SERVICE MANUAL TROUBLE SHOOTING THE CR BRAKEMASTER UNIT (Cont’d) SYMPTOM PROBABLE CAUSE REMEDY Does not cool air (initial 1.  Mounted in location where it Relocate unit. installation). cannot be cooled by ambient air. 2.  Mounted too near heat produc- Relocate unit. ing equipment or too near other heat dissipating equip- ment. 3.  Copper tubing from compressor Increase length of copper to inlet too short. tubing. Does not "unload" when com- 1.  UNL port of governor not con- Connect or repair line. pressor goes into stand-by nected to unloader port or mode. line broken. 2.  Components of unloader valve Rebuild unloader valve. worn. 3.  Ice formed in area of un- Shorten line (24" min.  allowable loader valve. length) and/or install heater. 4.  Heater inoperative. Replace heater or check electri- cal connections. Safety valve opens. 1.  Check valve in outlet stuck Clean outlet and replace check closed. valve assembly. 2.  Obstruction in air line beyond Remove obstruction. heat exchanger. 3.  Compressor governor valve Replace. defective. 4.  Safety valve defective. Replace. Water exhausted by unit con- 1.  Compressor rings defective. Rebuild or replace compressor. tains excessive oil and/or soot. No water exhausted during un- 1.  Insufficient water in ambient loading cycle. (inlet) air. 2.  Not cooling air sufficiently to Lengthen copper line from com- condense water. pressor to heat exchanger (36" max.  length allowable).  Relocate heat exchanger to area of greater ambient air flow. Compressed air was cooled by 1.  Covered with dirt or paint. Steam clean and/or remove paint. unit but no longer is cooled 2.  Deflector damaged or broken. Replace deflector assembly. properly. Water exhausted is brownish 1.  Broken or damaged deflector. Replace deflector assembly. or brown particles are ex- hausted. CTS-4079 - CHAPTER XIV - Page 22