AndyStobbs
Member
- Messages
- 2,475
- Location
- North West England
One for the automotive type guys on here,
Been on with errecting a recently bought (second hand) tecalemit MK5 lift.
Its a two post with brass load nuts, manufactured in 1984.
At the time of purchase I was advised the load nuts had been renewed approx 10 years ago.
It seems the lift initially developed a fault where by it wouldn't work, the previous owner deemed this to be too much slack in the interlock safety cable (this is wire cable designed to monitor load nut wear), locking out the lift once the nuts are worn out.
Upon taking the cover off the drive post today, I discovered the safety nut is a good 30mm below the lift nut (on this post atleast), and I can detect considerable play in the lift nut itself (though this is a little bit difficult with the unit still installed - I did have the weight of the lift arms off the lift nut though). I plan to strip the posts down to make a proper assesment of lift nut wear, and was wondering if anybody has a figure for allowable wear?
Also when it comes to re-assembly, surely the safety nuts should be closer to the lift nut than 30mm? Does anybody have a figure for that gap?
And the safety cable will have to be renewed due to fraying, when installing a new cable with new lift nuts, should the tension be set so that the spring is fully compressed?
I have tried to find a manual for the lift, with no success. Hopefully somebody has prior experience.
Thanks
Andy
Been on with errecting a recently bought (second hand) tecalemit MK5 lift.
Its a two post with brass load nuts, manufactured in 1984.
At the time of purchase I was advised the load nuts had been renewed approx 10 years ago.
It seems the lift initially developed a fault where by it wouldn't work, the previous owner deemed this to be too much slack in the interlock safety cable (this is wire cable designed to monitor load nut wear), locking out the lift once the nuts are worn out.
Upon taking the cover off the drive post today, I discovered the safety nut is a good 30mm below the lift nut (on this post atleast), and I can detect considerable play in the lift nut itself (though this is a little bit difficult with the unit still installed - I did have the weight of the lift arms off the lift nut though). I plan to strip the posts down to make a proper assesment of lift nut wear, and was wondering if anybody has a figure for allowable wear?
Also when it comes to re-assembly, surely the safety nuts should be closer to the lift nut than 30mm? Does anybody have a figure for that gap?
And the safety cable will have to be renewed due to fraying, when installing a new cable with new lift nuts, should the tension be set so that the spring is fully compressed?
I have tried to find a manual for the lift, with no success. Hopefully somebody has prior experience.
Thanks
Andy