MTD Yard-Man 7090-1 - Manual (Page 3)

SUGGESTIONS FOR MORE EFFICIENT, and MAINTENANCE-
FREE OPERATION
GENERAL SNOW THROWING
1. Always keep area to be cleaned cleared before snowfall.
2. Always start engine with machine on level surface with master clutch disengaged. After starting, let engine warm up several
minutes at slow speed before starting to remove snow. If machine is stored indoors, let engine and machine adjust to outdoor
temperatures before starting to throw snow.
3. When throwing snow, run machine at full throttle for best results.
4. When in deep heavy snow, shift to slowest speed, and start at the edge of area to be cleared, discharging snow to the outside.
5. Always run engine a few minutes before storing, to dry moisture that collects inside of engine from blowing snow.
NOTE: NEVER RUN ENGINE INDOORS OR IN AN ENCLOSED AREA.
MAINTENANCE:
Your SNOW THROWER like all machines with moving parts, must receive care and maintenance. The following tips, if used, will
contribute many trouble-free hours to your machine.
Check oil level frequently, or every 5 hours of use. When changing oil, make sure dirt and debris is cleaned from oil drain area
before removing oil plug.
2. Keep fan and auger housings clean.
3. Check all nuts, bolts and screws occasionally for tightness to be sure machine is in good operating condition.
4. Should excessive vibration develop, check your fan and fan shaft immediately. Do not operate the machine with a bent fan or
shaft.
5. The machine is pre-lubricated at the factory. However, lubrication with each usage will prolong life of working parts.
6. If you are going to store your SNOW THROWER for any length of time (30 days or longer) it is important that the following
steps be taken.
8.
a.
b.
c.
Drain the gas tank and carburetor. Start the engine and run it until out of gas.
Gasoline left in the engine will leave gum deposits in the carburetor and gas tank.
Clean engine of all foreign matter.
Lubricate cylinder by removing the sparkplug and pouring one ounce of clean
lubricating oil through the sparkplug hole into the cylinder. Crank engine slowly to
spread oil and replace sparkplug.
7. Should unusual vibration develop in transmission, remove rubber panel in rear cover and check rubber drive disc condition. For
reference see page 11.
The belt tension is adjustable. The tensioning of belt should be checked every 5-10 hours of operation. Refer to adjustments
section for re-setting.
To prevent recoil freezing, when snow thrower is to be stored outside or in sub-freezing shelter, pull recoil rope out 6" to 12"
and tie knot in rope or fasten handle to keep rope from re-winding. This procedure will set inner parts in position for starting.
Just as your automobile needs professional mechanical maintenance from time to time, so does your air-cooled engine. A yearly
tune-up and check by a qualified service center is recommended to avoid breakdowns and unnecessary delays during the snow
throwing season.