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QR-25
Parts Manual · Record of Change 105
Manual No. 50216-105
Quincy
®
Series
Model 340
This manual contains important safety
information and should 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
Quincy
Compressor
T r u e B l u e R e l i a b i l i t y
®
TM
July 1999 Edition
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Table of Contents
Related Manuals for Quincy 340
Summarization of Contents
Introduction to QR-25 Series Model 340
Compressor Versions Overview
Details of control versions: P, PUL, L, S, LS, LVD, and their features.
Compressor Specifications
Aircooled, two-stage, two-cylinder, pressure lubricated compressor specifications.
Model and Serial Number Identification
Identification Tag Location and Importance
Location and importance of the model and serial number tag for parts ordering.
Quin-Cip Oil Information
Ordering Quin-Cip Oil Chart
Chart for ordering Quin-Cip compressor oil by package and grade.
Ordering Replacement Parts
Required Information for Parts Orders
Details required for prompt service when ordering repair parts.
Crankshaft Group 110524
Crankshaft Assembly Components
Components of the crankshaft assembly: shaft, bearings, orifice, plugs, and key.
Sheave Assembly Components
Components of the sheave assembly: sheave, screws, and nuts.
Crankshaft Group 110524-001 (Basic Compressors)
Crankshaft Assembly Components (Basic)
Crankshaft assembly components for basic compressors.
Sheave Assembly Components (Basic)
Sheave assembly components for basic compressors.
Crankcase Group 110628-002
Crankcase Main Components
Main crankcase components including the crankcase itself and gaskets.
Bearing Adjustment Shims
Various shims for adjusting crankshaft end play.
Adjustment Plate
Plate used for adjusting crankshaft end play.
Inspection Plates
Plates used for inspecting internal components.
Oil Gauge Assembly
Components of the oil level gauge assembly.
Breather Ball and Drive Pin
Breather ball and drive pin used in the drive mechanism.
Flatwashers
Standard flatwashers used in assembly.
Bearing Carrier Group 110820-001 (with oil filter)
Bearing Carrier Assembly Components
Key components of the bearing carrier assembly, including cup, bushing, and driveshaft.
Oil Pump Components
Components of the oil pump: housing, gerotor, retaining ring, screws, and plugs.
Sealing and Adjustment Parts
O-rings, adjustment screw, jamnut, spring, and needle valve for sealing and adjustment.
Bearing Carrier Gasket
Gasket for the bearing carrier.
Oil Pressure Gauge and Related Parts
Oil pressure gauge and associated bracket gasket and pickup tube.
Maintenance Parts for Bearing Carrier
Oil filter, oil pump repair kit, and replacement bearing carrier assembly.
Bearing Carrier Group 110820 (less oil filter)
Bearing Carrier Assembly Components
Key components of the bearing carrier assembly, including cup, bushing, and driveshaft.
Oil Pump Components
Components of the oil pump: housing, gerotor, retaining ring, screws, and plugs.
Sealing and Adjustment Parts
O-rings, adjustment screw, jamnut, spring, and needle valve for sealing and adjustment.
Bearing Carrier Gasket
Gasket for the bearing carrier.
Oil Pressure Gauge and Related Parts
Oil pressure gauge and associated bracket gasket and pickup tube.
Maintenance Parts for Bearing Carrier
Oil pump repair kit and replacement bearing carrier assembly.
Connecting Rod & Piston Group 110749 (Low Pressure)
Connecting Rod Assembly Components
Rod, bearings, bolts, and washers for the connecting rod assembly.
Piston and Ring Components
Piston, oil ring, piston rings, and connecting rod inserts.
Low Pressure Piston and Ring Kits
Piston and ring sets for low pressure applications.
Low Pressure Piston Assemblies
Complete low pressure piston assemblies.
Replacement Connecting Rod Assembly
Assembly for replacing connecting rods.
Connecting Rod & Piston Group 110750 (High Pressure)
Connecting Rod Assembly Components
Rod, bearings, bolts, and washers for the high pressure connecting rod assembly.
