NoteAction
DANGER
Turn off all:
• electric power supply to the robot
• hydraulic pressure supply to the robot
• air pressure supply to the robot
Before entering the robot working area.
3
This is a precaution to reduce the
temperature dependency of the
measurement.
Make sure that the oil temperature is +25°C ±10°C.4
xx1300000244
Open the oil plug, filling and inspection.5
Turn axis 6 so that the oil plug, draining faces up-
wards.
6
This is a precaution to avoid vacu-
um effects by allowing air to enter
at the top of the gearbox.
Note
If equipment that covers the oil
plug, draining is fitted on the robot
so that the oil plug cannot be
opened, then this step can be
skipped.
Open the oil plug, draining.7
Slowly turn axis 4, while adjusting axis 6 so that the
oil plug, draining always faces upwards. Turn axis
4 until the axis-4 angle reads -45° to -55°.
8
xx1400002786
A Oil plug hole
B Required oil level
C Gearbox oil
Inspect the oil level in the hole for the oil plug, filling
and inspection.
The oil should reach all the way up to the external
edge of the thread for the oil plug, filling and inspec-
tion.
Note
If the oil plug, draining is not opened, then use a
clean, narrow object, for example an oil stick or a
cable tie, to gently poke the oil surface. This will
avoid surface tension from stopping air to enter into
the gearbox.
9
Continues on next page
132 Product manual - IRB 6620
3HAC027151-001 Revision: T
© Copyright 2006-2018 ABB. All rights reserved.
3 Maintenance
3.3.6 Inspecting the oil level in axis-6 gearbox
Continued
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