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Do not operate without wearing adequate winter outer garments.

Do not use the machine on a roof. 

Do not run the engine indoors, except when starting the engine 

and for transporting the snow thrower in or out of the building. 

Open the outside doors; exhaust fumes are dangerous.

Always check overhead and side clearances carefully before 
operation. Always be aware of traffic when operating along 
streets or curbs.

Thoroughly inspect the area to be worked. Keep the working area 
clean and free of toys, doormats, newspapers, sleds, boards, wires 
and other foreign objects, which could be tripped over or thrown by 

the auger/impeller. Check for weak spots on docks, ramps or floors.

Plan your snow-throwing pattern to avoid discharge toward 
people or areas where property damage can occur.

Do not operate near drop-offs, ditches, or embankments. 
Machine can suddenly turn over if a wheel is over the edge of a 
cliff or ditch, or if an edge caves in.

Keep all bystanders, children, and pets at least 75 feet (23m) 
away. If you are approached, stop the unit immediately.

Use a grounded three-wire extension cord and receptacle for all 

machines with electric start engines.

Check clutch and brake operation frequently. Adjust and service 
as required. All motion of drive wheels and auger/impeller must 
stop quickly when control levers are released. 

let engine and machine adjust to outdoor temperature before 
starting to clear snow.

SPECIFIC SAFETY RULES

Stay alert for hidden hazards or traffic.

Do not overload machine capacity by attempting to clear snow at 
too fast of a rate.

Do not throw snow any higher than necessary.

Adjust auger housing height to clear gravel or crushed rock 

surfaces. Exercise extreme caution when operating.

Exercise caution to avoid slipping or falling, especially when 

operating in reverse. never operate machine at high transport 
speeds on slippery surfaces. Always look down and behind before 
and while backing.

Do not operate on steep slopes. Do not clear snow across the 
face of slopes. Keep all movement on slopes slow and gradual. Do 
not make sudden changes in speed or direction. Use a slow speed 
to avoid stops or shifts on slopes. Avoid starting or stopping 
on a slope. Do not park machine on a slope unless absolutely 
necessary. When parking on a slope, always block the wheels.

Disengage power to the auger/impeller when transporting or not 
in use.

Disengage all control levers and stop engine before you leave the 
operating position (behind the handles). Wait until the auger/ 
impeller comes to a complete stop before unclogging the chute 
assembly, making any adjustments, or inspections.

Hand contact with the rotating impeller inside the discharge 
chute is the most common cause of injury associated with snow 
throwers. Do not unclog chute assembly while engine is running. 
Shut off engine and remain behind handles until all moving parts 
have stopped before unclogging. never put your hand in the 
discharge or collector openings. Always use the clean-out tool 
provided to unclog the discharge opening.

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   Safety

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Summary of Contents for YB4628

Page 1: ...anual FOR YOUR SAFETY READ AND UNDERSTAND THE ENTIRE MANUAL BEFORE OPERATING MACHINE MODEL NUMBER YB4628 SERIAL NUMBER PURCHASE DATE Both model number and serial number may be found on the main label...

Page 2: ...nitely has its privileges but it also comes with a great deal of responsibility When duty calls and you need to respond will you have what it takes to tame the great outdoors When looking for outdoor...

Page 3: ...contain or emit chemicals known to the state of California to cause cancer and birth defects or other reproductive harm MODEL AND SERIAL NUMBERS Record the model and serial number as well as date and...

Page 4: ...l us at support yardmax com or contact us via your favorite social media site Model Number YB4628 Clearing Width 18 Engine YARDMAX Displacement 87 cc Start Type Recoil Auger Diameter 8 Clearing Depth...

Page 5: ...Only use clean out tool to clear blockage Never use your hands Do not use the chute handle to lift the unit Do not remove or tamper with the protection and safety devices No smoking sparks or flames...

Page 6: ...he unit Always wear safety goggles or safety glasses with side shields when operating Wear appropriate hearing protection Always keep hands and feet away from all moving parts during operation Moving...

