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ITEM  PART 

DESCRIPTION                  

QTY.

07600 

Crankcase 

1

1A 

05525 

Head for Oil Dipstick 

1

1B 

01009 

O-Ring 

1

13000 

Oil Filler Plug Assy. 

1

07601 

Crankcase Cover 

1

05798 

Gasket,Crankcase Cover 

1

07603 

Oil Dip Stick 

1

01009 

O-Ring, Dip Stick 

1

10 

22706 

Hexagon Screw 

8

11 

06725 

Spring Washer 

8

12 

07109 

Drain Plug 

7

13 

07182 

Gasket, Drain Plug 

2

14 

05644 

Bearing Cover 

2

15 

07608 

Radial Shaft Seal 

2

16 

07184 

O-Ring 

2

17 

05642 

Inner Hexagon Screw 

8

18 

05039 

Spring Washer 

8

20 

07610 

Taper Roller Bearing 

2

20A 

07611 

Fitting Disc (Shim)                      1-5 

21 

05645 

Holder for Shaft Protector 

1

21A 

05646 

Shaft Protector 

1

22 

13405 

Crankshaft 

1

23 

07614 

Key 

1

24 

13182 

Connecting Rod Assy. 

3

25 

13183 

Crosshead Assy. 

3

28 

13184 

Crosshead Pin 

3

30 

07619 

Cover Plate 

1

30A 

07225-0100  Hexagon Screw 

8

30B 

13136 

Grommet 

4

30C 

05053 

Disc 

8

30D 

13154 

Cover Plate 

1

31 

07623 

Eye Bolt 

1

32 

07624 

Radial Shaft Seal 

3

33 

07626 

Seal Retainer 

3

33A 

07627 

O-Ring  

3

33B 

07628 

Circlip 

3

33C 

07249 

Fitting Disc 

3

34 

13137 

Oil Scraper 

3

36 

06165A 

Plunger Pipe Assembly 

 

 

(36A-D), GP7145 

3

36 

06165A-SS  Plunger Pipe Assembly 

 

 

(36A-D), GP7145-SSP 

3

36 

07706 

Plunger Pipe Assembly

 

 

(36A-D), GP7255A 

3

36 

07706-SS  Plunger Pipe Assembly

 

 

(36A-D), GP7255A-SSP 

3

36A 

07667 

Plunger Connection 

3

36B 

05157A 

Plunger Pipe, GP7145 

3

36B 

05157A-SS  Plunger Pipe, GP7145-SSP 

3

36B 

07666 

Plunger Pipe, GP7255A 

3

36B 

07666-SS  Plunger Pipe, GP7255A-SSP 

3

36C 

07664 

Tension Screw 

3

36D 

07665 

Copper Ring 

3

38 

06167 

Seal Case, GP7145(-SSP) 

3

38 

13155 

Seal Case, GP7255A(-SSP) 

3

38A 

13156 

O-Ring for 38 

3

38B 

06258 

O-Ring for 38, GP7145(-SSP)  3

PARTS LIST - GP7145(-SSP) and GP7255A(-SSP)

7

ITEM  PART 

DESCRIPTION                  

QTY.

38B 

07721 

O-Ring for 38, GP7255A(-SSP)  3

39 

06171 

Seal Sleeve, GP7145(-SSP) 

3

39 

13157 

Seal Sleeve, GP7255A(-SSP)  3

39A 

13290 

Grooved Ring, GP7145(-SSP)  3

39A 

07723 

Grooved Ring, GP7255A(-SSP)  3

40 

07797 

Support Disc, 

 

 

GP7255(-SSP) only 

3

41 

13296 

Support Ring, GP7145(-SSP) 

3

41 

13158 

Support Ring, GP7255A(-SSP)  3

42 

13294 

V-Sleeve, GP7145(-SSP) 

9

42 

07711 

V-Sleeve, GP7255A(-SSP) 

6

43 

13293 

Pressure Ring, GP7145(-SSP)  3

43 

07712 

Pressure Ring, GP7255A(-SSP)  3

45 

13297 

Tension Spring, 

 

 

GP7145(-SSP) only 

3

49 

13159 

Stud Bolt 

8

49A 

13160 

Hexagon Nut 

8

50 

07791 

Valve Casing 

1

50A 

13162 

Cylinder Stud 

2

51 

05594 

Inlet Valve Assembly 

 

 

(51A-51F) 

