3
(Un)coupling the trailer
32
Operation
Trailer coupling on car / height of ball head coupling on trailer
Fig. 2
Maximum swivel range of ball head coupling
1
Trailer coupling (ball head) on towing vehicle
2
Ball head coupling (trailer)
Only to be used with ball head coupling according
to Directive 94/20/EC or ECE R55 with a 50 mm Ø
ball head.
WARNING
Limited swivel range!
Short / incorrect car couplings can limit the necessary
swivel range - trailer could come uncoupled.
Use a trailer coupling with a free standing ball head.
Before setting off, check that your car coupling allows
the necessary swivel movement horizontally and verti-
cally.
Fig. 3
The height of the ball head
Height min. 395 mm / max. 465 mm
Ball head couplings for trailers are built to DIN
74058 or ISO 1103 with a height of 430 ± 35 mm.
By raising the coupling (Fig. 4 /1), the height of the ball
head coupling can be matched to the height of your car
trailer coupling through underlining.
Before connecting up your trailer for the first time, make
sure that the car trailer coupling has been aligned with
the ball head coupling:
- Height of both couplings
- Design of the car trailer coupling
- Electrical connection (plug: 7 or 13-pin)
Fig. 4
Coupling height increase
1
Coupling height increase 50 mm
2
V shaped draw bar
WARNING
Trailer at an angle!
The required swivel range is limited / increased coupling
wear / road handling is impaired- trailer could come
uncoupled.
Before connecting up your trailer for the first time, check
that the height of the ball head on the car is in the range
of 395 - 465 mm between the road surface and the
middle of the ball head.
Adapt the height of the ball head coupling on the car or
pad out the overrun device if the height difference is too
great.
If necessary, have a different ball head coupling
attached to your towing vehicle in a specialist workshop.
Do not drive with a trailer which is at an extreme angle to
the car (or tilted forwards or backwards).
B - 024
20°
20°
25°
25°
1
2
B - 025
430
±
35
B - 026
1
2
50
Summary of Contents for 1000 Series
Page 1: ...GENERAL CAR Program PART 1 OPERATING MANUAL humbaur com 1000 8400 SERIES EN ...
Page 9: ...1 7 Safety ...
Page 21: ...2 19 General information ...
Page 31: ...3 29 Operation ...
Page 67: ...3 65 Operation Trailer safety ...
Page 75: ...4 73 Chassis ...
Page 103: ...5 101 Body ...
Page 134: ...Cover net 5 132 Body ...
Page 135: ...6 133 Electrical system ...
Page 145: ...7 143 Testing care and maintenance ...
Page 185: ...8 183 Troubleshooting guide ...
Page 194: ...Hydraulics 8 192 Troubleshooting guide ...
Page 195: ...9 193 Proof of inspection ...