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This unit is a gasoline engine driven snow blower. It is 
perfect for tackling heavy snowfall — easily able to cut 
through snow in excess of a foot or more. It is easy and 
safe to operate. With proper use and care, it should give 
you many years of dependable service.

Carefully read through this entire operator's manual 
before using your new unit. Pay attention to all 
cautions and warnings.

MODEL AND SERIAL NUMBERS

Record the model and serial number as well as date 
and place of purchase for future reference. Have this 
information available when ordering parts, optional 
accessories and when making technical or warranty 
inquiries.

ENGINE MANUAL

The 

Engine Manufacturer

 is responsible for all engine-

related issues with regards to performance, power rating, 
specifications, warranty and service. Please refer to 
the 

Engine Manufacturer’s

 owner/operator’s manual, 

packed separately with your unit, for more information.

EMISSION CONTROL SYSTEM

This equipment or its engine may include exhaust and 
evaporative emission control system components 
required to meet U.S. Environmental Protection Agency 
(EPA) and/or California Air Resources Board (CARB) 
regulations. Tampering with emission controls and 
components by unauthorized personnel may result 
in severe fines or penalties. Emission controls and 
components can only be adjusted by an authorized 
engine manufacturer's service center. 

DISCLAIMER

YARDMAX reserves the right to discontinue, change, 
and improve its products at any time without notice 
or obligation to the purchaser. The descriptions and 

specifications contained in this manual were in effect at 

printing. Equipment described within this manual may be 
optional. Some illustrations may not be applicable to your 
unit.

ENVIRONMENTAL

Recycle unwanted materials instead of disposing of 
them as waste. All tools, hoses, and packaging should 
be taken to the local recycling center and disposed of 
in an environmentally safe way.

CALIFORNIA PROPOSITION 65 WARNING

Engine exhaust, some of its constituents and certain 
product components contain or emit chemicals known to 
the state of California to cause cancer and birth defects 
or other reproductive harm.  For more information, go to 

www.P65Warnings.ca.gov.

6870100010718

YB6870

Engine Displacement

:

Clearing Width:
Intake Depth:
Auger Diameter:
Impeller Diameter:
Speed:
Weight:

Manufactured in China

208 cc
26”
21”
12”
12”
6F+2R
167.5 lbs

Two-Stage Snow Blower

11~20

1~10

2018

2019

2020

1

2

3

4

5

6

7

8

9 10 11 12

21~30

Manufacture Date:

Serial Number

Model Number

2

Two-Stage Snow blower   

»   

Operator’s Manual

 

     

YB6870PM00 - 1807

Introduction    

|

Summary of Contents for YB6870

Page 1: ...OR YOUR SAFETY READ AND UNDERSTAND THE ENTIRE MANUAL BEFORE OPERATING MACHINE MODEL NUMBER YB6870 SERIAL NUMBER PURCHASE DATE Both model number and serial number may be found on the main label You sho...

Page 2: ...DMAX we understand that land ownership definitely 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 t...

Page 3: ...and components by unauthorized personnel may result in severe fines or penalties Emission controls and components can only be adjusted by an authorized engine manufacturer s service center DISCLAIMER...

Page 4: ...Type Steel Intake Depth 21 Speed 13 x 4 Forward Speeds 6 Reverse Speeds 2 Control Dashboard Included Headlight Included Cup Holder Included Heated Hand Grips Included support Have questions about you...

Page 5: ...rator s position Only use clean out tool to clear blockage Never use your hands Do not remove or tamper with the protection and safety devices No smoking sparks or flames Do not touch parts that are h...

Page 6: ...hrown from the 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 opera...

Page 7: ...of the engine can cause fuel to expand Replace all fuel tank and container caps securely and wipe up spilled fuel Never operate the unit without the fuel cap securely in place Avoid creating a source...

Page 8: ...ll 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 Check clutch and brake...

Page 9: ...ift Cutters Optional 15 Hardware Kit Including CONTENTS SUPPLIED Your YARDMAX snow blower comes partially assembled and contains the following REPLACEMENT PARTS M10 40 2 1 M8 45 4 2 M8 20 2 3 M8 25 2...

Page 10: ...solid surface Lift the machine so that the scrapper blade is 1 8 3mm above the ground ensuring it is level A piece of cardboard half the thickness of the snow blower packaging placed under the scrappe...

Page 11: ...in the center position See Figure 4d 5 Remove the gear cover by removing the two ST4 8 13 self tapping screws See Figure 4c 1 2 M8 20 2 Jam Nut Cable Bracket 3 If the above adjustment does not create...

Page 12: ...igure 4f Illustration 1 11 Secure the chute rod to the gear assembly with a cotter pin and a washer see Figure 4f Illustration 1 12 Align the flattened back end of the long chute rod with the flattene...

Page 13: ...cure it to the handlebar to avoid it being snagged during use Cut excess strip off the zip ties when secure See Figure 6 3 M8 1 8 Figure 5c Figure 6 Trunnion 10mm 13mm 18mm 16mm 30mm 32mm 2 1 7 Figure...

