Preventative maintenance – Bendix Commercial Vehicle Systems BX2150 AIR COMP (BW1424) User Manual

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Inlet gasket 243430 is required between the inlet check valve
reed and the inlet cavity of new style heads, or between the
inlet check valve reed and the inlet adapter 297871 for old
style heads, as its thickness contributes to the minimum
reed travel required. The pin in the check valve seat must
align with the holes in the check valve, the inlet gasket and
enter the mating hole in the head or the inlet adapter. (Refer
to Figure 6)

CAUTION: If ICV is used with air dryer/aftercooler which
vents the discharge line during its purge cycle, a PR-4

valve (P/N 103976) is recommended to be installed in the
discharge line to minimize oil passing which can occur in
the combined use of an ICV and a vented discharge line.
See Bulletin No. PRO-08-13 for proper installation of the
PR-4

valve.

PREVENTATIVE 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.

AIR INDUCTION

One of the single most important aspects of compressor
preventive maintenance is the induction of clean air. The
type and interval of maintenance required will vary depending
upon the air induction system used.

The intervals listed under the headings below pertain to typical
highway and street operation. More frequent maintenance
will be required for operation in dusty or dirty environments.

POLYURETHANE SPONGE STRAINER

Every month, 150 operating hours or 5,000 miles, whichever
occurs first, 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 two months, 800 operating hours or 20,000 miles
whichever occurs first, 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. Make certain to replace the air
strainer gasket if the entire air strainer is removed from the
compressor intake.

INTAKE ADAPTER

When the engine air cleaner is replaced; Some compressors
are fitted with intake adapters which allow the compressor
intake to be connected to the engine air cleaner, turbo or
super-charger. 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 or engine air cleaner. Inspect the connecting
line for kinks and ruptures and replace it if necessary.

FIGURE 7

RD. HD. MACHINE SCREW

COVER

ASSEMBLY

SCREW

COVER

BAFFLE

STRAINER

SCREW

GASKET

BASE PLATE

FILTER

ELEMENT

BODY

BAFFLE

FIGURE 8

MOUNTING

BAFFLE

FILTER

ELEMENT

COVER

FIGURE 9 - COMPRESSOR INTAKE ADAPTER

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