3

51A 

05595 

Sping Tension Cap 

6

51B 

05450  

Valve Spring 

6

51C 

05247 

Valve Plate 

6

51D 

05596 

O-Ring 

6

51E 

05597 

Inlet Valve Seat 

3

51F 

05166 

O-Ring 

3

52 

05600 

Discharge Valve Assembly 

3

52A 

05595 

Spring Tension Cap 

3

52B 

05450 

Valve Spring 

3

52C 

05247 

Valve Plate 

3

52D 

05596 

O-Ring 

3

52E 

05598 

Discharge Valve Seat 

3

52F 

05599 

O-Ring 

3

53 

22610 

Plug 

3

55 

05647 

Valve Spacer 

3

56A 

07658 

O-Ring 

3

56B 

07635 

Support Ring 

3

57 

13173 

Tension Spring 

3

58 

06682 

Plug, M64 x 2 

3

59A 

07661 

Copper Ring for 12 

5

60 

12251 

Plug, 1-1/4” NPT 

1

61 

05170 

Plug, 2-1/2” NPT 

1

66 

13362 

Disc For Crankshaft 

1

67 

13358 

Hexagon Screw 

1

 

07662 

Valve Tool (Not Shown) 

1

 

05210A 

Plunger Conversion Assembly

 

 

(36-45), GP7145 

1

 

05210A-SS  Plunger Conversion Assembly

 

 

(36-45), GP7145-SSP 

1

 

05211 

Plunger Conversion Assembly

 

 

(36-45), GP7255 

1

 

05211-SS  Plunger Conversion Assembly

 

 

(36-45), GP7255A-SSP 

1

 

17204 

Valve Casing Assembly,

 

 

(5x12, 13, 50-61 w/o 50A) 

1

 

17212 

Crankcase Assembly,

 

 

(2x12/1-34/49/49A/52A/66/67)  1

 

Summary of Contents for GP7145

Page 1: ...ns GP7255A page 5 Exploded View page 6 Parts List page 7 Kits Torque Specifications page 8 Repair Instructions page 9 Troubleshooting Guide page 10 Dimensions page 11 Warranty Information back page Tr...

Page 2: ...ion is to be considered as a general outline for instal lation If you have unique requirements please contact Giant Industries Inc or your local distributor for assistance 1 The pump should be install...

Page 3: ...ged if condensate or frothy oil occurs in crankcase 2 Pump operation must not exceed rated pressure volume or RPM A pres sure relief device must be installed in the discharge of the system 3 Acids alk...

Page 4: ...inuous 750 RPM Speed Intermittent 947 RPM Inlet Pressure maximum 145 PSI 10 bar Plunger Diameter 1 77 45mm Plunger Stroke 2 0 52mm Crankshaft Diameter 1 9 48mm Key Width 0 6 14mm Crankshaft Mounting E...

Page 5: ...Speed Continuous 700 RPM Speed Intermittent 851 RPM Inlet Pressure maximum 145 PSI 10 bar Plunger Diameter 2 17 55mm Plunger Stroke 2 0 52mm Crankshaft Diameter 1 9 48mm Key Width 0 6 14mm Crankshaft...

Page 6: ...6 Exploded View GP7145 SSP and GP7255A SSP...

Page 7: ...38A 13156 O Ring for 38 3 38B 06258 O Ring for 38 GP7145 SSP 3 PARTS LIST GP7145 SSP and GP7255A SSP 7 ITEM PART DESCRIPTION QTY 38B 07721 O Ring for 38 GP7255A SSP 3 39 06171 Seal Sleeve GP7145 SSP 3...

Page 8: ...Radial Shaft Seal Loctite 403 36A 07667 Plunger Connection 33 ft lbs 45 Nm 36C 07664 Tension Screw Loctite 243 30 ft lbs 40 Nm 49 13159 Stud Bolt Loctite 270 49A 13160 Hexagon Nut 103 ft lbs 140 Nm 5...

Page 9: ...ge becomes too heavy and causes output and operating pressure to drop MOUNTING VALVE CASING Check O rings 38A 38B on the seal case 38 Clean surfaces of seal sleeves in gear box and sealing surfaces of...

Page 10: ...Check inlet lines for restrictions and or proper sizing Rough Pulsating Operation with Pressure Drop Worn packing Replace packing Inlet restriction Check system for stoppage air leaks correctly sized...

Page 11: ...GP7145 SSP and GP7255A SSP Dimensions Inches mm 11 NPT NPT...

Page 12: ...third party 2 Normal wear and tear to standard wear parts 3 Use of repair parts other than those manufactured or authorized by Giant 4 Improper use of the product as a component part 5 Changes or modi...

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