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QuincyCompressor®

T r u e B l u e R e l i a b i l i t y TM

This manual contains important safetyinformation and should be made availableto all personnel who operate and/ormaintain this product. Carefully read thismanual before attempting to operate orperform maintenance on this compressor.

Fill Out & ReturnWarranty Registration Card Located Inside

Manual No. 50219-108 October 2000 Edition

QuincyQR-25® Series

Model 390Parts Manual · Record of Change 108

QR 390 Quincy Compressor

50219-108, October 2000 1 3501 Wismann Lane, Quincy IL - 62305-3116

INTRODUCTIONThis manual provides information for the followingQR-25 Series, Model 390 (Record of Change 108)compressor versions:

P Control Version Pplain head assembly & no controls

L Control Version Lhead assembly with 2 unloader towers &a hydraulic unloader

S Control Version Shead assembly with 2 unloader towers &a pilot valve

LS Control Version LShead assembly with 2 unloader towers,a hydraulic unloader, & a pilot valvewith a check valve assembly

LVD Control Version LVDhead assembly with 2 unloader towers,a hydraulic unloader, & a pilot valvewith a lockout & check valve

These compressors are aircooled, two stage, twocylinder, pressure lubricated compressors, with upto 200 p.s.i. continuous pressure capability (201 to250 p.s.i. intermittant pressure capability with properconfiguration; consult factory). The Model 390 has a7.5" low pressure piston bore and a 4" high pressurepiston bore and a 4" stroke and can be run at 400-940r.p.m.

Available options included in this manual:-spin-on oil filter-hooded air filter-hooded air filter / silencer

CHANGESsince previous printing dated August 1999:

Record of Change 108:

Changed the high pressure rod to use needlebearings.

TABLE OF CONTENTSSerial Number Identification .................................. 2Ordering Replacement Parts ................................ 2Quin-Cip Oil ............................................................ 2Crankcase Lubricant Capacity .............................. 2Crankshaft Group .................................................. 3Crankcase Group................................................... 4Bearing Carrier Groups

with oil filter .....................................................5-6less oil filter .....................................................7-8

Connecting Rod & Piston GroupsLow Pressure ................................................. 9-10High Pressure .............................................. 11-12

Cylinder & Head GroupsControl Version P ........................................ 13-14Control Versions L, S, LS, LVD .................. 15-16

Head AssembliesControl Version P ........................................ 17-18Control Versions L, S, LS, LVD .................. 19-22

Control GroupsVersion L ........................................................... 23Version S ........................................................... 24Version LS ........................................................ 25Version LVD ...................................................... 26

Pilot Valves .......................................................... 27Pilot Valve Repair Kit .......................................... 27Differential Setting Charts .................................. 27Suction Valve Unloader Assemblies .................. 28Decals ................................................................... 28Gasket Set ............................................................ 29Kits ....................................................................... 29Recommended Spare Parts ................................ 29Typical Unit Repair Parts List ............................. 30



MODEL &SERIAL NUMBERIDENTIFICATION Record

ofChange No.

Model & Serial NumberIdentification Tag

The model & serial number tag is located on thehandhole plate side of the crankcase. Fill in thenumbers from your compressor's tag in the corre-sponding spaces provided here and reference thispage when ordering replacement parts.

All replacement parts are to be ordered throughan authorized Quincy Compressor Distributor. In-sist on genuine Quincy parts only! Failure to do somay void warranty.

ORDERINGREPLACEMENT PARTSPrompt service can be rendered on repair partsorders if the following information is given:

Item 1) the model number, record of changenumber, & serial number.

Item 2) the exact part number needed. (Do notorder by item numbers.)

Item 3) the exact quantity needed.Item 4) the preferred type of transportation

QUIN-CIP® OILRefer to the chart below to order QUIN-CIP compres-sor oil from your local Authorized Quincy Distributor.

Package Part No. Description

Barrel 112541D032 55 gal., SAE 10WPail 112541P032 5 gal., SAE 10W

Gallon 112541G032 1 gal., SAE 10WGallon Case 112541X032 (4)-1 gal., SAE 10W

Quart 112541Q032 1 qt., SAE 10WQuart Case 112541C032 (12)-1 qt., SAE 10W

Barrel 112542D068 55 gal., SAE 20Pail 112542P068 5 gal., SAE 20

Gallon 112542G068 1 gal., SAE 20Gallon Case 112542X068 (4)-1 gal., SAE 20

Quart 112542Q068 1 qt., SAE 20Quart Case 112542C068 (12)-1 qt., SAE 20

Barrel 112543D100 55 gal., SAE 30Pail 112543P100 5 gal., SAE 30

Gallon 112543G100 1 gal., SAE 30Gallon Case 112543X100 (4)-1 gal., SAE 30

Quart 112543Q100 1 qt., SAE 30Quart Case 112543C100 (12)-1 qt., SAE 30

CAUTION !

DANGER !

Follow all safety precautions outlined in the QR-25 Seriesinstruction manual.

Do not operate this compressor without a totally enclosedbelt guard or any other required safety equipment.

Air used for breathing or food processing must meetO.S.H.A. 1910.134 or F.D.A. 21 C.F.R. 178.3570 regulations.Failure to do so may cause severe injury or death.

WARNING !

Refer to the QR-25 Series Instruction Manual for vital lubri-cation information.

CAUTION !

Model Less Filter With Filter

QR-390 91/2 Qts. Add 10 oz.

CRANKCASE LUBRICANTCAPACITY



CRANKCASE GROUP 110650-001CRANKCASE GROUP 110650-001CRANKCASE GROUP 110650-001CRANKCASE GROUP 110650-001CRANKCASE GROUP 110650-001ItemItemItemItemItem PartPartPartPartPart

NumberNumberNumberNumberNumber Qty.Qty.Qty.Qty.Qty. NumberNumberNumberNumberNumber DescriptionDescriptionDescriptionDescriptionDescription

1 1 6946 crankcase2 1 4357 bearing cup3 * 1498 bearing adjustment shim, .005 steel4 * 1498A bearing adjustment shim, .007 plastic5 * 1498B bearing adjustment shim, .020 steel6 * 1498C bearing adjustment shim, .002 steel7 1 6643 adjustment plate8 4 123478-N14 hex. screw, 1/2-13 unc x 1.25, grade 5 ( @ 75 ft.-lbs.)9 1 2057 pipe plug, 1/2 npt10 2 1315 gasket, inspection plate11 1 1249-1 inspection plate12 12 123478-K12 hex. screw, 5/16-18 unc x 1.00, grade 5 (@ 12 ft.-lbs.)13 1 6849-1 inspection plate14 1 6726X001 oil gauge assembly

14.1 1 5488-001 oil gauge rod (N.S.S.; order 6726X001)14.2 1 6726 oil gauge knob (N.S.S.; order 6726X001)14.3 2 123157-210 "o"ring, 1/8" wide x 1.00 o.d.

