Park Brake Release Valve; Free Wheel; The Free Wheel Facility - Jacobsen JMP653F Manual

5.15 PARK BRAKE RELEASE VALVE _________________________________________

The Park Brake Release Valve is situated under the footplate, on the left
hand chassis rail. It is used to release the parking brake when the engine
is not running
To release the Parking Brake,
• Unscrew Lock wheel (B) by rotating counter-clockwise.
• Rotate Hand wheel (A) clockwise until resistance is felt.
• Using the Hand pump (C), create sufficient pressure to release the
brakes (50 to 60 strokes should give 90 seconds of brake release).
• When complete rotate Hand wheel (A) counter-clockwise 3 turns and
lock using Lock wheel (B).

5.16 FREE WHEEL _________________________________________________________

To push the machine, disengage the Park Brake,
• Turn screw (A) located on the left hand side of the transmission pump
1 turn counter-clockwise. Set the steering wheel so that the rear
wheels are pointing straight ahead.
• After pushing the machine, return the Park Brake valve to its normal
operating position (see section 6.14) and turn screw (A) on the pump
clockwise until fully closed.
THE FREE WHEEL FACILITY IS FOR RECOVERY PURPOSES ONLY.
DO NOT TOW THE MACHINE FOR MORE THAN A FEW METRES, OR ALLOW THE MACHINE TO FREE
WHEEL DOWN SLOPES EVEN WHEN UNLOADING DOWN RAMPS.
!
WARNING
CONTROLS 5
C
A
A
en-49
B