Info/IllustrationActionStep
xx0300000173
Place the new gearbox unit on a level sur-
face and support it at position A, according
to the figure on the right.
Make sure the unit is stable and rests secur-
ily on the surface, including the weight of
the base that is to be refitted.
4
Part no. is specified in Required
equipment on page 247
B: Approximately 200mm (IRB 4400
models)
Shown in figure Location of gearbox
unit on page 247
Refit the sealing to the gearbox unit.
Replace it if damaged.
5
Part no. is specified in Required
equipment on page 247
Raise the base and fit it to the gearbox unit.6
Align the hole pattern of the base to the
gearboxes. Turn the gear if necessary by
the motor pinion, axis 1.
Shown in figure Location of gearbox
unit on page 247
Refit the base with the attachment screws
and washers, gearbox unit.
7
Attachment: 14 pcs, M16x80-12.9
UNBRAKO.
Tightening torque: 260 Nm.
Reused screws may be used, provid-
ing they are lubricated as detailed in
Screw joints in the Product manual,
reference information before fitting.
Shown in the figure Location of gear-
box unit on page 247
Refit the bottom plate with its attachment
screws.
8
See section Removal, gearbox unit on
page 248
Strap the gearbox unit as in the removal in-
struction
9
Lift the gearbox unit together with the base
and use the hoisting block to tip the com-
plete assembly backward by 90°, into nor-
mal mounting position.
10
Refit the robot to the foundation.11
Detailed in section Replacement of
complete arm system on page 156
Refit the complete arm system.12
Continues on next page
Product manual - IRB 4400 251
3HAC022032-001 Revision: Q
© Copyright 2004-2018 ABB. All rights reserved.
4 Repair
4.8.1 Replacement of gearbox unit, axes 1-2-3
Continued
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