4 Repair
4.4.4. Replacement of lower arm
3HAC027151-001 Revision: B188
© Copyright 2006-2008 ABB. All rights reserved.
Refitting
The procedure below details how to refit the lower arm.
5. Remove the upper arm. Detailed in section Replacement of the
upper arm on page 181.
6. Secure the lower arm with a roundsling in
an overhead crane.
7.
CAUTION!
The lower arm weighs 75 kg (gearboxes
axes 2-3 excluded)! All lifting equipment
used must be sized accordingly!
8. Remove the attachment screws and
washers securing the lower arm to gearbox
axis 2.
Shown in the figure Location of lower arm
on page 186.
9. Remove the lower arm.
Action Note
Action Note
1. Secure the lower arm with a roundsling and lift
it to its mounting position.
2.
CAUTION!
The lower arm weighs 75 kg (gearboxes axes
2-3 excluded)! All lifting equipment used must
be sized accordingly!
3. Make sure the o-ring is fitted to the gearbox.
Lightly lubricate the o-ring with grease.
4. Fit guiding pins in two of the holes in gearbox
axis 2.
5. Lift the lower arm on to the guiding pins.
6. Refit the attachment screws and washers
securing the lower arm to gearbox axis 2.
Shown in the figure Location of lower
arm on page 186.
M16x50, quality 12.9 gleitmo (16 pcs).
Tightening torque: 300 Nm.
7. Remove the guiding pins.
8. Secure the upper arm with a roundsling and lift
it to its mounting position.
9. Refit the upper arm. Detailed in section Replacement of the
upper arm on page 181.
10. Refit the cable harness axes 3-6. Detailed in section Replacement of
cable harness, upper end on page
159.
Continued
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