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Hot Restart

To start the engine that is already warmed up (hot restart).

1. Pump the primer bulb until fuel can be seen flowing through the fuel return line to the fuel tank. Flowing 

fuel should be almost clear, not foamy or full of bubbles.

2. Turn the choke lever to the Open “ 

 

” position, and set the stop switch to the “RUN” position.

3. Leave the throttle trigger in the idle position and pull the starter grip.
4. If the engine fails to start after three to four pulls, follow the instructions in the Cold Starting Procedure 

section above.

If the engine fails to start after you follow the above procedures, contact an authorized BUSHRANGER 

dealer.

To Stop the Engine

1. Release the throttle trigger.
2. Set the stop switch to “STOP” position.

Idle Speed Adjustment

This Earth Auger is equipped with non-adjustable fuel mixture carburetor. 

The idle speed is the only adjustment for the operator.

The drill may be moving during idle speed adjustment. 

Wear the recommended personal protective equipment 

and observe all safety instructions. Keep hands and 

body away from the drill.
When the throttle trigger is released, the engine should 

return to an idle speed. The correct speed is 2400 - 2800 

min

-1

 (or just below the clutch engagement speed ). 

The drill must not move and the engine should not stall 

(stop running) at engine idle speed.

To adjust the engine idle speed, rotate the idle speed adjustment screw on the carburetor.

・  

Turn the idle speed screw in (clockwise) to increase the engine idle speed.

・  

Turn the screw out (counter-clockwise) to decrease the engine idle speed.

If idle speed adjustment is necessary, and after adjustment the drill rotates or the engine stalls, stop 

using the Earth Auger immediately!

Contact your local authorized BUSHRANGER Dealer for assistance and servicing.

 WARNING

POTENTIAL HAZARD

・ 

Engine must be running to make carburetor adjustments.

・ 

When engine is running, attached tool and other parts are moving.

WHAT CAN HAPPEN

・  

Contact with moving attached tool or other moving parts could cause serious personal injury 

or death.

HOW TO AVOID THE HAZARD

・ 

Keep hands, feet and clothing away from attached tool and other moving parts.

・ 

Keep all bystanders and pets away from unit while making carburetor adjustments.

Idle Speed Adjustment Screw

Summary of Contents for EA451

Page 1: ...Earth Auger Owner s Operator s Manual Completely read and understand this manual before using this product EA451 ...

Page 2: ...y Instructions 3 Operator Safety 3 Earth Auger safety 3 Fuel Safety 4 Earth Auger Operating Safety 4 Assembly 5 Installing Left Grip 5 Installing Drill 5 Adjusting Throttle Cable 5 Before Operation 6 Oil and Fuel 6 Mixing Petrol and Oil 7 Starting and Stopping 8 Idle Speed Adjustment 9 Page Operation 10 Drilling 10 Maintenance 10 Air Filter 10 Fuel Filter 11 Spark Plug 11 Cylinder cooling fins 12 ...

Page 3: ...f potential danger Replace any decal that is damaged or lost Symbol Explanation Indicates Danger Warning and Caution Read and understand this Owner s Operator s Manual Wear head protection where there is a risk of falling objects Wear eye protection while operating the Earth Auger Wear ear protection while operating the Earth Auger Guaranteed sound power level 111dB A ...

Page 4: ...Refer to Idle Speed Adjustment page 9 5 Inspect the drill and replace any parts that are cracked chipped or damaged before using the Earth Auger 6 Make sure the drill is installed and positioned correctly before using the Earth Auger 7 Never use a drill or replacement parts that are not approved by a BUSHRANGER service dealer 8 Maintain the Earth Auger according to the recommended maintenance inte...

Page 5: ...2 Never allow children to operate the Earth Auger It is not a toy Never allow adults to operate the unit without first reading this Operator s Manual 3 Avoid using the Earth Auger near rocks gravel stones and similar material that would cause harm ful missiles 4 Keep children bystanders and animals outside a 15m radius from the operator and Earth Auger 5 If you are approached while operating the E...

