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IMPORTANT SAFETY INFORMATION

Clean air of correct air pressure is recommended for the power supply for this tool. A 

maximum of 90 PSI at the tool is recommended for most air tools of this class. Check 

specifications section for recommended pressure. (Depending on length of air hose and 

other circumstances, air pressure at compressor may need to be increased to 100 PSI to 

ensure 90 PSI at the tool.)

Water in the air hose and compressor tank contributes to reduced performance and 

damage of the air tool. Drain the air tank and filters before each use and as necessary to 

keep the air supply dry.

Hose length over 25’ causes loss in line pressure. Increase hose I.D. or increase 

compressor pressure to compensate for the pressure loss. Use an in-line pressure 

regulator with gauge if air inlet pressure is critical.

AIR SOURCE

13. Check for damaged parts. Before using any tool, any part that appears damaged 

should be carefully checked to determine that it will operate properly and perform its 

intended function. Check for alignment and binding of moving parts; any broken parts 

or mounting fixtures; and any other condition that may affect proper operation. Any 

part that is damaged should be properly repaired or replaced by a qualified technician.

14. Maintenance. For your safety, maintenance should be performed regularly by a 

qualified technician using original PERFORMANCE TOOLS® replacement parts. 

Failure to do so can lead to accidents for the operator. Use of any other parts will void 

the warranty. Only use accessories intended for use with this tool. Approved 

accessories are available from Performance Tool®. Use only accessories that are 

recommended by the manufacturer for your model. Accessories that may be suitable 

for one tool may become hazardous when used on another tool.

WARNING:

 Repetitive motions or exposure to vibration may be harmful to your hands and arms.

WARNING:

 This product and its packaging contain a chemical known to the State of California 

to cause cancer, birth defects, or other reproductive harm.

WARNING:

 The warnings, cautions, and instructions discussed in this instruction manual cannot 

cover all possible conditions and situations that may occur. It must be understood by the 

operator that common sense and caution are factors which cannot be built into this product, but 

must be supplied by the operator. Read and understand all of the instructions provided in the 

instruction manual of this product, as well as, any other tool (s) used with this product.

1. If an automatic oiler is not used, add a few drops of pneumatic tool oil to the airline 

connection before use. Add a few more drops after each hour of continual use.

2.  While the air hose is disconnected from the tool, unscrew the Blade Retainer (9) and 

install the desired blade. Screw the Blade Retainer (9) back on, holding the blade and 

tighten securely.

3. Attach the air hose to the air source. While holding the air knife firmly in one hand and 

the other safely out of the way of the blade, turn the air source on.

4. To begin use, push the safety catch on the Throttle Lever (23) forward by pushing the 

top of the device forward. A stable two-handed grip on this tool is best.

5. Depress the Throttle Lever (23) to activate the air knife blade.
6. If the tool requires more force to accomplish the task, verify that the tool receives 

sufficient, unobstructed airflow (CFM) and increase the pressure (PSI) output of the 

regulator up to the maximum air pressure rating for this tool. 

CAUTION!

 

To prevent tool and accessory failure, resulting in injury:

- Do not exceed the tools maximum air pressure rating of 90 PSI.
If the tool still does not have sufficient force at maximum pressure and sufficient airflow, 

then a larger tool may be required.
7. To prevent accidents, turn off the tool by releasing the Throttle Lever (23), detach the air 

supply, safely discharge any residual air pressure in the tool after use. Clean external 

surfaces of the tool with clean, dry cloth, and apply a thin coat of tool oil. Then store the 

tool indoors out of children's reach.

8. Do not remove the safety catch. It has been included for your safety. Without it, the tool 

could activate when the tool is bumped against something, set down on its lever, or 

when someone picks up the tool, accidently pressing on the Throttle Lever (23) 

activating the blade.

VIBRATION PRECAUTIONS

Air Hose

Blade Retainer

Throttle Lever

OPERATION

This tool vibrates during use. Repeated or long-term exposure to vibration may cause 

temporary or permanent physical injury, particularly to the hands, arms and shoulders. To 

reduce the risk of vibration-related injury:
1. Anyone using vibrating tools regularly or for an extended period should first be examined 

by a doctor and then have regular medical check-ups to ensure medical problems are 

not being caused or worsened from use. Pregnant women or people who have impaired 

blood circulation to the hand, past hand injuries, nervous system disorders, diabetes, or 

Raynaud's Disease should not use this tool. If you feel any medical or physical 

symptoms related to vibration (such as tingling, numbness, and white or blue fingers), 

seek medical advice as soon as possible.

2.  Do not smoke during use. Nicotine reduces the blood supply to the hands and fingers, 

increasing the risk of vibration-related injury.

CHANGING BLADES

1. Remove the Blade Retainer (9C) using the Hex Key Wrench (41). The blade can be 

mounted in 12 different positions at 30˚ increments.

2. Retighten the Blade Retainer (9C) and check all screws to ensure they are on tight and 

secure.

Blade

Summary of Contents for M664

Page 1: ...e product or defective part s being returned For part s after 90 days please remit your request postage prepaid to PERFORMANCE TOOL P O Box 88259 Tukwila WA 98138 These warranties exclude blades bits punches dies bulbs fuses hoses and other consumables which must be replaced under normal use and service These warranties shall not apply to any product or part which is used for a purpose for which i...

Page 2: ...area or work piece The tool can quickly penetrate material If working directly on the ground make sure you are not directly above shallow cables lines or pipes Keep your limbs and body clear of the tool If an accessory or attachment breaks off the tool tends to surge forward suddenly Operate tool a safe distance from yourself and others in the work area Make sure the immediate area is clear of oth...

Page 3: ...While the air hose is disconnected from the tool unscrew the Blade Retainer 9 and install the desired blade Screw the Blade Retainer 9 back on holding the blade and tighten securely 3 Attach the air hose to the air source While holding the air knife firmly in one hand and the other safely out of the way of the blade turn the air source on 4 To begin use push the safety catch on the Throttle Lever ...

Page 4: ...alve Plug 4 33 Valve Bushing 2 34 Exhaust Deflector 1 35 Stop Ring 1 36 Air Hose Assembly 1 4 in 1 37 Exhaust Hose Assembly 1 38 Packing 1 39 Screw M5 x 6 1 40 O Ring 1 41 Hex Key Wrench Description Qty Description Qty Description Qty Ram Assembly Parts List 15 16B 10 11 12 13 14 21 22 23 20 21 19 17 18 30 31 32 33 26 27A 27B 28 29 24 25 38 34 35 37 36 1 2 3 4 5 6 7 9A 41 39 9C 9B 8 27B 40 16A Dai...

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