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4-Bolt Chipping Hammer 

#550620, JCT-3620A 
#550621, JCT-3621A 
#550622, JCT-3622A 
#550623, JCT-3623A 

 
 
 

 

 

Operation & Parts Manual 

M-550620 

Edition 5 

04/2021 

 

 
 

JET 

427 New Sanford Road 

La Vergne, TN 37086 

Ph.: 800-274-6848 

www.jettools.com 

 

 

Copyright © 2017 JET 

Summary of Contents for JCT-3620A

Page 1: ...mmer 550620 JCT 3620A 550621 JCT 3621A 550622 JCT 3622A 550623 JCT 3623A Operation Parts Manual M 550620 Edition 5 04 2021 JET 427 New Sanford Road La Vergne TN 37086 Ph 800 274 6848 www jettools com...

Page 2: ...and placing the tip against the work surface 11 Do not operate air tool without its guards in place Do not modify the tool 12 Do not operate this tool while tired or under the influence of drugs alco...

Page 3: ...er training and knowledge have been obtained 35 Make sure chisel has appropriate shank with oval collar and dimensions for this chipping hammer 36 Always secure tool in retainer and place end of tool...

Page 4: ...eakdown Your tool has been designed and constructed to provide consistent long term operation if used in accordance with the instructions set forth in this document The instructions and warnings in th...

Page 5: ...es 30 1 Joules Vibration value 15 73 m s2 15 73 m s2 16 08 m s2 16 08 m s2 Noise level 1 96 dB A 96 dB A 96 dB A 96 dB A Speed settings Variable throttle Variable throttle Variable throttle Variable t...

Page 6: ...nto groove until completely installed If needed spray lubricant into groove to facilitate spring insertion An unsecured tool can be ejected from the cylinder with force causing injury Retainer and loc...

Page 7: ...serve the working area Excessive hose length will cause pressure drop 2 Make sure air compressor supplies clean dry air at correct CFM for the tool 3 Set air pressure to 90 psi Excess air pressure an...

Page 8: ...moisture traps and in line oilers on each downline that is to be used for air tools See Figure 3 Place oiler as close to air tool as possible for best lubrication Lubrication Use a light oil containi...

Page 9: ...power 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 at air inlet O rings et...

Page 10: ...848 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 Non proprietary p...

Page 11: ...3620A 12 Retainer Spring 1 13 JCT3620A 13 Nut 4 14 JCT3620A 14 Seat Valve 1 Index Part No Description Qty 15 JCT3620A 15 Spacer 4 16 JCT3620A 16 Piston 1 17 JCT3620A 17 Flange Bolts 4 18 JCT3620A 18 E...

Page 12: ...tainer 1 12 JCT3620A 12 Retainer Spring 1 13 JCT3620A 13 Nut 4 14 JCT3620A 14 Seat Valve 1 Index Part No Description Qty 15 JCT3620A 15 Spacer 4 16 JCT3620A 16 Piston 1 17 JCT3620A 17 Flange Bolts 4 1...

Page 13: ...3620A 12 Retainer Spring 1 13 JCT3620A 13 Nut 4 14 JCT3620A 14 Seat Valve 1 Index Part No Description Qty 15 JCT3620A 15 Spacer 4 16 JCT3622A 16 Piston 1 17 JCT3620A 17 Flange Bolts 4 18 JCT3620A 18 E...

Page 14: ...tainer 1 12 JCT3620A 12 Retainer Spring 1 13 JCT3620A 13 Nut 4 14 JCT3620A 14 Seat Valve 1 Index Part No Description Qty 15 JCT3620A 15 Spacer 4 16 JCT3622A 16 Piston 1 17 JCT3620A 17 Flange Bolts 4 1...

Page 15: ...tional 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 Loc...

Page 16: ...16 JCT 3620A Series Chipping Hammers 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com...

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