15 1 5783 breather ball16 12 110428N031 flatwasher, 5/1617 1 5932 drive pin

14.3 2 22749-210 "o"ring, 1/8 wide x 1.00 o.d.Parts for use with diester or phosphate ester synthetic based lubricantsParts for use with diester or phosphate ester synthetic based lubricantsParts for use with diester or phosphate ester synthetic based lubricantsParts for use with diester or phosphate ester synthetic based lubricantsParts for use with diester or phosphate ester synthetic based lubricants

N.S.S. = Not Sold Separate@ Indicates torque value in foot pounds (dry threads)Note: For reversal of compressor rotation refer to QR-25 instruction manual.

8

76

5

43 2

10

11

16

12

17 15

9

1 10

13 16

12

14.3

14.1

14.2



CRANKSHAFT GROUP 110651-1CRANKSHAFT GROUP 110651-1CRANKSHAFT GROUP 110651-1CRANKSHAFT GROUP 110651-1CRANKSHAFT GROUP 110651-1

ItemItemItemItemItem PartPartPartPartPartNumberNumberNumberNumberNumber Qty.Qty.Qty.Qty.Qty. NumberNumberNumberNumberNumber DescriptionDescriptionDescriptionDescriptionDescription

1 1 112521X crankshaft assembly1.1 1 112521 crankshaft (N.S.S.; order 112521X)1.2 1 3776 bearing cone1.3 1 6651 bearing cone1.4 2 2755S pipe plug, 1/4 npt1.5 1 110234 orifice, 1/8 npt1.6 1 110705-F17 roll pin, 3/16 x 1.38

2 1 110558X sheave assembly2.1 1 110558 sheave, 23-1/2", 4G, B section, ccw (N.S.S.; order 110558X)2.2 2 124571-Q21 hex. screw, 5/8-18 unf x 3.00, grade 5 ( @ 150 ft.-lbs.)2.3 2 110428W062 flatwasher-5/82.4 2 123115-10C lockwasher, 5/82.5 2 1883 square nut, 5/8-18 unf

3 1 2851 key

@ Indicates torque value (dry threads). Tighten multiple bolts, capscrews & hex nuts in a criss-cross or alternating pattern. Bringeach fastener to the recommended torque specification in even increments.

N.S.S. = Not Sold SeparateFor reversal of compressor rotation refer to QR-25 instruction manual.

1.2

1.6

1.4

1.1

1.4

1.5

1.3

3

2.1

2.2

2.3

2.4

2.5



BEARING CARRIER GROUP 110818-005BEARING CARRIER GROUP 110818-005BEARING CARRIER GROUP 110818-005BEARING CARRIER GROUP 110818-005BEARING CARRIER GROUP 110818-005(with oil filter)




BEARING CARRIER GROUP 110818-005BEARING CARRIER GROUP 110818-005BEARING CARRIER GROUP 110818-005BEARING CARRIER GROUP 110818-005BEARING CARRIER GROUP 110818-005(with oil filter)

1 1 110811-003 bearing carrier assembly1.1 1 110811 bearing carrier

includes bearing cup & bushings1.2 1 123157-152 "o"ring, 3/32 wide x 3.44 o.d.1.3 1 123157-112 "o"ring, 3/32 wide x .69 o.d.1.4 1 160002-001 bearing carrier driveshaft1.5 1 160075-001 driveshaft key1.6 1 160003 pump gerotor1.7 1 6285 retaining ring1.8 1 110813-001 oil pump housing1.9 6 123777-J12 hex. screw, 1/4-20 unc x 1.00, grade 5 (@ 6 ft.-lbs.)1.10 2 2719 pipe plug, 1/4 npt, hex socket1.11 1 5489 adjustment screw1.12 1 123157-011 "o"ring, 1/16 wide x .44 o.d.1.13 1 124369-P02 jamnut, 9/16-18 unf1.14 1 1160 spring1.15 1 112857 needle valve1.16 1 121160 pipe plug, 1/8 npt

2 1 5494 gasket, bearing carrier3 8 123478-N14 hex. screw, 1/2-13 unc x 1.25, grade 5 ( @ 75 ft.-lbs.)4 1 110822 oil pressure gauge5 1 6679 gasket6 1 110660 oil pickup tube7 2 123115-06C lockwasher, 3/88 2 123478-L11 hex. screw, 3/8-16 unc x .88, grade 5 (@ 25 ft.-lbs.)9 1 110825 stud11 1 113159 oil deflector

10 1 110814-001 6 pack of oil filters160079 Oil Pump Repair Kit

includes "o"rings, bearing carrier driveshaft, key, gerotor pump & retaining ring110811X003 Replacement Bearing Carrier Assembly

includes bearing carrier assembly, oil filter, oil filter stud & gaskets

*Maintenance PartsMaintenance PartsMaintenance PartsMaintenance PartsMaintenance Parts


* Can not be used with diester or phosphate ester synthetic lubricants.