Piston and Ring Components
Piston, oil ring, expander ring, piston rings, and connecting rod inserts.
High Pressure Piston and Ring Kits
Piston and ring sets for high pressure applications.
High Pressure Piston Assemblies
Complete high pressure piston assemblies.
Replacement Connecting Rod Assembly
Assembly for replacing high pressure connecting rods.
Cylinder & Head Group 110751-001 (Control Version P)
Head Assemblies
Standard and high pressure head assembly components.
Cylinder and Gasket Components
Cylinder, cylinder-to-head, and cylinder-to-crankcase gaskets.
Intercooler and Related Gaskets
Intercooler and intercooler-to-head gaskets.
Flanges and Companion Parts
Discharge and companion flanges with their gaskets.
Air Filter and Related Components
Air filter, hooded filter, and filter/silencer with associated hardware.
Various Fasteners and Fittings
Assorted screws, washers, locknuts, tube fittings, and copper tubing.
Intercooler Brackets and Clamps
Brackets and clamps for mounting the intercooler.
Maintenance Parts for Head Assembly
Replacement air filter element and complete head assembly.
Cylinder & Head Group 110752-001 (Control Versions L, S, LS & LVD)
Head Assemblies
Standard and high pressure head assembly components.
Cylinder and Gasket Components
Cylinder, cylinder-to-head, and cylinder-to-crankcase gaskets.
Intercooler and Related Gaskets
Intercooler and intercooler-to-head gaskets.
Flanges and Companion Parts
Discharge and companion flanges with their gaskets.
Air Filter and Related Components
Air filter, hooded filter, and filter/silencer with associated hardware.
Various Fasteners and Fittings
Assorted screws, washers, locknuts, tube fittings, and copper tubing.
Intercooler Brackets and Clamps
Brackets and clamps for mounting the intercooler.
Maintenance Parts for Head Assembly
Replacement air filter element and complete head assembly.
Head Assembly 6661P (Control Version P)
Compressor Head Components
Standard and high pressure compressor head components.
Suction Valve Assembly Components
Parts for suction valve assembly: bumper, seat, disc, and spring.
Discharge Valve Assembly Components
Parts for discharge valve assembly: bumper, seat, disc, and spring.
Valve and Cover Gaskets
Gaskets for valves and valve covers.
Valve Cover Plates and Spacers
Plates and spacers for the valve cover.
Pressure Relief Valve
The pressure relief valve component.
Maintenance Kits for Valve Assemblies
Kits for replacing suction and discharge valve assemblies.
Head Assembly 6661UU (Control Versions L, S, LS & LVD)
Compressor Head Components
Standard and high pressure compressor head components.
Suction Valve Assembly Components
Parts for suction valve assembly: bumper, seat, disc, and spring.
Discharge Valve Assembly Components
Parts for discharge valve assembly: bumper, seat, disc, and spring.
Valve and Cover Gaskets
Gaskets for valves and valve covers.
Valve Cover Plates and Spacers
Plates and spacers for the valve cover.
Unloader Assembly Components
Parts for unloader assembly: body, diaphragm, and cover.
Various Tube Fittings and Copper Tubing
Tube fittings and copper tubing for fluid connections.
Maintenance Kits for Valve and Unloader Assemblies
Kits for replacing valve and unloader assemblies.
Control Group 110860 (Control Versions L)
Hydraulic Unloader Assemblies
Hydraulic unloader assemblies for standard and high pressure applications.
Tube Fittings and Copper Tubing
Tube fittings and copper tubing for fluid connections.
Hydraulic Unloader Repair Kit
Kit for repairing hydraulic unloader.
Special Application Unloader Assemblies
Unloader assemblies for specific synthetic lubricants.
Control Group 110857 (Control Version S)
Pilot Valve Assembly Components
Components of the pilot valve assembly.
Pilot Valve Identification
The pilot valve itself and its part number.
Tube Fittings and Mounting Hardware
Tube fittings and mounting studs/screws for pilot valve setup.
