ABB IRB 4600 Foundry Prime Product Manual page 274

4 Repair
4.4.1 Replacing the complete upper arm
Continued
Refitting the complete upper arm
Use this procedure to refit the complete upper arm.
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274
Action
DANGER
Turn off all:
• electric power supply
• hydraulic pressure supply
to the robot, before entering the robot
working area.
Clean the joints that have been opened. See
Cut the paint or surface on the robot before
replacing parts on page 201
Note
Do not remove the attachment screws se-
curing the gearbox axis 3 to the armhouse!
CAUTION
The weight of the complete upper arm (in-
cluding the wrist) is 140 kg
All lifting accessories used must be sized
accordingly.
Clean all assembly surfaces.
Attach the lifting accessories to the upper
arm.
Fit guide pins to the upper arm.
Lift the upper arm to the robot using an
overhead crane.
Release the brakes of the axis 3 motor.
Refit the upper arm to the lower arm with
its attachment screws.
Note
Use new attachment screws!
It may be necessary to turn the gear by ro-
tating the motor pinion with a rotation tool,
motor beneath the motor cover.
© Copyright 2013-2018 ABB. All rights reserved.
Note
See Attaching the lifting accessories to
the upper arm on page 272.
Specified in Required equipment on
page 267.
See the figure in:
• Location of the complete upper arm
on page 267
Tightening torque :
• 35 Nm
Product manual - IRB 4600 Foundry Prime
3HAC040585-001 Revision: M