Performing A Leak-Down Test - ABB IRB 1400 Product Manual

8 Reference information, IRB 1400

8.0.8 Performing a leak-down test

8.0.8 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 equip-
ment
Equipment, etc.
Leakdown tester
Leak detection spray
Procedure
Step
156
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 manom-
eter.
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.
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 sig-
nificantly 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!
3HAC021111-001 Revision: B
Note