Elevator Forum

the problem comes from the difference in friction from side to side. you can have the same problem on a single jack holeless if the packings are diffe...

the otis telescopic jacks do the same thing. we increase leveling speed and pump a quart of cat oil into the jack sections with a high pressure pump. ...

whats faults are you getting?

we had a 330a that was doing this on and off for a few weeks ended up being the door op motor connections were loose at the motor. why it ran at all w...

best thing for a 330a and trx5 is the double reboot ram flush. on inspection push the reset button and as soon as the red light turns on again push an...

otis has already replaced some 330a's with 211's. the new board failure rate is fairly high too. every company has its issues, they all try to save a ...

not sure what a 300c controller is but is it a traction car with earthquake? in california a pit full of water usually grounds out the EQ string.

that is a double wrap gearless machine with a friction gear. im thinking a 339HT machine model. very expensive to repair. anyone who installed/adjuste...

no one can know everything. we all get stumped regularly. the humble ones learn, the hot heads burn out.

i think its time this trade comes into the modern age. we are too closed minded sometimes. we should all work smarter not harder. the days of big mach...

no time to clean, 15min. service unit visit only.

i just see a lot of newer controls that slow down to 3 or 4 fpm then set the brake, like this '01 vintage mce stuff. im not sure if it was just never ...

just saw the post i had the exact same car setup/vintage mod do this. mine had the vane readers, no tape and it ended up being a sluggish HW drum brak...

anytime otis takes on a tac20 we install a reliability kit which includes all new relays