Trailer and Caravan Wheel Bolt Tightening

When refitting a trailers' road wheels it is ESSENTIAL that the wheel nuts/bolts are tightened to the recommended torque figure and in the correct sequence. To neglect this is too run the risk of either the nuts/bolts working loose and the wheel coming off (not tight enough), or damage to and possible shearing of the nut/bolt (over tightened). 

The sequences necessary to correctly carry out this work are as follows:-

Torque figures : Wheel Bolts

AL-KO	Indespension
M10 - 40 lb. Ft / 54 Nm	M12 - 55 lb. Ft / 74 Nm
M12 - 65 lb. Ft / 88 Nm	M14 - 60 lb. Ft / 81 Nm
M14 -108 lb. Ft /146 Nm
Ifor Williams	Avonride
M12 - 65 lb. Ft / 88 Nm } used with	M12 - 65 lb. Ft / 88 Nm
Torque figures: Nuts
Peak Trailers	Indespension
M12 x 1.5 - 75 lb. Ft / 102 Nm	3/8" UNF - 42 lb. Ft / 57 Nm
M16 x 1.5 - 145 lb. Ft / 197 Nm	7/16" UNF - 50 lb. Ft / 67 Nm
3/8" UNF - 45 lb. Ft / 61Nm	1/2" UNF - 56 lb. Ft / 76 Nm
1/2" UNF - 80 lb. Ft / 109 Nm	5/8" UNF - 85 lb. Ft / 115 Nm
Avonride
1/2" UNF - 65 lb. Ft / 88 Nm	5/8" UNF - 79 lb. Ft / 108 Nm

It is ESSENTIAL that the torque settings are re-checked after the first 25 miles or 50 km and subsequently before each journey.