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JCT-3640 series Chipping Hammers

 

 

 

 

Safety warnings 

General air tool warnings 

1. 

Read  and  understand  this  entire  manual 
before attempting assembly or operation. 

2. 

Read and understand all warnings posted on 
the tool and in this manual. Failure to comply 
with all of these warnings may cause serious 
injury. 

3. 

Replace  warning  labels  if  they  become 
obscured or removed. 

4. 

Do not use this tool for other than its intended 
use. If used for other purposes, JET disclaims 
any  real  or  implied  warranty  and  holds  itself 
harmless from any injury that may result from 
that use. 

5. 

Always  wear  ANSI  Z87.1  approved  safety 
glasses  or  face  shield  while  using  this  tool. 
(Everyday  eyeglasses  only  have  impact 
resistant lenses; they are

 not

 safety glasses.) 

6. 

Wear  ear  protectors  (plugs  or  muffs)  if  the 
noise exceeds safe levels. 

7. 

Wear  gloves  and  protective  clothing  if 
operation produces sparks or flying particles. 
Gloves  should  be  tight-fitting,  without  frayed 
fingers  or  hanging  threads.  Keep  hands  and 
body away from the working area of tool. 

8. 

Do  not  operate  an  air  tool  continually  at  full 
throttle without a work load on the tool. 

9. 

The air tool must be properly lubricated before 
operating.  

10.  Never start a percussion type air tool (chipper, 

breaker,  buster,  etc.)  without  securing  the 
tooling  in  the  retainer  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,  alcohol,  or  any 
medication. 

13.  Adopt  a  comfortable  posture  with  proper 

balance,  and  maintain  secure  footing  at  all 
times.  Non-slip  footwear  or  anti-skid  floor 
strips are recommended. 

14.  Do not wear loose clothing or jewelry. Confine 

long hair. 

15.  Excessive  air  pressure  and  too  much  free 

rotation may decrease life of the tool and may 
cause a hazardous situation. 

16.  Check  air  hoses  for  wear,  and  keep  them 

away  from  heat  and  sharp  edges.  Repair  or 
replace  damaged  air  hose  immediately.  Do 
not carry tool by the air hose. 

17.  Air  hose  may  cause  tripping  hazards;  keep 

hose away from traffic areas. 

18.  Do not  use this tool  near flammable  objects, 

or  in  potentially  explosive  environments.  Do 
not use near live electrical wires. 

19.  Do  not  use  power  tools  in  damp  or  wet 

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

20.  Do  not  leave  a  connected  tool  unattended. 

When  not  in  use,  disconnect  tool  from  air 
source. 

21.  Shut off air supply and discharge any residual 

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

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

off the trigger, before connecting to air supply. 

23.  Remove adjusting keys and wrenches before 

turning on tool. 

24.  Keep  visitors  a  safe  distance  from  the  work 

area. 

Keep children away.

 

Summary of Contents for JCT-3640

Page 1: ... JCT 3640 550641 JCT 3641 550642 JCT 3642 550643 JCT 3643 550644 JCT 3644 550645 JCT 3645 Operation Parts Manual M 550640 Edition 4 11 2018 JET 427 New Sanford Road LaVergne TN 37086 Ph 800 274 6848 www jettools com Copyright 2017 JET ...

Page 2: ...r 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 alcohol or any medication 13 Adopt a comfortable posture with proper balance and maintain secure footing at all times Non slip footwear or anti skid floor strips are recommended 14 Do not wear loose clot...

Page 3: ... has appropriate shank with oval collar and dimensions for this chipping hammer 36 Always secure tool in retainer and place end of tool against workpiece before turning on hammer 37 Disconnect machine from air supply before changing tooling 38 Retainer must be properly installed with coil spring to prevent tool ejection during operation 39 Always grip chipping hammer firmly with both hands Familia...

Page 4: ...s 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 common sense As with any tool operation safety of operator and bystanders should be first priority If there are questions or comments please contact your local supplier or JET JET can also be reached at...

Page 5: ...ion value 14 69 m s2 14 69 m s2 21 14 m s2 Noise level 1 97 1 dB A 97 1 dB A 97 6 dB A Overall length 13 1 4 in 336 6 mm 13 1 4 in 336 6 mm 15 1 4 in 387 4 mm Housing material steel steel steel Net weight 15 2 lb 7 kg 15 2 lb 7 kg 16 lb 7 3 kg Shipping weight 17 lb 7 7 kg 17 lb 7 7 kg 18 lb 8 kg 1 The specified values are emission levels and are not necessarily to be seen as safe operating levels ...

Page 6: ...FM 8 CFM 8 CFM Air Inlet 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 Required air pressure 90 psi 6 2 bar 90 psi 6 2 bar 90 psi 6 2 bar Force per blow 90psi 28 01 Joule 30 41 Joule 30 41 Joule Vibration value 21 14 m s2 23 51 m s2 23 51 m s2 Noise level 1 97 6 dB A 97 5 dB A 97 5 dB A Overall length 15 1 4 in 387 mm 16 5 8 in 422 3 mm 16 5 8 in 422 3 mm H...

Page 7: ...oove 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 spring must be properly installed before using chipping hammer 7 Remove protective cap from air inlet Figure 1 If an in line oiler is not being used add 4 or 5 drops of air tool oil not included into the air i...

