ABB IRB 4400/60 Product Manual page 122

3 Maintenance
3.6.4 Oil change, gearbox axis 5 and 6 (all robot versions)
Continued
Draining oil
The procedure below details how to drain the oil from the wrist unit (axis 5 and 6).
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Filling oil
The procedure below details how to fill oil to the wrist unit (axis 5 and 6).
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122
Tip
When changing gearbox oil, first run the robot for a time to heat up the oil. Warm
oil drains quicker than cold oil.
WARNING
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
Move the upper arm to a horizontal position and turn
axis 4 to the calibration position.
Turn axis 4, 135°.
Remove the lower oil plug, draining at the rear of the
wrist.
Remove the other oil plug, draining.
Move axis 3 up -15° and let the oil run out for a
couple of minutes.
Turn axis 4 so that the oil plug, filling is facing
downwards.
Remove the oil plug, axis 5 to drain the oil.
Move axis 3 down to 0°.
Move axis 4 backwards and forwards a couple of
times to drain all the oil.
Clean and refit the both oil plugs, draining.
Note
The specified amount of oil is based on the total volume of the gearbox. When
changing the oil, the amount of refilled oil may differ from the specified amount,
depending on how much oil has previously been drained from the gearbox.
© Copyright 2004-2018 ABB. All rights reserved.
Info/Illustration
Shown in the figure Location
of oil plugs on page 121.
Capacity of oil collecting
vessel is specified in Re-
quired equipment on
page 121.
Shown in the figure Location
of oil plugs on page 121.
Product manual - IRB 4400
3HAC022032-001 Revision: Q