Service and maintenance
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Frame:
Check the suspension, axle mountings and screw connections every day and re-tighten if necessary.
If technical changes are found in the springs or too much play on the bearing bolts, rectify the problem
immediately. Check the mounting bolts on the drawbar eye after the first 10 operating hours, then check
every 50 operating hours to ensure they are firmly seated and re-tighten if necessary.
Axles:
The following excess strain shortens the service life of the bearings and leads to axle damage:
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Driving over edges
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Excessively high driving speeds
Adjusting the wheel hub bearings:
The ideal axial play for the wheel hub bearings is between 0.02 and 0.05 mm.
1. To adjust the wheel bearings, take off the wheel caps and remove the safety cotter pin or safety
spring cotter.
2. Tighten the castle nut while simultaneously turning the wheel hub until you feel slight resistance.
3. Turn the axle nut back to the next cotter pin hole and re-tighten.
4. Check the running of the wheel bearing, and check for rocking. The wheel must not offer any
resistance when turned and there should be no noticeable rocking at the wheel rim or brake drum.
5. Re-apply the wheel cap.
6. Never drive without wheel caps as penetrating water and dust will destroy the bearings.
10.4.2 Cleaning the vehicle
There is a risk of injuries on movable parts when cleaning work is performed with the
trailer coupled. When performing cleaning tasks, turn off the towing vehicle engine,
apply the parking brake and remove the ignition key.
Empty the trailer completely before cleaning the inside.
During the first four weeks, clean the trailer only with clear water and do not use a high-pressure
cleaner. If the trailer is delivered in winter, it must be washed immediately after it is received to remove
any road salt that has collected on the trailer.
Note the following rules for upkeep of the trailer:
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Wash the trailer only with clear water without any cleaning additives to prevent paint damage.
Repair any paint damage immediately.
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When cleaning with a high-pressure cleaner, maintain a distance of at least 400 mm with the
spray nozzle.
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The water temperature must not exceed 60° when cleaning.
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Clean the trailer after every use in winter to prevent damage from road salt.
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Clean impurities out of the dirt traps regularly. This can be done with a high-pressure cleaner.
Note the following rules for cleaning and maintaining the electrical connections:
As a rule, electrical connections must not be cleaned with water or mechanical objects. We recommend
that you use compressed air at 6 to 8 bar in combination with an air blow gun.
