MTD 243-685-000 - Manual (Page 7)

4.
5.
3. Grasp starter handle and pull rope out slowly until
engine reaches start of compression cycle (rope
will pull slightly harder at this point). Let the rope
rewind slowly.
Pull rope with a rapid, continuous, full arm stroke.
Keep a firm grip on starter handle. Let rope
rewind slowly. Do not let starter handle snap back
against starter.
Repeat instructions 3 and 4 until engine fires.
When engine starts, move choke control gradual­
ly to RUN position.
6. Self-Propelled Models Only—To engage the
drive mechanism, squeeze the clutch grip against
the upper handle. Release the clutch grip to stop
the forward motion.
TO STOP ENGINE
1. To stop engine, move throttle control lever to OFF
position.
2. Disconnect spark plug wire and ground to prevent
accidental starting while equipment is unattended.
IMPORTANT: The vacuum bag may have an air
escape located on the upper right hand side. See
figure 16. The air escape can be opened if the
vacuum is operated in wet, sandy or muddy
conditions.
The bag may be emptied using the large zipper as
shown in figure 16. Be certain the zipper is ciosed
when operating the unit.
FiGURE 16
ADJUSTMENTS
A WARNiNG: Do not at any time make any
adjustment to the unit without first stop­
ping engine and disconnecting spark
piug wire.
HEIGHT ADJUSTMENT
The height adjustment crank is located on the right
hand side of the vacuum. See figure 17. Turn the
crank clockwise to raise the nozzle. Turn the crank
counterclockwise to lower.
CARBURETOR ADJUSTMENT
A
WARNiNG: if any adjustments are made
to the engine whiie the engine is running
(e.g. carburetor), keep clear of all moving
parts. Be carefui of heated surfaces and
muffier.
FiGURE 17.
Minor carburetor adjustment may be required to com­
pensate for differences in fuel, temperature, altitude
or load.
NOTE: A dirty air cleaner will cause engine to run
rough. Be certain air cleaner is clean and attached to
the carburetor before adjusting carburetor.
Do not make unnecessary adjustments. Factory set­
tings are satisfactory for most applications and condi­
tions. If adjustment is needed, refer to the separate
engine manual packed with your vacuum.
CLUTCH ROD ADJUSTMENT
(Self-Propelled Models Only)
To adjust the clutch rod, refer to step numbers 3 and
4 under “Attaching the Clutch Rod” in Assembly
Instructions.
MAINTENANCE
A
WARNING: Always stop engine and dis­
connect spark plug wire before cleaning,
lubricating or performing any repairs or
maintenance.
LUBRICATION
Wheels—^Rear wheels are provided with light oil bear­
ings. Place a few drops of SAE 30 oil on each bearing
once a season.