5-124 BA 35203_04 * 3.0 * 35203_04_05_Bedienung.fm
5 Operation
Performing machine travel with the hydraulic trailer brake
Performing machine travel too fast can cause serious accidents!
The trailer brake can overheat on longer downhill stretches with the
brake-inch pedal pressed only halfway through!
Can cause serious injury or death.
► Reduce the travel speed before turning or downhill machine travel.
Press the brake-inch pedal 34 in short intervals as far as it will go to
brake the machine (pump the brakes).
► Take your foot off the accelerator pedal to reduce the engine speed.
► Select the “Turtle” speed range.
When the machine is braked with brake/inching pedal 34, oil pressure is
applied to the hydraulic braking system of the trailer to brake it.
The parking brake has no effect on the trailer braking system.
If the travel speed is reduced with brake-inch pedal 34, oil pressure is
applied to the trailer braking system after about 20% of the pedal travel.
This “advance action” slightly brakes the trailer, and the tractor-trailer
combination is held in a taut line.
Uncoupling the trailer brake hose
1. Park the machine and the trailer on level ground.
2. Apply parking brake.
3. Stop the engine.
4. Switch off the starter and remove the starting key.
5. Secure the trailer with wheel chocks.
6. Apply the trailer parking brake.
7. Disconnect the electric and hydraulic connections from the tractor
vehicle to the trailer.
8. Close the flat connector plugs on the machine and the trailer with the
protective caps provided.
9. Unhitch the trailer – see “Unhitching the trailer” on page 5-112.
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