ABB IRB 5720 Product Manual page 152

4 Maintenance
4.4.2 Changing the oil in axis-1 gearbox
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Action
Open the valve (A) slowly to reduce built-
up pressure slowly.
Check the oil level by reading the markings
(B) on the oil level gauge.
Required oil level is: at level measurement
mark 57 on tool ± 5 mm.
Drain or fill more oil, if required.
Tip
If oil is visible at the level gauge but does
not reach to the marking, the amount of oil
to be filled is maximum 5 cl.
CAUTION
The oil level sinks when the oil fills all cav-
ities in the gearbox. Wait until the oil stops
sinking, before measuring the oil level.
Remove the oil level gauge.
Remove the ventilating valve from the up-
per oil nipple.
Turn on the power to the robot and let axis
1 move for approximately 5 minutes.
Tip
This is done to eliminate any air bubbles
in the oil.
Let the manipulator stand still 1 hour.
DANGER
Turn off all:
• electric power supply
• hydraulic pressure supply
• air pressure supply
to the robot, before entering the safe-
guarded space.
Remove the protective cap and install the
ventilating valve enclosed with the oil level
gauge.
Note
The venting hole is opened to let out air
during the filling process.
© Copyright 2022 ABB. All rights reserved.
Note
xx2100002102
A Valve in open position
B Level measurement marks
xx1700000349
Product manual - IRB 5720
3HAC079195-001 Revision: A