67
Maintenance Instructions
REPLACING/REPAIRING
Fuel Filter
Model MC is equipped with an in-line fuel filter. Visu-
ally inspect the filter periodically, and replace the
filter
yearly.
In-Line
Fuel Filter
Fuel Filter Location
IMPORTANT:
Replace the fuel filter only in a clean
area where the fuel line and connections will not be
contaminated by any dust and dirt.
DANGER
Gasoline is extremely flammable and can
be highly explosive. To minimize danger:
•
Use only an approved fuel container for
gasoline.
•
DO NOT allow open flames or sparks
near the machine while performing main-
tenance or refueling; DO NOT smoke
while working with fuel.
•
Wipe up spilled gasoline immediately
and completely.
1. Expand and slide clamps on either side of the
filter away from filter and pull fuel lines off filter.
2. Replace filter.
Blade Overload Shear Bolts
NOTE:
Shear bolts are not used on the DSD52
mower deck.
The cutting blade is keyed to the blade hub by
two
(2) shear bolts
(10-24 x 5/8 in. stainless steel ma-
chine screws). These bolts are designed to shear
and protect the blade drive gearbox from damage if
the blade encounters a shock load.
Cutting Blade
Shear Bolts
Cutting Blade Shear Bolts
NOTE:
Tightening the
5/8-18 blade mounting nut
to 60 ft-lb (81.3 N·m)
is also important for proper
shock load protection. It is important to not
over-
tighten
the mounting nut since this defeats (over-
rides) the function of the shear bolts.
If these bolts shear, remove the blade and install
new bolts. Refer to
CHECKING/SERVICING
in
this section for
Sharpen Mower Blades
which de-
scribes the blade removal and installation proce-
dure.
After reinstalling the blade, check blade timing by
moving blades through
one (1) complete revolu-
tion.
Make sure blade tips pass clear of each other.
If timing is incorrect, contact your Walker dealer.