BEARING CARRIER GROUP 110818-006BEARING CARRIER GROUP 110818-006BEARING CARRIER GROUP 110818-006BEARING CARRIER GROUP 110818-006BEARING CARRIER GROUP 110818-006(less oil filter)




BEARING CARRIER GROUP 110818-006BEARING CARRIER GROUP 110818-006BEARING CARRIER GROUP 110818-006BEARING CARRIER GROUP 110818-006BEARING CARRIER GROUP 110818-006(less oil filter)

1 1 110811-002 bearing carrier assembly1.1 1 110811 bearing carrier

includes bearing cup & bushings1.2 1 123157-152 "o"ring, 3/32 wide x 3.44 o.d.1.3 1 123157-112 "o"ring, 3/32 wide x .69 o.d.1.4 1 160002-001 bearing carrier driveshaft1.5 1 160075-001 driveshaft key1.6 1 160003 pump gerotor1.7 1 6285 retaining ring1.8 1 110813 housing1.9 6 123777-J12 hex. screw, 1/4-20 unc x 1.00, grade 5 (@ 6 ft.-lbs.)1.10 2 2719 pipe plug, 1/4 npt, hex socket1.11 1 5489 adjustment screw1.12 1 123157-011 "o"ring, 1/16 wide x .44 o.d.1.13 1 124369-P02 jamnut, 9/16-18 unf1.14 1 1160 spring1.15 1 112857 needle valve

2 1 5494 gasket, bearing carrier3 8 123478-N14 hex. screw, 1/2-13 unc x 1.25, grade 5 ( @ 75 ft.-lbs.)4 1 110822 oil pressure gauge5 1 6679 gasket6 1 110660 oil pickup tube7 2 123115-06C lockwasher, 3/88 2 123478-L11 hex. screw, 3/8-16 unc x .88, grade 5 (@ 25 ft.-lbs.)9 1 113159 oil deflector

160079 Oil Pump Repair Kitincludes "o"rings, bearing carrier driveshaft, key, gerotor pump & retaining ring

1 110811X002 Replacement Bearing Carrier Assemblyincludes bearing carrier assembly & gaskets

1.2 1 22749-152 "o"ring, 3/32 wide x 3.44 o.d.1.3 1 22749-112 "o"ring, 3/32 wide x .69 o.d.1.12 1 22749-011 "o"ring, 1/16 wide x .44 o.d.

160079-001 Oil Pump Repair Kitincludes "o"rings, bearing carrier driveshaft, gerotor pump & retaining ring


Maintenance PartsMaintenance PartsMaintenance PartsMaintenance PartsMaintenance Parts

Parts for use with diester or phosphate ester synthetic based lubricantsParts for use with diester or phosphate ester synthetic based lubricantsParts for use with diester or phosphate ester synthetic based lubricantsParts for use with diester or phosphate ester synthetic based lubricantsParts for use with diester or phosphate ester synthetic based lubricants



CONNECTING ROD & PISTON GROUP 110652-001CONNECTING ROD & PISTON GROUP 110652-001CONNECTING ROD & PISTON GROUP 110652-001CONNECTING ROD & PISTON GROUP 110652-001CONNECTING ROD & PISTON GROUP 110652-001(low pressure)

5

4

4

31.1

1.4

2

1.3

8

7

10

9

9

10

1.2

TOPGROOVE

SECONDGROOVE

6

BOTTOMGROOVE

THIRDGROOVE

Be sure to stagger ringBe sure to stagger ringBe sure to stagger ringBe sure to stagger ringBe sure to stagger ringgaps 180°.gaps 180°.gaps 180°.gaps 180°.gaps 180°.

Pip marks indicate topPip marks indicate topPip marks indicate topPip marks indicate topPip marks indicate topsurfaces of rings.surfaces of rings.surfaces of rings.surfaces of rings.surfaces of rings.



CONNECTING ROD & PISTON GROUP 110652-001CONNECTING ROD & PISTON GROUP 110652-001CONNECTING ROD & PISTON GROUP 110652-001CONNECTING ROD & PISTON GROUP 110652-001CONNECTING ROD & PISTON GROUP 110652-001(low pressure)


*

1 1 40249 connecting rod assembly (N.S.S.; order 110589X)1.1 1 110589 connecting rod (N.S.S.; order 110589X)1.2 1 1345 connecting rod bushing (can not be purchased; order 1345SR)1.3 2 1344 connecting rod bolt, 7/16-20 unf x 3.251.4 2 1319 connecting rod bolt washer

2 2 124471-M08 locknut, 7/16-20 unf (@ 40 ft.-lbs.)3 2 2819 connecting rod bearing insert (N.S.S.; order 2819PR)4 2 8649 retaining ring5 1 8645 piston pin6 1 8641 piston, LP7 1 2338 piston oil ring8 1 8057 piston ring9 2 7969 piston ring10 2 8059 spring

3 1 2819PR connecting rod inserts (1 pair, standard size)3 1 2819-010PR connecting rod inserts (1 pair, .010 undersize)

1.2 1 1345SR connecting rod bushing6 1 8641-010 piston, LP (.010 oversize)6 1 8641-020 piston, LP (.020 oversize)

8169 Piston Ring Set, LPincludes piston rings

2378-010 Piston Ring Set, LPincludes piston rings

2378-020 Piston Ring Set, LPincludes piston rings

8641X Piston Assembly, LP (Standard)includes compressor piston, piston ring, retaining ring & side sealer ring set

8641X010 Piston Assembly, LP (.010 Oversize)includes compressor piston, piston ring, retaining ring & piston ring set

8641X020 Piston Assembly, LP (.020 Oversize)includes compressor piston, piston pin, retaining ring & piston ring set

110589X Replacement Connecting Rod Assemblyincludes connecting rod assembly, con rod bearing inserts & locknuts

110589XUS Replacement Connecting Rod Assembly (.010 Undersize)includes connecting rod assembly, con rod bearing inserts & locknuts

Maintenance PartsMaintenance PartsMaintenance PartsMaintenance PartsMaintenance Parts*


* One pair required for each connecting rod assembly.N.S.S. = Not Sold Separate



CONNECTING ROD & PISTON GROUP 110642CONNECTING ROD & PISTON GROUP 110642CONNECTING ROD & PISTON GROUP 110642CONNECTING ROD & PISTON GROUP 110642CONNECTING ROD & PISTON GROUP 110642(high pressure)

7

7

7

8

9

8

7

6

5

1.2

3

1.1

1.4

2

10

4

1.3

THIRDGROOVE

FOURTHGROOVE

FIFTHGROOVE

BOTTOMGROOVE

SECONDGROOVE

FIRSTGROOVE

Be sure to stagger ringBe sure to stagger ringBe sure to stagger ringBe sure to stagger ringBe sure to stagger ringgaps 180°.gaps 180°.gaps 180°.gaps 180°.gaps 180°.