Page 14: ...able ties Figure 7 2 13 YB6870PM00 1807 Assembly Under any circumstance do not exceed manufacturer s recommended pressure Excessive pressure when seating beads may cause tire rim assembly to burst wit...

Page 15: ...KNOW YOUR MACHINE Shear Pin Auger Gearcase Scraper Blade Auger Chute Crank Chute Deflector Belt Cover Discharge Chute Chute Clean Out Tool Drift Cutters Optional Skid Shoes Plastic Skid Shoes Optiona...

Page 16: ...moving lighter snow and transporting the snow blower It is recommended that you use a slower speed until you are familiar with the operation of the snow blower Always release the drive clutch lever be...

Page 17: ...stop the engine remove the key RUN STOP SWITCH Used to stop the engine Move switch to STOP position to stop engine Place switch in RUN position for engine to start and run It is recommended that you...

Page 18: ...lectrical cord before using the machine If the cord is damaged do not operate the machine Replace or repair the damaged cord immediately Connect extension cord to the electric starter plug in first an...

Page 19: ...nd surrounding property Always adjust skid shoes after adjusting scraper blade to prevent premature wear to scraper blade or damage to auger housing SKID SHOES Position the skid shoes based on surface...

Page 20: ...ll range of travel adjust the controlcableateitherendofit 1 Holdthetriggercapdownandpushjoystickalltheway forward Releasethetriggercap 2 Loosen adjusting nuts on cable support bracket either underneat...

Page 21: ...he auger housing and direct the snow into the auger Store the drift cutters on the auger housing when not in use Reposition drift cutters so they face forward as shown Wing nuts should be fastened on...

Page 22: ...household voltage different from the one shown on the electric starter 1 Insert safety ignition key into ignition slot until it clicks Do not turn the key 2 Be sure fuel shutoff valve is in the OPEN...

Page 23: ...temperature is below 15oF 25oC additionalprimingmaybeneeded Whentemperature is above 50oF 10oC priming is not necessary Over priming may cause flooding preventing the engine from starting If you do fl...

Page 24: ...ason or every 25 operating hours AUGER GEARBOX GENARAL LUBRICATION ENGINE LUBRICATION MAINTENANCE Refer to the Engine Operator s Manual When lubricating auger shaft remove shear pins to apply oil insi...

Page 25: ...pivot the snow blower up and forward so that it rests on the auger housing 5 Removetheframecoverfromtheundersideofthesnowblower by removing the screws which secure the cover See Figure 16c Figure 16a...

Page 26: ...NT If the drive belt becomes worn oil soaked or otherwise damaged proceed as follows to replace the belt 1 Topreventspillage removeallfuelfromtankbyrunningengine until it stops Remove the key to avoid...

Page 27: ...lutch control cable adjustment fails to correct the problem the friction wheel may need to be replaced 1 To prevent spillage drain all fluids remove all fuel by rinning engine until it stops Remove th...

Page 28: ...30 days or longer follow the storage instructions below 1 Run the engine until the fuel lines and carburetor are empty and it stops due to lack of fuel 2 Remove the safety ignition key and allow the...

Page 29: ...P switch to RUN Position 6 Connect or tighten spark plug wire 7 Fill tank with clean fresh gasoline and stabilizer 8 Clean adjust gap or replace 9 Insert safety ignition key 10 Add or drain oil to adj...

Page 30: ...snow 9 Trying to remove extremely heavy or wet snow 10 Auger is frozen in place 1 Unclog discharge chute 2 Remove debris or foreign object from augers or impeller 3 Adjust auger control cable 4 Repla...

Page 31: ...PARTS DIAGRAM MAIN MACHINE Parts List on page 34 Parts List on page 34 30 Two Stage Snow Blower Operator s Manual YB6870PM00 1807 Parts Diagram...

Page 32: ...HANDLEBARS 31 YB6870PM00 1807 Parts Diagram...

Page 33: ...GEARBOX 32 Two Stage Snow Blower Operator s Manual YB6870PM00 1807 Parts Diagram...

Page 34: ...Thrust Bearing 51104 1 52 Bolt M8 16 5 53 Shave Plate 1 54 Lock Nut M8 9 55 Bolt M8 20 7 56 Skid Shoe Metal 2 57 Hex Flange Nut M8 21 58 Bolt M8 25 2 59 Plug 9 60 Auger Housing Assy 1 61 Screw ST5 5 1...

Page 35: ...bsorber 1 166 Joystick Head 1 167 Screw ST4 2 19 5 168 Joystick Hat Right 1 169 Flat Washer 10 1 170 Joystick Torsional Spring Bracket 1 171 Torsional Spring 1 172 Drawbar Bracket 7 173 Joystick Left...

Page 36: ...844 YARDMAX 844 927 3629 info yardmax com yardmax com Tame the Great Outdoors...

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