Page 6: ...the clip band and remove the lock pin from the drill 2 Put the drill onto the auger output shaft and insert the lock pin Cover it with the clip band Adjusting Throttle Cable The normal play is 1 to 2mm when measured at the carbu retor side end Readjust with the cable adjuster as required 1 PTO Shaft 2 Clip Band 3 Drill 4 Lock Pin Left Grip ...

Page 7: ...ions petrol is extremely flammable and highly explosive WHAT CAN HAPPEN A fire or explosion from petrol can burn you others and cause property damage HOW TO AVOID THE HAZARD Use a funnel and fill the fuel tank outdoors in an open area when the engine is cold Wipe up any petrol that spills Do not fill the fuel tank completely Add petrol to the fuel tank until the level is 10mm below the bottom of t...

Page 8: ...ailure to mix oil with the petrol at the appropriate ratio will cause major engine damage which will void your warranty Fuel Mixture Chart Mixing Instructions IMPORTANT Never mix petrol and oil directly in the Earth Auger fuel tank 1 Always mix fuel and oil in a clean container approved for petrol 2 Mark the container to identify it as fuel mix for the Earth Auger 3 Use regular unleaded petrol and...

Page 9: ...il fuel can be seen flowing through the fuel return line to the fuel tank Flowing fuel should be almost clear not foamy or full of bubbles 2 Turn the choke lever to the Close position 3 With the stop switch RUN a pull the starter grip 4 While holding the unit firmly pull out the starter grip quickly until engine started a Hold the right grip with your left hand b Support the left grip with your wa...

Page 10: ...tions Keep hands and body away from the drill When the throttle trigger is released the engine should return to an idle speed The correct speed is 2400 2800 min 1 or just below the clutch engagement speed The drill must not move and the engine should not stall stop running at engine idle speed To adjust the engine idle speed rotate the idle speed adjustment screw on the carburetor Turn the idle sp...

Page 11: ...engine and rotate the auger counter clockwise CAUTION Read the Safety instructions beginning on page 3 concerning proper use of the Earth Auger Always wear gloves and protective clothing when operating the Earth Auger Maintenance Air Filter Maintenance Interval The air filter should be cleaned daily or more often when working in extremely dusty conditions Replace after every 100 hours of operation...

Page 12: ...ure that the fuel filter is not stuck in a corner of the tank and that the fuel hose is not doubled over kinked before refueling Fuel Pick up Hose Fuel Tank Cap Wire Fuel Tank Fuel Filter Cap Holder Spark Plug Maintenance Interval The spark plug should be removed from the engine and checked after each 25 hours of operation Replace the spark plug after every 100 hours of operation Spark Plug Mainte...

Page 13: ...r cooling fins Maintenance Interval The cylinder cooling fins should be cleaned after every 25 hours of operation or once a week whichever comes first Air must flow freely around and through the cylinder cooling fins to prevent engine overheating Leaves grass dirt and debris buildup on the fins will increase the operating temperature of the engine which can reduce engine performance and shorten en...

Page 14: ... spark plug opening when you pull the starter grip WHAT CAN HAPPEN Oil can cause eye injuries HOW TO AVOID THE HAZARD Protect your eyes and keep your face away from the spark plug opening Storage For long term storage of the Earth Auger 1 Empty the fuel tank into a suitable fuel storage container 2 Run the engine to remove any fuel that may remain in the carburetor 3 Perform all regular maintenanc...

Page 15: ...lean or replace air filter If further assistance is required contact your local authorized BUSHRANGER service dealer Specifications Model EA451 Engine displacement cm3 41 5 Idling speed min 1 2400 2800 Spark plug NGK BPMR6Y Electrode gap mm 0 6 0 7 Type of carburetor Diaphragm Fuel tank capacity cm3 1000 Weight without fuel and drill kg 10 3 Adaptable drill size Diameter mm 40 to 200 Technical dat...

Page 16: ...P N 241518 00 GB 1807 IN 11 Sodium Street Narangba Qld 4504 ...

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