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JET   

 

Tool Specifications

 

Model number 

JCT-3620A 

JCT-3621A 

JCT-3622A 

JCT-3623A 

Stock number 

550620 

550621 

550622 

550623 

Shank bushing style 

Round 

Hex 

Round 

Hex 

Shank bushing size 

0.680 in. 

0.580 in. 

0.680 in. 

0.580 in. 

Stroke length 

3 in. 

3 in. 

4-1/4 in. 

4-1/4 in. 

Bore size 

1-1/8 in. 

1-1/8 in. 

1-1/8 in. 

1-1/8 in. 

Impact rate  

2,300 BPM 

2,300 BPM 

1,700 BPM 

1,700 BPM 

Actual air consumption 

27.6 CFM 

27.6 CFM 

30 CFM 

30 CFM 

Average air consumption  6.9 CFM 

6.9 CFM 

7.5 CFM 

7.5 CFM 

Air Inlet 

3/8 in. NPT 

3/8 in. NPT 

3/8 in. NPT 

3/8 in. NPT 

Air hose minimum inside 
diameter  

1/2 in. 

1/2 in. 

1/2 in. 

1/2 in. 

Required air pressure 

90 psi (6.2 bar) 

90 psi (6.2 bar) 

90 psi (6.2 bar) 

90 psi (6.2 bar) 

Energy per blow @90psi  21.3 Joules 

21.3 Joules 

30.1 Joules 

30.1 Joules 

Vibration value 

15.73 m/s

2

 

15.73 m/s

2

 

16.08 m/s

2

 

16.08 m/s

2

 

Noise level 

1

 

96 dB(A) 

96 dB(A) 

96 dB(A) 

96 dB(A) 

Speed settings 

Variable throttle 

Variable throttle 

Variable throttle 

Variable throttle 

Overall length 

14.5 in. (369 mm)  14.5 in. (369 mm)  16.08 in. (426mm)  16.08 in. (426mm) 

Housing material 

Steel 

Steel 

Steel 

Steel 

Net weight  

17 lb (7.7 kg) 

17 lb (7.7 kg) 

19 lb (8.9 kg) 

19 lb (8.9 kg) 

Shipping weight 

19 lb (8.3 kg) 

19 lb (8.3 kg) 

21 lb (9.3 kg) 

21 lb (9.3 kg) 

1

 The specified values are emission levels and are not necessarily to be seen as safe operating levels. As 

workplace conditions vary, this information is intended to allow the user to make a better estimation of the 
hazards and risks involved only. 

 

 

Specifications were current at time of publication, but because of our policy of continuous improvement, JET 
reserves the right to change specifications at any time and without prior notice, without incurring obligations. 

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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