tom......I dont think anyone uses a torque wrench for battery bolts......snug em up but not crazy tight will do it....... believe me!whats the correct torque on battery bolts? (2009 400)
Please stay away from my airplane...Use a Phillips head screwdriver in the bolt heads and make them as tight as you can.
Precise torque is not really important for battery bolts or 99% of the fasteners on a Burgman, or quite frankly any piece of machinery.![]()
Please stay away from my airplane...
Not if you tighten them using a screwdriver, you'll never be able to generate sufficient torque to strip them just using your wrist.precise torque is very important for battery bolts because they easily strip if over tightened
HAHAHAHAHAHHAAHAHAHAHAHAHAHAHAHA.!!!!!!!! Great advice!!! THAT is exactly what I do..Tighten it up 'til it snaps, then back it off a half turn.
I think by any residue they're producing on the paint?Ok, I'll bite.
How exactly do you measure the torque of the rivets holding the wings together?
.... and yes, I fly light aircraft too.![]()
Whilst I don't disagree completely with your statement regarding battery bolts, you are clearly not an engineer! It's easy to strip the threads on battery bolts as the bolts and captivated nuts are light alloy and mild steel mixed. It also depends on the size of screwdriver you use. As an ex-tech/engine design engineer and airframe fitter, I have to disagree. The number of 'home' maintained machines we had in the workshop with stripped threads to sort out was enormous, and precisely because owners had no idea how to tighten nuts and bolts properly and hadn't apparently heard of a torque wrench. Even those that did use a torque wrench set to the correct torque often had loaded the threads with grease or oil and stripped the threads not realising that lubing threads can and usually will cause over torquing. Torque wrench(s) are the most important part of any techs toolkit. But that's not to say you use it on everything. Some fasteners just don't need it as manufacturers don't always specify a torque value. Just use common sense!Use a Phillips head screwdriver in the bolt heads and make them as tight as you can.
Precise torque is not really important for battery bolts or 99% of the fasteners on a Burgman, or quite frankly any piece of machinery.![]()
Whilst I don't disagree completely with your statement regarding battery bolts, you are clearly not an engineer! It's easy to strip the threads on battery bolts as the bolts and captivated nuts are light alloy and mild steel mixed. It also depends on the size of screwdriver you use. As an ex-tech/engine design engineer and airframe fitter, I have to disagree. The number of 'home' maintained machines we had in the workshop with stripped threads to sort out was enormous, and precisely because owners had no idea how to tighten nuts and bolts properly and hadn't apparently heard of a torque wrench. Even those that did use a torque wrench set to the correct torque often had loaded the threads with grease or oil and stripped the threads not realising that lubing threads can and usually will cause over torquing. Torque wrench(s) are the most important part of any techs toolkit. But that's not to say you use it on everything. Some fasteners just don't need it as manufacturers don't always specify a torque value. Just use common sense!
Incidentally, you cannot compare fitting aircraft rivets with torquing nuts and bolts. Aircraft rivets and rivet guns are made to a specific standard and are calibrated to snap at the correct fitment pressure. It's important to use the correct type, size and standard of rivet on any aircraft panelling. That's why engineers are highly trained in that area!
Hi buddy, no...usually best to always torque dry unless there is a specific manufacturers requirement for either thread lock, which obviously will have a lubricating effect during the torquing process (the manufacturer will have factored in the lube effect to the torque figure). Or, the torque figure states that the threads must be lubricated prior to torquing. In virtually all other cases, it's always a dry figure. Reducing the torque figure from it's actual required setting on a lubed thread may be dangerous in critical areas as the nut or bolt may come loose over time.Wow, aviators prefer Burgies?! It has to be some fuselage, hasn't it
So, gents is it a good idea to lubricate dry nuts and adjust torque according to some chart, or the new value might already be too inaccurate?
Hi mate -- yeah i suspected that, but dry threading doesn't last very long and all those crankcase cover (those dry as martini) and inside bolts and nuts require more frequent access than manual says, at least if to care about good clutch and variator performance. And the worst is they are not replaceable....usually best to always torque dry