Briggs & Stratton 500 Series Maintenance Manual page 28

Engine Model: Briggs & Stratton
The air filter cover and filter element/sponge will
need also to be removed. This is located above the
fuel tank on the front right hand side (viewed from
the back), and secured with a single flat headed
screw from above. The engine cover does NOT
need to removed to do this.
Now follow the sequence of steps below:
1. Remove the grassbox
2. Check you have already removed the spark
plug cap (for safety reasons) and the air filter
(to avoid potential contamination)
3. Without tipping the mower forwards or
sideways, lift the mower up onto a workbench
on all 4 wheels, and position the back wheels
close to the edge of the workbench
4. Raise the stone guard flap, tip the mower
BACKWARDS with the handle hanging over
the edge of the bench – it will stand upright
like this
5. Mark the blade so that after removing it you
can replace it the correct way
6. Unscrew the blade (normal thread so turn the
spanner anti-clockwise to unfasten)
7. Remove the belt guard plate – this is the
protective plate through which the blade shaft
protrudes......it is between the blade and the
deck of the mower (it may be held on by a
single screw, 2 screws and a nut, or 4
screws)
8. If the belt is broken, a replacement must be
purchased from the service dealer. Position
the belt around the pulley on the blade shaft
9. On the back axle there is a black/grey box
(the transmission unit) and on the uppermost
face of this is a pulley – wind the belt onto this
Page 28 of 32 B&S Classic, 450 and 500 Series Selfhelp
Classic,
450 and 500 Series
Find your local
ServiceLink centre at
www.servicelink.org.uk
Guide 2011, Issue 1.0