4 Repair
4.3.11. Replacement of Gearbox Unit 4
1453HAC030005-001 Revision: -
© Copyright 2006 ABB. All rights reserved.
Required equipment and References
Removal
Refitting
Equipment Spare Part No. Note
Gearbox Unit axis 4 Spare parts, Gear Unit axis 4
on page 205
Standard tools Standard toolkit on page 196.
Sealing rings Spare parts in the base on
page 214.
Locking liquid Loctite 243
References
Replacement of Telescopic Shaft on page 133
Replacement of base cover gasket on page 116
Calibration methods on page 172
Action Note
1. Remove the (12 pcs) M6 flange screws holding the
base cover.
Use standard tools. Described in
section Replacement of base
cover gasket on page 116
2. Disconnect the motor connectors, R3.FB4 and
R3.MP4.
3. Remove the Telescopic Shaft. Described in section
Replacement of Telescopic Shaft
on page 133.
4. Remove the 3x Hexagon socket head screw
(M6x25) with plain washer 6,4x12x1,6 steel A2F(B).
Shown in figure
5. Remove the Gearbox Unit axis 4.
6. Remove the Sealing ring w. dust lip.
Action Note
1. Refit a new Sealing ring, apply grease. See section Grease on sealings
on page 201.
2. Refit the axis 4 Gearbox Unit.
3. Refit the 3x Hexagon socket head screw (M6x25)
with plain washer 6,4x12x1,6 steel A2F(B).
Tightening Torque 9 Nm.
4. Refit the Telescopic Shaft. Described in section
Replacement of Telescopic Shaft
on page 133.
5. Reconnect the motor connectors, R3.FB4 and
R3.MP4.
6. Refit the (12 pcs) M6 screws holding the base cover. Use standard tools. Described in
section Replacement of base
cover gasket on page 116
7. Calibrate the robot. Described in section Calibration
methods on page 172.
Continued
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