HAPERT COBALT HB, Manual

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Wagenbouw HAPERT
26
Relationship between load, tyre pressure, ball thrust and coupling height:
Poor road handling is unavoidable if a trailer creates a negative ball thrust because it is
poorly loaded and if it is connected to a towing vehicle with a lower coupling height. If
this is combined with a tyre pressure which is too low (see 5.1.1), then a dangerous
situation may arise. For that reason, all the warnings given above must be observed.
3.2.3
B
EFORE PULLING AWAY

Raise the support wheel and secure it in position. The support wheel must always
point in the direction of travel (the support wheel must not impede the movement of
the brake rod).

Check the coupling. The coupling housing must completely enclose the ball and
must be secured. Make sure the coupling is in the right position >>+<< (see figure 5).

Attach the safety cable to the towing vehicle (see figure 11).

Insert the lighting plug.

Regularly check the tyre pressure (see table 5.1).

Make sure the load is evenly distributed and properly secured.

Check the lights: indicators, rear lights, brake lights (the load must never obscure the
view of the lights).

Before driving off, make sure any wheel blockers have been removed and that the
handbrake on a braked trailer has been released.

Check whether the cargo bed is secured to the chassis (only for type INDIGO HT
and LT).

Check whether all the locking pins are fitted and secured in place (only for type
COBALT HM and ).

Make sure the supports are secured in their top position and, if necessary, rotated
90° so that they lay parallel to the chassis (see figure 9).
The trailer has an auto-reversing mechanism. This means that if you reverse, the
overrun brake does not have to be blocked.
Safety cable
Figure 11