ABB IRB 6600 - 175/2.55 User Manual page 437

2.1.6 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 equip-
ment
Equipment, etc.
Leakdown tester
Leak detection spray
Procedure
Step
3HAC 16247-1
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 pres-
sure 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.
A
2 Reference information
2.1.6 Performing a leak-down test
Spare part no. Art. no.
3HAC 0207-1
Note/Illustration
Art. no. 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. specified above!
Note
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