3 Maintenance
3.4.5. Oil change, gearbox, axis 4
2093HAC022033-001 Revision: K
© Copyright 2004-2011 ABB. All rights reserved.
3.4.5. Oil change, gearbox, axis 4
Different types of oil
The primary and secondary gear may require different types of oil, that must never be mixed!
If they are mixed, the gear must be rinsed according to section Flushing a contaminated
gearbox on page 231.
Location of gearbox
The axis 4 gearbox is located at the rear of the upper arm as shown in the figure below.
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A Upper arm housing
B Cover, axis 4 gearbox
C Oil plug, filling, secondary gear
D Oil plug, draining, secondary gear
E Oil plug, filling, primary gearbox (draining not shown in figure, located further down
on the motor flange)
F Label, specifies the type of oil in the secondary gear
G Label, specifies the type of oil in the primary gear
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