Appendix A continued: Information about the BASIC Test Kit (Bendix P/N 5013711)
Filling in the Checklist for the Bendix® Air System Inspection Cup (BASIC) Test
Note: Follow all standard safety precautions. For vehicles using a desiccant air dryer.
The Service Writer fills out these fields with information gained from the customer
Number of Days Since Air Tanks Were Last Drained: ________ Date: ___________Vehicle #: ____________
Engine SN __________________________ Vehicle Used for: _______________Typical Load:________ (lbs.)
No. of Axles: ____ (tractor) ____ (trailer) No. of Lift Axles: ____ Technician’s Name: ____________________
Customer’s Complaint (Please check all that apply)
Checklist for Technician
Have you confirmed complaint?
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| “Relay valve q leaks oil / q malfunctions” | q no q yes* | The Technician | |||||||||||||||||
The Service Writer |
| “Dash valve | q | leaks oil / | q | . . . . . . .malfunctions” | q | no | q | yes* |
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| q “Air dryer leaks oil” | q no q yes* | any of the | ||||||||||||||||||
also checks off any | |||||||||||||||||||||
q | . . . . . . . . . . . . . . . . . . . .“Governor malfunction” | q | no | q | yes* |
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complaints that the |
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q “Oil in gladhands” | q no q yes* | ||||||||||||||||||||
can be confirmed. | |||||||||||||||||||||
customer makes to | how much oil did you find? ________________________________ | ||||||||||||||||||||
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help the Technician | q | . . . . . . . . . . .“Oil on ground or vehicle exterior” | q | no | q | yes* |
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in investigating. |
| amount described: ______________________________________ |
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| replaces every: ______________ q miles, q kms, or q months | * Note: A confirmed com- | ||||||||||||||||||
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| q | “Oil in air tanks” amount described:_______________________ |
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| plaint above does NOT mean | |
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| We will measure amount currently found when we get to step B of the test. | |||||||||||||||||||
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| that the compressor must be | |||||||||||||||||||
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| q “Excessive engine oil loss” amount described: ______________ | |||||||||||||||||||
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| Is the engine leaking oil? | q no q yes* | The full BASIC test below will | |||||||||||||||||
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| Is the compressor leaking oil? | q no q yes* | investigate the facts. | |||||||||||||||||
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q Other complaint:
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q No customer complaint.
BASIC test starts here: | STEP A - Select one: | The Technician selects the air use |
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| category for the vehicle. This |
q This is a low air use vehicle: Line haul (single trailer) with 5 or less axles, or | decided which of the two accep- | ||
q This is a high air use vehicle: Garbage truck, transit bus, bulk unloader, or | |||
tance lines on the cup will be used | |||
line haul with 6 or more axles. | Then go to Step B. | ||
for the test below. | |||
STEP B - Measure the Charging System Contents | For an accurate test, the | ||
1. | Park and chock vehicle on level ground. Drain the air system by | ||
contents of all the air tanks on | |||
| pumping the service brakes. | ||
| the vehicle should be used. | ||
2. | Completely drain ALL the air tanks into a single BASIC cup. | ||
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3.If there is less than one unit of contents total, end the test now and
return the vehicle to service. Vehicle passes. |
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| Note for returning vehicles that are being | |
4. If more than one oil unit of water (or a cloudy emulsion mixture) | ||||
retested after a water/cloudy emulsion | ||||
is found: |
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| mixture was found last time and the air | ||
(a) Change the vehicle’s air dryer cartridge |
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Oil | dryer cartridge replaced: If more than one | |||
- see Footnote 1, | ||||
Units | oil unit of water or a cloudy emulsion mixture | |||
(b) Conduct the 4 minute leakage test (Step D), | ||||
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| is found again, stop the BASIC test and | ||
(c) STOP the inspection, and check the vehicle |
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| consult the air dryer's Service Data sheet | ||
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again after 30 days - see Footnote 2. STOP |
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| troubleshooting section. | ||
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+ CK.
Otherwise, go to Step C.
Footnote 1: 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.
Footnote 2: 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
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