Question: 2.7.07-325

3 Points

Licenses: CE L T

A considerable amount of longitudinal play becomes apparent in the towing device of the trailer. What effect can this have?

Choose one or multiple correct answers

A. Damage could be caused to the cross beam of the towing vehicle
B. The trailer could shear off
C. The tyres on the rear axle could be overloaded

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Correct answer

A. Damage could be caused to the cross beam of the towing vehicle
B. The trailer could shear off

Comment

If you notice significant longitudinal play in the trailer drawbar, this will affect the final cross member of the towing vehicle (damage) and the trailer can tear off.

Trailer coupling systems

Chapter 2.7.07

2.7.07-201 What control and service work has to be carried out regularly on a fifth wheel?

2.7.07-202 What is the maximum wear allowed for a coupling pin on an automatic trailer coupling with a diameter of 38.0 mm when new?

2.7.07-204 What can be the effect of longitudinal play of the tow-bar of a trailer coupling?

2.7.07-206 Is the tow-bar of a trailer coupling allowed to have longitudinal play?

2.7.07-208 What must you consider when coupling a trailer with ball coupling?

2.7.07-209 What must be checked after you have coupled a multiple-axle trailer to an automatic trailer coupling?

2.7.07-302 What must you do after attaching a semitrailer?

2.7.07-303 What is the maximum vertical play permitted for a coupling pin?

2.7.07-304 You take over a semitrailer which you have not used before. What must you remember before attaching the semitrailer?

2.7.07-305 What must you do before detaching a semitrailer?

2.7.07-306 What is the correct procedure when coupling up a multiple-axle trailer?

2.7.07-308 By which means should the towing bar of a multiple-axle trailer be kept on level with the coupling of the approaching truck tractor?

2.7.07-309 What must you check before coupling up a multiple-axle trailer?

2.7.07-310 You have coupled up a multiple-axle trailer which you have not used before. How can you establish that the towing fork and turning ring are dangerously worn?

2.7.07-312 How can you see that the coupling pin has engaged correctly in the case of an automatic trailer coupling?

2.7.07-314 What is the maximum wear the tow-bar eye may have?

2.7.07-315 What is the maximum play the towing fork may have in the bearing bushes in towing direction?

2.7.07-317 What can be the consequences if the tow-bar of a towing coupling has longitudinal play?

2.7.07-319 How do you have to disconnect the air lines when detaching a trailer?

2.7.07-320 What must you remember when coupling up a trailer?

2.7.07-321 What must you remember when coupling up a trailer?

2.7.07-322 What must you remember after you have coupled up a trailer to an automatic trailer coupling?

2.7.07-323 Which requirements must be fulfilled before coupling a semi-trailer?

2.7.07-324 The coupling pins of your trailer hitch have a diameter of 38 mm when new. What should you note regarding wear?

2.7.07-325 A considerable amount of longitudinal play becomes apparent in the towing device of the trailer. What effect can this have?

2.7.07-326 How much longitudinal play may there be in the drawbar of the hitch?

2.7.07-327 The drawbar of a full trailer is to be kept level with the coupling height of the approaching towing vehicle. How is this ensured?

2.7.07-328 How can you check the state of wear of the drawbar or the turntable of a full trailer?

2.7.07-329 How much wear is permitted on the diameter of the drawbar eye of the hitch?

2.7.07-330 What is the maximum permissible wear measured across the diameter of the towing ring of a drawbar?

2.7.07-401 Your tractor is equipped with a K 80 coupling system with manual locking. What must you ensure when coupling a trailer?

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Question: 2.7.07-325

3 Points

A considerable amount of longitudinal play becomes apparent in the towing device of the trailer. What effect can this have?

Correct answer

Comment

Trailer coupling systems

Chapter 2.7.07

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