22/56
V 2019/01
Original Operating Instruction Manual
Cranking up / raising
H - 032
1
3
2
Jockey wheel parked (driving position)
1. T-handle
2. Rotation lock (groove)
3. Jockey wheel
►
Crank the jockey wheel (3) all the way up until the hub of
the rotation lock (2) engages in the groove on the cylinder.
►
Unscrew the T-handle (1) and pull the cylinder up.
►
Position the jockey wheel so that the brake linkage is not
blocked (on jockey wheel mounted in the middle).
►
Turn the T-handle until it is tight.
►
Check that the clamp is tightly clamping the cylinder.
6.7 Tyres/wheels
Functional explanation
•
Wheels / tyres are important safety components on the
trailer.
•
The tyres are subject to permanent wear while driving as
well as to an ageing process and need to be checked
regularly.
•
The wheel size must match your type of trailer.
It may not be arbitrarily changed.
•
The licensed wheel / tyre sizes are entered in the EC
certificate of conformity / COC papers for your trailer.
•
No legal requirements for winter tyres, if using trailer
frequently in the winter, we recommend getting winter
tyres.
4. Rims, 5-bolt (aluminium or steel)
WARNING
Worn tyre profile / incorrect tyre pressure!
The tyres could burst while driving – accident risk!
The braking distance increases - risk of snaking!
►
Regularly check the tyres.
►
Check the tyre pressure, profile depth and condition of
the tyres - see maintenance table.
Loose wheel nuts!
The trailer may start to snake, tip over be uncoupled from the
towing vehicle.
►
After every tyre change and after the first 50 km, re-tight
en the wheel nuts.
►
Check that the wheel nuts are seated securely at regular
intervals (see maintenance table).
Check tyre condition
Even on trailers which are not used very often, the tyres
are subject to the influence of the weather, such as
sunshine, cold, etc. which will cause the tyres to age
faster.
H - 033
Check tyre condition
►
Regularly carry out a thorough visual inspection of the
tyres.
Look out for possible cracks and foreign bodies.
►
Replace the tyres after about 6 years of use.
- Rubber becomes porous and brittle over time.
►
Check the pressure of the tyres when cold before setting
off and at the latest 14 days later - see maintenance table.
The maximum tyre pressure applies for both an empty
and a fully laden trailer.
►
Check the profile depth of the tyres around the middle of
the tread.
In Germany, a minimum of 1.6 mm is required.
Tyre sizes and pressures:
Tyre size
p
max.
in bar
145 / 80 R13 (unbraked)
3.0
185 / 65 R14 (braked)
3.0
►
Check the tyre pressure on all wheels on a regular basis
and before long journeys.
►
Tighten all wheel nuts (crosswise) using a torque spanner:
Rim material
Max. torque in Nm
Steel
100 - 110
Aluminium
120
►
Check that all wheel nuts are seated securely at regular
intervals (see maintenance table).