4 Repair
4.4.5. Replacement of complete lower arm
2713HAC026876-001 Revision: C
© Copyright 2006-2008 ABB. All rights reserved.
6.
CAUTION!
The lower arm weighs 160 kg! All lifting
equipment used must be sized accordingly!
7. Lift the lower arm and move it to its mounting
position.
8. In case the hole pattern of the lower arm and
the gearbox axis 2 does not match, use power
supply to release the motor axis 2 brakes and
rotate the pinion and gear with the rotational
tool.
Connect power supply to connector
R2.MP2
• +: pin 2
• -: pin 5
xx0200000165
The rotation tool (A) is used beneath
the motor cover, directly on the motor
shaft as shown in figure above.
Art. no. is specified in Required
equipment on page 267.
9. Disconnect the power supply, if used.
10. Secure the lower arm with 18 of the
20attachment screws and washers in gearbox,
axis 2.
20 pcs: M16 x 50, tightening torque:
300 Nm.
Reused screws may be used,
providing they are lubricated as
detailed in section Screw joints on
page 390 before fitting.
11. Remove the guidings and secure the two
remaining screws as detailed above!
12. Remove the lifting tool from the lower arm.
13. Refit and restore the balancing device. Detailed in section Refitting of
balancing device.
14. Refit the upper arm. Detailed in section Refitting, upper arm
on page 263.
15. Perform a leak-down test. Detailed in section Performing a leak-
down test on page 188.
16. Refill the gearbox with oil. Detailed in section Oil change, gearbox
axis 2 on page 157.
Action Note
Continued
Continues on next page
To Next Page
Loading...
