But as you and Navver rightly say WSL are 130Nm (Apologies both)
And in the Bailey book.
So if that is the recommendation by Bailey to tighten at 130Nm how can it be your fault?
But Alko say max on their hub of 110Nm
Is this a case of Alko not supplying the WSL bolt on their hubs, and Bailey, and other manufactures putting WSL on Alko hubs in the factory?
Either way I would think that Bailey should be accountable for this.
Be interesting to find out who is right and wrong between them.
It seems you are not at fault, reading all the info we have come across between us all.
Who told you to torque studs to 135nm? Can you not identify them & will they not admit to telling you that?
Is service manager suggesting overtightening in excess of 135nm? It does suprise me that 135nm would be enough to strip thread.
Are you using torque wrench correctly? Some users have a tendency to continue to apply pressure after wrench has clicked causing overtightening. I take it you have not accidently set wrench to 135lbs/ft?
i was told at hand over and yes i know how to use a torque wrench i get it checked yearly use it for other jobs that require correct torque settings Phots on my profile of hub
Way forward then is to identify whoever told you 135nm & hope they will admit to it. If you were given incorrect info by employee of dealer then they should pay for repair. Presumably correct torque setting figure is with your caravan handbook & paperwork, yes?
Bottom line is i don't think you have done anything wrong.
Argue the fact with them, and if you get no where say you are going to report the issue to VOSA.
Scare them a bit. (Might Work)
Is it a defective hub. (casting)
Bailey ignoring ALKO recomendations on tightening wheels onto there hubs by using WSL bolts.
Do Alko have a recomendation on WSL Bolts and how tight should they be on there hubs.
Lot of questions with little answers, but i do hope you get it sorted one way or another.
This is a 2015 Bailey Pursuit which should have the new WSL bolts which should be torqued to 130Nm.
Bailey hand book says
• The torque setting of the caravan’s wheel bolts
should be checked 30 miles after collection
from the caravan retailer. Thereafter, wheel
bolts should be checked before every journey.
The torque settings and tightening sequence
are detailed on page 21 of this handbook.
Bailey manual hitching up instructions includes this.
Hitching Up
Before hitching up the vehicle always check
the following:
1. All wheel bolts are tightened to the correct
torque. When fitted with alloy wheels, bolts
should be tightened to a torque of 130Nm
(Newton metres). For the steel spare wheel
supplied with the caravan the wheel bolts
should be tightened to 120Nm.
Manual maintenance section says
Wheels
Caravan wheel bolts must only be tightened to the
appropriate setting by tightening each opposite
fixing in succession to the correct torque. Always
use a calibrated torque wrench. Do not use a corner
steady brace, power or electric wrench. It is as
dangerous to over-tighten bolts as to not tighten
them sufficiently.
! The torque settings should be checked
after the first 50km/30 miles. For alloy
wheels the wheel bolts should be
tightened to a torque of 130Nm (Newton metres)
(96 lb-ft), for steel wheels the wheel bolts should
be tightened to a torque of 120Nm (88 lb-ft)
There are other references to it but always 130Nm.
So the owner is instructed to check the torque settings to 130Nm by Bailey in writing.
One thing that bothers me. Are the wheels bolts or nuts on studs. My guess is bolts going into a cast iron drum. The photos show some really serious damage, far worse than could be expected from slightly over tightening the correct bolts. The bolts would have to be the incorrect thread, or cross threaded and then really forced. Ay owner would have to be really ham fisted to achieve this and would probably have to use a powerful torque wrench to do it.
Yes, I found it difficult to believe that simply tightening to 135nm would have damaged thread in drum. Unless op can prove any of his dealer's workshop staff were at fault it will be difficult to prove dealer workshop liability. In these sort of disputed incidents, some dealers can be persuaded to make a 'goodwill gesture' & some not.
The upside is of course that damage has been discovered & can be rectified without an accident occurring.
Let me explain this before people start messing with torque settings and we start having wheel detachments.
all steel wheels are torqued to 88nm
Alloy wheels vary from van to van from 110nm up to 160nm.
Please refer to your owners manual for the correct torque for Your caravan!
Also be aware that my torque wrench for example is calibrated every year. Your own may be a few years old and they can be quite a bit out hence i have 2 to double check.
Bailey torque setting are higher than most on newer vans but 135nm isnt the correct setting.
If you have told the dealer that is what you set them at you have admitted overtightening. As your manual says 130nm . I know 5nm isnt a lot but its the dealers get out of jail card if they choose to go that way. £150 for replacement drum, and nuts isnt too bad as you will also require a new one shot when its fitted also.
I hope this clears up the settings issue.
.
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