Pip marks indicate topPip marks indicate topPip marks indicate topPip marks indicate topPip marks indicate topsurfaces of rings.surfaces of rings.surfaces of rings.surfaces of rings.surfaces of rings.

1.2

1.5



CONNECTING ROD & PISTON GROUP 110642CONNECTING ROD & PISTON GROUP 110642CONNECTING ROD & PISTON GROUP 110642CONNECTING ROD & PISTON GROUP 110642CONNECTING ROD & PISTON GROUP 110642(high pressure)


Maintenance PartsMaintenance PartsMaintenance PartsMaintenance PartsMaintenance Parts**

1 1 114999 connecting rod assembly (N.S.S.; order 110589X002)1.1 1 40249-001 connecting rod (N.S.S.; order 110589X002)1.2 2 112059 needle bearing1.3 2 1344 connecting rod bolt, 7/16-20 unf x 3.251.4 2 1319 connecting rod bolt washer1.5 1 110801-001 orifice plug

2 2 124471-M08 locknut, 7/16-20 unf (@ 40 ft.-lbs.)3 2 2819 connecting rod bearing insert (N.S.S.; order 2819PR)4 1 1298 cotter pin5 1 2341 piston pin6 1 5645-002 piston, HP7 5 1464 piston ring8 2 6591 piston rail9 1 6590 expander oil ring10 1 1384 piston pin lock screw

3 1 2819PR connecting rod inserts (1 pair, standard size)3 1 2819-010PR connecting rod inserts (1 pair, .010 undersize)6 1 5645-011 piston, HP (.010 oversize)6 1 5645-021 piston, LP (.020 oversize)

8170A Piston Ring Set, HPincludes piston rings, oil ring expander & piston rails

5627-010 Piston Ring Set, HPincludes piston rings, oil ring expander & piston rails

5627-020 Piston Ring Set, HPincludes piston rings

5645X001 Piston Assembly, HP (Standard)includes high pressure piston, piston pin, cotter pin, piston ring set & lock screw

5645X011 Piston Assembly, HP (.010 Oversize)includes high pressure piston, piston pin, cotter pin, lock screw & piston ring set

5645X021 Piston Assembly, HP (.020 Oversize)includes high pressure piston, piston pin, cotter pin, piston ring set & lock screw

110589X002 Replacement Connecting Rod Assemblyincludes connecting rod assembly, con rod bearing inserts & locknuts

110589XUS1 Replacement Connecting Rod Assembly (.010 Undersize)includes connecting rod assembly, con rod bearing inserts & locknuts


* One pair required for each connecting rod assembly.N.S.S. = Not Sold Separate



CYLINDER & HEAD GROUP 110653-001CYLINDER & HEAD GROUP 110653-001CYLINDER & HEAD GROUP 110653-001CYLINDER & HEAD GROUP 110653-001CYLINDER & HEAD GROUP 110653-001(control version P)

12

13

24

2523

19

18

22

21

24

2323

20

21

20

228

5

7

9

26

3

4

14

15

12

13

10

11

1

2

5

6

816

17



CYLINDER & HEAD GROUP 110653-001CYLINDER & HEAD GROUP 110653-001CYLINDER & HEAD GROUP 110653-001CYLINDER & HEAD GROUP 110653-001CYLINDER & HEAD GROUP 110653-001(control version P)


1 1 2334P head assembly2 1 5695 gasket, cylinder to head3 1 2333-1 cylinder4 1 2344 gasket, cylinder to crankcase5 2 2346 gasket, flange6 1 2349 discharge flange7 1 2350 intake flange8 8 123478-N16 hex. screw, 1/2-13 unc x 1.75, grade 5 (@ 75 ft.-lbs.)9 1 110377F250 air filteror9 1 110377H250 hooded air filteror9 1 110377S250 hooded air filter silencer10 1 3145 tube fitting, 90° male elbow, 1/2 tube x 3/8 npt11 3 ft. 110515-050 copper tube, 1/2 o.d.12 13 123115-08C lockwasher, 1/213 13 90386-N16 counterbore screw, 1/2-13 unc x 1.75, grade 8 (@ 45 ft.-lbs.)

(cylinder to head: @ 80 ft.-lbs.) (intercooler to head: @ 65 ft.-lbs.)14 7 90386-Q15 counterbore screw, 5/8-11 unc x 1.50, grade 8 (@ 110 ft.-lbs.)15 7 123115-10C lockwasher, 5/816 5 90386-N27 counterbore screw, 1/2-13 unc x 5.00, grade 8 (@ 80 ft.-lbs.)17 5 1478-1 flatwasher18 1 5694 gasket, intercooler19 1 2343-2 intercooler20 2 2358 bracket21 2 2359 intercooler bracket clamp22 2 124571-K12 hex. screw, 5/16-24 unf x 1.00 grade 523 2 124471-K08 locknut, 5/16-24 unf24 2 90386-N12 counterbore screw, 1/2-13 unc x 1.00 grade 825 2 110428N050 flatwasher, 1/2

26 1 110377E200 air filter element2334X16P Replacement Head Assembly

includes head assembly & cylinder to head gasket





CYLINDER & HEAD GROUP 110654-001CYLINDER & HEAD GROUP 110654-001CYLINDER & HEAD GROUP 110654-001CYLINDER & HEAD GROUP 110654-001CYLINDER & HEAD GROUP 110654-001(control versions L, S, LS, & LVD)



CYLINDER & HEAD GROUP 110654-001CYLINDER & HEAD GROUP 110654-001CYLINDER & HEAD GROUP 110654-001CYLINDER & HEAD GROUP 110654-001CYLINDER & HEAD GROUP 110654-001(control versions L, S, LS, & LVD)


1 1 2334UU head assembly2 1 5695 gasket, cylinder to head3 1 2333-1 cylinder4 1 2344 gasket, cylinder to crankcase5 2 2346 gasket, flange6 1 2349 discharge flange7 1 2350 intake flange8 8 123478-N16 hex. screw, 1/2-13 unc x 1.75, grade 5 (@ 75 ft.-lbs.)9 1 110377F250 air filteror9 1 110377H250 hooded air filteror9 1 110377S250 hooded air filter silencer10 1 3145 tube fitting, 90° male elbow, 1/2 tube x 3/8 npt11 3 ft. 110515-050 copper tube, 1/2 o.d.12 13 123115-08C lockwasher, 1/213 13 90386-N16 counterbore screw, 1/2-13 unc x 1.75, grade 8 (@ 45 ft.-lbs.)