Page 7: ...exposed live electrical parts and connections to avoid sparking or arcing These events could ignite fumes or vapors Always stop the engine and allow it to cool before filling the fuel tank Never remo...

Page 8: ...ay alert for hidden hazards or traffic Do not overload machine capacity by attempting to clear snow at too fast of a rate Do not throw snow any higher than necessary Adjust auger housing height to cle...

Page 9: ...4 Directional Chute Control Handle 5 Wheels 6 Operator s Manual Engine Manual 7 Tools for Spark Plug Assembly 8 Hardware Kit Including ST6 3 X 25 X 4 1 X 2 2 M8 X 45 X 4 3 TOUCH UP PAINT Orange X 1 4...

Page 10: ...to the wheel hole 4 Follow the steps 1 3 to assemble the other wheel X 2 2 ST6 3 X 25 X 4 1 1 Align the screw holes and the pin holes with the plastic studs in the chute base with the holes in the low...

Page 11: ...s and nuts Be sure not to pinch or kink the auger clutch cable in the process 1 Align the holes in the handlebars and the holes in the lower handle Note Figure 3a below that the handle must face upwar...

Page 12: ...tch Cable Adjuster Link Recoil Start Handle Chute Deflector Auger Scraper Blade Belt Cover Fuel Filler Cap Throttle Control Lever Primer Safety Ignition Switch Chute Handle Discharge Chute EngineOilFi...

Page 13: ...he auger This will cause excessive heat build up in the auger which could cause damage to the auger and scraper blade When engaged the auger rotates and draws snow into the auger housing and throws it...

Page 14: ...it rest on the handle 3 Loosen the four flange lock nuts and carriage screws which secure the scraper blade to housing Move the scraper blade to the desired position and retighten the nuts and screws...

Page 15: ...side The cable adjuster link found under the spring cover provides further adjustment options if required 1 Slide up the spring cover and unhook the spring from the adjuster link You can pull up the a...

Page 16: ...TRANSPORTATION Slightly overlap each successive path to ensure all snow will be removed For large areas start in the middle and throw snow to each side so snow is not cleared more than once For extrem...

Page 17: ...y and allow the engine to cool 3 Lubricate the machine as instructed 4 Clean the exterior of the engine and the snow thrower thoroughly 5 Touch up all rusted or chipped paint surfaces sand affected ar...

Page 18: ...ew belt around the drive pulley and under the idler pulley 7 Route the end of the new belt around the auger pulley and slide the pulley back on to the auger shaft It may be necessary to push down on t...

Page 19: ...d 6 Spark plug wire loose 7 Faulty spark plug 8 The engine oil level in the engine crankcase is too low or too high 1 Move choke lever to RUN position 2 Fill tank with clean fresh gasoline 3 Replace w...

Page 20: ...Auger belt loose or damaged 5 Augerrubberpaddleswornordamaged 6 Throwing too much snow 7 Trying to remove extremely heavy or wet snow 8 Auger is frozen in place 1 Unclog discharge chute 2 Remove debri...

Page 21: ...PARTS DIAGRAM 20 Single Stage Snow Blower Operator s Manual Parts Diagram 30230US25M100 indd 20 2016 9 3 11 04 20...

Page 22: ...oller 1 37 Roller Shaft 1 38 Spring Washer 8 4 No Description QTY 39 Roller Bushing 1 40 Key A5x18 1 41 Support Base Plate 1 42 Chute Adapter 1 43 Auger Reinforcing Plate 1 44 Support Plate Right 1 45...

Page 23: ...Chute 1 78 Bolt M8x45 4 79 Thick Lock Nut M6 2 No Description QTY 80 Arc Washer 6 1 81 Recoil Start Handle Bracket 1 82 Lower Handle 1 22 Single Stage Snow Blower Operator s Manual Parts List 30230US2...

Page 24: ...Tame the Great Outdoors TM 1850 W Winchester Rd Suite 106 Libertyville IL 60048 844 YARDMAX 844 927 3629 info yardmax com yardmax com 30230US25M100 indd 23 2016 9 3 11 04 20...

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