NoteAction
CAUTION
The gearbox weighs 23 kg.
All lifting accessories used must be sized
accordingly!
2
Clean all assembly surfaces.3
Remove any painting or other contamination
from the assembly surfaces, with a knife.
See the figure in:
• Location of gearbox axis 3 on
page 311
Apply some grease on the o-ring before fit-
ting it to the gearbox.
4
Always use guide pins in pairs!Fit two guide pins in two opposite screw
holes in the upper arm.
5
Remove the arm house cover.6
Attach the rotation tool on the axis-3 motor.7
Release the brakes of the axis 3 motor.8
Lift the gearbox onto the guide pins.9
Note
Whenever parting/mating motor and gear-
box, the gears may be damaged if excessive
force is used!
10
Article number for the rotation tool is
specified in Required equipment on
page 312.
Slide the gearbox into position while rotating
the motor pinion to find the mating position.
Use a rotation tool.
Tip
Two persons are required for this step since
the upper arm is hanging freely in the air.
One person needs to hold the upper arm
still while the other fits the gearbox into the
upper arm.
11
Rotate the motor pinion and slide the gear-
box into position.
12
See the figure in:
• Location of gearbox axis 3 on
page 311
Tightening torque: 35 Nm.
Secure the gearbox with its attachment
screws and washers.
13
Remove the guide pins and replace them
with the remaining attachment screws.
14
See Performing a leak-down test on
page 190.
Perform a leak-down test.15
Specified in Required equipment on
page 312.
Fit guide pins in the upper arm.16
Move the upper arm to its mounting posi-
tion.
17
(With the brakes of the axis 3 motor still re-
leased.)
Continues on next page
316 3HAC033453-001 Revision: H
© Copyright 2009-2013 ABB. All rights reserved.
4 Repair
4.8.3 Replacing gearbox axis 3
Continued
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