Page 8: ...M for the tool 3 Set air pressure to 90 psi Excess air pressure and or unclean air will shorten the tool s life and may create a hazardous situation 4 Drain water from air compressor tank daily as well as any condensation from air lines Water in the air line may enter the tool and cause damage 5 Change filters on the air system on a regular basis 6 Air line pressure may be increased accordingly to...

Page 9: ...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 c...

Page 10: ... manual Loss of 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 etc Moisture or obstruction in air hose Air supply must be clean and dry Clean out air hose s and remove any kinks or bends Improper size of air transmission lines hoses fittings or coup...

Page 11: ...ough 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 parts such as fasteners can be found at local hardware stores or may be ordered from JET Some parts are shown for reference only and may not be available individually ...

Page 12: ...JCT3640 11 Trigger 1 12 JCT3640 12 Handle 1 JCT3640 12A Handle assembly 1 12 19 1 15 JCT3640 15 Upper valve seat 1 Index Part No Description Qty 16 JCT3640 16 Valve 1 17 JCT3640 17 Valve plate 1 18 JCT3640 18 Lower valve seat 1 19 5F E208 Roll pin 5x28mm 1 20 JCT3640 20 Dowel pin 7 8x22 5mm 2 22 JCT3640 22 Piston 1 2 in 1 23 JCT3640 23 Cylinder 2 in 1 27 JCT3640 27 Clutch ring 1 28 JCT3640 28 Exha...

Page 13: ...gger 1 12 JCT3640 12 Handle 1 JCT3640 12A Handle assembly 1 12 19 1 15 JCT3640 15 Upper valve seat 1 Index Part No Description Qty 16 JCT3640 16 Valve 1 17 JCT3640 17 Valve plate 1 18 JCT3640 18 Lower valve seat 1 19 5F E208 Roll pin 5x28mm 1 20 JCT3640 20 Dowel pin 7 8x22 5mm 2 22 JCT3640 22 Piston 1 2 in 1 23 JCT3640 23 Cylinder 2 in 1 27 JCT3640 27 Clutch ring 1 28 JCT3640 28 Exhaust shield 1 3...

Page 14: ... JCT3640 11 Trigger 1 12 JCT3640 12 Handle 1 JCT3640 12A Handle assembly 1 12 19 1 15 JCT3640 15 Upper valve seat 1 Index Part No Description Qty 16 JCT3640 16 Valve 1 17 JCT3640 17 Valve plate 1 18 JCT3640 18 Lower valve seat 1 19 5F E208 Roll pin 5x28mm 1 20 JCT3640 20 Dowel pin 7 8x22 5mm 2 22 JCT3642 22 Piston 3 in 1 23 JCT3642 23 Cylinder 3 in 1 27 JCT3640 27 Clutch ring 1 28 JCT3640 28 Exhau...

Page 15: ...igger 1 12 JCT3640 12 Handle 1 JCT3640 12A Handle assembly 1 12 19 1 15 JCT3640 15 Upper valve seat 1 Index Part No Description Qty 16 JCT3640 16 Valve 1 17 JCT3640 17 Valve plate 1 18 JCT3640 18 Lower valve seat 1 19 5F E208 Roll pin 5x28mm 1 20 JCT3640 20 Dowel pin 7 8x22 5mm 2 22 JCT3642 22 Piston 3 in 1 23 JCT3642 23 Cylinder 3 in 1 27 JCT3640 27 Clutch ring 1 28 JCT3640 28 Exhaust shield 1 31...

Page 16: ... JCT3640 11 Trigger 1 12 JCT3640 12 Handle 1 JCT3640 12A Handle assembly 1 12 19 1 15 JCT3640 15 Upper valve seat 1 Index Part No Description Qty 16 JCT3640 16 Valve 1 17 JCT3640 17 Valve plate 1 18 JCT3640 18 Lower valve seat 1 19 5F E208 Roll pin 5x28mm 1 20 JCT3640 20 Dowel pin 7 8x22 5mm 2 22 JCT3644 22 Piston 4 in 1 23 JCT3644 23 Cylinder 4 in 1 27 JCT3640 27 Clutch ring 1 28 JCT3640 28 Exhau...

Page 17: ...igger 1 12 JCT3640 12 Handle 1 JCT3640 12A Handle assembly 1 12 19 1 15 JCT3640 15 Upper valve seat 1 Index Part No Description Qty 16 JCT3640 16 Valve 1 17 JCT3640 17 Valve plate 1 18 JCT3640 18 Lower valve seat 1 19 5F E208 Roll pin 5x28mm 1 20 JCT3640 20 Dowel pin 7 8x22 5mm 2 22 JCT3644 22 Piston 4 in 1 23 JCT3644 23 Cylinder 4 in 1 27 JCT3640 27 Clutch ring 1 28 JCT3640 28 Exhaust shield 1 31...

Page 18: ...t with 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 Center Locator on the JET website More Information JET is constantly adding new products For complete up to date product information check with your local distributor or visit the JET website How...

Page 19: ...JET 19 This page intentionally left blank ...

Page 20: ...20 JCT 3640 series Chipping Hammers 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com ...

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