ABB IRB 760 Series Product Manual page 218

4 Repair
4.4.3 Replacing the upper arm
Continued
14
15
16
17
18
Removing the upper arm
1
2
3
Refitting the upper arm
Preparations
Use this procedure to prepare for refitting the upper arm shafts.
1
Continues on next page
218
Action
Use caution and press the shaft out, using
both glycerine and hydraulic press tools:
1 Pump up the glycerine pump to 500
bar.
2 Pump up the hydraulic pump to 500
bar.
3 Use caution and continue pumping up
the pressure of the glycerine pump
until the shaft is loose.
4 Release the pressure to 0 bar in the
tool when the shaft has come free.
Remove the shaft fitting/removing tool.
Use caution and remove the shaft.
Put the shaft in a clean and safe place.
Remove the other shaft in the same way by
following the steps above.
Action
CAUTION
The upper arm (excluding the tilthouse unit)
weighs 150 kg. All lifting equipment used
must be sized accordingly!
Remove the radial sealing and inspect. Re-
place if damaged.
Use caution and remove the upper arm. Put
it somewhere clean and safe on some pallets.
Action
Remove residues of Loctite and other contam-
ination from the shaft and on the bushings in
the hole where the shafts shall be refitted.
© Copyright 2011-2018 ABB. All rights reserved.
Note
Note
The shaft can not have any weight applied
from the upper arm in order to come free,
otherwise it may be jammed! The shaft
should come out by itself. Adjust the lift
of the upper arm, if the shaft seems to be
jammed.
Note
The shaft can not have any weight applied
from the upper arm in order to come free,
otherwise it may be jammed! The shaft
should come out by itself. Adjust the lift
of the upper arm, if the shaft seems to be
jammed.
Note
Shown in the figure:
• Cut away view of the assembly of
the upper arm components on
page 212
Note
Shown in the figure:
• Cut away view of the assembly of
the upper arm components on
page 212
Product manual - IRB 760
3HAC039838-001 Revision: M