4 Repair
4.5.3. Replacement of balancing device
3133HAC022033-001 Revision: K
© Copyright 2004-2011 ABB. All rights reserved.
10. Remove the guide pins.
11. Secure the rear of the balancing device by
fastening the two bearing attachments to the
frame with their four attachment screws.
Shown in the figure Location of
balancing device on page 307!
4 pcs, M16x90, 12.9 quality
UNBRAKO, tightening torque: 300
Nm.
Reused screws may be used,
providing they are lubricated as
detailed in section Screw joints on
page 423 before fitting.
12. Remove the screws from outside of the bearing
attachments and refit the protection plugs.
13. Raise the balancing device to a position where
the balancing device shaft may be inserted
through the piston shaft front eye.
14. Unload the balancing device with the press
tool.
Detailed in section Unloading the
balancing device using hydraulic
press tool. on page 320.
Art. no. is specified in Required
equipment on page 309!
For an easier reassembling of the
shaft, the piston rod may be pressed
out more than necessary and then
pressed in when fitting the shaft.
15. Lubricate the shaft with grease. Art. no. is specified in Required
equipment on page 309!
16. Apply the shaft press tool to the lubricated
shaft .
Fit the shaft to the piston shaft front eye through
the hole in the frame, using the shaft press tool
and the hydraulic pump .
The hole in the frame is shown in the
figure Attachment points, balancing
device on page 308!
Art. no. is specified in Required
equipment on page 309!
NOTE!
Make sure the shaft is pressed all the
way to the bottom.
17. Refit the securing screw and washer into the
shaft using locking liquid.
M16 x 180, tightening torque: 50 Nm.
Locking liquid is specified in
Required equipment on page 309!
18. Lubricate the bearing in the ear with grease
through the lubricating nipple, with a grease
pump.
Fill until excessive grease pierces between the
shaft and the sealing spacer.
Art. no. and amount are specified in
Required equipment on page 309!
Lubrication is further detailed in
section Lubrication of spherical roller
bearing, balancing device on page
221.
19. Restore the balancing device. Detailed in section Restoring the
balancing device using a hydraulic
press tool. on page 324.
Action Note
Continued
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