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JET   

13 

 

#505300, JAT-300, 1/4-inch Ratchet Wrench – parts list 

Index Part 

No. 

Description 

Qty 

1 JAT300-01 Housing 

2 SM-30102 Spring 

pin 

3x24L 

3 JAT300-03 Air 

inlet 

4 JAT300-04 Throttle 

lever 

5 JAT300-05 Valve 

pin 

4x17.8L 

6 JAT300-06 Valve 

7 JAT300-07 Throttle 

valve 

8 JAT300-08 Spring 

9 SM-40134 O-Ring 

7.65x1.78 

10 JAT300-10 Valve 

plug 

11 JAT300-11 Needle 

bearing 

6x10x9 

12 

JAT101-17 

Spring pin 2.5x5L 

13 

JAT300-13 

Retaining ring STW-6 

14 JAT300-14 Rear 

end 

plate 

15 JAT300-15 Rotor 

16 JAT300-16 Rotor 

vane 

17 JAT300-17 Needle 

bearing 

HK0910 

18 JAT300-18 Cylinder 

19 JAT300-19 Front 

end 

plate 

20 

BB-608ZZ 

Ball bearing 608ZZ 

21 JAT300-21 Planet 

gear 

carrier 

22 JAT300-22 Ring 

gear 

23

 

JAT300-23

 

Planet gear

 

3

 

Index Part No.

 

Description

 

Qty

24 JAT300-24 Clamp 

nut 

25 JAT300-25 

Ratchet housing assembly 
(includes #17,29-44) 

26 JAT300-26 Pin 

3x12.8L 

27 

JSM4140-27 Spring pin 1.5x4L 

28 SM-63036  O-Ring 

3x1.5 

29 JAT300-29 Crank 

shaft 

30 JAT300-30 Washer 

31 JAT300-31 Drive 

bushing 

32 JAT300-32 Yoke 

33 JAT300-33 Direction 

switch 

34 JAT300-34 Spring 

35 JAT300-35 Spring 

cap 

36 

SB-3MM 

Steel ball 3mm 

37 JAT300-37 Ratchet 

pawl 

38 

JAT300-38 

Ratchet anvil 1/4in. 

39 JAT300-39 Spring 

40 

JAT300-40 

Pin 3.3 x 8.8 

41 JAT300-41 Thrust 

washer 

42 52827 

Retainer 

ring 

RTW22 

43 

70117 

Spring pin 2x5L 

44 JAT300-44 Bushing 

JAT300-RPK, Repair Kit, contains  7,8,9,16(4),28,34(2),36(2),41,42 

JAT300-RBK, Rebuild Kit, contains  14,19,23(3),30,31,35,37,39  

 

 

 

 

Summary of Contents for 505300

Page 1: ...chet Wrench 505300 JAT 300 505301 JAT 301 505302 JAT 302 Operation Parts Manual M 505300 Edition 2 06 2015 JET 427 New Sanford Road LaVergne TN 37086 Ph 800 274 6848 www jettools com Copyright 2015 JET JAT 301 shown ...

Page 2: ...t with 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 Center Locator on the JET website More Information JET is constantly adding new products For complete up to date product information check with your local distributor or visit the JET website How...

Page 3: ...hromium 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 with approved safety equipment such as face or dust masks that are specifically designed to filter out microscopic particles 9 Do not operate an air tool continually at full throttle without a work loa...

Page 4: ...proper caution 30 Use only recommended accessories improper accessories may be hazardous 31 Maintain tools with care Keep air tool clean and oiled for best 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 lubricate the tool with combustible liquids such as k...

Page 5: ...set forth 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 sense As with any tool operation safety of operator and bystanders should be first priority If there are questions or comments please contact your local supplier or JET JET can also be reached at o...

Page 6: ...621 kPa 90 psi 621 kPa Vibration value 4 4 m s2 4 5 m s2 2 6 m s2 Noise level 1 99 dB A 108 dB A 87 dB A Rotation direction forward and reverse forward and reverse forward and reverse Grip Inline Inline Inline Overall Length 6 9 16 in 166 7mm 10 1 2 in 266 7 mm 10 1 2 in 266 7 mm Housing material Aluminum Aluminum Aluminum Net weight 1 14 lb 0 52 kg 2 60 lb 1 18 kg 2 63 lb 1 19 kg Shipping weight ...

