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JAT-412 Angled Die Grinder

 

 

Setup and Assembly 

Any missing parts or damage should be reported 
immediately to your JET

®

 distributor. Do not use a 

damaged  tool.  Read  this  instruction  manual 
thoroughly for operation, maintenance and safety 
instructions. 

Box contents: 

Die grinder 

Set of two 14mm wrenches (p/n JAT412-30) 

Operation manual  

Product registration card 

Operation 

 

The  die  grinder  must  be 

properly  lubricated  before  operation.  See 
“Lubrication” section.

  

 

Figure 1 

1. 

Loosen collet nut using the two wrenches on 
the flats of the collet nut and spindle (Figure 
1). Keep wrench on spindle stationary while 
turning wrench on collet nut. 

2. 

Fully  insert  1/4-inch  shank  of  grinding 
attachment  (not  included)  into  collet,  and 
retighten collet nut securely with wrenches. 

3. 

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) in to 
the air inlet. 

4. 

Blow  out  air  line  to  remove  any  dirt  or 
moisture,  then  connect  air  supply  hose  to 
tool. Set air pressure to 90psi. 

IMPORTANT:

  Connecting  a  quick-change 

coupling  directly  to  the  tool  is  not 
recommended,  as  vibration  may  cause  the 
connection to fail. Instead, add a leader hose 
and  install  any  quick-change  couplings 
farther down the line. 

5. 

Select speed with air regulator dial. 

6. 

Grip  tool  with  both  hands  and  push  safety 
lever forward to release throttle lever. Gently 
press throttle lever.  

7. 

Release throttle lever to stop die grinder. 

Maintenance 

Lubrication 

The  die  grinder  should  be  lubricated 

daily

  (or 

before  each  use)  with  air  tool  oil  through  the  air 
inlet. During continual operation, it should be re-
oiled every 1 to 2 hours. This can be done with an 
in-line  oiler,  or  manually.  If  done  manually, 
proceed as follows: 

1. 

Disconnect air hose from tool. 

2. 

Place 4 or 5 drops of air tool oil into air inlet. 

NOTE: Air tool oil not provided; it is available 
at most major hardware and tool stores. SAE 
#10 oil or sewing machine oil may be used 
as a substitute. Do not use detergent oil. 

3. 

Re-connect  air.  Run  die  grinder  at  low 
throttle  without  load  for  a  few  seconds  to 
distribute the oil throughout tool. 

4. 

When  finished  operating  die  grinder, 
disconnect air hose. Wipe off housing with a 
dry cloth. Place 4 or 5 drops of air tool oil into 
air inlet; re-connect air and run tool for a few 
seconds to distribute the oil. Disconnect air. 

The  die  grinder  has  been  pre-greased  from  the 
manufacturer, and it is unnecessary to grease the 
tool during its normal life.  

Periodically  apply  1  or  2  drops  of  air  tool  oil  to 
throttle  lever  and  safety  lever  pivots,  and  work 
lever to distribute the oil. 

Summary of Contents for JAT-412

Page 1: ...Pneumatic Angled Die Grinder 505412 JAT 412 Operation Manual M 505412 Edition 1 05 2019 JET 427 New Sanford Road LaVergne TN 37086 Ph 800 274 6848 www jettools com Copyright 2019 JET...

Page 2: ...curing 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...

Page 3: ...of tool attachment must equal or exceed rated free speed of die grinder 36 Make sure attachment is securely inserted into collet and collet nut is tight 37 Make sure workpiece is secure and will not s...

Page 4: ...ncompass 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 f...

Page 5: ...l Length 6 69 in 170 mm Housing material Composite Net weight 1 70 lb 0 77 kg Shipping weight 1 92 lb 0 87 kg 1 The specified values are emission levels and are not necessarily to be seen as safe oper...

Page 6: ...install any quick change couplings farther down the line 5 Select speed with air regulator dial 6 Grip tool with both hands and push safety lever forward to release throttle lever Gently press throttl...

Page 7: ...ench is too small or the air compressor CFM is not powerful enough for the job Continued use in either capacity will cause damage to the tool Tool Pressure JET Air Tools operate on 70 to 100 psi pound...

Page 8: ...8 JAT 412 Angled Die Grinder Figure 2 Recommended arrangement of air piping and air line system...

Page 9: ...according to instructions in this manual Bearings worn Disassemble and inspect bearing Grease or replace as needed Loss of power erratic action Low air pressure Verify compressor has proper CFM ratin...

Page 10: ...horized 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 Inf...

Page 11: ...JET 11...

Page 12: ...12 JAT 405 406 Angled Die Grinders 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com...

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