BENDIX SD-08-2414 manual Bulletins TCH-008-021 and TCH-008-022. Shorter

BENDIX® AD-IP®AIR DRYER TROUBLESHOOTING CHART

SYMPTOMS	CAUSE	REMEDY
2. Water and/or oil in	E. (Continued)	Air Compressor Size - Although the Bendix®
the supply or service		AD-IP®air dryer can be used in conjunction with
reservoir (continued).		larger compressors, it was designed primarily for
		units rated for up to 30 CFM. It is recommended
		that when using the AD-IP air dryer with a
		compressor which has a rated displacement
		exceeding 30 CFM that an authorized Bendix®
		parts outlet or Bendix marketing representative
		be contacted for assistance.
	F. Air compressor discharge	F. Restricted discharge line. See Appendix A, Table
	and/or air dryer inlet	A, column 1 & 2 for recommended sizes. If the
	temperature too high.	discharge line is restricted or more than 1/16”
		carbon build-up is found, replace the discharge line.
		Replace as necessary.
		Discharge Line Freeze-Up. The discharge line
		must maintain a constant slope down from the
		compressor to the air dryer inlet fitting to avoid low
		points where ice may form and block the flow. If,
		instead, ice blockages occur at the air dryer inlet,
		insulation may be added here, or if the inlet fitting is
		a typical 90° fitting, it may be changed to a straight
		or 45° fitting. For more information on how to help
		prevent discharge line freeze-ups, see Bendix
		Bulletins TCH-008-021 and TCH-008-022. Shorter
		discharge line lengths or insulation may be required
		in cold climates.
		Insufficient coolant flow through compressor.
		Inspect coolant line. Replace as necessary (Inside
		Diameter (I.D.) is 1/2” min.). Inspect the coolant
		lines for kinks and restrictions and fittings for
		restrictions. Replace as necessary. Verify coolant
		lines go from engine block to compressor and back
		to the water pump. Repair as necessary.
		Restricted air inlet (not enough air to compressor).
		Check compressor air inlet line for restrictions,
		brittleness, soft or sagging hose conditions etc.
		Repair as necessary. Inlet line size is 3/4 ID.
		Maximum restriction requirement for compressors
		is 25 inches of water. Check the engine air filter and
		service if necessary (if possible, check the air filter
		usage indicator).
		Poorly filtered inlet air (poor air quality to
		compressor). Check for leaking, damaged or
		malfunctioning compressor air inlet components
		(e.g. induction line, fittings, gaskets, filter bodies,
		etc.). Repair inlet components as needed.
		Note: Dirt ingestion will damage the compressor
		and is not covered under the warranty.
		If you found excessive oil present in the service
		reservoir and you did not find any issues above,
		the compressor may be passing oil.
		Replace the compressor. If still under warranty,
		follow the normal warranty process.

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