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JCT-3620A 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 

locations  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-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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