Refilling quantity
CAUTION
The quantity of oil drained depends on the draining time and the oil
temperature. The refilling quantity is the quantity of oil that was drained
from the gear unit at the correct operating temperature and with the cor-
rect draining time. This oil quantity must be determined. Only this quan-
tity of oil may be used when refilling.
If less than 70 % of the specified oil quantity flows out, flush the gear
unit with the determined quantity of drained oil once, then pour in the
amount of oil that was drained. If less than 50% of the specified oil
quantity flows out (e.g. inclined installation), the flushing operation must
be repeated twice. During the flushing procedure, move the axis at jog
velocity throughout the entire axis range.
The oil quantities specified in the table correspond to the oil quantities
in the gear unit at first filling.
Precondition
• The gear unit is at operating temperature.
• The arm and in-line wrist are in horizontal position.
Work safety
CAUTION
High oil and surface temperatures after the robot has stopped op-
erating
If the oil change is carried out immediately after the robot has stopped
operating, the oil temperature and the surface temperature are liable to
be high. Touching them may result in burns.
• Wear protective gloves.
WARNING
Danger to life and limb due to unintended robot motions
Unintended robot motions may result in death, severe injuries and dam-
age to property.
• Secure the robot by pressing the EMERGENCY STOP device.
• Warn all persons concerned before starting to put it back into opera-
tion.
8.9.1.1 Draining the gear oil from A4
Procedure
1. Move the arm and in-line wrist into horizontal position
(>>> 8.9.1.1 "Draining the gear oil from A4" Page 218).
2. Place a receptacle under the oil drain hole and unscrew the M18x1.5
magnetic screw plug.
3. Screw in the M18x1.5 oil drain tube.
4. Remove the M18x1.5 magnetic screw plug for venting and catch the
oil as it drains out.
5. Measure the amount of oil drained and store or dispose of the used
oil in accordance with the pertinent regulations.
KR IONTEC
218/344 | www.kuka.com MA KR IONTEC V4 | Issued: 11.05.2021
Maintenance
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