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Model QRNG 350
Model QRNG 350
Model QRNG 350
Model QRNG 350
Model QRNG 350
This manual contains important safety information and must be made
available to all personnel who operate and/or maintain this product.
Carefully read this manual before attempting to operate or perform
maintenance on this compressor.
Fill Out & Return Warranty Registration Card Located Inside
® ® ® ® ®
Q R N G
Q R N G
Q R N G
Series
Series
Series
Q R N G
Q R N G
Series
Series
Parts Manual
Record of Change 104
Manual No. 50163-104
February 2008 Edition

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Summary of Contents for Quincy Compressor QRNG Series

  • Page 1 ® ® ® ® ® Q R N G Q R N G Q R N G Series Series Series Q R N G Q R N G Series Series Model QRNG 350 Model QRNG 350 Model QRNG 350 Model QRNG 350 Model QRNG 350 Parts Manual Record of Change 104...
  • Page 3: Table Of Contents

    Head unloader piping was modified. Gasket Set ............18 Quin-Cip Lubricant ..........18 "O" Ring Kit ............18 CAUTION ! Decals ..............18 Follow all safety precautions outlined in the QRNG Series Crankcase Lubricant Capacity ......18 instruction manual. ORDERING WARNING ! REPLACEMENT PARTS Do not operate this compressor without a totally enclosed belt guard or any other required safety equipment.
  • Page 4: Crankshaft Group

    1/2 1466 taper key N.S.S. = Not Sold Separate @ Indicates torque value (dry threads) Note: For reversal of compressor rotation refer to QRNG instruction manual. QRNG 350 Quincy Compressor 50163-104, February 2008 3501 Wismann Lane, Quincy IL - 62305-3116...
  • Page 5: Crankcase Group

    Install seal as shown if positive crankcase pressure exists (factory standard installation). Reverse the seal if negative crankcase pressure exists. Apply pipe sealant to this pin during installation. QRNG 350 Quincy Compressor 50163-104, February 2008 3501 Wismann Lane, Quincy IL - 62305-3116...
  • Page 6 BEARING CARRIER GROUP 112042-001 1.11 1.12 1.13 1.14 1.15 1.10 1.10 QRNG 350 Quincy Compressor 50163-104, February 2008 3501 Wismann Lane, Quincy IL - 62305-3116...
  • Page 7: Bearing Carrier Group

    @ Indicates torque value (dry threads). Tighten multiple bolts, capscrews & hex nuts in a criss-cross or alternating pattern. Bring each fastener to the recommended torque specification in even increments. § Install with Teflon ® tape QRNG 350 Quincy Compressor 50163-104, February 2008 3501 Wismann Lane, Quincy IL - 62305-3116...
  • Page 8: Low Pressure

    CONNECTING ROD & PISTON GROUP 112050-002 (low pressure) Be sure to stagger ring gaps ! QRNG 350 Quincy Compressor 50163-104, February 2008 3501 Wismann Lane, Quincy IL - 62305-3116...
  • Page 9 @ Indicates torque value (dry threads). Tighten multiple bolts, capscrews & hex nuts in a criss-cross or alternating pattern. Bring each fastener to the recommended torque specification in even increments. * One pair required for each connecting rod assembly. QRNG 350 Quincy Compressor 50163-104, February 2008 3501 Wismann Lane, Quincy IL - 62305-3116...
  • Page 10: High Pressure

    CONNECTING ROD & PISTON GROUP 112055-001 (high pressure) GROOVE Be sure to stagger ring gaps ! SECOND GROOVE THIRD GROOVE BOTTOM GROOVE QRNG 350 Quincy Compressor 50163-104, February 2008 3501 Wismann Lane, Quincy IL - 62305-3116...
  • Page 11 @ Indicates torque value (dry threads). Tighten multiple bolts, capscrews & hex nuts in a criss-cross or alternating pattern. Bring each fastener to the recommended torque specification in even increments. * One pair required for each connecting rod assembly. QRNG 350 Quincy Compressor 50163-104, February 2008 3501 Wismann Lane, Quincy IL - 62305-3116...
  • Page 16: Suction Valve Assembly

    SUCTION VALVE ASSEMBLY 7749X1 QRNG 350 Quincy Compressor 50163-104, February 2008 3501 Wismann Lane, Quincy IL - 62305-3116...
  • Page 17: Discharge Valve Assembly

    DISCHARGE VALVE ASSEMBLY 7750X1 QRNG 350 Quincy Compressor 50163-104, February 2008 3501 Wismann Lane, Quincy IL - 62305-3116...
  • Page 18: Pneumatic Unloader Assembly

    PNEUMATIC UNLOADER ASSEMBLY 40055 QRNG 350 Quincy Compressor 50163-104, February 2008 3501 Wismann Lane, Quincy IL - 62305-3116...
  • Page 19: Control Group

    CONTROL GROUP 116269-001 QRNG 350 Quincy Compressor 50163-104, February 2008 3501 Wismann Lane, Quincy IL - 62305-3116...
  • Page 20: Recommended Spare Parts

    Quart 112543Q100 1 qt., SAE 30 Quart Case 112543C100 (12)-1 qt., SAE 30 CAUTION ! Refer to the QRNG Series Instruction Manual for vital lubrication information. QRNG 350 Quincy Compressor 50163-104, February 2008 3501 Wismann Lane, Quincy IL - 62305-3116...
  • Page 21 QUINCY COMPRESSOR STANDARD TERMS AND CONDITIONS LEGAL EFFECT: Except as expressly otherwise agreed to in writing by an authorized representative of Seller, the following terms and conditions shall apply to and form a part of this order and any additional and/or different terms of Buyer’s purchase order or other form of acceptance are rejected in advance and shall not become a part of this...
  • Page 22 Seller assumes no responsibility for compliance with those laws and regulations, whether by the way of indemnity, warranty or otherwise. June 30, 2003 QRNG 350 Quincy Compressor 50163-104, February 2008 3501 Wismann Lane, Quincy IL - 62305-3116...
  • Page 24 Air Master Air Master 217.277.0270 Air Master Air Master E-mail: E-mail: E-mail: E-mail: E-mail: info@quincycompressor.com W W W W W ebsite: ebsite: ebsite: ebsite: ebsite: quincycompressor.com © 2006 Quincy Compressor, an EnPro Industries company quincyairmaster.com All Rights Reserved. Litho in U.S.A.

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Qrng 350

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