RedMax HC510DV manual  26 , Engine Adjustment MA15, When adjusting, take the following steps

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9. Maintenance

MA15

26 

4.Tighten the centre bolt of the idler pulley to fix the belt adjustment plate.

5.Fit the belt cover as original.

■ENGINE ADJUSTMENT (MA15)

WARNING

It is dangerous if the cutter blade continues to turn even fingers are removed from the throttle lever. In case it is not solved by readjusting an idle adjust screw with following procedure, there are possibility of throttle lever failure or clutch failure. Ask sales dealer for check and repair.

The carburetor on your unit has been factory adjusted, but may require fine tuning due to change in operating conditions.

Before adjusting the carburetor, make sure that provided are clean air/fuel filters and fresh, properly mixed fuel.

When adjusting, take the following steps:

NOTE

Be sure to adjust the carburetor with the cutter blade attached.

1.H and L needles are restricted within the number of turn as shown below.

H needle: 0 ~ -1/4

L needle: 0 ~ -1/4

2.Start engine and allow it to warm up in low speed for a few minutes.

3.Turn idle adjusting screw (T) counter-clockwise so that saw chain does not turn. If idling speed is too slow, turn the screw clockwise.

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Contents HC510DV T2069-93110Page Safety First Contents 4  SpecificationsParts location  5  Symbols on the machine  6  7  Before Using the MachineFor safe operation Working Gear and Clothing  8  9  Operation Safety Precautions  10  11  Maintenance Safety PrecautionAfter Using the SAW Change of Dust Stopper Set upSE1  12 Fitting Dust Hose and Dust BAG SE2 SE3 SE4 Mounting of Cutter BladeCutter blade Flange bolt Flange washer a Dust hose Metal band Dust bag Tying Cord 14  HOW to MIX FuelFuel Recommended Mixing Ratio Gasoline 50OILFueling the Unit For Your Engine LIFE, AvoidClose OperationOP1 OP2 Starting Engine  16 Decomp valve Safety lock Start setting button Throttle leverOP3 OP4 OP5 Stopping Engine SwitchOP6 OFFFront guide Horizontal Cutting OP7 OP8 Cutting OperationFor AN Efficient Cutting Operation Vertical CuttingAir cleaner cover Top plate Felt filter MaintenanceAIR Cleaner MA1Spark Plug MA2MA3 NGK BPM8Y 22  MA4 MA5 Cooling AIR PassageBlade Drive Belt Belt Exchange Disassembling ProcedureMA6 MA7 MA8 MA9 Assembling Procedure  24 MA14 FAN Drive Belt Belt Tension Adjustment and ExchangeIdler pulley Belt adjustment plate Bolt Tighten Slacken  25 MA15 Engine Adjustment MA15When adjusting, take the following steps  26  27  Starter Rope Exchange  28 MA19 MA20 MA21 Notch 30  Storage  31  32  Troubleshooting guideCheck Probable Causes Action Parts list  33 Cutter Unit HC510DV S/N 200101 and up  34  35  Power Unit 1 HC510DV S/N 200101 and up  36  37  Power Unit 2 HC510DV S/N 200101 and up  38  39  Carburetor HC510DV S/N 200101 and up  40 Accessories & Tool SET HC510DV S/N 200101 and up  41 Manufacturer’s warranty coverage Limited Warranty RedMax Garantie limitée