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20.  Do not use power tools in damp or wet 

location, or expose them to rain. Keep work 
area well lighted. 

21.  Do not leave a connected tool unattended. 

When not in use, disconnect tool from air 
source. 

22.  Shut off air supply and discharge any residual 

pressure from tool before removing hose, 
making adjustments, changing accessories, 
or storing tool. 

23.  Make sure tool is switched off, and your finger 

off the trigger, before connecting to air supply. 

24.  Remove adjusting keys and wrenches before 

turning on tool. 

25.  Keep visitors a safe distance from the work 

area. 

Keep children away.

 

26.  Give your work undivided attention. Looking 

around, carrying on a conversation and 
“horse-play” are careless acts that can result 
in serious injury. 

27.  Do not force a tool or attachment to do a job 

for which it was not designed. The right tool 
will do the job better and more safely. 

28. Repetitive motions and/or exposure to 

constant vibration can be harmful to hands 
and arms. Take frequent breaks and relax 
hands during extended operation. Change 
posture to avoid discomfort or fatigue. 

29.  Compressed air can be harmful if directed 

toward sensitive areas of the body, and may 
propel small particles caught in the air stream. 
Exercise 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 kerosene, diesel or jet fuel. 

34.  Do not dispose of this tool with normal 

household waste. Never dispose of the air tool 
into fire. 

Specific warnings for Chipping 
Hammers 

35. This chipping hammer is designed and 

intended for use by properly trained and 
experienced personnel only. If you are not 
familiar with the proper and safe operation of 
a chipping hammer, do not use until proper 
training and knowledge have been obtained. 

36.  Make sure chisel has appropriate shank with 

oval collar and dimensions for this chipping 
hammer. 

37.  Always secure tool in retainer, and place end 

of tool against workpiece before turning on 
hammer. 

38.  Disconnect machine from air supply before 

changing tooling. 

39.  Retainer must be properly installed with coil 

spring to prevent tool ejection during 
operation. 

40.  Always grip chipping hammer firmly with both 

hands. 

41.  The inserted tool can become hot during 

operation and cause burns if touched. Allow 
tool to cool before attempting removal or 
maintenance. 

Familiarize yourself with the following safety notices used in this manual: 

 

This means that if precautions are not heeded, it may result in serious, or even 

fatal, injury.

 

  

This means that if precautions are not heeded, it may result in minor injury and/or 

possible tool damage.

 

 

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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