At The Valves (5.0) - BENDIX TU-FLO 501 AIR COMPRESSOR Manual

Symptom:
4.0 Oil in Supply
or Service
Reservoir*
(air dryer installed)
(continued)
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.
*If a maintained Bendix
filter is installed, call 1-800-AIR-BRAKE (1-800-247-2725) and speak to a Tech Team
member.
5.0 Oil present at
valves (e.g. at
exhaust, or seen
during servicing).
20
What it may indicate:
Other (cont.)
(i) Poorly filtered inlet air (poor air
quality to compressor).
(j) Governor malfunction or setting.
(k) Compressor malfunction.
® PuraGuard ® system filter or Bendix
Air brake system valves are required
to tolerate a light coating of oil.
What you should do:
ð Check 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.
Inspect the
engine air
cleaner.
ð Go to Test 4 on page 27.
ð If 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.
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.
® PuraGuard ® QC
ð A small amount of oil does not affect SAE
J2024** compliant valves.
ð Check 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 15). Return the vehicle to
service.
For oil-sensitive systems, see page 14.
** 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.
™ oil coalescing
If still under
®