Service Manual for Ring Compressors
Contents
1. et fy E N OX YY N NN Wey ai das A LAA ay AA AAAS A n MMi Ai HH gt a a Fe 3 On Ce T ess or LN A y pA Af Af i A C STEP MM5 Gently tap the oil seal into the end cover with oil seal tapping tool and fill in with grease Notice 1 Usea specified new oil seal 2 Be sure the oll seal is fadng the same direction as shown in the illustration 3 Fill in 2 3 of the volume of space A with the following specified grease as shown in the illustration STEP MM 7 And tighten screws and spring washers VFC100A P TT MF C40 P Multemp SRL grease STEP MM8 After finishing intermediate assembling dean the inside of the casing with doth brush and air VF C500A 111 IVF C904A Urea grease E ns OIL SEAL TAPPRING TOOL Ae OIL SEAL ENDCOVER g I BLOCK STEP MM 6 Set the end cover on the casing 5 ASSEMBLING COMPRESSOR UNIT STEP AC1 Remount all of the collar and bearing shims which you took off on the shaft When using a new impaler casing and or motor or if you have lost a part of shims STEP AC2 Measure depth A and width B as shown in the figure in steo AC 5 and apply bearing shims of approximately half the thickness of the difference between A and B Then mount key onto shaft STEP AC3 Set impeller straight on the shaft Rotate impeller slowly by hand making sure it does not come in contact with the casing STEP AC2. pin from the motor Shaft To prevent the impaler from moving insert a screwdriver between the blades of the impeller as shown STEP DC7 Remove bolts holding the motor in place STEP DC8 Push out the motor from the casing by puller whose two bolts can be placed in screw holes of the end cover bolt To avoid damaging the shaft end insert a disk or metal piece between the Shaft end and the tip of puller STEP DC4 Lift and pry the impeller off from the casing with two screwdrivers Exert equal force on both screwdrivers STEP DCQ9 Remove the motor from the casing carefully STEP DC 10 Pull the front bearing out from the casing by hand if this is not successful push it out from the back side of the casing with a socket and hammer using a straight and gentle mation jA STEP DC11 Tap the oil seal out from the end cover with socket and hammer Sea amp STEP DC 12 Now you have disassembled the compressor unit 2 DIASSEMBLING MOTOR UNIT STEP DM1 Remove screws holding fan the cover in place Before doing this mark positions between the fan cover and the motor frame for easier reassembling STEP DM 2 Pull the fan cover out of the motor STEP DM3 Take off the bolt with the motor fan STEP DM 4 Pull straight out and pry the fan cover off from the shaft with two screwdrivers Use puller for easier handling STEP DM5 You have removed the fan and fan cover STEP DM6 Pul
3. 4 After setting a pin retaining plate and nailed washer on the shaft tighten the bolt and calk the pin To prevent the impaler from moving use screwdriver in the same manner as it is used in the disassembling process i n STEP AC5 Measure the gap C and use the following equation to calculate gap D D A B C Make sure the difference between the gap C and D is less than 30 if not remove the impeller again and adjust thickness of the shims STEP AC6 After adjustment of the gap tighten the bolt securely and bend up an edge of the nailed washer to prevent the bolt from loosening as shown in the photo and figure STEP ACQ9 After assembling check to see if the motor rotates smoothly by turning the motor fan by hand BOLT NEILED WASH CALK SCREW DRIVER SHAFT IMPELLR STEP AC7 Put the casing cover on the casing i STEP AC8 Tighten the bolts to finish the whole assembling 10
4. FO e Front runners RING COMPRESSORS OTH SERIES amp 4TH SERIES SERVICE SEQUENCE This is a service manual for the maintenance and repair of VF C600A Ring Compressor This manual serves as a repair guide for our entire line of Ring Compressors because VF C600A is used as an archetype of our ring compressors Refer to manual NV YH 309 for part names and assembly diagrams Refrain from reusing of worn parts especially oil seals bearings and Silencers When ordering a part please soeafy moda No serial No on nameplate and the name and code No of the part CONTENTS HUDISASSEMBLING COMPRESSOR UNIT LITT 3 HUDISASSEMBLING MOTOR UNIT LHTITA 5 HUASSEMBLING MOTOR UNIT LLL 7 HUMOUNTING MOTOR ONTO CASING LIITT7 8 HUASSEMBLING COMPRESSOR UNIT LILI 10 PUJI ELECTRIC CORP OF AMERICA PARK 80 WEST PLAZA I SADDLA BROOK N J 07663 U S A TELEPHONE 201 712 0555 FAX 201 368 8258 1 DISASSEMBLING COMPRESSOR UNIT STEP DC1 STEP DC5 To check or replace the impeller ball bearings oil Remove a key on the shaft gently seal and or motor winding first remove bolts and casing cover from the casing STEP DC6 Remove screws holding end cover in place and pick up bearing shims on the shaft Be careful not to lose them aar psa STEP DC2 To loosen the bolt bend back nailed washer using a screwdriver and hammer STEP DC3 Remove the bolt and take off the nailed washer and retaining plate with
5. Shaft end STEP AM 3 Refer to the photo and illustration for a dose look at application of the spring washer into the bearing housing of the rear housing STEP AM6 Tighten the fixing bolt for the motor fan securely to avoid looseness SPRING WASHER STEP AM 7 Slide the fan cover onto the motor and tighten screws Be sure to line up the marks as mentioned earlier 4 MOUNTING MOTOR ONTO CASING STEP MM1 Mount the casing on the motor upright as shown Be sure not to damage the Inside of the oil seal by the edge and the key way of the Shaft NY STEP MM 2 Tap and fit hermetic seals of casing and motor Use plastic head hammer ye f STEP MM3 Tighten screws and spring washers securely STEP AM8 Now you have assembled motor the unit Go on to the next step to assemble the compressor unit Press the front bearing straight and gently into the bearing housing between the shaft and the casing x Notice l Use a speafied new bearing which is lubricated with specified grease 2 Codlar for pressing the the front bearing should have a flat end wide enough to press equally on both the outer and inner ring Dont use the rear bearing collar 3 Support the opposite end of the shaft with a Spedal supporting tool 4 Make sure that there is no gap between bearing and the surface A of the shaft V SUPPORTING TOOL f 4 1 gt JA 4 aki f A 1 eee ANNAN NY E
6. l the rotor shaft straight out of the stator Be careful to avoid damaging the stator winding STEP DM 7 Remove the rear housing by hammering on a screwdriver STEP DM8 When removing the rotor shaft and the rear housing be careful not to lose the spring washer STEP DM9 After disassembling the motor dean it with a doth brush and air then apply a few drops of machine oil to the machine worked surfaces ARBOR PRESS SHAFT BALL BERING le Fa BLOCKS TF ARBOR PRESS O 2a C none TABLE S STEP DM 10 Check the rear bearing If it is worn press it out of the shaft Never use a worn damaged or used bearing 3 ASSEMBLING MOTOR UNIT ARBOR PRESS STEP AM 1 OUTER RING Begin by mounting the rear bearing Press the INNER RING rear bearing straight and gently onto the shaft as SOW in the illustration and photo SHAFT x Notice 1 U se a spedfied new bearing and grease 3 Make sure that there is no gap between the 2 Keeo a dearance A between the outer ring of inner ring of bearing and the surface B of the bearing and the collar Shaft STEP AM 2 Fit and tap the rear housing onto the motor frame and tighten screws Be sure to line up the marks mentioned earlier STEP AM 4 Mount the rotor shaft back into the motor frame Be sure not to damage winding Piet st STEP AM5 Straight and gently tap the motor fan back onto the shaft while holding onto the opposite
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