Brenderup wheel bolt torque.

[hosspuller]

I’ve been told the Brenderup wheel bolts are one-time use. (meaning they’re replaced when removed) Seems this would be a poor design for a trailer. The spare would be useless without a set of new bolts. Further I was told the torque spec was 215 foot pounds.

I am dubious of this information. According to a few on-line metric bolt charts a grade 8.8 14 mm bolt should be 101 ft/#

Can anybody confirm torque # ? or Wheel bolt design ?

PS …The Solo trailer has 4 bolts per wheel. Perhaps the Baron or other B’up trailers has 5 or 6 bolts.

[clanter]

Are you sure your source was correct when they said Foot Pounds? 215 foot pounds of torque is a very high setting, a setting normally used on very big truck wheels.

I am only speculating. but would think Newton Meters would be the measurement setting since this an European trailer. Even so, 215 Newton Pounds converts to 158.5 Foot Pounds which also seem high but not unheard of.

If the 215 (either Newton Meters or Foot Pounds) is correct then replacing the studs would be correct as safety

so hunted around some to find this PDF file on servicing a Brenderup horse trailer manuals
http://www.aijiuyujia.com/brenderup-horse-trailer-manual.html [h=1][/h]

WHEEL NUTS Replace worn wheel nuts as necessary. NOTE. Tighten up to wheel manufacturers recommended torque (if in doubt consult supplier). We recommend that once the hubs have been refitted that the brakes are adjusted – please refer to the “adjustment” section of SPREAD LEVER BRAKES.

TORQUE SETTINGS
M12 grade 10.9 bolt 100Nm
M12 grade 8.8 bolt 70Nm
M14 grade 10.9 bolt 125Nm

http://www.knottuk.com/fileadmin/Knott-UK/usr/docs/KF089_-Fitting_Instructions_2.pdf

so I would second guess the 215 Newton Pound setting

[hosspuller]

Thanks Clanter… I have found a Brenderup manual on-line that specifies a 214 foot-pound torque for the axle “NUT” and states the nut is a one time use. I believe my source has it confused with the wheel lug bolts.

I’m still looking for a Brenderup specification for the Solo wheel lug bolts.

The lesson here is an old Reagan saying… “Trust, but verify”