Briggs & Stratton 500 Series Maintenance Manual page 25

Engine Model: Briggs & Stratton
C BUILD-UP OF GRASS CLIPPINGS UNDERNEATH or LACK OF
AIRFLOW
When cutting
grass make sure
you are using the
machine on full
throttle (if one is
fitted).
Raising the height
of cut increases
airflow and
assists grass
collection. This is
especially so if
the grass is damp.
Reducing the
height of cut in
stages to achieve
the desired level
is a sound
strategy.
Page 25 of 32 B&S Classic, 450 and 500 Series Selfhelp
Classic,
450 and 500 Series
1. Ensure there is no build up of grass underneath the
casing. Before checking the underside, make
sure to remove the HT Cap (sparkplug cap).
Only access the under side of the machine by
removing the grass catcher then lifting the machine
from the front until the handles touch the ground at
the rear).
2. Check the grass catcher allows air to pass through
it. If heavily soiled, wash it in warm soapy water to
clear old deposits of grass juices and debris. A
good airflow is essential for efficient grass
collection.
3. If grass is very long, remove the grass catcher, and
work with the deflector plate (stone guard) in
position. Clippings can be collected after a few
hours drying by simply going over the lawn again
with the grass catcher fitted, and the wheels set
slightly higher.
4. Should the machine become blocked with grass
when using it, stop the mower and remove the
H.T. lead (spark plug cap). Remove the grass box,
insert your hand through the rear aperture and
clean away any build up of grass clippings. DO
NOT TIP THE MOWER FORWARDS, OR
SIDEWAYS, OR UPSIDE DOWN.
5. Walk around to the front of the mower and raise the
front wheels in the air until the handles reach the
ground at the rear. Clean away any grass clippings
which have accumulated on the underside.
6. Once cleaned, lower the machine, re-fit the HT lead
(spark plug cap) and restart engine.
Guide 2011, Issue 1.0