Subject to changes without notice !
Änderungen vorbehalten !
Gearless Lift Machine
WSG-SF
Operating Instructions
EN
Code: GM.8.004284.EN
Date:
28. Jan 2020
Version: 0.16
Page: 26
8.5. Replacing the traction sheave
DANGER
f
The traction sheave can work loose if it is not properly installed.
Necessary tools
•
Hoisting equipment
•
Torque wrench (M 8)
•
Spacer (4...7 mm)
•
Cleaning cloth
Disassembly
•
Disconnect the system and safeguard against accidental restarting. Unit power-off.
Lock out and tag out.
•
Secure the car and the counter-weight.
•
Remove the rope slip-off guards and the rope guards, if provided.
•
Relieve the load on the traction sheave; remove the ropes.
•
Support the traction sheave by means of a hoisting gear
•
Remove the three M 8 bolts (1) at the pressure disc and the pressure disc (3) itself.
1
2
4
3
5
3
6
1
•
Insert two fastening bolts (2) into the outer hole circle of the pressure disc (3) and
into the traction sheave.
•
Insert a 4 - 7 mm spacer (4) between the pressure disc and the shaft journal.
•
Pull off the traction sheave from the tapered shaft seats by tightening the bolts
evenly..
1
2
4
3
5
3
6
1
Assembly
•
Clean the traction sheave and the motor shaft.
•
Support the traction sheave by means of a hoisting gear.
•
Insert the feather key (5) into the shaft end.
•
Slide the traction sheave onto the motor shaft.
•
Fit the pressure disc (3) to the traction sheave and fasten it using three pairs of
NORD-LOCK washers (6) and M 8 x30-10.9 bolts (1). Tighten the bolts alternately
around the circle in three torque steps (10, 20 and 34 Nm) as far as they will go
(
final tightening torque: 34 Nm
).
•
Replace the ropes and reinstall the rope slip-off guard.
1
2
4
3
5
3
6
1
Summary of Contents for WSG-SF Series
Page 111: ......
