ABB M2000 Product Manual page 203

1.8. Performing a leak-down test
General
After refitting any motor and any 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
Step
3HAC023297-001 Revision: A
Action
1. Finish the refitting procedure of the motor or gear in
question.
2. Remove the topmost oil plug on the gear in question,
and replace it with the leakdown tester .
Adapters may be required, which are included in the
leakdown tester kit.
3. Apply compressed air, and raise the pressure with the
knob until the correct value is shown on the
manometer.
4. Disconnect the compressed air supply.
5. Wait for approx. 8-10 minutes. No pressure loss must
be detected.
6. Was any pressure drop evident?
Localize the leak as detailed below.
Remove the leakdown tester, and refit the oil plug.
The test is complete.
7. Spray suspected leak areas with leak detection
spray .
Bubbles indicate a leak.
8. When the leak has been localized: take the
necessary measures to correct the leak.
1 Reference information
1.8. Performing a leak-down test
Art. no.
3HAC 0207-1
-
Note/Illustration
Art. no. is specified above!
Recommended value: 0.2 -
0.25 bar (20 - 25 kPa)
If the compressed air is
significantly colder or
warmer than the gearbox to
be tested, a slight pressure
increase or decrease
respectively may occur. This
is quite normal.
Art. no. is specified above!
Note
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