(cylinder to head: @ 80 ft.-lbs.) (intercooler to head: @ 65 ft.-lbs.)14 7 90386-Q15 counterbore screw, 5/8-11 unc x 1.50, grade 8 (@ 110 ft.-lbs.)15 7 123115-10C lockwasher, 5/816 5 90386-N27 counterbore screw, 1/2-13 unc x 5.00, grade 8 (@ 80 ft.-lbs.)17 5 1478-1 flatwasher18 1 5694 gasket, intercooler19 1 2343-2 intercooler20 2 2358 bracket21 2 2359 intercooler bracket clamp22 2 124571-K12 hex. screw, 5/16-24 unf x 1.00 grade 523 2 124471-K08 locknut, 5/16-24 unf24 2 90386-N12 counterbore screw, 1/2-13 unc x 1.00 grade 825 2 110428N050 flatwasher, 1/2

26 1 110377E200 air filter element2334X16L Replacement Head Assembly

includes head assembly & gaskets





HEAD HEAD HEAD HEAD HEAD ASSEMBLASSEMBLASSEMBLASSEMBLASSEMBLY 2334PY 2334PY 2334PY 2334PY 2334P(control version P)



HEAD HEAD HEAD HEAD HEAD ASSEMBLASSEMBLASSEMBLASSEMBLASSEMBLY 2334PY 2334PY 2334PY 2334PY 2334P(control version P


1 1 2334 head2 3 6949X1 suction valve assembly

2.1 1 6949 valve bumper2.2 1 2002 valve seat2.3 1 2087 valve disc2.4 1 6909 valve spring2.5 1 1429 valve stud

3 3 6948X002 discharge valve assembly3.1 1 6948-002 valve bumper3.2 1 1424A002 valve seat3.3 1 2087 valve disc3.4 1 6909 valve spring

4 6 1356 valve gasket5 6 6952 valve retainer6 2 2347 gasket, valve plate7 2 2348 gasket, cover plate8 2 6941 cover plate9 1 6955 cover plate10 6 126490-R19 hex. screw, 3/4-16 unf x 2.50, grade 5 (@ 75 ft.-lbs.)11 6 124369-R02 jamnut, 3/4-16 unf (@ 50 ft.-lbs.)12 20 123478-N16 hex. screw, 1/2-13 unc x 1.75, grade 513 1 3022-100 pressure relief valve14 1 110664 cover plate15 1 3145 tube fitting, 90° male elbow, 1/2 tube x 3/8 npt

2 6949X Replacement Suction Valve Assemblyincludes suction valve assembly & valve gasket

2 6948X2 Replacement Discharge Valve Assemblyincludes discharge valve assembly & valve gasket


Tighten & torque valve cover plate screws (item 12) before tightening valve clamp screws (item 10). @ 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.



HEAD HEAD HEAD HEAD HEAD ASSEMBLASSEMBLASSEMBLASSEMBLASSEMBLY 2334UUY 2334UUY 2334UUY 2334UUY 2334UU(control versions L, S, LS, & LVD)



HEAD ASSEMBLY 2334UUHEAD ASSEMBLY 2334UUHEAD ASSEMBLY 2334UUHEAD ASSEMBLY 2334UUHEAD ASSEMBLY 2334UU(control versions L, S, LS, & LVD)


1 1 2334 head2 3 6949X1 suction valve assembly

2.1 1 6949 valve bumper2.2 1 2002 valve seat2.3 1 2087 valve disc2.4 1 6909 valve spring2.5 1 1429 valve stud

3 3 6948X002 discharge valve assembly3.1 1 6948-002 valve bumper3.2 1 1424A002 valve seat3.3 1 2087 valve disc3.4 1 6909 valve spring

4 6 1356 valve gasket5 4 6952 valve retainer6 2 2347 gasket, valve plate7 2 2348 gasket, cover plate8 1 6941 cover plate9 1 6955 cover plate10 4 126490-R19 hex. screw, 3/4-16 unf x 2.50, grade 5 (@ 75 ft.-lbs.)11 4 124369-R02 jamnut, 3/4-16 unf (@ 50 ft.-lbs.)12 20 123478-N16 hex. screw, 1/2-13 unc x 1.75, grade 513 6 6910 valve spring14 6 1857 valve pin15 2 6938 valve platform16 2 6951 valve retainer17 2 6950-001 unloader pin18 2 7532X unloader piston assembly19 1 6940 cover plate20 1 6942 cover plate21 2 3008 holddown screw/ (@ 60 ft.-lbs.)22 2 1556 gasket, valve23 1 40055 unloader assembly (@ 75 ft.-lbs.) (N.S.S.; order 7483X)

23.1 1 7483 unloader body23.2 1 1855 diaphragm23.3 1 1818B diaphragm cover plate23.4 1 5910 diaphragm disc23.5 6 7499 hex. screw, 1/4-20 unc x .75, grade 2 (@ 72 in.-lbs.)

24 1 40192 unloader assembly (@ 75 ft.-lbs.), (N.S.S.; order 8272X)24.1 1 8272 unloader body24.2 1 1855 diaphragm24.3 1 1818B diaphragm cover plate24.4 1 5910 diaphragm disc24.5 6 7499 hex. screw, 1/4-20 unc x .75, grade 2 (@ 72 in.-lbs.)

25 2 1642 tube fitting, 90° male elbow, 1/4 tube x 1/8 npt26 2 ft. 110515-025 copper tube, 1/4 o.d.27 1 3022-100 pressure relief valve28 1 3145 tube fitting, 90° male elbow, 1/2 tube x 3/8 npt

CONTINUED ON PAGE 22.


