Jet JAT-452 Operations & Parts Manual Download Page 7

JET   

 

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: 

1 Angle 

grinder 

1 Dead 

handle 

Hex key, 3/8in. 

Operation and parts manual  

1 Warranty 

card 

 

Operation 

 

The angle grinder must be 

properly lubricated before operation. See 
“Lubrication” section. 

 

Figure 1 

1.  Install dead handle into threaded hole on 

either side of grinder. 

2. 

Press spindle lock and rotate disc pad until 
engaged. 

3.  Unscrew disc nut from spindle and install 

grinding wheel. Reinstall disc nut securely. 

4. 

Remove protective cap from air inlet (Figure 
2). If an in-line oiler is not being used, add 4 
or 5 drops of air tool oil (not included) into the 
air inlet. 

5.  Blow out air line to remove any dirt or 

moisture, then connect air supply hose to 
tool. Set air pressure to 90 psi. 

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. 

6.  Hold grinder with a light but secure grip. 

Push throttle lock knob to release throttle 
lever.  

7.  Gently press throttle lever. Rotation is 

clockwise as viewed from above tool. 
Pressure against throttle lever determines 
rotation speed. 

8. 

Place grinding wheel against workpiece with 
a steady pressure. Do not use excessive 
pressure – allow the tool to do the work. 

9. 

Release throttle lever to stop grinder. 

To reposition disc guard, loosen the two socket 
head cap screws with provided wrench and rotate 
guard to desired position. Re-tighten screws. 

Maintenance 

Lubrication 

The 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 grinder at low throttle 
without load for a few seconds to distribute 
the oil throughout tool. 

4. 

When finished operating 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. 

Summary of Contents for JAT-452

Page 1: ...Pneumatic 7in Angle Grinder 505452 JAT 452 Operation Parts Manual M 505452 Edition 2 06 2015 JET 427 New Sanford Road LaVergne TN 37086 Ph 800 274 6848 www jettools com Copyright 2015 JET...

Page 2: ...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 Ce...

Page 3: ...romium 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 ventilated area and work wi...

Page 4: ...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 lubricat...

Page 5: ...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...

Page 6: ...Overall length 13 3 4 in 349 25 mm Housing material Aluminum with TPE molded grip Net weight 8 00 lb 3 63 kg Shipping weight 9 44 lb 4 28 kg 1 The specified values are emission levels and are not nec...

Page 7: ...e grip Push throttle lock knob to release throttle lever 7 Gently press throttle lever Rotation is clockwise as viewed from above tool Pressure against throttle lever determines rotation speed 8 Place...

Page 8: ...e air wrench 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 p...

Page 9: ...JET 9 Figure 2 Recommended arrangement of air piping and air line system...

Page 10: ...cate properly 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 pro...

Page 11: ...llowing pages To order parts or reach our service department call 1 800 274 6848 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 wh...

Page 12: ...r 505452 JAT 452 7in Angle Grinder exploded view 53 18 36 36 19 35 37 38 24 16 15 14 35 23 6 5 32 28 31 9 30 30 26 26 52 3 7 2 33 4 34 8 40 39 17 43 12 47 25 46 45 44 11 50 27 41 10 42 48 48 21 56 49...

Page 13: ...ew M5x20L 4 27 JAT452 27 Spindle lock pin 1 Index Part No Description Qty 28 JAT452 28 Spring 1 29 JAT452 29 Screw M4x0 7P 1 30 TS 2361051 Spring washer M5 4 31 70109NPN O Ring 9 8x1 9 1 32 JAT452 32...

Page 14: ...14 JAT 452 Angle Grinder This page intentionally left blank...

Page 15: ...JET 15 This page intentionally left blank...

Page 16: ...16 JAT 452 Angle Grinder 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com...

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