Preventive Maintenance - BENDIX TU-FLO 501 AIR COMPRESSOR Manual

FIGURE 7 - POLYURETHANE SPONGE STRAINER
FIGURE 8 - PAPER AIR STRAINER DRY ELEMENT-PLEATED
FIGURE 9 - COMPRESSOR INTAKE ADAPTER

PREVENTIVE MAINTENANCE

Regularly scheduled maintenance is the single most
important factor in maintaining the air brake charging system.
Refer to Table A in the Troubleshooting section for a guide to
various considerations that must be given to the maintenance
of the compressor and other related charging system
components.
Every month, 300 operating hours or after each 10,000 miles,
depending on the operating conditions, experience and the
type of strainer used, service the air strainer.
POLYURETHANE SPONGE STRAINER EVERY
5000 MILES OR 150 OPERATING HOURS
Remove and wash all of the parts. The strainer element
should be cleaned or replaced. If the element is cleaned, it
should be washed in a commercial solvent or a detergent
and water solution. The element should be saturated in clean
engine oil, then squeezed dry before replacing it in the
strainer. Be sure to replace the air strainer gasket if the
entire air strainer is removed from the compressor intake.
DRY ELEMENT-PLEATED PAPER AIR
STRAINER
EVERY 20,000 MILES OR 800 OPERATING HOURS
Remove the spring clips from either side of mounting baffle
and remove the cover. Replace the pleated paper filter and
remount the cleaned cover making sure the filter is in
position. Be sure to replace the air strainer gasket if the
entire air strainer is removed from the compressor intake.
(NOTE: Some compressors are fitted with compressor
intake adapters which allow the compressor intake
to be connected to the engine air cleaner.)
In this case, the compressor receives a supply of clean air
from the engine air cleaner. When the engine air filter is
changed, the compressor intake adapter should be checked.
If it is loose, remove the intake adapter, clean the strainer
plate, if applicable, and replace the intake adapter gasket,
and reinstall the adapter securely. Check line connections
both at the compressor intake adapter and at the engine air
cleaner. Inspect the connecting line for ruptures and replace
it if necessary.
EVERY 6 MONTHS, 1800 OPERATING HOURS
OR AFTER EACH 50,000 MILES
Remove the discharge head fittings and inspect the
compressor discharge port and discharge line for excessive
carbon deposits. If excessive buildup is noted in either, the
discharge line must be cleaned or replaced and the
compressor checked more thoroughly, paying special
attention to the air induction system, oil supply and return
system, and proper cooling. If necessary, repair or replace
the compressor. Check for proper belt and pulley alignment
and belt tension. Adjust if necessary, paying special
attention not to over tighten the belt tension. Check for noisy
compressor operation, which could indicate a worn drive
gear coupling or a loose pulley. Adjust and/or replace as
necessary. Check all compressor mounting bolts and
retighten evenly if necessary. Check for leakage and proper
unloader mechanism operation. Replace if defective in any
way.
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