landrover598 Posted November 16, 2006 Share Posted November 16, 2006 Is it just me, or are 16, M12 8.8 grade bolts a bit OTT to hold down an 8000lbs winch ? Quote Link to comment Share on other sites More sharing options...
Les Henson Posted November 16, 2006 Share Posted November 16, 2006 Just a wee bit I would have thought. I have a winch bumper, and it has 6 x M10 bolts holding it to the vehicle, and then 4 x M10 fittings that came with the winch to bolt it to the bumper. Winch is Warn XD9000. Les. Quote Link to comment Share on other sites More sharing options...
landrover598 Posted November 16, 2006 Author Share Posted November 16, 2006 I was a bit shocked when i went to measure the footprint, only to find 4 threaded holes in each foot, and 16 bolts in a bag Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted November 16, 2006 Share Posted November 16, 2006 Yes n No My "Thing" on the front has a foot print that has on the base 4x bolts on each foot thats 16 bolts total, and then 4 through the front, but these are M12 and thats an industrial 14,000 hyd...so maybe yes a tad but What the point when this is all bolted to the bumper and then the bumper has say 2x m10s through eacj chassis leg In simple terms the extar bolts can reduce flex, ie the unit trying, under load to twist itself off, but the strength is only as strong as the weakest part of the assemble, be that winch to bumper, bumper to chassis, or as often is the case the actual chassis itself ? Lastly bear in mind that bolts on the bottom are in "Shear" and in the case of mine is seen mounted often as a industrial recovery winch on a falt mount, poss why there are 16 bolts, then again if the winch is forward mounted and as is mine has 4x bolts the forces on those bolts is hugely different. As it is I have all 16x base bolts in, plus 4 at the front, the fixing to the chassis is equally OTT and the chassis strengthened, but I still worry.....what might give and where ? Nige Quote Link to comment Share on other sites More sharing options...
landrover598 Posted November 16, 2006 Author Share Posted November 16, 2006 It's not going on a landy, it's going on a telehandler, It's a Brevini Raptor hydraulic and weighs a ton Good job i'm mounting it on 15mm Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted November 16, 2006 Share Posted November 16, 2006 Oh........... A HD repair section.............. Nige Quote Link to comment Share on other sites More sharing options...
landrover598 Posted November 16, 2006 Author Share Posted November 16, 2006 And reinforced with 80x80x6 box and 40x80 flat Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted November 16, 2006 Share Posted November 16, 2006 ...and proper 'little stiffener' too Quote Link to comment Share on other sites More sharing options...
bishbosh Posted November 17, 2006 Share Posted November 17, 2006 Dave, It's not just a case of "how many" or "how big". A few correctly sized bolts positioned effectively will be much better than loads of bolts thrown at it. I would suggest that if it looks as though it was "designed" then leave it be. Quote Link to comment Share on other sites More sharing options...
SteveG Posted November 17, 2006 Share Posted November 17, 2006 Give up Bish, you'll never educate these poor souls! Steve Quote Link to comment Share on other sites More sharing options...
freeagent Posted November 17, 2006 Share Posted November 17, 2006 Dave,It's not just a case of "how many" or "how big". A few correctly sized bolts positioned effectively will be much better than loads of bolts thrown at it. I would suggest that if it looks as though it was "designed" then leave it be. the mans right, you'll probably find that 6 or 8 bolts, sized and positioned correctly will do the job... Quote Link to comment Share on other sites More sharing options...
landrover598 Posted November 17, 2006 Author Share Posted November 17, 2006 The 4 hole centres on each foot are on a square 25mm x 30mm, barely enough room to get a socket onto the head of the bolt. Seems a bit odd to me, but as you said Bish, someone has desigined it that way for a reason so i've designed the mount with 16 holes. Quote Link to comment Share on other sites More sharing options...
landrover598 Posted November 23, 2006 Author Share Posted November 23, 2006 The winch mount was tested today to 4 Ton, and all 16 bolts held the winch in place, no suprise really I've just got to undo them all and retorque them all once it's painted Quote Link to comment Share on other sites More sharing options...
GBMUD Posted November 23, 2006 Share Posted November 23, 2006 That mount is going to look pretty silly on your hybrid Dave. Chris Quote Link to comment Share on other sites More sharing options...
landrover598 Posted November 23, 2006 Author Share Posted November 23, 2006 I don't think the front springs would be happy with an extra 250-300kg on them Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.