4.4. Trailer
1. Coupling the tow ball coupling:
1. Move the ball coupling over the trailer device.
2. Open and hold the ball coupling.
3. Turn the jockey wheel handle clockwise until the ball coupling locks in place.
4. Continue to turn the jockey wheel handle until the wheel is fully retracted.
The support shoe must be firmly engaged in the recess in the outer tube.
5. Open the clamp.
6. Pull the jockey wheel upwards as far as possible.
7. Tighten the clamp.
8. Connect the power cable to the towing vehicle.
9. Route the breakaway cable through the breakaway cable guide ring and loop it around the ball plate (see
photos - see also the applicable country regulations for potential possibilities through coupling!).
Caution at option 2: Do not use with removable coupling! If the coupling is not correctly locked in position,
there is a risk of losing the coupling and the trailer.
Caution at option 4: only permissible with DIN 5299 snap hooks - min. 70 (fire brigade snap hooks).
10. Release the hand-brake lever.
11. Remove wheel blocks.
Note: The ball coupling consists of safety indicator 1 (these checks if the coupling is secured, the green cylinder
is visible when installed correctly) and wear-indicator 2 (these controls the wear limit of the ball coupling, at red
color area replace immediately, the ball joint can hang out. The green color is within acceptable range).
2. Coupling the towing eye:
1. Couple the towing eye in the coupling jaw.
2. Turn the jockey wheel handle clockwise until the wheel is fully retracted.
The support shoe must be firmly engaged in the recess in the outer tube.
3. Open the clamp.
4. Pull the jockey wheel upwards as far as possible.
5. Tighten the clamp.
6. Connect the power cable to the towing vehicle.
7. Route the breakaway cable through the breakaway cable guide ring and loop it around the ball plate.
8. Release the hand-brake lever.
9. Remove wheel blocks.
3. Operating the hand brake (see photo):
Applying: pull the hand-brake lever beyond the noticeable dead-center position.
Releasing: press the locking button and keep it pressed. Push the hand-brake lever back through the dead-center
position to its original position. Always pull the hand-brake lever fully!
4. Electrical connection (see next page):
JMB-C : REV A
DiBO n.v. 94