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Lubricating the Hex Shaft

Service Interval:

Yearly—Lubricate the hex shaft.

Lightly lubricate the hex shaft yearly with automotive engine
oil (Figure 42).

g019018

Figure 42

1.

Hex shaft

3.

Rubber wheel

2.

Steel friction pulley

Important:

Do not get oil on the rubber wheel or the

steel friction pulley because the traction drive will slip
(Figure 42).

1.

Drain the gasoline from the fuel tank.

2.

Tip the machine forward onto its auger housing and
block it so that it cannot fall.

3.

Remove the lower cover by removing the 4 screws
securing it to the frame (Figure 43).

g019019

1

Figure 43

1.

Screws

4.

Move the speed selector lever to Position R2.

5.

Dip your finger in automotive engine oil and

lightly

lubricate hex shaft.

6.

Move the speed selector lever to Position 6.

7.

Lubricate the other end of the hex shaft.

8.

Move the speed selector lever forward and rearward
a few times.

9.

Install the lower cover and return the machine to the
operating position.

Replacing the Spark Plug

Service Interval:

Every 100 hours—Replace the spark plug.

Use a

Champion QC12YC

or equivalent spark plug.

Note:

To access the spark plug, you must first remove the

upper snow hood (Figure 44).

Figure 44

1.

Choke knob

3.

Ignition key

2.

Upper snow hood

4.

Screw (2)

1.

Remove the choke knob and the ignition key
(Figure 44).

2.

Remove the 2 screws that secure the upper snow hood
to the machine (Figure 44).

3.

Slowly

remove the upper snow hood, ensuring that

the primer bulb hose and the ignition wire remain
connected.

4.

Remove the bracket thumb screw and the bracket
(Figure 45).

24

Summary of Contents for 37770

Page 1: ...al identifies potential hazards and has safety messages identified by the safety alert symbol Figure 2 which signals a hazard that may cause serious injury or death if you do not follow the recommende...

Page 2: ...the Machine for Storage 26 Removing the Machine from Storage 26 Troubleshooting 27 Safety Before Operating Read and understand the contents of this manual before operating the snowthrower Become fami...

Page 3: ...eye shields during operation or while performing an adjustment or repair to protect eyes from foreign objects that may be thrown from the machine Operation Do not put hands or feet near or under rota...

Page 4: ...t for all moving parts to stop Disconnect the wire from the spark plug and keep it away from the spark plug to prevent someone from accidentally starting the engine Before leaving the operating positi...

Page 5: ...1 Traction drive squeeze the lever to engage release the lever to disengage 4 Cutting dismemberment hazard impeller keep away from moving parts remove the ignition key and read the instructions befor...

Page 6: ...halation hazard 2 Warning fire hazard 4 Warning hot surface burn hazard Briggs Stratton Part No 277566 1 When starting a cold engine close the choke and press the primer two times 2 When starting a wa...

Page 7: ...e upper handle 2 No parts required Install the traction control linkage Nut 2 3 Bolt 2 Install the chute Carriage bolts 2 4 Locknuts 2 Install the chute control rod 5 No parts required Fill the engine...

Page 8: ...the lower end of the speed control rod and insert the lower end of the rod into the lower link arm so that the bent end of the speed control rod faces rearward Figure 4 g019004 Figure 4 2 Secure the l...

Page 9: ...ol rod until it fits 7 Secure the trunnion and upper end of the speed control rod with the outer washer and a hairpin cotter you previously removed Note For easier installation look down through the o...

Page 10: ...the opening in the back of the chute gear cover until it slides into the chute gear Figure 10 g019005 Figure 9 1 Short rod 2 Long chute control rod g018899 Figure 10 3 Align the holes in the nested en...

Page 11: ...ty 37770 18 to 20 oz 0 53 to 0 59 l 1 Remove the dipstick and slowly pour oil into the oil fill tube to raise the oil level to the Full mark on the dipstick Do not overfill Figure 12 g018886 Figure 12...

