ABB IRB 460 Series Product Manual page 333

Preparations before removing the axis 3 gearbox
Use this procedure to do the necessary preparations before removing the axis 3
gearbox.
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2
3
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5
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Removing the axis 3 gearbox
Use this procedure to remove the axis 3 gearbox.
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2
3
Product manual - IRB 460
3HAC039842-001 Revision: P
Note
Do not replace both gearboxes at the same time, unless the complete arm system
is already removed!
Action
Decide which calibration routine to use, and
take actions accordingly prior to beginning
the repair procedure.
Drain the gearbox from oil.
Note
Time-consuming activity!
Jog axis 2 to 0 degrees and axis 3 to max +
degrees.
Release the brakes on axis 3 in order to let
the parallel arm rest on the damper.
Disassemble the lower end of the parallel rod
(alternately remove the complete parallel
rod).
This is done in order to be able to move the
parallel arm in the continued removal pro-
cess.
Jog axis 3 (the parallel arm) to max - degrees.
Release the brakes on axis 3 in order to let
the parallel arm rest on the damper.
Jog axis 2 carefully to about +50 degrees.
NOTE! Check that the upper arm is moved
forwards during jogging.
Let the tilthouse rest against something rigid
that can take the weight of the upper arm.
Action
Unscrew as many attachment screws that is
possible to remove in the parallel arm at this
point.
Jog axis 3 (the parallel arm) to max + de-
grees.
DANGER
Turn off all electric power, hydraulic and
pneumatic pressure supplies to the robot!
© Copyright 2012-2018 ABB. All rights reserved.
4.6.3 Replacing the axis 3 gearbox
Note
Draining, axes 2 and 3 on page 128
See Replacing parallel rod on page
Note
Continues on next page
4 Repair
Continued
257.
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