MK Diamond MK-APC-H - Manual (Page 5)

5
INSTRUCTION
CUTTING CONT'D
1. Support the work piece in such a way that you can predict what will happen and so it will not pinch.
2. Start cutting gently, do not force or squeeze the blade in.
3. Use a high speed blade.
4. Move the blade slowly backwards and forwards.
5. Use a small part of the the blade’s cutting edge.
6. Only use the blade’s cutting edge when cutting.
7. Cut with the blade fully vertical—at right angles to the work piece.
Under all circumstances avoid cutting using the side of the blade; it will almost certainly be damaged, break and can cause immense damage.
Only use the cutting section.
Do not lean the blade to the side, this can cause the blade to jam or break with personal injury as a consequence.
KICK BACK
Kickback can occur very suddenly and with great force. If the following directives are not followed, it can result in serious or even fatal injury.
If the sector of the blade illustrated below is used for cutting the blade can start to climbing and kickback the abrasive chop saw upwards and
backwards towards the user with immense force.
How to avoid kickback
1. Never cut with the segment illustrated in the diagram
2. Keep a good balance and a firm foothold.
3. Use both hands and take a firm grip with the thumb and fingers around the handle.
4. Keep the work piece at a comfortable distance
5. Use the abrasive chop saw at full throttle.
6. Take care when inserting the blade in an existing cut
7. Never cut above shoulder height
8. Be alert to movement of the work piece or anything else that can occur, which could cause the cut to close
and pinch the blade.
WATER COOLING
Water cooling, which is only used for power cutters and when cutting concrete, cools the cutting blade and increases its service life as well as reduce dust
formation (see Section “Abrasive Blades”). Among the disadvantages are difficulties at very low temperatures, the risk of damaging the floor and other
sections of the building and risk for slippage.
Sharpening Diamond Blades
Blades can become dull when the wrong feeding pressure is used or when cutting some materials such as heavily reinforced concrete. To force a dull blade
results in overheating and finally the loss of segments (part of the blade) Sharpen against a soft material such as sandstone or brick.
Blade Vibration
The blade can become out of shape (not round) and vibrate if a too high feeing pressure is used or if the blade is pressed into the work piece. A lower feeding
pressure ought to stop the vibration.
Otherwise replace the cutting blade
MAINTENANCE
Periodic maintenance
Follow requirement for checking the chain and bar a minimum of daily
• Clean cutting slurry away from the chain and chain guard then spray the bar and chain with a lubricant like WD40 before storing the equipment
• Put a shot of WD40 in the air hose at the same time
Lubrication
The Air motor requires a mist of oil for lubrication and to prevent sticking of the vanes during storage. Check the oiler in the hose is full at all times. Use air oil supplied
• Oiler settings For less humid environments the setting should be 3. For humid environments the settings should be 5 and a shot of WD40 should be put in
the hose before long term storage.
• If the motor refuses to start put oil down the hose and turn the motor over by rotating the blade by hand.
WARNING
WARNING
WARNING
WARNING