ABB IRB 260, Product Manual

Page: 112 / 268

4.2 General procedures
4.2.1 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
Note Art. no. Equipment, etc.
3HAC0207-1 Leakdown tester
- Leak detection spray
Procedure
Note Action
Finish the refitting procedure of the motor or gear in
question. 1
Art. no. is specified in Required
equipment on page 112 .
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.
2
Correct value: Apply compressed air and raise the pressure with
the knob until the correct value is shown on the
manometer. 3
0.2 - 0.25 bar (20 - 25 kPa)
Disconnect the compressed air supply. 4
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. Wait for approx. 8-10 minutes. No pressure loss may
be detected. 5
Was any pressure drop evident?
6
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.
7
When the leak has been localized, take the necessary
measures to correct the leak. 8
112 3HAC026048-001 Revision: E
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4 Repair
4.2.1 Performing a leak-down test