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    Tech Center   Installation Instruction for Pulleys

Installations:

  1. Clean and degrease the bore and taper surfaces of the bush and the tapered bore of the pulley, insert the bush into the pulley hub and line up holes(half thread holes must line up with half straight holes).

  2. Lightly oil the grub (bush size 1008 to 3030) or the cap screws(buh size 3535 to 5050) and screw them in do not tighten yet.

  3. Clean and degrease the shaft. Fit pulley with taper bush on shaft and locate in desired position.

  4. When using a key it should first be fitted in the shaft keyway. There should be a top clearance between the keyway in the bore.

  5. Using a hexagon socket wrench(DIN911) gradually and tighten the grub cap screws iin a accordance with the torques as listed in the schedule of screw tightening for torques.

  6. When the drive has been operating under load for period(half to one hour) check and ensure that the screws remain at the appropriate tightening torque.

  7. In order to eliminate the ingress of dirt fill all empty holes with vaseline.


Removal:

  1. Loose and remove all the screws and placet hem in holes in bushing.

  2. Tighten the screws alternatively till the hub's grip on bushing is loosen. The inner bore of bushing can be slid on the shaft.

  3. Remove the bushing from the shaft. 



    Bush      No.

    ScrewTightning Torque (Nm)
Screw
QtySize
1008
1108
5.621/4"
 BSW
1210
1215
2023/8"
 BSW
1310
1315
202 3/8"
 BSW
1610
1615
202 3/8"
 BSW
2012
2017
3127/16H
BSW
2517
2525
4821/2H
 
BSW
3020
3030
902 5/8"
 BSW
3525
3535
11231/2"
BSW
4030
4040
17035/8"
 BSW
4535
4545
19233/4"
 BSW
5040
5050
2713  7/8”
 BSW