Sevice wheelnut tightening

Not counting getting one's equipment out of wherever it is stowed, I reckon it would take just over a minute to loosen and retorque both wheels on a single axle caravan. Maybe this could be the basis of a new arena event for The National Rally . . . . ?

It's not as if one has to do it every 30 miles thereafter. The situation the advice is relating to is not that the nuts/bolts slacken but that the wheel has settled closer to the hub during running creating a gap between it and the nut/bolt head.

Also worth mentioning that after each session one must unscrew the tension on the torque wrench mechanism so that over time it does not become inaccurate.

Not counting getting one's equipment out of wherever it is stowed, I reckon it would take just over a minute to loosen and retorque both wheels on a single axle caravan. Maybe this could be the basis of a new arena event for The National Rally . . . . ?

I referred to on motorways and the time would be taken on entering a service area, parking and exiting.

It's not as if one has to do it every 30 miles thereafter. The situation the advice is relating to is not that the nuts/bolts slacken but that the wheel has settled closer to the hub during running creating a gap between it and the nut/bolt head. 

I can't see why that would not apply every time that the wheels were retorqued? 

I can't see why that would not apply every time that the wheels were retorqued?

The check needs to be done once only following initial tightening when wheel has been removed and replaced. There would be even more chaos on the road network if every vehicle had to have every wheel checked every 30 miles.  Somehow I don't think that was what you meant.

While experts advocate that caravan wheel bolts/nuts should be torqued/re-torqued every time the caravan goes out do they also suggest we do the same to our cars' wheel bolts ..... vehicles that do thousands of miles between services etc. Other than when removing a wheel on my car's for maintenace I never go anywhere near them with a wheel brace (I have a calibrated right arm)

I always check shortly after service, before every trip and check the car whilst the torque wrench is in my hand, at times

it has surprised me how on both car and caravan slight tightening has been required.

The time taken is nothing to losing a wheel at speed.

I think you will find he set the wrench to 130Nm which equates to 96lb. which is correct.

Whether it is correct or not depends on the caravan make/model

Easy and others are right. There’s no 'one size fits all'. 

Torques should be checked for calibration every 12 months , Bet they are not

I guess you mean torque wrenches.

I think it's every 5000 uses or 12 months, whichever is the sooner.

There’s a good explanation of torque here for anyone interested -

https://www.gedore-torque.com/linkservid/246C9848-1B0C-47B6-923B3EF7D15B96EE/showMeta/0/