35
A-16
Drain contents of
ALL
air
tanks into Bendix
®
Basic
™
cup
Bendix
®
Air System Inspection Cup
(BASIC
™
) Test Information
Appendix B: Information about the BASIC
™
Test Kit (Bendix P/N 5013711)
*
If the number of days since the air tanks were drained is unknown -
use the 30 day line.
**
Note: Typical air dryer cartridge replacement schedule is every 3 yrs/
300K miles for low air use vehicles and every year/100K miles for high
air use vehicles.
***
To get an accurate reading for the amount of oil collected during a 30
day period, ask the customer not to drain the air tanks before returning.
(Note that 30-90 days is the recommended air tank drain schedule for
vehicles equipped with a Bendix air dryer that is properly maintained.)
If, in cold weather conditions, the 30 day air tank drain schedule is longer
than the customer's usual draining interval, the customer must determine,
based on their experience with the vehicle, whether to participate now, or
wait for warmer weather. See the cold weather tips in Bulletins TCH-008-
021 and TCH-008-022 (included on pages A-19-21 of this document).
****Note: After replacing a compressor, residual oil may take a
considerable period of time to be flushed from the air brake system.
Replace the Compressor. If under warranty, follow standard
procedures.
If, after a compressor was already replaced, the vehicle fails the
BASIC
™
test again, do not replace the compressor**** - use the
Advanced Troubleshooting Guide to investigate the cause(s).
