3 Maintenance
3.4.5. Oil change, gearbox axis 5 and 6 (IRB 4400/L10 only)
109 3HAC022032-001 Revision: E
© Copyright 2004-2008 ABB. All rights reserved.
Draining oil
The procedure below details how to drain the oil from the wrist unit (axis 5 and 6), robot
version IRB 4400/L10.
When changing gearbox oil, first run the robot for a time to heat up the oil. Warm oil drains
quicker than cold oil.
Changing and draining gearbox oil may require handling hot oil of up to 90 °C! Make sure
that protective gear like goggles and gloves are always worn during this activity.
Also, be aware of possible pressure build up in gearbox! When opening the oil plug, there
may be pressure present in the gearbox, causing oil to spray from the opening!
Action Info/Illustration
1. Move the upper arm to a horizontal position and turn
axis 4 to the calibration position.
2. Remove the oil plug, draining in the wrist. Shown in the figure Location
of oil plugs on page 108.
3. Turn axis 4 to a position where the oil plug, draining
is faced downwards and drain the oil into an oil
collecting vessel.
Also remove the oil plug, filling, in order to use it as an
air inlet.
Shown in the figure Location
of oil plugs on page 108.
Capacity of vessel is
specified in Required
equipment on page 108.
4. Turn axis 4 another 90° to allow the remaining oil to
be drained.
5. Clean and refit the oil plug, draining.
Continued
Continues on next page
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