background image

 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 

4. PREPARATION 

 

WARNING! 

Ensure the air supply is clean and does not exceed 90psi while operating the 

wrench. Too high an air pressure and/or unclean air will shorten the product life due to 
excessive wear, and may be dangerous causing damage and/or personal injury. 

4.1. Air Supply 

4.1.1. Ensure the wrench trigger is not depressed when connecting to the air supply. 
4.1.2. You will require an air pressure of 90psi, and an air flow according to specification. 
4.1.3. D rain your compressor air tank of water daily. Water in the air line will damage the 

wrench. 

4.1.4. Clean the compressor air inlet filter weekly. Recommended hook-up procedure is shown 

in fig.1; see also note 4.2. 

4.1.5. Line pressure should be increased to compensate for unusually long air hoses (over 8 

metres). The minimum hose diameter should be1/4” I.D. and fittings must have the same 
inside dimensions. 

4.1.6. Keep hose away from heat, oil and sharp edges. Check hose for wear, and make certain 

that all connections are secure. 

4.2. Couplings 

Vibration may cause failure if a quick change coupling is connected directly to the wrench. 
To overcome this, connect a leader hose to the wrench. A quick change coupling may then 
be used to connect the leader hose to the air line recoil hose. See fig.2 & fig.3. 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for CT3991

Page 1: ...3 4 Square Drive CT3991 ORIGINAL INSTRUCTIONS Cannon Tools Limited Address 20 Station Road Rowley Regis West Midlands B65 0JU U K SAVE THESE INSTRUCTIONS AND PRECAUTIONS READ ALL PRECAUTONS AND INSTRU...

Page 2: ...d type as brought into circulation by us In case of alteration of the machine not agreed upon by us this declaration will lose its validity Product description 3 4 SQUARE DRIVE AIR IMPACT WRENCH Model...

Page 3: ...il and sharp edges Check air hose for wear before each use and ensure that all connections are secure Only use impact sockets which are specifically designed for use with an impact wrench Wear approve...

Page 4: ...ine will damage the wrench 4 1 4 Clean the compressor air inlet filter weekly Recommended hook up procedure is shown in fig 1 see also note 4 2 4 1 5 Line pressure should be increased to compensate fo...

Page 5: ...r in fig 1 5 6 Further depression of the secondary trigger in fig 1 provides the maximum torque available DO NOT use any additional force upon the wrench in order to remove a nut DO NOT allow the wren...

Page 6: ...of hose connectors To remedy check the air supply and follow instructions in section 4 b Grit or gum deposits in the wrench may also reduce performance This may be evident in the air strainer located...

Page 7: ...2 Front End Plate 1 44 Screw 1 13 Hammer Cage 1 45 Washer 1 14 Hammer Dog 2 46 Washer 1 15 Hammer Pin 2 47 Ball Bearing 1 16 Anvil 3 4 1 48 Ball Bearing 1 17 Socket Retainer 1 49 Retainer Ring 1 18 An...

Page 8: ...7 CANNON TOOLS LTD Add 20 station road Rowley Regis west midlands B65 0JU U K Made in China...

Reviews: