In
the Spring and Fall we get more than our ordinary amount of calls for the
elevator making “strange noise”. When
the weather changes it effects the composition of the lubricants we use on the
elevator system, which we need to address by adding more or removing the
existing lubricant and adding a different type.
There
are a few areas on elevators that may need more attention when the warmer
weather turns to dryer colder weather two of them are the rails and the
hydraulic gland packing.
Hydraulic elevator
rails
– The rails should be lubricated and as an elevator maintenance provider we
need to pay attention that the rails are lubricated with the correct
lubrication especially during the fall and winter months. The lubrication also protects the rails from
corrosion caused by humidity and environmental pollutants. The lubricant should remove some of the resistance
or “chatter” that causes noise and lets the elevator have increased ride
quality. The proper process is to provide
a very light coating with a cloth that is nearly invisible. The rails should be cleaned before you apply
a new type of lubricant.
Traction elevator
rails
– Same lubrication information as the hydraulic elevator except we need to be
sure that the lubrication does not interfere with the function of the
safeties. Lubricant that does not break
down under pressure may inhibit the elevator safeties ability to work
properly. A lubricant that does break
down under extreme pressure will allow direct unlubricated contact between
safeties and rails and allow the safeties to operate within the set stopping
distance required by code.
[This is a random elevator I visited last week we do not maintain this elevator - the picture is to show the different application of elevator traction versus hydraulic]
[The elevator safety is on the left which engages with the rail to stop the elevator in the event of an over speed in the down direction emergency - we do not maintain this elevator]
Hydraulic cylinder
packing
– During the transition between Summer and Fall or Fall to Winter we may feel
hard starts and stops on the elevator system. We can add a product called Max
Glide, made by Maxton Manufacturing[www.maxtonvalve.com] that will reduce or
stop harsh stops and starts. This product
can be put on the elevator piston as well as put in the hydraulic power unit reservoir. This may be effective for a few days, a few
months or years depending on the composition of the hydraulic cylinder gland
packing. If the Max Glide does not work,
you most probably will need to repack the elevator cylinder gland.
[The cylinder packing is in-between they cylinder and the piston, the shinny long object]
www.maxtonvalve.com
As an elevator maintenance provider we should be monitoring the lubrication of the elevator and have it on a lubrication schedule.
If
you have an questions or would like information from Colley Elevator you can go
to www.colleyelevator.com, email Craigz@colleyelevator.com or call
630-766-7230.
No comments:
Post a Comment