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.
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. 75 WARNING WARNING