Walker S18 User Manual

Maintenance Instructions CLEANING
59
Cylinder Head Cooling Fins
It is essential for performance and longevity of the
air-cooled engine to keep the cylinder head cooling
ns clean and free of obstruction. After every 8
hours of operation, check the performance of the
cooling system by starting the engine, holding a
hand adjacent to the cylinder head, and feeling the
cooling airow. If there is little or no airow, clean
the cooling ns as follows:
DANGER
Make sure to keep hands clear of exhaust
pipe, mu󰀪er, and moving parts when
checking airow.
Check for Airow
Check Cooling System Airow
1. Inspect accessible cooling ns and clean with
compressed air or backpack blower as needed.
If the buildup is excessive, refer to step 2.
2. If the dirt and debris cannot be removed with
compressed air, it will be necessary to remove
the engine from the chassis and remove the en-
gine shroud for thorough cleaning. See your
authorized Briggs & Stratton dealer for this ser-
vice.
CAUTION
DO NOT use a pressure washer to clean
the cooling system on an air-cooled en-
gine, mud may form under the cooling
shroud on the cylinder head and cooling
fan.
Cooling
Fins
Inspect and Clean Cylinder Head Cooling Fins
(Viewed from Right Rear Side of Engine)
IMPORTANT: Yearly, it is good maintenance prac-
tice to remove the engine cooling shroud and clean
the cylinder head cooling ns and cooling fan thor-
oughly to prevent overheating and extend engine
life. Make sure cooling shroud is reinstalled prop-
erly. This procedure will require removing the en-
gine from the chassis.
Clean these areas
of dirt and debris
Clean Cooling Fins and Fan
(Remove Engine Shroud)

Walker S18 Specifications

General

Drive System	Hydrostatic
Cutting Height	1.5 - 4.5 inches
Engine	Kohler
Cutting Width	48 inches
Transmission	Hydrostatic