MacDon TR41 S, Руководство оператора, Страница: 28 / 80

General structural features
26
braking force compensation between the axles. The braking forces between
the wheels are also compensated by a rocker arm at both axles.
5.8.2 Parking brake
Manually operated mechanical braking system acting on both axles, which is
able to compensate the forces between the two wheel-brakes.
The parking brake works as follows:
1. Firmly pull the parking brake lever beyond the dead center point (min. 3
teeth)
2. The parking brake lever will be re-tensioned automatically by the gas
spring if the trailer tends to roll backwards. Compressing the drawbar with
the towing vehicle makes operation of the parking brake lever easier. In
this case, the wheel brake is normally pushed into the automatic reversing
mechanism and the parking brake lever can be pulled up to the end
position (12th teeth).
3. The towing vehicle must be connected to the parking brake lever by
means of a breakaway chain/cable. In the event of the trailer breaking
away from the towing vehicle, the trailer is stopped by the parking brake
lever in conjunction with the breakaway chain/cable.
5.8.3 Automatic reversing system
The special brake shoe support arrangement in the wheel brake terminates
the braking effect when reversing and thereby ensures the vehicle can
effortlessly back up at any time, even uphill. This design eliminates the need
for a separate locking arm to secure the vehicle. Normal brake operation is
restored immediately when the vehicle moves forward. The overrun device
connected to the reversing system is equipped with a gas pressure-assisted
hydraulic shock absorber maximising control in both driving and braking
conditions.
The individual components, namely the wheel brake, the transmission and the
overrun mechanism are designed as a system to ensure efficient performance.