ABB IRB 6600 - 175/2.55 User Manual page 655

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 16246-1
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 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 neces-
sary 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
Note/Illustration
Art. no. specified above!
Recommended value: 0.2 -
0.25 bar (20 - 25 kPa)
If the compressed air is signif-
icantly 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!
21