ABB IRB 8700 Series Product Manual page 252

4 Repair
4.5.1 Replacing the upper arm
Continued
3
4
5
6
Removing the balancing devices
Use this procedure to remove both balancing devices.
1
Continues on next page
252
Action
Remove the screws, fitted in the screw
holes on top of the balancing device.
Note
Keep the screws. They shall be refitted
after the work is done.
Apply some Molykote on threads and at
the bottom end of two fully threaded
screws.
Unload the pressure of the balancing
device by inserting the screws.
Attach the screws until the screws reaches
the piston. Then, alternately little by little,
attach the screws at least another five mil-
limeters. The pressure is now unloaded.
In a procedure where both balancing
devices shall be removed, unload the
pressure of the other in the same way.
Action
DANGER
Make sure that all supplies for electrical
power, hydraulic pressure, and air pressure
are turned off.
© Copyright 2015-2018 ABB. All rights reserved.
Note
xx1500001971
M16x35
Apply Molykote on colored areas.
xx1500002303
Screws M16x80 fully threaded
xx1500002309
Screw M16x80 (2 pcs)
Note
Product manual - IRB 8700
3HAC052853-001 Revision: F