cg-550/030/a/gt/hp maintenance & operating instructions - Field ...

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ServicingIf the motor is sluggish or inefficient try flushing with solvent* in well ventilated area.Disconnect the air line and muffler and add several teaspoons full of solvent* Rotate theshaft by hand in both directions for a few minutes, again connect the air line and applypressure slowly until there is no trace of solvent* in exhaust air. (Keep face away fromexhaust air). Check the muffler felts for grease, dirt, etc. If dirty, wash them in solvent.Replace the felts and connect the muffler. Re-lubricate the motor with a squirt of oil inthe chamber and bearings oilers.If the vanes need replacing, or foreign particles are present in motor chamber, anexperienced mechanic may remove the end plate opposite the drive shaft end. Don'tpry with a screw driver as it will dent the surface of the plate and body causing leaks. Apuller tool should be used which will remove the end plate while maintaining the positionof the shaft. New vanes should have the edge with corners cut on angle or the notchededge (if reversible) towards the bottom of the vane slot. New gaskets should be theproper thickness onion skin otherwise motor will operate inefficiently and waste air. Theend plates should be replaced carefully using an arbor press with a pusher acting onboth races of the bearing while supporting the opposite (drive) end of the shaft rigidly.This will eliminate brinelling of the bearings and misalignment of rotor.*Recommended solvent for air motors and lubricated pumps is Gast Flushing Solventpart #AH255, or any non toxic, non flammable industrial cleaning solvent.DO NOT USE KEROSENE.®
SPECIAL INSTRUCTIONSAIR OPERATED EQUIPMENTWhenever compressed air powered equipment is used, it is the air compressor which isthe primary motive force to drive the equipment. Whether the compressor is driven by adiesel or gas engine, or an electric motor is immaterial. The important factor is itscapacity to provide a sufficient QUANTITY of air expressed in terms of CUBIC FEETPER MINUTE at a specific PRESSURE, usually expressed in terms of POUNDS PERSQUARE INCH. Thus, compressors are usually rated in terms of X CFM at Y PSI. (Forexample, 250 CFM at 120 PSI) Occasionally, you may see a horsepower rating, but itis much more common for compressors to be rated as previously described.In any event, the capacity to do work is directly related to the VOLUME andPRESSURE of the compressed air supply. Air powered equipment is designed toaccomplish specific tasks and therefore, requires a specific MINIMUM VOLUME ofcompressed air at a specific PRESSURE.With any air powered equipment, it's perfectly acceptable to use a compressor with ahigher volumetric capacity than the equipment requires, since the equipment will onlyuse the amount of air that it needs; however, the stated pressure capacity of theequipment should not be exceeded by more than 10%. Excess pressure can beharmful to the seals of air motors and cylinders and will significantly shorten the servicelife of the equipment.Attempts to run pneumatically powered equipment on compressors of lower capacitythan required will likely yield disappointing results.RECOMMENDATIONSWhen using air powered equipment, some simple rules and procedures will help assurea successful job:1. Keep compressor properly serviced with adequate fuel and engine oil and keepcompressor oil at proper levels. Drain condensation from receiving tank beforestart-up.2. Keep hose runs between compressor and machine as short as practical.3. Use air hose that is rated for the pressure capacity of the compressor and ofsufficient diameter to transport the volume of air that the compressor is rated todeliver. (In other words, use a BIG hose!)4. Never use air supply hose for any other purpose, and alwaysblow the hose out before connecting to equipment at the start of a working shift.®
Page 1 and 2: CG-550/030/A/GT/HPMAINTENANCE & OPE
Page 4 and 5: TABLE OF CONTENTSSECTIONSUBJECT1. G
Page 6 and 7: CG-550/030/A/GT/HPGENERAL DESCRIPTI
Page 8 and 9: OPERATING INSTRUCTIONSGENERAL* * *
Page 10 and 11: SECTION 3GROUT SUGGESTIONS®
Page 12 and 13: MIXING AND PUMPING SUGGESTIONSNOTE:
Page 14 and 15: ADDITIONAL SUGGESTIONS“HOMEMADE
Page 16 and 17: U. S. Standard Sieve Numbers1003/8
Page 18 and 19: 14 151727A10 10A17A182122231923 3A
Page 20 and 21: SECTION 5GROUT PUMP INSTRUCTIONS®
Page 22 and 23: CG-030/A/HPCOMPONENT PARTS LISTREF.
Page 24 and 25: SERVICE GUIDEPROBLEM PROBABLE CAUSE
Page 26 and 27: EXPLANATION OF AIR CYLINDER TIMING
Page 28 and 29: SECTION 6AIR MOTOR INSTRUCTIONS®
Page 32: Recommendations For Air Operated Eq

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