N.S.S. = Not Sold Separate





1 6949X Replacement Suction Valve Assemblyincludes suction valve assembly & gasket valve

2 6949XU Suction Valve Assemblyincludes suction valve assembly,, unloader pin spring, valve pin & valve gasket

3 6948X2 Replacement Discharge Valve Assemblyincludes discharge valve assembly & valve gasket

1 7483X Replacement Suction Valve Assemblyincludes unloader assembly, unloader piston assembly, valve gasket & pipe plug

1 8272X Replacement Suction Valve Assemblyincludes unloader piston assembly, unloader assembly & valve gasket

23.2 1 1855S diaphragm24.2 1 1855S diaphragm


Parts for use with diester or phosphate ester synthetic based lubricantsParts for use with diester or phosphate ester synthetic based lubricantsParts for use with diester or phosphate ester synthetic based lubricantsParts for use with diester or phosphate ester synthetic based lubricantsParts for use with diester or phosphate ester synthetic based lubricants


N.S.S. = Not Sold Separate



CONTROL GROUP 110860CONTROL GROUP 110860CONTROL GROUP 110860CONTROL GROUP 110860CONTROL GROUP 110860(control versions L)

ItemItemItemItemItem PartPartPartPartPart PartPartPartPartPartNumberNumberNumberNumberNumber Qty.Qty.Qty.Qty.Qty. NumberNumberNumberNumberNumber NumberNumberNumberNumberNumber DescriptionDescriptionDescriptionDescriptionDescription

0-200 p.s.i. 201-500 p.s.i.1 1 110827-001 110827-002 hydraulic unloader assembly2 3 1642 1642 tube fitting, 90° male elbow, 1/4 tube x 1/8 npt3 4 ft. 110515-025 110515-025 copper tube, 1/4 o.d.4 1 1665 1665 tube fitting, male branch tee, 1/4 tube x 1/4 tube x 1/8 npt

113225 113225 Hydraulic Unloader Repair Kitincludes diaphragm, stem assembly, inlet filter & fitting assembly, spring (0-200 p.s.i.) and spring (201-500 p.s.i., red color code)


1/4 o.d. tubefrom receiver

2 4

3

2

1

2



0-200 p.s.i. 201-500 p.s.i.1 1 110844 110844-999 pilot valve assembly

1.1 1 110832-140 110832-999 pilot valve1.2 1 2616 2616 tube fitting, straight male connector, 3/8 tube x 1/4 npt1.3 1 6317 6317 mounting stud1.4 4 160047-J05 160047-J05 set screw, 1/4-28 unf x .38, grade 51.5 1 2719 2719 pipe plug, 1/4 npt, hex socket

2 4 ft. 110515-025 110515-025 copper tube, 1/4 o.d.3 1 1665 1665 tube fitting, male branch tee, 1/4 tube x 1/4 tube x 1/8 npt4 1 1642 1642 tube fitting, 90° male elbow, 1/4 tube x 1/8 npt5 1 2708 2708 tube fitting, 90° male elbow, 1/4 tube x 1/4 npt

CONTROL GROUP 110857CONTROL GROUP 110857CONTROL GROUP 110857CONTROL GROUP 110857CONTROL GROUP 110857(control version S)


* See pages 26 & 27 for optional pilot valves that must be used with respective pressure ranges.

*

23

2

1.5 1.1

4

5

1.4

1.3

1.2




CONTROL GROUP 110858CONTROL GROUP 110858CONTROL GROUP 110858CONTROL GROUP 110858CONTROL GROUP 110858(control version LS)

0-200 p.s.i. 201-500 p.s.i.1 1 110845 110845-001 pilot valve assembly

1.1 1 111422-175 111422-999 pilot valve1.2 1 110827-001 110827-002 hydraulic unloader assembly1.3 1 6317 6317 mounting stud1.4 1 160047-J05 160047-J05 set screw, 1/4-28 unf x .38, grade 51.5 1 7361 7361 brass pipe tee, 1/4 npt x 1/4 npt x 1/4 npt1.6 2 1642 1642 tube fitting, 90° male elbow, 1/4 tube x 1/8 npt1.7 1 ft. 110515-025 110515-025 copper tube, 1/4 o.d.1.8 1 1643 1643 tube fitting, straight male connector, 1/4 tube x 1/8 npt1.9 1 2708 2708 tube fitting, 90° male elbow, 1/4 tube x 1/4 npt1.10 1 2616 2616 tube fitting, straight male connector, 3/8 tube x 1/4 npt


113225 113225 Hydraulic Unloader Repair Kitincludes diaphragm, stem assembly, inlet filter & fitting assembly,spring (0-200 p.s.i.) and spring (201-500 p.s.i. red color code)



4 3

2 1.1


1.3

1.4

1.61.6

1.8

5

1.10

1.51.2

1.7

1.9




CONTROL GROUP 110859CONTROL GROUP 110859CONTROL GROUP 110859CONTROL GROUP 110859CONTROL GROUP 110859(control version LVD)


0-200 p.s.i. 201-500 p.s.i.1 1 110846 110846-001 pilot vlave assembly

1.1 1 111423-140 111423-999 pilot valve1.2 1 110827-001 110827-002 hydraulic unloader assembly1.3 1 6317 6317 mounting stud1.4 1 160047-J05 160047-J05 set screw, 1/4-28 unf x .38, grade 51.5 1 7361 7361 brass pipe tee, 1/4 npt x 1/4 npt x 1/4 npt1.6 2 1642 1642 tube fitting, 90° male elbow, 1/4 tube x 1/8 npt1.7 1 ft. 110515-025 110515-025 copper tube, 1/4 o.d.1.8 1 1643 1643 tube fitting, straight male connector, 1/4 tube x 1/8 npt1.9 1 2708 2708 tube fitting, 90° male elbow, 1/4 tube x 1/4 npt1.10 1 2616 2616 tube fitting, straight male connector, 3/8 tube x 1/4 npt


113225 113225 Hydraulic Unloader Repair Kitincludes diaphragm, stem assembly, inlet filter & fitting assembly,spring (0-200 p.s.i.) and spring (201-500 p.s.i. red color code)



2

1.8

1.10

1.5

1.1

1.2

1.6

51.6

1.7

1.4

1.3

1.9

1.7

2

4 3




differential adjustment

toggle leverunload adjustment

airfrom

receiver

1

2 43

111422 series pilot valve (control version LS)

1

432

unload adjustment


airinlet

111423 series pilot valve (control version LVD)

checkball

air in from hydraulicunloader

air out to headunloaders

5

5

air in from hydraulicunloader

checkball

knurledknob

air out to headunloaders

6

6

WARNING !Not all pilots are for use with all compressor systems. Makesure that the pilot you order is set within the safe operatinglimits of your compressor. Failure to heed this warningcould result in an explosion.

