ABB IRB 920 Product Manual page 981

7
8
Product manual - IRB 920
3HAC075721-001 Revision: C
Action
Tighten the screws if a heat sink, fan, or
metal sheet is loose.
Too hot gearbox oil may be caused by:
• Incorrect oil quality or level.
• The robot work cycle runs a specific
axis too hard. Investigate whether it
is possible to program small "cooling
periods" into the application.
• Overpressure created inside gearbox.
© Copyright 2022 ABB. All rights reserved.
7 Troubleshooting
7.3 Mechanical noise or dissonance
Information
Robots performing certain, extremely
heavy duty work cycles may be fitted with
vented oil plugs. These are not fitted to
normal duty robots, but can be pur-
chased from your local ABB representat-
ive.
Continued
981