MTD 242-662-000 - Manual (Page 6)

ADJUSTMENTS
A WARNING: Do not at any time m ike any
adjustment to the unit without fir st stop-
ping engine and disconnectin<| spark
plug wire.
HEIGHT ADJUSTMENT
An adjusting plate and thumb lever at both front
wheels provide height adjustment for the vacuum.
See figure 12. Each adjusting plate has nine posi­
tions. Height will be changed when the thumb lever Is
moved from one position to another. Simply depress
thumb lever towards wheel and move wheel aid lever
assembly to desired position. Both wheels must be
placed in the same relative position. Lower th€ front of
the unit to obtain more suction.
CARBURETOR ADJUSTMENT
A
WARNING: If any adjustments are made
to the engine while the engine is running
(e.g. carburetor), keep clear of all moving
parts. Be careful of heated surfaces and
muffler.
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.
MiMNTENANCE
A WARNING: Always stop engine arid dis­
connect spark plug wire before cl waning,
lubricating or performing any repairs or
maintenance.
LUBRICATION
Wheels —The wheels require no lubrication. How­
ever, if the wheels are removed for any reason, lubri­
cate the surface of the axle bolt and the inner surface
of the wheel with light oil. A 4 oz. plastic bottle of light
oil lubricant is available. Order part number 737-0170.
Engine oil may also be used.
ENGINE
Refer to the separate engine manual for engine
maintenance instructions.
Maintain engine oil as Instructed in the S(}parate
engine manual packed with your unit. Read and follow
instructions carefully.
Service air cleaner every 25 hours under normal con­
ditions. Clean every few hours under extremely dusty
conditions. Poor engine performance and flooding
usually indicates that the air cleaner should be ser­
viced. Tc service the air cleaner, refer tc the separate
engine manual packed with ycur unit.
The spark plug should be cleaned and the gap reset
once a seascn. Spark plug replacement is recom­
mended at the start of each season; check engine
manual for correct plug type and gap specifications.
Clean the engine regularly with a cloth or brush. Keep
the cooling system (blower housing area) clean to
permit proper air circulation which is essential to
engine performance and life. Be certain to remove all
dirt and combustible debris from muffler area.
OFF-SIEASON STORAGE
The following steps should be taken to preps re your
vacuum for storage.
1. Clean and lubricate the vacuum thcrcughly as
described in the lubrication instructions.
2. Refer to engine manual for correct engine storage
instructions.
3. If storing in an unventilated or metal storage
shed, coat metal parts with a light oil or silicone to
prevent rust.
4. Store in a dry, clean area. Do not store next to
corrosive materials, such as fertilizer.