4 Repair
4.7.2. Service work on gearboxes, axes 3, 4, 5 and 6
3HAC026660-001 Revision: C218
© Copyright 2006-2008 ABB. All rights reserved.
4.7.2. Service work on gearboxes, axes 3, 4, 5 and 6
Gearboxes, replacement
The gearboxes of axes 3, 4, 5 and 6 are intended to run without requiring any repairs or
maintenance work. This implies that they must under no circumstances be opened or
serviced.
If the gearboxes require replacement:
• axes 3 and 4: the complete upper arm is to be replaced. This procedure is detailed in
section Replacement of complete upper arm on page 129.
• axes 5 and 6: the complete wrist unit is to be replaced. This procedure is detailed in
section Replacement of wrist unit on page 143.
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