Maintenance Schedule And Usage Guidelines - BENDIX BX2150 AIR COMP-BW1424- Manual

Table A: Maintenance Schedule and Usage Guidelines
Regularly scheduled maintenance is the single most important factor in maintaining the air brake charging system.
Vehicle Used for:
Low Air Use
Compressor with less than 15% duty
cycle
e.g. Line haul single trailer
w/o air suspension, air over
hydraulic brakes.
Compressor with up to 25% duty cycle
e.g. Line haul single trailer
with air suspension,
school bus.
High Air Use
Compressor with up to 25% duty cycle
e.g. Double/triple trailer, open
highway coach/RV, (most)
pick-up & delivery, yard or
terminal jockey, off-highway,
construction, loggers, concrete
mixer, dump truck, fire truck.
Compressor with up to 25% duty cycle
e.g. City transit bus, refuse,
bulk unloaders, low boys,
urban region coach, central
tire inflation.
Footnotes:
1 With increased air demand the air dryer cartridge needs to be replaced more often.
2 Use the drain valves to slowly drain all reservoirs to zero psi.
3 Allow the oil/water mixture to fully settle before measuring oil quantity.
4 To counter above normal temperatures at the air dryer inlet, (and resultant oil-vapor passing
upstream in the air system) replace the discharge line with one of a larger diameter and/
or longer length. This helps reduce the air's temperature. If sufficient cooling occurs, the
oil-vapor condenses and can be removed by the air dryer. Discharge line upgrades are not
covered under warranty. Note: To help prevent discharge line freeze-ups, shorter discharge
line lengths or insulation may be required in cold climates. (See Bendix Bulletins TCH-08-21
and TCH-08-22, included in Appendix B, for more information.)
5 For certain vehicles/applications, where turbo-charged inlet air is used, a smaller size
compressor may be permissible.
Column 1
Typical Discharge
Compressors
No. of Spec'd
Axles
I.D.
1/2 in.
5
For oil carry-over
or control
less
5/8 in.
1/2 in.
5
For oil carry-over
or
control
less
5/8 in.
1/2 in.
8
For oil carry-over
control
or
less
5/8 in.
5/8 in.
12
For oil carry-over
or
control
less
3/4 in.
Column 2 Column 3
Recom-
mended
Line Air Dryer
Cartridge
Replacement
Length
6 ft.
4 suggested
upgrades:
9 ft.
Every 3
Years
9 ft.
4 suggested
upgrades:
12 ft.
12 ft.
Every 2
Years
4
suggested
upgrades:
15 ft.
12 ft.
Every
Year
4 suggested
upgrades:
15 ft.
Column 4 Column 5
Recom- Acceptable
mended Reservoir
Reservoir Oil Contents
Drain at Regular
1 Schedule 2 Drain Interval
BASIC test
acceptable
range:
Recom-
3 oil units
mended
per month.
Every
See
Month -
appendix
Max of
every 90
days
For the
BASIC
Test Kit:
Order
Bendix
P/N
5013711
BASIC test
acceptable
range:
5 oil units
Every
per month.
Month
See
appendix
Note: Compressor and/or air dryer
upgrades are recommended in cases
where duty cycle is greater than the
normal range (for the examples
above).
For Bendix ® Tu-Flo ® 550 and 750
compressors, unloader service is
recommended every 250,000 miles.
3
A.
A.
17