Page 7: ...reverse rotation 2 Place socket over nut and grip tool firmly with both hands 3 Gently squeeze throttle lever Pressure against throttle lever determines speed of ratchet wrench Important If tool cannot loosen nut DO NOT raise air pressure above 90 psi Use other methods or tools to loosen nut 4 Release throttle lever to stop ratchet wrench To tighten nut or bolt 1 Install nut as far as possible by ...

Page 8: ...creased accordingly to compensate for extra long air hoses usually over 25 feet Inside diameter of hose should be minimum 3 8 inch General Air Tool Information If the air tool is not performing according to specifications the following are among the most common causes See also Troubleshooting section Contaminated air such as a dirty air system or water in the system Using wrong size tool for the j...

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 front case components on air impact wrenches grinders and sanders Recycling Protect the environment Your tool contains materials which can be recovered or recycled When its useful life has expired please...

Page 10: ...erratic action Low air pressure Verify compressor has proper CFM rating for tool Check compressor regulator setting set air pressure to 90 psi Check for loose connections Moisture or obstruction in air hose Air supply must be clean and dry Clean out air hose s and remove any kinks or bends Improper size of air transmission lines hoses fittings or couplings Use appropriate sized air lines hoses Ver...

Page 11: ...ollowing 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 when you call so that we may serve you quickly and accurately ...

Page 12: ...12 JAT 300 301 302 Ratchet Wrenches 505300 JAT 300 1 4 inch Ratchet Wrench exploded view ...

Page 13: ...ing 608ZZ 1 21 JAT300 21 Planet gear carrier 1 22 JAT300 22 Ring gear 1 23 JAT300 23 Planet gear 3 Index Part No Description Qty 24 JAT300 24 Clamp nut 1 25 JAT300 25 Ratchet housing assembly includes 17 29 44 1 26 JAT300 26 Pin 3x12 8L 3 27 JSM4140 27 Spring pin 1 5x4L 1 28 SM 63036 O Ring 3x1 5 1 29 JAT300 29 Crank shaft 1 30 JAT300 30 Washer 1 31 JAT300 31 Drive bushing 1 32 JAT300 32 Yoke 1 33...

Page 14: ...14 JAT 300 301 302 Ratchet Wrenches 505301 JAT 301 3 8 inch Ratchet Wrench exploded view ...

Page 15: ...M 30121 Washer 1 22 SM 30122 Ring gear 1 23 SM 30123 Planet gear 3 Index Part No Description Qty 24 30124 Pin 4x13 8 3 25 SM 30125 Planet gear carrier 1 26 SM 30126 Clamp nut 1 27 SM 30127 Bushing 1 28 SM 30128 Ratchet housing 1 29 SM 30129 Bushing 1 30 SM 30130 Crank shaft 1 31 SM 30131 Drive bushing 1 32 SM 30132 Yoke 1 33 SM 30133 Direction switch 1 34 SM 30134 Spring 1 35 SM 30135 Spring cap 1...

Page 16: ...16 JAT 300 301 302 Ratchet Wrenches 505302 JAT 302 1 2 inch Ratchet Wrench exploded view ...

Page 17: ... 30121 Washer 1 22 SM 30122 Ring gear 1 23 SM 30123 Planet gear 3 Index Part No Description Qty 24 30124 Pin 4x13 8 3 25 SM 30125 Planet gear carrier 1 26 SM 30126 Clamp nut 1 27 SM 30127 Bushing 1 28 SM 30128 Ratchet housing 1 29 SM 30129 Bushing 1 30 SM 30130 Crank shaft 1 31 SM 30131 Drive bushing 1 32 SM 30132 Yoke 1 33 SM 30133 Direction switch 1 34 SM 30134 Spring 1 35 SM 30135 Spring cap 1 ...

Page 18: ...18 JAT 300 301 302 Ratchet Wrenches This page intentionally left blank ...

Page 19: ...JET 19 This page intentionally left blank ...

Page 20: ...20 JAT 300 301 302 Ratchet Wrenches 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com ...

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