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Pneumatic Reversible Drill 

#505620, JAT-620 
#505621, JAT-621 

 
 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operation & Parts Manual 

M-505620 

Edition 2 

06/2015 

 
 

JET 

427 New Sanford Road 

LaVergne, TN 37086 

Ph.: 800-274-6848 

www.jettools.com 

 

 

Copyright © 2015 JET 

 JAT-621 shown 

Summary of Contents for JAT-620

Page 1: ...c Reversible Drill 505620 JAT 620 505621 JAT 621 Operation Parts Manual M 505620 Edition 2 06 2015 JET 427 New Sanford Road LaVergne TN 37086 Ph 800 274 6848 www jettools com Copyright 2015 JET JAT 62...

Page 2: ...th 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: ...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 o...

Page 5: ...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 A...

Page 6: ...reverse Power setting Variable speed trigger Variable speed trigger Grip Pistol style Pistol style Overall Length 7 5 8 in 193 68 mm 8 5 8 in 219 08 mm Housing material Composite Composite Net weight...

Page 7: ...he connection to fail Instead add a leader hose and install any quick change couplings farther down the line 3 Insert chuck key into one of the holes on the chuck so it meshes with teeth on drill chuc...

Page 8: ...ize tool for the job Poor maintenance practices such as using excessive air pressure or air volume Improper or no lubrication Rule of Thumb If it takes more than 8 seconds to tighten or loosen a bolt...

Page 9: ...the environment Your tool contains materials which can be recovered or recycled When its useful life has expired please leave tool at a specialized facility Figure 2 Recommended arrangement of air pip...

Page 10: ...tion Bearings worn Disassemble and inspect bearing Grease or replace as needed Loss of power erratic action Low air pressure Verify compressor has proper CFM rating for tool Check compressor regulator...

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 620 621 Pneumatic Drill 505620 JAT 620 3 8 inch Pneumatic Drill exploded view...

Page 13: ...16 80216 Rotor vane 5 17 JSM7572 17 Pin 1 18 JAT610 18 Cylinder 1 19 80219 Front end plate 1 Index Part No Description Qty 20 40309 Screw TS2 9 2 21 JAT620 21 Ring 1 22 80222 Internal gear 1 23 JAT620...

Page 14: ...14 JAT 620 621 Pneumatic Drill 505621 JAT 621 1 2 inch Pneumatic Drill exploded view...

Page 15: ...nder 1 19 80219 Front end plate 1 20 SM 70420 Pinion gear 2 Index Part No Description Qty 21 80211 Motor gasket 1 22 80222 Internal gear 1 23 SM 70423 Planet gear 6 24 30124 Pin 4x13 8L 6 25 70425 Bus...

Page 16: ...16 JAT 620 621 Pneumatic Drill 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com...

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