Performing A Leak-Down Test - ABB IRB 140 Product Manual

8.8 Performing a leak-down test

General
After refitting any motor and gearbox, the integrity of all seals enclosing the gearbox
oil must be tested. This is done in a leak-down test.
Required equipment
Equipment, etc.
Leakdown tester
Leak detection spray
Procedure
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3HAC027400-001 Revision: K
Action
Finish the refitting procedure of the motor or gear in
question.
Remove the topmost oil plug on the gear in question
and replace it with the leakdown tester.
Adapters, which are included in the leakdown tester
kit, may be required.
Apply compressed air and raise the pressure with
the knob until the correct value is shown on the
manometer.
Disconnect the compressed air supply.
Wait for approx. 8-10 minutes. No pressure loss may
be detected.
Was any pressure drop evident?
Localize the leak as detailed below.
Remove the leakdown tester and refit the oil plug.
The test is complete.
Spray suspected leak areas with leak detection spray.
Bubbles indicate a leak.
When the leak has been localized, take the necessary
measures to correct the leak.
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8 Reference information
8.8 Performing a leak-down test
Art. no.
3HAC0207-1
-
Note
Art. no. is specified in
equipment on page
Correct value:
0.2 - 0.25 bar (20 - 25 kPa)
If the compressed air is signific-
antly colder or warmer than the
gearbox to be tested, a slight
pressure increase or decrease
may occur. This is quite normal.
Note
Required
217.
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