April 2019
First Edition - Fourth Printing
Part No.
57.0009.0729
GTH-4014 AU, GTH-4018 AU
59
6
5
6a
6b
Operating Instructions
Enabling the parking brake
Use wheel chocks on all wheels to prevent the
vehicle moving before executing any operation.
To re-activate the negative brake:
1. Apply a 20-25 bar pressure to the parking brake
release port (B).
2. Unscrew brake release screws (6) on both sides.
3. Adjust the screws (6) to 19.5±1 mm. Apply the B2
sealant on nuts (5) and tighten them to 45 Nm.
4. Release the pressure at the brakes port (B).
The parking brakes are now re-activated and the
wheels are locked.
Clear the area of any personnel and verify that
parking brake works properly.
Moving a disabled machine
Tow the machine only when no alternative is possible,
since this operation may result in serious damage to
the transmission. When possible, repair the machine
on site.
When the machine must be towed:
1. Disable the parking brake.
2. Set the transmission to neutral (see next page).
3. Select the two-wheel steer.
4. Connect a rigid draw bar to one of the two tie
down points present on the front axle.
5. When possible, start the engine and use the
hydraulic drive and the braking system.
6. Tow the machine for short distances and at low
speed (less than 5 km/h).
Disabling the parking brake
Use wheel chocks on all wheels to prevent
the vehicle moving once the parking brake is
disabled.
To unlock the negative brake of a faulty machine:
1. On both sides unscrew the nuts (5).
2. Screw in the brake release bolts (6a) and (6b),
1/2 turn at a time, in sequence, until the torque
drops off sharply (the wheels are free).
Clear the area of any personnel before remove the
locking from each of the four tires and tow the vehicle
to a suitable location.
19.5±1 mm
A
B
A
B