Control Group 110858 (Control Version LS)
Pilot Valve Assembly Components
Components of the pilot valve assembly.
Pilot Valve Identification
The pilot valve itself and its part number.
Hydraulic Unloader Assemblies
Hydraulic unloader assemblies for standard and high pressure applications.
Tube Fittings and Mounting Hardware
Tube fittings and mounting studs/screws for control group setup.
Hydraulic Unloader Repair Kit
Kit for repairing hydraulic unloader.
Special Application Unloader Assemblies
Unloader assemblies for specific synthetic lubricants.
Control Group 110859 (Control Version LVD)
Pilot Valve Assembly Components
Components of the pilot valve assembly.
Pilot Valve Identification
The pilot valve itself and its part number.
Hydraulic Unloader Assemblies
Hydraulic unloader assemblies for standard and high pressure applications.
Tube Fittings and Mounting Hardware
Tube fittings and mounting studs/screws for control group setup.
Hydraulic Unloader Repair Kit
Kit for repairing hydraulic unloader.
Special Application Unloader Assemblies
Unloader assemblies for specific synthetic lubricants.
Pilot Valves
Pilot Valve Selection Guide
Guide to selecting pilot valves based on pressure setting and dash number.
Pilot Valve Diagrams and Descriptions
Diagrams and descriptions for S, LS, and LVD series pilot valves.
Pilot Valve Repair Kit 110832-051
Repair Kit Components
Parts included in the pilot valve repair kit.
Differential Setting Chart
Spring Part Number to Setting Chart
Chart linking spring part numbers to unload and differential pressure settings.
Suction Valve Unloader Assemblies
Assembly Description and Function
Explanation of the suction valve unloader assembly's purpose and operation.
Application and Installation
Recommended uses and installation procedures for suction valve unloaders.
Pilot Valve Service and Adjustment
Procedures for servicing and adjusting pilot valves.
Check Valve Assemblies
Check Valve Replacement Parts
Parts list for check valve assemblies.
Hydraulic Unloader Assemblies
Hydraulic Unloader Diagrams for Special Lubricants
Diagrams of hydraulic unloader assemblies for specific synthetic lubricants.
Hydraulic Unloader Assembly Repair Kit 113225
Repair Kit Components
Parts included in the hydraulic unloader repair kit.
Maintenance Kits and Components
Head Kit K340A Parts
Valve, gasket, and air filter components for Head Kit K340A.
Basic Compressor Repair Kit 110823-340 Parts
Key components for basic compressor repair, including pins, filters, O-rings, and bearings.
Overhaul Kit K340B Parts
Overhaul kit parts including piston pin, filter, diaphragm, and gaskets.
Piston Pin Kit K340E Parts
Piston pin kit parts including bearing, pin, needle bearing, and retaining ring.
Gasket Set 7088 Parts
Gasket set parts including inspection plate, bearing shims, and various gaskets.
Recommended Spare Parts
Commonly replaced parts like valve assemblies, repair kits, gaskets, and filters.
V.I.P. Kit 110516-340 Parts
V.I.P. kit parts including gauge, diaphragm, valve disc, spring, and gasket set.
Decals
Safety and identification decals for the unit.
Typical Unit Repair Parts List
QR 340 Simplex Electric Motor Units - Tank and Related Parts
Repair parts for simplex units: tank, top plate, drain valve, ball valve, pressure gauge, switch, relief valve, discharge tube, and ferrule.
QR 340 Simplex Electric Motor Units - Drive and Motor Parts
Repair parts for simplex units: drive belt, motor pulley, belt guard, and 7.5 HP motor.
QR 340 Duplex Electric Motor Units - Tank and Related Parts
Repair parts for duplex units: tank, top plate, drain valve, ball valve, pressure gauge, switch, relief valve, discharge tube, and ferrule.
QR 340 Duplex Electric Motor Units - Drive and Motor Parts
Repair parts for duplex units: drive belt, motor pulley, belt guard, and 7.5 HP motor.
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