PILOPILOPILOPILOPILOT T T T T VVVVVALALALALALVESVESVESVESVES

110832 series pilot valve (control version S)

toggle leverunload adjustment


air fromreceiver

2

1 3 4checkball

air out tohead unloaders

Refer to illustrations at left to determine pilot valve series; adddash # listed below per pressure setting.

-997 30-70 adjustable unload pressure /customer to set, see differen-tial setting chart



Pressure SettingPressure SettingPressure SettingPressure SettingPressure SettingDash #Dash #Dash #Dash #Dash # (p.s.i.)(p.s.i.)(p.s.i.)(p.s.i.)(p.s.i.) NotesNotesNotesNotesNotes

Additional factory preset valves are available upon request.

Available Pilot Valves

Can be used to repair 110832, 111422 & 111423 series pilotvalves. Customer must specify which spring when orderingpilot valve repair kit.

1 2 screen2 1 filter3 1 "o"ring4 1 110832-052 replacement spring, pilot

valve, 30-70 p.s.i. (red colorcode)

1 110832-053 replacement spring, pilotvalve, 71-150 p.s.i. (yellowcolor code)

1 110832-054 replacement spring, pilotvalve, 151-350 p.s.i. (greencolor code)

5 1 6196-003 disc6 1 22749-012 "o"ring

ItemItemItemItemItem PartPartPartPartPart##### Qty.Qty.Qty.Qty.Qty. NumberNumberNumberNumberNumber DescriptionDescriptionDescriptionDescriptionDescription

Pilot Valve Repair Kit 110832-051

Spring Part #Spring Part #Spring Part #Spring Part #Spring Part # UnloadUnloadUnloadUnloadUnload Min. Dif.Min. Dif.Min. Dif.Min. Dif.Min. Dif. Max. Dif.Max. Dif.Max. Dif.Max. Dif.Max. Dif.(item 4)(item 4)(item 4)(item 4)(item 4) (p.s.i.)(p.s.i.)(p.s.i.)(p.s.i.)(p.s.i.) (p.s.i.)(p.s.i.)(p.s.i.)(p.s.i.)(p.s.i.) (p.s.i.)(p.s.i.)(p.s.i.)(p.s.i.)(p.s.i.)

110832-052 30 2 4" 40 5 8" 50 5 8" 60 5 8" 70 5 10

110832-053 80 5 10" 90 5 12" 100 5 13" 110 5 15" 120 5 15" 130 5 18" 140 5 18" 150 5 20

110832-054 160 5 15" 170 5 20" 175 5 23" 200 5 25" 250 10 30" 300 10 40" 350 30 50

Differential Setting Chart



WARNING !

SUCTION VALVEUNLOADER ASSEMBLIESDescriptionDescriptionDescriptionDescriptionDescriptionThe Quincy suction valve unloader assembly con-sists of unloading arrangements on the suction valves,having a plunger to contact the suction valve reedand an unloader pilot valve (part no.s 110832-***,and 110998-***) to automatically regulate the pass-ing of receiver pressure to the unloading arrange-ment.

ApplicationApplicationApplicationApplicationApplicationSuction valve unloader assemblies are recommendedfor use on Quincy compressors where the compres-sor is to run continuously and a constant pressure isto be maintained. The purpose is to automaticallyunseat the suction valve of the compressor when theair supply is greater than the demand.

OperationOperationOperationOperationOperationUnloading occurs when receiver pressure is suffi-cient to overcome pilot valve spring pressure. Thecheck ball is then unseated, allowing receiver pres-sure to pass to the unloading arrangements. Thecompressor will run unloaded until the receiverpressure drops to a predetermined level. At thistime, the action of the ball is reversed, shutting offreceiver pressure to the unloader arrangement andventing the unloader to atmosphere. This allows thecompressor to load. The drive, either electric motoror combustion engine, runs continuously and mustbe started and stopped manually.

Pilot valve 110998-*** can be locked out, formodels equipped with dual control, to provide auto-matic start/stop operation. The knurled knob at thetop of the pilot can be turned clockwise, until it stops,to lock it out. A pressure switch is required to stopthe motor. Failure to use a pressure switch, with thepilot valve locked out, could result in unsafe condi-tions.

A pressure switch must be incorporated whenever pilotvalve 110998-*** is employed as part of the control system.

The compressor will operate in the continous runmode if the knurled knob is turned counterclockwiseuntil it stops.

InstallationInstallationInstallationInstallationInstallationThe pilot valve is to be connected to the air receiverusing a minimum of 3/8" o.d. copper tube. Compres-sors in the field, not equipped with a suction valve

unloader assembly, can be converted to constantspeed. Consult your local Quincy Compressor Dis-tributor for assistance with conversion procedures.

ServiceServiceServiceServiceServicePeriodically check the filter & screens in the inlet ofthe pilot valve to make sure they are free of obstruc-tions. If they become clogged, remove and clean orreplace. Inspect the "o"ring located in the oppositeend of the pilot valve body for wear or damage;replace if necessary.

AdjustmentAdjustmentAdjustmentAdjustmentAdjustmentThe unloading pressure is adjustable and is regu-lated by turning the hex nut (marked "unload adj."in cross sectional illustrations of pilot valves). Turnthe hex nut clockwise to increase and counterclock-wise to decrease the unloading pressure.

The differential (difference between unloadingand loading pressure) is set by turning the hex nut(marked "differential adj." in the cross sectionalillustrations of the pilot valves). Increase the differ-ential pressure by turning the hex nut clockwise -decrease by turning counterclockwise. Tighten thelocknuts after adjustment.

