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QT-7.5 Air Master

Quincy  Compressor

50121M201, May 2001

3

3501 Wismann Lane, Quincy IL 62305-3116

CRANKSHAFT  GROUP

Electric Motor Driven Group # 113684-002 - Engine Driven Group # 113684-004

Item

Part

Number

Qty.

Number

Description

1

1

113602X002

crankshaft  assembly  (includes  items  2,  3  &  4)

2

1

113602-002

crankshaft  (N.S.S.;  order  113602X002)

3

1

111107

ball  bearing

4

1

111780

ball  bearing

5

1

113944

sheave,  14.16  o.d.,  1  groove,  B  section,  CCW  rotation

OR

5

1

113944-001

sheave,  14.16  o.d.,  2  groove,  B  section,  CCW  rotation

6

2

110428N075

flatwasher,  3/4

7

1

114041

hex.  nut,  3/4  -16  unf,  left  hand  thread

N.S.S.  =  Not  Sold  Separate
*  For  electric  motor  driven  models  (1  groove  sheave)
**  For  engine  driven  models  (2  groove  sheave)

*

**

Summary of Contents for Air Master QT Series

Page 1: ...erate 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 Manual No...

Page 2: ...cement kits Changedtankdrainvalvefromcableoperatedtoballvalve operated Changedthrottlecontrolonenginedrivenunitstobullwhip cable style Changed Kohler engine driven base units from head unloader style...

Page 3: ...ompressor in the corre sponding spaces provided here and reference this page when ordering replacement parts All replacement parts are to be ordered through an authorized Quincy Compressor Distributor...

Page 4: ...assembly includes items 2 3 4 2 1 113602 002 crankshaft N S S order 113602X002 3 1 111107 ball bearing 4 1 111780 ball bearing 5 1 113944 sheave 14 16 o d 1 groove B section CCW rotation OR 5 1 113944...

Page 5: ...40 002 crankcase 2 1 2276 pipe plug 3 4 npt 3 2 2057 pipe plug 1 2 npt 4 1 113736 050 sight glass 1 2 npt 5 1 113755 gasket bearing carrier 6 1 113942 bearing carrier assembly 7 5 115037 L14 hex screw...

Page 6: ...QT 7 5 Air Master Quincy Compressor 50121M201 May 2001 5 3501 Wismann Lane Quincy IL 62305 3116 CONNECTING ROD PISTON GROUP 114192 low pressure...

Page 7: ...on ring 9 1 7351 piston ring 10 2 112781 oil ring rail 11 1 112780 oil ring expander 8643 010 low pressure piston 010 oversize 8643 020 low pressure piston 020 oversize 114209 Piston Ring Set standard...

Page 8: ...QT 7 5 Air Master Quincy Compressor 50121M201 May 2001 7 3501 Wismann Lane Quincy IL 62305 3116 CONNECTING ROD PISTON GROUP 114193 high pressure...

Page 9: ...110190 010 piston pin N S S order 114420 051 7 2 111105 002 piston pin plug 8 1 113991 piston 9 3 1652 piston ring 10 2 111281 oil ring rail 11 1 111280 oil ring expander 1 113991 010 high pressure p...

Page 10: ...QT 7 5 Air Master Quincy Compressor 50121M201 May 2001 9 3501 Wismann Lane Quincy IL 62305 3116 CYLINDER HEAD GROUP 113685 002 less head unloaders...

Page 11: ...unc x 1 00 grade 8 13 4 112373 J02 hex nut 1 4 20 unc 14 1 113618 002 gasket valve plate to cylinder head 15 1 113613M001 cylinder head plain 16 6 114595N038 hardened flatwasher 3 8 17 6 114440 L22 he...

Page 12: ...QT 7 5 Air Master Quincy Compressor 50121M201 May 2001 11 3501 Wismann Lane Quincy IL 62305 3116 CYLINDER HEAD GROUP 113685 003 with head unloaders...

Page 13: ...linder head unloader 16 6 114595N038 hardened flatwasher 3 8 17 6 114440 L22 hex screw 3 8 16 unc x 3 25 grade 9 18 1 113943 gasket cylinder to crankcase 19 1 2961 100 pressure relief valve 20 6 11503...

Page 14: ...valve pressure gauge release valve pressure switch check valve discharge line pressure gauge relief valve check valve discharge line to low and high pressure head unloaders pilot valve Pilot valve is...

Page 15: ...p s i 40 2 5 60 3 10 100 4 20 150 5 30 175 5 45 Applies to 110998 series pilot valves only Differential Setting Chart Dash Load PSI Unload PSI 100 90 100 997 30 70 adjustable 998 71 150 adjustable 99...

Page 16: ...s sure to the unloading arrangement Continuous Run Operation Suction valve unloader assemblies are recommended for use on Quincy compressors where the compressor is to run continuously and a constant...

Page 17: ...90 010 piston pin 1 110190 016 piston pin 1 111333 crankcase breather 1 113936 001 connecting rod assembly LP 1 113936 003 connecting rod assembly HP Overhaul Kit KQT75G Item Part Qty Number Descripti...

Page 18: ...top plate 1 111136 050 111136 050 tank drain valve 1 111136 100 111136 100 service valve 1 110514 300 110514 300 pressure gauge 2 110512 005 110512 005 pressure switch 135 175 p s i 1 110513 200 1105...

Page 19: ...110425 025 110425 050 tank drain valve 1 111136 075 111136 075 ball valve 1 110514 300 110514 300 pressure gauge 1 110512 005 110512 005 pressure switch 135 175 p s i 1 110513 200 110513 200 pressure...

Page 20: ...engine group 10 h p includes throttle control 2 5 ft 110515 075 discharge tube 3 4 copper tube to be formed by customer 2 110948 075 tube fitting nut with sleeve 1 111089 215 pressure relief valve in...

Page 21: ...ies for a wide range of Air Master products Quincy Air Master Service specialists are factory trained and will help keep you in business Call for Authorized Quincy Air Master Service See how Quincy Ai...

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