ABB IRB 390 Product Manual page 242

5 Repair
5.6.1 Replacing the axis-1, axis 2 and axis-3 motor
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Action
Lift the motor and put it on the guide pins as close
as possible to its final position without pushing
the motor pinion into the gear.
To release the brakes, connect the 24 VDC power
supply.
Connect to R3.MP1/R3.MP2/R3.MP3-connector:
• + = pin 2
• - = pin 5
Use the rotation tool to rotate the pinion when
mating it into the gear.
Leave the rotation tool and 24 VDC power supply
connected for play adjustment.
Fit the attachment screws and washers. Tighten
by hand.
Remove the guide pins and fit the remaining two
screws and washers. Tighten by hand.
Do not tighten with a torque yet.
© Copyright 2020 - 2021 ABB. All rights reserved.
Note
24 VDC power supply
Rotation tool: 3HAB7887-1
Hex socket head cap screw: M8x25
8.8-A3F
Plain washer: 8.4x16x1.6 steel-A2F
Product manual - IRB 390
3HAC066566-001 Revision: B