MTD 315B - Manual (Page 8)

The best height for the nozzle will vary according to
the conditions. Adjust the height of the nozzle to find
the setting which gives the best performance for the
operating conditions. In general, raise the nozzle to
vacuum a thick layer of leaves; lower the nozzle for
smooth surfaces.
Shift Lever
6th Position
CARBURETOR ADJUSTMENT
A WARNiNG: if any adjustments are made
to the engine whiie the engine is running
(e.g., carburetor), keep ciear of aii mov­
ing parts. Be carefui of heated surfaces
and muffier.
Minor carburetor adjustment may be required to com­
pensate for differences in fuel, temperature, altitude
or load. Do not make unnecessary adjustments.
Factory settings are satisfactory for most applications
and conditions. If adjustment is needed, refer to the
separate engine manual packed with your chipper-
vacuum.
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.
CLUTCH CABLE ADJUSTMENT
To adjust the clutch cable, refer to the “Clutch Cable
Adjustment” section of Assembly Instructions.
SHIFT RDD ADJUSTMENT
If the shift rod needs adjustment to obtain forward or
reverse correctly, proceed as follows. See figure 12.
3.
4.
5.
Remove the bag from the unit.
Remove the hairpin clip and flat washer from the
upper end of the shift rod. Pull the ferrule out of
the hole in the shift lever. (Make certain wave
washer remains in place on the ferrule.)
Place the shift lever in 6th position (all the way to
the left).
Push down on the shift rod. Thread the ferrule up
or down the shift rod until the ferrule lines up with
the upper hole in the shift lever.
Secure ferrule to shift lever with flat washer and
hairpin clip.
FIGURE 12.
MAINTENANCE
A WARNING: Always stop engine and dis­
connect spark plug wire before cleaning,
lubricating or performing any repairs or
maintenance.
LUBRICATIDN
Wheels —Rear wheels are provided with light oil bear­
ings. Place a few drops of SAE 30 oil on each bearing
once a season.
Height Adjustment Mechanism —Lubricate the pivot
points on the height adjustment mechanism once a
season using a light oil.
CLEANING
Clean the chipper-vacuum thoroughly after each use.
Wash the bag periodically with water. Allow to dry
thoroughly in the shade. Do not use heat.
ENGINE
Refer to the separate engine manual for engine main­
tenance instructions.
Maintain engine oil as instructed in the separate
engine manual packed with your unit. Read and follow
instructions carefuliy.
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. To service the air cleaner, refer to the separate
engine manual packed with your unit.
The spark plug should be cleaned and the gap reset
once a season. Spark plug replacement is recom­
mended at the start of each season; check engine
manual for correct plug type and gap specifications.