ABB IRB 920 Product Manual page 503

6
7
8
Loosening the transmission module screws
1
Product manual - IRB 920
3HAC075721-001 Revision: C
Action
Mark the location of the ball screw shaft grooves
on the ball screw lower nut.
Take out the ball screw with the flange assembly
carefully.
CAUTION
Move the special tool along with the ball screw
shaft until it is totally inserted into the lower nut
of the ball screw and keep the status.
When the special tool is totally inserted to the
lower nut of the ball screw, support the special
tool with some thing.
Or the ball screw lower nut will be destroyed.
Lay down the ball screw assembly.
CAUTION
If the ball screw nut or ball screw spline nut go
out of the screw shaft, the ball screw is destroyed.
Be careful when you do any work that may cause
this.
Action
DANGER
Make sure that all supplies for electrical power,
hydraulic pressure, and air pressure are turned
off.
© Copyright 2022 ABB. All rights reserved.
5 Repair
5.6.5 Replacing the ball screw
Continued
Note
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Note
Continues on next page
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