DECALSDECALSDECALSDECALSDECALS


Decals for QR 390 Basic Compressor

* Not sold separate; order 127889.

1 1 110831 serial number & nameplate2 1 127889-A decal, CAUTION!/manual/

"Failure to follow..."3 1 127889-B decal, DANGER! /

"Air used for breathing..."

3

1

2



Head Kit K390A Basic Compressor Repair Kit 110823-390



6 2087 valve disc6 6909 valve spring6 1356 valve gasket2 2348 gasket, cover plate2 2347 gasket, valve plate2 1556 gasket, valve2 1855 diaphragm1 5695 gasket, cylinder to head1 110377E200 air filter element1 5694 gasket, intercooler

1 110190-009 piston pin1 110377E200 air filter element1 110774 "o"ring kit1 110814 oil filter2 1345SR connecting rod bushing6 2087 valve disc2 2819PR connecting rod inserts (1 pair)1 3720 bearing cup1 3776 bearing cone1 4357 bearing cup1 6651 bearing cone6 6909 valve spring1 7079 gasket set1 8169 piston ring set1 8170 piston ring set1 8645 piston pin


Gasket Set 7079

2 1315 inspection plate gasket6 1356 valve gasket3 1498 bearing shim, .0053 1498A bearing shim, .0071 1498B bearing shim, .0202 1498C bearing shim, .0022 1556 valve gasket1 2344 gasket, cylinder to crankcase2 2346 flange gasket2 2347 valve plate gasket2 2348 cover plate gasket1 5494 bearing carrier gasket1 5694 intercooler gasket1 5695 gasket, cylinder to head1 6679 oil inlet bracket gasket


Recommended Spare Parts

2 1855 unloader diaphragmor

* 2 1855S unloader diaphragm3 6949X suction valve assembly3 6948X2 discharge valve assembly2 2819PR connecting rod inserts (1 pair)1 110822 oil pressure gauge1 160079 oil pump repair kitor

** 1 160079-001 oil pump repair kit1 110832-051 pilot repair kit1 7079 gasket set1 110377E200 air filter element1 113225 hydraulic unloader repair kit

* For phophate ester synthetic lubricated models ** For synthetic lubricated models.


V.I.P. Kit 110516-390

2 1855 diaphragm6 1857 valve pin6 2087 valve disc2 6283 hydraulic unloader filter6 6909 valve spring6 6910 valve spring1 7079 gasket set1 110822 oil pressure gauge

Piston Pin Kit K390F


1 2341 piston pin1 8645 piston pin2 1345 connecting rod bushing


Overhaul Kit K390B

2 2819PR connecting rod inserts (1 pair)1 8170A Piston Ring Set, HP1 8169A Piston Ring Set, LP1 7079 gasket set2 1855 diaphragm6 2087 valve disc6 6909 valve spring1 110377E200 air filter element



TYPICTYPICTYPICTYPICTYPICAL UNIT REPAL UNIT REPAL UNIT REPAL UNIT REPAL UNIT REPAIR PAIR PAIR PAIR PAIR PARARARARARTS LISTTS LISTTS LISTTS LISTTS LIST

(QR 390 simplex - horizontal tank - electric motor)

120 gal. 200 gal.1 113271-200 113273-200 tank (200 p.s.i. max. working pressure)1 113278-001 113282-001 top plate1 111136-050 111136-050 tank drain valve1 111136-100 111136-100 ball valve1 110514-300 110514-300 pressure gauge1 110512-003 110512-003 pressure switch (135-175 p.s.i.)1 110513-200 110513-200 pressure relief valve (200 p.s.i.)1 113404 113404 discharge tube2 111265 111265 ferrule/sleeve

20 H.P3 110258B103 drive belt1 110476 motor pulley1 8936 motor pulley bushing1 113229 belt guard assembly

200v, 3Ø 230/460v, 3Ø1 40658 5177 20 h.p. motor (O.D.P.)

PartPartPartPartPart PartPartPartPartPart PartPartPartPartPartQtyQtyQtyQtyQty NumberNumberNumberNumberNumber NumberNumberNumberNumberNumber NumberNumberNumberNumberNumber DescriptionDescriptionDescriptionDescriptionDescription

PartPartPartPartPart PartPartPartPartPart PartPartPartPartPartQtyQtyQtyQtyQty NumberNumberNumberNumberNumber NumberNumberNumberNumberNumber NumberNumberNumberNumberNumber DescriptionDescriptionDescriptionDescriptionDescription

240 gal.1 113470-200 tank (200 p.s.i. max. working pressure)2 113282-001 top plate1 111136-050 tank drain valve1 111136-100 ball valve1 110514-300 pressure gauge2 110512-003 pressure switch (135-175 p.s.i.)1 110513-200 pressure relief valve (200 p.s.i.)2 113566 discharge tube4 111265 ferrule/sleeve

20 H.P6 110258B103 drive belt2 110476 motor pulley2 8936 motor pulley bushing2 113229 belt guard assembly

200v, 3Ø 230/460v, 3Ø2 40658 5177 20 h.p. motor (O.D.P.)

(QR 390 duplex - horizontal tank - electric motor)

The parts listed here are for standard QR 390 (up to 175 p.s.i.) units and may or may not be applicable to custom built units. Check withyour local authorized Quincy Compressor Distributor for parts that can be used for custom built units. Make sure the components you orderare rated within the safe operating limits of your system. If you are doubtful about which components to order, contact you local Quincydistributor.

Part numbers shown in italics apply to tank mounted units and base mounted units.

§ 2298-175 pressure switch for base mounted units.

§

Quincy Service is always near.There are authorized QuincyDistributors located throughoutthe United States & Canada thatstock genuine Quincy parts &accessories for a wide range ofQuincy products.

Quincy Service specialists arefactory trained and will help keepyou in business. Call forAuthorized Quincy Service.

QuincyCompressor®

Reciprocating / Systems: 217.222.7700Rotary / Vacuum / Systems: 334.937.5900Nearest Distributor: 888.424.7729E-mail: [email protected]: www.quincycompressor.com

T r u e B l u e R e l i a b i l i t y TM

© 2000 Quincy Compressor a BFGoodrich Company BusinessAll Rights Reserved. Litho in U.S.A.

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