4 Repair
4.7.4 Replacement of gearbox, axis 4
4.7.4 Replacement of gearbox, axis 4
Location of gearbox
The axis 4 gearbox is located at the rear of the upper arm as shown in the figure
below.
A more detailed view of the component and its position may be found in chapter
Exploded views on page
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449.
Upper arm housing
Gearbox, axis 4
Cover, axis 4 gearbox
Attachment screws, cover axis 4
Oil plug, filling, secondary gearbox
Oil plug, draining, secondary gearbox
Gear, Z3
Gear attachment screws
Motor, axis 4
Motor flange
Oil plug, filling, primary gearbox (draining not shown in figure)
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3HAC022033-001 Revision: M