4 Repair
4.5.5. Unloading the balancing device
2973HAC020993-001 Revision: G
© Copyright 2004-2008 ABB. All rights reserved.
2. Fit the correct press device and moving pin to
the press tool. Secure with the bolt, press
device.
Note! Make sure the bolt is secured properly!
Shown in the figure Press tool and
hydraulic cylinder on page 295.
3. Remove the rear cover of the balancing
device, by unscrewing the attachment screws
(E).
xx0300000606
• E: Rear cover attachment
screws, 8 pcs
4. Remove
• the o-ring from the balancing device
end.
• the support shaft, including the
damper, from the balancing device.
• the remaining o-ring from the balancing
device end.
5. Fit the press tool to the rear of the balancing
device with enclosed bolts. Tighten them
properly!
Art. no. is specified in Required
equipment on page 296!
See the figure Press tool and hydraulic
cylinder on page 295!
6. Fit the hydraulic cylinder to the press tool. Art. no. is specified in Required
equipment on page 296!
See the figure Press tool and hydraulic
cylinder on page 295!
7. Connect the hydraulic pump to the hydraulic
valve and connect one of the hoses to the
hydraulic cylinder on the press tool.
8. Open the tap to the connected hose. Check
that the other tap is closed.
Note! Only one tap may be open at a time!
9. Increase the pressure and press until the front
eye of the piston rod is aligned with the hole in
the frame, through which the shaft may be
pulled out or pressed in.
Note! Make sure the piston rod is
properly unloaded before removing the
shaft from the front eye, otherwise the
shaft may be damaged!
10. Close the tap to the hose.
11. Keep the hydraulic cylinder and pump
connected in order to keep the balancing
device unloaded in correct position!
The hydraulic pump can be used by
connecting the second hose of the hydraulic
valve to an other tool.
Action Note/Illustration
Continued
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