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11

Criteria for stable towing

Coupling point position Nose load and axle position

Criteria for good driving

Car

1. heavy weight 2. large wheelbase 3. small overhang 4. correct tyre pressure 5. perfect function of the shock absorbers

Trailer

1. low weight 2. long drawbar 3. low centre of gravity 4. use max. permissible nose load 5. large tyres

6. wheel shock absorbers 7. optimum loading (heavy items near the axle) 8. AL-KO hexagonal rubber suspension axle system 9. AKS stabiliser - snaking and pitching movements are efectively suppressed.

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Coupling point position on the completed trailer. This should be considered carefully!

According to DIN 74058 the position of the coupling

430 ± 35 mm point on the finished trailer should lie 430± 35 mm above the horizontal contact surface of the tyre.

Parameters:

n Trailer body aligned horizontally. n Load the trailer to the permissible overall weight. n Tyre pressure as quoted by the tyre manufacturer.

B = S · A = 50 kg · 1800mm= 90mm G

A

1000 kg

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Nose load and axle position Determining the axle position to regulate the nose load

Axle position: B = S · A

G

A

Example:

Single axle trailer with 1000 kg overall weight should have a nose load of 50 kg.

(Dimension A = 1800 mm)

Ideal dimension B?

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