Page 12: ...e B Disconnect the trunnion from the speed selector lever Figure 5 C Turn the trunnion downward clockwise on the speed control rod Figure 5 D Connect the trunnion to the speed selector lever Figure 5...

Page 13: ...r 2 Ignition switch 6 Oil drain plug 3 Fuel shutoff valve 7 Primer 4 Throttle Figure 16 1 Snow cleanout tool attached to the handle Operation Note Determine the left and right sides of the machine fro...

Page 14: ...an fresh unleaded gasoline with an octane rating of 87 or higher R M 2 rating method Oxygenated fuel with up to 10 ethanol or 15 MTBE by volume is acceptable Do Not use ethanol blends of gasoline such...

Page 15: ...1 1 Ignition key 4 Firmly push in the primer with your thumb 2 times 15 F or 9 C or above or 4 times below 15 F or 9 C holding the primer in for a second before releasing it each time Figure 22 g01889...

Page 16: ...move the choke toward the Run position Wait for the engine to run smoothly before each choke adjustment CAUTION If you leave the machine plugged into a power outlet someone can inadvertently start the...

Page 17: ...eller drive squeeze the right hand auger impeller lever to the handgrip Figure 30 Figure 30 2 To stop the auger and impeller release the right hand lever Important When you engage both the auger impel...

Page 18: ...es to raise the front of the machine a few inches centimeters off the pavement Then lift the handles quickly to bump the front of the machine on the pavement Repeat if necessary until a stream of snow...

Page 19: ...ute Stay behind the handles and away from the discharge opening while operating the machine Keep face hands feet and any other part of your body or clothing away from concealed moving or rotating part...

Page 20: ...rain the gasoline and run the engine to dry out the fuel tank and the carburetor at the end of the season Have an Authorized Service Dealer inspect and replace the traction drive belt and or the auger...

Page 21: ...the skids down until they are even with the ground 5 Firmly tighten the nuts that secure both skids to the auger sides Note To quickly adjust the skids if they loosen support the scraper 1 8 inch 3 m...

Page 22: ...arly Inspect the auger impeller cable and adjust or replace it if necessary 1 Loosen the jam nut 2 Engage the auger impeller lever and hold it in place Figure 37 Figure 37 3 Loosen or tighten the turn...

Page 23: ...rs Yearly whichever comes first Change the engine oil If possible run the engine just before changing the oil because warm oil flows better and carries more contaminants Use automotive detergent oil w...

Page 24: ...e engine oil and lightly lubricate hex shaft 6 Move the speed selector lever to Position 6 7 Lubricate the other end of the hex shaft 8 Move the speed selector lever forward and rearward a few times 9...

Page 25: ...h the 2 screws that you previously removed 12 Align the tab on the choke control knob with the slot on the upper snow hood 13 Connect the choke control knob to the choke shaft on the carburetor Adjust...

Page 26: ...tops When you can no longer start the engine it is sufficiently dry 6 Stop the engine and allow it to cool 7 Remove the ignition key 8 Clean the machine thoroughly 9 Touch up chipped surfaces with pai...

Page 27: ...t the wire to the spark plug 7 The spark plug is pitted fouled or the gap is incorrect 7 Check the spark plug and adjust the gap if necessary Replace the spark plug if it is pitted fouled or cracked 8...

Page 28: ...ust the auger impeller drive belt refer to www Toro com for servicing information or take the machine to an Authorized Service Dealer Engine runs but the machine discharges snow poorly or not at all 7...

Page 29: ...Notes 29...

Page 30: ...t and Identical in all material respects to the parts as described in the application for certification The warranty period begins on the date the small off road engine equipment is delivered to an ul...

Page 31: ...tion System Air cleaner Intake manifold Crankcase vent and line s Purge line and fittings 3 Ignition System Spark plug s and wire s Magneto ignition system 4 Catalytic Exhaust System Catalytic convert...

Page 32: ...s warranty except for special emission system coverage and engine warranty coverage on some products This express warranty does not cover the following Cost of regular maintenance service or replaceme...

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