WITTUR WSG09, Руководство по эксплуатации и техническому обслуживанию

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21.05.2015
E
Gearless Synchronous Lift Machines
WSG09.X
Operating and maintenance manual J40003
Page 23
Date
Version
Subject to changes without notice!
12.6. Replacing the traction sheave
The traction sheave has to be replaced when a
limited situation.
Disassembly
r
Power off the system and safeguard against un-inten-
tional reclosing.
r
Secure the car and the counter-weight.
r
Remove the rope slip-off guards and the rope guards, if
provided.
r Relieve the load on the traction sheave; remove the ropes.
r Support the traction sheave by means of a hoisting gear.
r Remove the 12xM12 fastening bolts.(red cycle)
r Insert the M12x80-8.8 Ḛ or above ḛ bolts into the two
threaded forcing holes and force off the traction sheave.
( red square)
Assembly
r
Clean the traction sheave and the rotor ange.
r
For better assembly heat up traction sheave.
r
Slide the traction onto the rotor ange as far as possible.
r
Insert the fastening bolts and tighten diagonally oppo- site
bolts. Use "omni t 100" or a similar adhesive to secure the
bolts. Tighten them along the bolt hole circle (MA = 79
Nm) with a torque spanner.
r
Replace the ropes and reinstall the rope slip-off guard.
Danger
12.7. Brake
Electromagnetic brakes is a kind of special
product for lift using. It is always pre-adjusted
before delivery. It can only be assembled ,
adjusted and maintained by the manufacture
of traction machine with qualified skills for
certain purpose on the eld. The responsibility
will not be taken if the above instruction is not
complied.
Type selection
In order to nd a proper type and torque for the brake, the
safety factor is always considered. In common case, M
brake
=
Ḛ
1.1~1.25
ḛ
M
N
(M
N
is the nominal torque of the machine)
Operation condition
Ambient temperature: +5 ... 40
°C
Max. rel. humidity: 85 % at 20 °C
(no moisture condensation)
IP: IP43
Replacement of the brake
In case the thickness of brake lining is less
than 3mm or the noise of the brake higher
than 75dbA, it must be readjusted or replaced.
Power off the system and safeguard against
un- intentional reclosing.
Secure the car and the counter-weight and
make sure there's no loading on the traction
sheave
Note
Note
Procedure of disassembly
r
Disconnect the wiring regarding
to the brake power and brake
monitoring from the terminal box.
r Relieve the 4xM10 bolts as it is
showed in red cycle as following,
Danger