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JET  

13 

 

#505450, JAT-450, 4-inch Angle Grinder – parts list 

Index Part No. 

Description 

Qty 

1 JAT450-01  Motor 

housing 

SM-30102 

Spring pin 3x24L 

3 JAT450-03  Air 

inlet 

4 JSM5130-04 Throttle 

lever 

 JSM5130-04A 

Throttle lever assembly (incl. 
#4,50,51,52) 

5 JAT450-05  Pin 

6 JSM7572-145 

Rubber 

spacer 

7 JAT450-07  O-Ring 

4.9x2.2 

8 73108 

Spring 

10 JSM7572-146 Valve 

stem 

12 JAT450-12  Plunger 

13  BB-608ZZ 

Ball bearing 608ZZ 

14 JAT450-14  Rear 

plate 

15 JAT450-15  Rotor 

16 JAT450-16  Rotor 

vane 

17  JAT450-17 

Spring pin 2.5x12 

18 JAT450-18  Cylinder 

19 JAT450-19  Front 

end 

plate 

20  BB-6201Z 

Ball bearing 6201Z 

21 JAT450-21  Gasket 

22

 

JAT450-22

 

Bevel gear 

23 JAT450-23  Gear 

housing 

24 TS-2361051  Spring 

washer 

M5 

25  JHM610-54 

Soc hd cap screw M5x18 

26 JAT450-26  Spacer 

27  TS-2246102 

Soc hd button screw M6x10 

28  BB-626ZZ 

Ball bearing 626ZZ 

29  JAT450-29 

Retaining ring STW-10 

30 JAT450-30  Bevel 

gear 

31 JAT450-31  Wave 

washer 

WW-10 

32  BB-6202ZZ 

Ball bearing 6202ZZ 

33 JAT450-33  Spindle 

3/8-24UNF 

34 JAT450-34  Key 

3x13 

35 JAT450-35  Spacer 

36 JAT450-36  Bearing 

cap 

Index Part No. 

Description 

Qty

37 JAT450-37  Disc 

cover 

38 JAT450-38  Flange 

3/8-24UNF 

39  61048 

Spring pin 2.5x8 

40  JAT450-40 

Flange nut 3/8-24UNF 

41 JAT450-41  Adjust 

screw 

42 JAT450-42  Adjust 

nut 

43  TS-1502041 

Soc hd cap screw M5x16L 

44 JAT450-44  Inlet 

guide 

45 JAT450-45  Spring 

46 JAT450-46  Governor 

47 JAT450-47  Pendulum 

48  40317-13 

Spring pin 3x12L 

49 JAT450-49  O-Ring 

13.5x1.5 

50 JSM5130-41  Spring 

51 JSM5130-40  Safety 

lever 

52  51542 

Spring pin 2x18 

53 JAT450-53  Exhaust 

diffuser 

54 JAT450-54  Dead 

handle 

55 JAT450-55  Pin 

wrench 

56 JAT450-56  Retaining 

ring 

ISTW-7 

57 JAT450-57  Bushing 

58 52236 

O-Ring 

10.5x1 

59 JAT450-59  Spring 

60 JAT450-60  Spindle 

stop 

button 

61  JAT450-61 

Set screw M5x8 

66 JAT450-66  O-Ring 

29.5x2 

68 JAT450-68  Spring 

69 JAT450-69  Lock 

ring 

70 JAT450-70  Disc 

spring 

71  JAT450-71 

Retainer ring STW-27 

79 JAT450-79  Felt 

oiler 

80 JAT450-80  Brace 

81 JAT450-81  Washer 

82  JAT450-82 

Grease fitting 1/8in. 

 

JAT450- RPK  Repair Kit, contains 7,16(4),21,49,56,57,58,59,60,66 

JAT450-RBK  Rebuild Kit, contains  20,22,30,32,33

 

 

 

Summary of Contents for JAT-451

Page 1: ...Pneumatic Angle Grinder 505450 JAT 450 505451 JAT 451 Operation Parts Manual M 505450 Edition 2 06 2015 JET 427 New Sanford Road LaVergne TN 37086 Ph 800 274 6848 www jettools com Copyright 2015 JET...

Page 2: ...h any additional action needed JET has Authorized Service Centers located throughout the United States For the name of an Authorized Service Center in your area call 1 800 274 6846 or use the Service...

Page 3: ...romium from chemically treated lumber Your risk of exposure varies depending on how often you do this type of work To reduce your exposure to these chemicals work in a well ventilated area and work wi...

Page 4: ...t and safest performance 32 Do not use combustible gases carbon dioxide oxygen or any bottled gas as an air source for the tool These can present risk of explosion and serious injury 33 Do not lubrica...

Page 5: ...rth in this document The instructions and warnings in this manual may not encompass all possible workplace environments The operator is expected to take appropriate precautions and exercise common sen...

Page 6: ...A Speed settings Variable throttle lever Variable throttle lever Overall length 9 3 8 in 238 13 mm 9 3 8 in 238 13 mm Housing material Aluminum with composite grip Aluminum with composite grip Net we...

Page 7: ...re 2 6 Blow out air line to remove any dirt or moisture then connect air supply hose to tool Set air pressure to 90 psi IMPORTANT Connecting a quick change coupling directly to the tool is not recomme...

Page 8: ...line may enter the tool and cause damage 5 Change filters on the air system on a regular basis 6 Air line pressure may be increased accordingly to compensate for extra long air hoses usually over 25 f...

Page 9: ...such as SAE 10 Many JET air tools have integral oil reservoirs which should be kept filled when in line oilers are not used If greasing is required use a grease that is highly water resistant for fron...

Page 10: ...Lubricate properly according to instructions in this manual Bearings worn Disassemble and inspect bearing Grease or replace as needed Loss of power erratic action Low air pressure Verify compressor ha...

Page 11: ...llowing pages To order parts or reach our service department call 1 800 274 6848 Monday through Friday 8 00 a m to 5 00 p m CST Please have the stock number and serial number of your tool available wh...

Page 12: ...12 JAT 450 451 Angle Grinder 505450 JAT 450 4 inch Angle Grinder exploded view...

Page 13: ...3 JAT450 33 Spindle 3 8 24UNF 1 34 JAT450 34 Key 3x13 1 35 JAT450 35 Spacer 1 36 JAT450 36 Bearing cap 1 Index Part No Description Qty 37 JAT450 37 Disc cover 1 38 JAT450 38 Flange 3 8 24UNF 1 39 6104...

Page 14: ...14 JAT 450 451 Angle Grinder 505451 JAT 451 5 inch Angle Grinder exploded view...

Page 15: ...1 33 JAT451 33 Spindle 5 8 11UNC 1 34 JAT450 34 Key 3x13 1 35 JAT450 35 Spacer 1 36 JAT450 36 Bearing cap 1 Index Part No Description Qty 37 JAT451 37 Disc cover 1 38 JAT451 38 Flange 5 8 11UNC 1 39 6...

Page 16: ...16 JAT 450 451 Angle Grinder 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848...

Page 17: ...JET 17 www jettools com...

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