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Fi. DAILY MAINTENANCE <br /> Hoffman"T"Series compressors shall be inspected forsigns of excessive amounts of <br /> 'rt, water or debris in, on, or around machine. If this condition exists, correction <br /> ion should be taken. <br /> CAUTION: Vacuum cleaning or material handling systems should never he used to pick- <br /> up water or liquids of any kind without the use of a Hoffman liquid separator rnanufac- <br /> ture'd of the Droller n►aterial and sized for the application. <br /> VIII. TROUBLE SIIOOTINC <br /> —TROUBLE" "PROBABLE CAUSE" "CORRECTION" <br /> VIBRATION Olt NOISE 1. Improper coupling aligniiient. 1&2. Follow base installation pro- <br /> 2. Foundation nut flat. cedures (1V). <br /> 3. Defective or worry ball bearing. 3. A worn or defective bearing <br /> should be replaced with a new <br /> one promptly to avoid further <br /> damage to the unit. <br /> SURGE---A breathing or pulsating 1. Cornpressor operating under 1. Increasing the volume flow <br /> t discharge: noise. light or no load may cause cuff iciently should eliminate <br /> "surge". surge. <br /> 2. Anti-surge valve not operating. 2. Adjust anti-surge valve to <br /> eliminate surge. <br /> LOW PRESSURE 1. Wrong rotation. Incorrect 1. flotation can be corrected by an <br /> jrotatiun will result it) drastically experienced Electrician by <br /> reduces/ performance. reversing the wiring to proper <br /> 2. 1-hie:leakage in pipe connections, direction as indicated by rotation <br /> sleeves, valves, fittings, etc, arrows on unit. <br /> 3. Dirty filter will restrict the 2. Make certain that no leaks exist <br /> volume flow through the systern. is the systern. <br /> 4. Blocked or brokers line(s). 3. Check all separator filters, <br /> screens, etc. Clean and/or <br /> replace. <br />' 4. Inspect piping for possible <br /> broken line(s). Check shut-off <br /> valves in the system to insure <br />' they are in the open position. <br /> 110T MOTOR 1. Overload caused by excessive 1. Unit should not be operated with <br /> volume flow through the unit. inlet wide open. Sea[off or <br /> Inlet to compressor in wide:- connect to system. <br /> open condition. `?. Check wiring to be sure that <br /> 2. Wrung electrical hook-up. Motor motor leads are connected in <br /> name plate data must coincide accordance with wiring diagram <br /> with voltage, hertz and phase shown on motor name plate. <br /> available at the installation Check electrical voltage to <br /> site. motor. Be sure amperage sloes <br /> nut exceed the name plate data.. <br /> 1 <br /> f 7 <br />