Subject to changes without notice!
Gearless Synchronous Lift Machines
WSG-10
Operating and Maintenance Manual
Page 24
Date 11.29.2016
Version A
Code J40069
Operation and safety instruction
Maintenance
• Ensure working situation of brake is inside the
min. Ambient condition
• Ensure the brake works under the designed duty
(S3-60%)
• Prevent brakes from dropping or colliding during
transportation. Avoid damaging the mechanical
parts or electrical components.
• When use the hand release to manually open the
brake, make sure the torque is lower than 68Nm/
82Nm.
• After a long term period operation of the traction
machine, the braking lining may be abraded. The
brake gap would be increased to cause a loudly
noise. In case the thickness of brake lining is less
than 3mm or the noise of the brake higher than
75dbA, the brake must be re-adjusted or replaced.
• The WB brake requires a high quality of installation
because of the special construction characters It is
common that in the beginning after the machine and
brake handover to customer, the gap may increase
a little bit because the brake lining cannot match to
brake wheel in 100%. It requires attention frequently.
When the air gap turns larger (noise level would
increase at the same time), the adjustment is require
immediately.
• The work condition of WB brakes is S3- 60%, the
brakes could not work in normal in certain special
condition which gives a high temperature such as:
long working period with high electricity more than
60%, or environmental temperature goes up to more
than 40 degrees. These will all lead to failure alarm
of traction machine. In such cases, the frequence of
elevator operation to be reduced or an air condition
maybe is needed in the machine room.
• The operation voltage to be checked reguarly
otherwise it may cause brake damage by high
voltage or operation failure by low voltage.
• After a long time working, the gap may become
big by the consumption of the brake lining. In
this case, the noise of the braking will be louder
and the responding of the braking will be longer
with a safety risk. Therefore, a report to the
maintainer for maintenance is constraint.
Friction pad thickness b=8.5mm, we need to
replace it when worn out more than 3mm.
Note
Summary of Contents for WSG-10
Page 32: ......
