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JCT-3620 series Chipping Hammers

 

Use safety shut-off valves so air flow can be 
stopped quickly in case of a line break. 

When using multiple hoses, air hoses should be 
larger than leader hose. Join multiple hoses 
directly, rather than with quick connect fittings 
which may cause pressure drops and tool power 
reduction. 

Use anti-whip devices across hose couplings to 
prevent hose from whipping in the event of a hose 
failure or coupling disconnect. 

Always use moisture traps at the compressor for 
the main distribution line. Use 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 containing rust inhibitors, 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 leave tool 
at a specialized facility. 

 

 

 

 

Figure 3 

Recommended arrangement of air piping and air line system 

Summary of Contents for JCT-3620

Page 1: ...Hammer 550620 JCT 3620 550621 JCT 3621 550622 JCT 3622 550623 JCT 3623 Operation Parts Manual M 550620 Edition 2 04 2017 JET 427 New Sanford Road LaVergne TN 37086 Ph 800 274 6848 www jettools com Cop...

Page 2: ...ducts Arsenic and chromium 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 ventila...

Page 3: ...p 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 an...

Page 4: ...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 com...

Page 5: ...ration value 15 m s2 15 m s2 26 m s2 26 m s2 Noise level 1 95 dB A 95 dB A 98 dB A 98 dB A Speed settings Variable throttle Variable throttle Variable throttle Variable throttle Overall length 14 in 3...

Page 6: ...to 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 lock...

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: ...JCT3620 11 Valve 1 12 JCT3620 12 Valve seat 1 13 JCT3620 13 Valve seat bumper 1 Index Part No Description Qty 14 JCT3620 14 Dowel pin 6x24mm 2 15 JCT3620 15 Piston 2 in 1 16A JCT3620 16 Round cylinder...

Page 12: ...g 56x3 mm 1 11 JCT3620 11 Valve 1 12 JCT3620 12 Valve seat 1 13 JCT3620 13 Valve seat bumper 1 Index Part No Description Qty 14 JCT3620 14 Dowel pin 6x24mm 2 15 JCT3621 15 Piston 2 in 1 16A JCT3621 16...

Page 13: ...JCT3620 11 Valve 1 12 JCT3620 12 Valve seat 1 13 JCT3620 13 Valve seat bumper 1 Index Part No Description Qty 14 JCT3620 14 Dowel pin 6x24mm 2 15 JCT3622 15 Piston 4 in 1 16A JCT3622 16 Round cylinder...

Page 14: ...g 56x3 mm 1 11 JCT3620 11 Valve 1 12 JCT3620 12 Valve seat 1 13 JCT3620 13 Valve seat bumper 1 Index Part No Description Qty 14 JCT3620 14 Dowel pin 6x24mm 2 15 JCT3623 15 Piston 4 in 1 16A JCT3623 16...

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 3620 series Chipping Hammers 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com...

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