ABB Robotics IRB 6790 Product Manual page 512

4 Repair
4.8.1 Replacing the axis-1 gearbox
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Action
Unscrew the attachment screws and
washers.
Use a bits extender to reach the screws.
Fit guide pins in opposite holes.
CAUTION
Whenever parting/mating motor and gear-
box, the gears may be damaged if excess-
ive force is used.
If needed, use removal tools to help re-
move the motor.
Use caution and lift the motor straight up
to get the pinion parted from the gear.
Disconnect the 24 VDC power supply.
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Note
Bits extender: 3HAC12342-1
xx1200001071
Guide pin, M12x150: 3HAC13056-2
Always use guide pins in pairs.
Removal tool M12: 3HAC057339-002
Always use removal tools in pairs.
Lifting accessory (chain): 3HAC15556-1
Lifting accessory, motor: 3HAC14459-1.
xx1200001072
Product manual - IRB 6790
3HAC063331-001 Revision: B