake released (warning light not illuminated)
ON: Park brake applied (warning light illuminated)
Note1: When moving off from a standstill up an incline it will be
necessary to depress the travel pedal slightly before releasing
park brake to build pressure to the travel hydraulics and prevent
initial rearwards movement
16. CONT.
Note 2: A warning buzzer will sound if the travel pedal is
depressed and the park brake is applied.
Do not apply the park brake while the machine is in motion or the
park brake may be damaged.
17. SUSPENSION LOCK SWITCH
Release the front axle suspension lock, using switch).
Position (1): Front axle suspension travels freely.
Position (2): Front axle suspension is in 'auto' mode i.e. when
travel pedal is depressed, front axle suspension travels freely and
when travel pedal is not depressed, front axle suspension is
locked.
Position (3): Front axle is locked.
The lamp within the switch will illuminate when the front axle is
locked, and will not be illuminated when the front axle is unlocked.
WARNING
Take care when using undercarriage attachments to stabilize
the machine, and suspension lock simultaneously, as locked
front axle may suddenly become free.
When machine is fitted with blade and outriggers it is necessary
to Position outrigger switch (20) in its central (R.H. Attachment)
Position in order to disengage suspension lock during dozer oper-
ations.
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