RedMax HC510DV manual For safe operation, Before Using the Machine,  7 

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5. For safe operation

BEFORE USING THE MACHINE

a. Cut-off saws are high-speed cutting tools and very dangerous to operate; therefore it is very important that you read and fully understand the contents of the owner’s manual before using.

b. This unit has been designed for use in cutting concrete products, stone and cast-iron pipe at outside construction site. Never use this product for any other purpose since doing so could result in unforeseen accidents and injuries occurring.

c. You must be certain that your physical and mental condition is satisfactory to operate this unit. Never attempt to operate it under the influence of drugs or alcohol, or when fatigued.

d. Never allow children or anyone unable to fully understand the directions given in this manual to use this machine.

e. Avoid running the engine indoors. The exhaust gases contain harmful carbon monoxide.

f.Never use this unit under circumstances like those described below:

1.When the ground is slippery or when other conditions exist which might make it not possible to maintain a steady posture.

2.At night, at times of heavy fog, or at any other times when you’re your field of vision might be limited and it would be difficult to gain a clear view of the area.

3.During rain storms, during lightning storms, at times of strong or gale-force winds, or at any other times when weather conditions might be unsafe.

4.When you cannot fix cutting material.

5.Near the combustible materials such as: petrol (gas), wood, dry grass etc.

g.When planning your work schedule, allow plenty of time to perform the work of cutting and allow plenty of time for rest.

Limit the amount of time over which this unit is to be used continuously to somewhere around 10 minutes per session, and take 10~20 minutes of rest between work sessions. Also try to keep the total amount of work performed in a single day under 2 hours or less.

Operating this unit over a long period of time

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Contents T2069-93110 HC510DVPage Contents Safety FirstParts location Specifications 4   5   6  Symbols on the machineFor safe operation Before Using the Machine 7   8  Working Gear and Clothing 9   10  Operation Safety PrecautionsAfter Using the SAW Maintenance Safety Precaution 11   12  Set upSE1 Change of Dust StopperDust hose Metal band Dust bag Tying Cord SE2 SE3 SE4 Mounting of Cutter BladeCutter blade Flange bolt Flange washer a Fitting Dust Hose and Dust BAGRecommended Mixing Ratio Gasoline 50OIL HOW to MIX FuelFuel  14 For Your Engine LIFE, Avoid Fueling the Unit 16  OperationOP1 OP2 Starting Engine CloseOP3 OP4 OP5 Safety lock Start setting button Throttle leverDecomp valve OFF SwitchOP6 Stopping EngineVertical Cutting OP7 OP8 Cutting OperationFor AN Efficient Cutting Operation Front guide Horizontal CuttingMA1 MaintenanceAIR Cleaner Air cleaner cover Top plate Felt filterNGK BPM8Y MA2MA3 Spark PlugBlade Drive Belt MA4 MA5 Cooling AIR Passage 22  MA6 MA7 MA8 MA9 Disassembling ProcedureBelt Exchange  24  Assembling Procedure 25  FAN Drive Belt Belt Tension Adjustment and ExchangeIdler pulley Belt adjustment plate Bolt Tighten Slacken MA14 26  Engine Adjustment MA15When adjusting, take the following steps MA15 27   28  Starter Rope ExchangeNotch MA19 MA20 MA21 30   31  StorageCheck Probable Causes Action Troubleshooting guide 32   33  Parts list 34  Cutter Unit HC510DV S/N 200101 and up 35   36  Power Unit 1 HC510DV S/N 200101 and up 37   38  Power Unit 2 HC510DV S/N 200101 and up 39   40  Carburetor HC510DV S/N 200101 and up 41  Accessories & Tool SET HC510DV S/N 200101 and upManufacturer’s warranty coverage Limited Warranty RedMax Garantie limitée