Posted this a few other places.
Thought it is important to know
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So heres an interesting little tidbit that I have not seen addressed anywhere in lift maintainance.
The issue of the rub blocks wearing out !
When these inner rub blocks wear it canters the safety lock rails towards the outer ends of the lock dogs,
So much that there is a possibility that outer edge of the dog could crack allowing whatever is on the lift to crash to the ground.
My story is that my 10 year old lift that has given me excellent service had a vehicle resting on the safety BUT the car was slightly cocked - higher on one side than the other.
After much inspection I discovered that I could push against the inner girder (on either side) that holds the lift arms and move it almost an inch.
The rub blocks had worn significantly and had to be replaced.
Now lemmie tell ya - THIS JOB ***** !!!!!!!!!!!!!!
The manufactor tells you to disassemble the entire lift to install the rub blocks.
I managed to do the job by only removing the top section of the girder and using a chain fall on the top of a scaffold to remove the inner girder and replace the blocks.
Took me 2 days and 2 guys to do it safely.
If your lift is over 5 years old I highly suggest checking the positions of the locking dogs and how your safetys are holding,
Oldmics
Thought it is important to know
--------------------------------------------------------------------------------
So heres an interesting little tidbit that I have not seen addressed anywhere in lift maintainance.
The issue of the rub blocks wearing out !
When these inner rub blocks wear it canters the safety lock rails towards the outer ends of the lock dogs,
So much that there is a possibility that outer edge of the dog could crack allowing whatever is on the lift to crash to the ground.
My story is that my 10 year old lift that has given me excellent service had a vehicle resting on the safety BUT the car was slightly cocked - higher on one side than the other.
After much inspection I discovered that I could push against the inner girder (on either side) that holds the lift arms and move it almost an inch.
The rub blocks had worn significantly and had to be replaced.
Now lemmie tell ya - THIS JOB ***** !!!!!!!!!!!!!!
The manufactor tells you to disassemble the entire lift to install the rub blocks.
I managed to do the job by only removing the top section of the girder and using a chain fall on the top of a scaffold to remove the inner girder and replace the blocks.
Took me 2 days and 2 guys to do it safely.
If your lift is over 5 years old I highly suggest checking the positions of the locking dogs and how your safetys are holding,
Oldmics