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JET   

 

Air system requirements 

1.  Use proper air hose size (refer to tool 

specifications). The hose should be just long 
enough to serve the working area. Excessive 
hose length will cause pressure drop.  

1.  Make sure air compressor supplies clean, 

dry air at correct CFM for the tool. 

2. 

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. 

3. 

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. 

4. 

Change filters on the air system on a regular 
basis. 

5. Air-line pressure may be increased 

accordingly to compensate for extra-long air 
hoses (usually over 25 feet). Inside diameter 
of hose should be minimum 1/2-inch. 

General Air Tool 
Information 

If the air tool is not performing according to 
specifications, the following are among the most 
common causes. (See also “Troubleshooting” 
section.) 

 

Contaminated air such as a dirty air system 
or water in the system. 

 

Using wrong size tool for the job. 

 

Poor maintenance practices, such as using 
excessive air pressure or air volume. 

 

Improper or no lubrication. 

Rule of Thumb 

If it takes more than 8 seconds to tighten or loosen 
a bolt or nut with an air impact wrench at 
maximum setting, the 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 psi (pounds 
per square inch) air pressure measured at the tool 
when the tool is operating. Set tool to 90 psi 
unless indicated otherwise. Pressure in excess of 
100 psi will shorten the life of the tool. 

Air System Recommendations 

Equip the air compressor intake with a 
replaceable air filter that can be easily cleaned. 

Use safety shut-off valves so air flow can be 
stopped quickly in case of a line break. 

When using multiple hoses, air hoses should be 
larger than leader hose. Join multiple hoses 
directly, rather than with quick connect fittings 
which may cause pressure drops and tool power 
reduction. 

Use anti-whip devices across hose couplings to 
prevent hose from whipping in the event of a hose 
failure or coupling disconnect. 

Always use moisture traps at the compressor for 
the main distribution line. Use moisture traps and 
in-line oilers on each downline that is to be used 
for air tools. (See Figure 2). Place oiler as close to 
air 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 contains 
materials which can be recovered or recycled. 
When its useful life has expired, please leave tool 
at a specialized facility. 

 

Содержание 550680

Страница 1: ...6 inch Horizontal Grinder 550680 JCT 6680 Operation Parts Manual M 550680 Edition 1 07 2016 JET 427 New Sanford Road LaVergne TN 37086 Ph 800 274 6848 www jettools com Copyright 2016 JET ...

Страница 2: ...ucts 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 ventilated area and work with approved safety equipment such as face or dust masks that are specifically designed to filter out microscopic particles 9 Do not operate an air tool continually at full throttle ...

Страница 3: ...est 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 Grinders 35 Thi...

Страница 4: ...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 our web site www jettools com Record the seri...

Страница 5: ...le throttle Overall length 21 1 4 in 540 mm Housing material Aluminum Grip style Inline Net weight 9 1 lb 4 kg Shipping weight 10 lb 4 5 kg 1 The specified values are emission levels and are not necessarily to be seen as safe operating levels As workplace conditions vary this information is intended to allow the user to make a better estimation of the hazards and risks involved only Specifications...

Страница 6: ...and install any quick change couplings farther down the line 6 Hold grinder securely with both hands and press throttle lever The throttle lock may be engaged to continue operation without holding the lever 7 Position grinding wheel against workpiece with steady pressure 8 Press in throttle lever and disengage throttle lock to stop grinder User maintenance The grinder should be lubricated daily or...

Страница 7: ...inued use in either capacity will cause damage to the tool Tool Pressure JET Air Tools operate on 70 to 100 psi pounds per square inch air pressure measured at the tool when the tool is operating Set tool to 90 psi unless indicated otherwise Pressure in excess of 100 psi will shorten the life of the tool Air System Recommendations Equip the air compressor intake with a replaceable air filter that ...

Страница 8: ...8 JCT 6680 Horizontal Grinder Figure 2 Recommended arrangement of air piping and air line system ...

Страница 9: ...l vibration Bearings worn Disassemble and inspect bearing Grease or replace as needed 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 Set regulator dial on tool to maximum setting Check for loose connections Moisture or obstruction in air hose Air supply must be clean and dry Clean out air ...

Страница 10: ...8 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 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 ...

Страница 11: ...JET 11 550680 JCT 6680 6 inch Horizontal Grinder ...

Страница 12: ...Governor weight 2 39 JCT6680 39 Bearing cover 1 40 JCT6680 40 Ball bearing 6002MN 1 41 JCT6680 41 Cylinder upper plate 1 42 JCT6680 42 Rotor 1 43 JCT6680 43 Rotor vane 4 Index Part No Description Qty 44 JCT6680 44 Key 1 45 JAT104 17 Spring pin 3x8L 1 46 JCT6680 46 Cylinder 1 47 JCT6680 47 Cylinder lower plate 1 48 BB 6301 Ball bearing 6301 1 49 JCT6680 49 Coupling 1 50 JCT6680 50 Spacer 1 51 JCT66...

Страница 13: ...itional 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 State Law App...

Страница 14: ...14 JCT 6680 Horizontal Grinder This page intentionally left blank ...

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

Страница 16: ...16 JCT 6680 Horizontal Grinder 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com ...

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