Symptom: | What it may indicate: | What you should do: |
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4.0Oil in Supply or Service Reservoir*
(air dryer installed) (continued)
Other (cont.)
(i)Poorly filtered inlet air (poor air quality to compressor).
Inspect the engine air cleaner.
ðCheck for leaking, damaged or defective compressor air inlet components (e.g. induction line, fittings, gaskets, filter bodies, etc.). Repair inlet components as needed. Note: Dirt ingestion will damage compressor and is not covered under
warranty.
(j)Governor malfunction or setting.
(k)Compressor malfunction.
Crankcase Flooding
Consider installing a compressor bottom drain kit (where available) in cases of chronic oil passing where all other operating conditions have been investigated. Bendix compressors are designed to have a 'dry' sump and the presence of excess oil in the crankcase can lead to oil carryover.
ðGo to Test 4 on page 30.
ðIf you found excessive oil present in the service reservoir in step 4.0 (b) above and you did not find any issues in steps 4.0 (c) through 4.0 (j) above, the compressor may be passing oil.
Replace compressor. If still under warranty, follow normal warranty process. Note: After replacing a compressor, residual oil may take a considerable period of time to be flushed from the air brake system.
*If a maintained Bendix® PuraGuard® system filter or Bendix® PuraGuard® QC™ oil coalescing filter is installed, call
5.0Oil present at valves (e.g. at exhaust, or seen during servicing).
Air brake system valves are required to tolerate a light coating of oil.
ðA small amount of oil does not affect SAE J2024** compliant valves.
ðCheck that regular maintenance is being performed and that the amount of oil in the air tanks (reservoirs) is within the acceptable range shown on the Bendix® BASIC test cup (see also column 5 of Table A on page 18). Return the vehicle to service.
For
**SAE J2024 outlines tests all air brake system pneumatic components need to be able to pass, including minimum levels of tolerance to contamination.
Genuine
Bendix valves are all SAE J2024 compliant.
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