Walker T23 Operator's Manual

T27i Maintenance Instructions
Cleaning
69
Engine Cooling System
Cooling Air Intake Screen
To prevent engine overheating and possible engine
damage, clean grass clippings, cha󰀨, and dirt from
the rotating engine cooling air intake screen after
every 8 hours of operation. In certain mowing
conditions (dry grass, leaves, tree “cotton”, etc.), it
may be nec essary to check and clean the screen
several times each day to prevent engine over-
heating. Also, visually check inside cylinder head
shroud and between cylinder head ns for material
packed in this area which would prevent cooling
airow; remove shroud and clean as required.
CAUTION
Operating the engine with a blocked air in-
take screen, dirty or plugged cooling ns,
and/or cooling shrouds removed will cause
engine damage from overheating.
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.
Every 100 hours, inspect and clean the cooling
ns (more often when operating in extremely dusty,
dirty conditions). Remove the two (2) cooling n
access panels in the engine shroud and clean the
cooling ns and external surfaces using com-
pressed air. Make sure to reinstall the access
panels before op erating the engine.
CAUTION
DO NOT use a pressure washer to clean the
cooling system on an air-cooled engine;
mud may form under the cooling shroud on
the cylinder head and cooling fan resulting
in engine overheating.
NOTE: If dirt is packed into the cooling ns it may
be necessary to remove the engine shroud in order
to thoroughly clean the cooling ns.
Kohler Engine
Shroud
Engine Cooling
Fin Access Panels
Engine Cooling
Air Intake Screen
Keep Rotating Cooling Air Intake
Screen and Cooling Fins Clean
IMPORTANT: Yearly, it is good maintenance prac-
tice to remove the engine cooling shroud and clean
the cylinder head cooling ns thoroughly to prevent
overheating and extend engine life. Make sure
cooling shroud is reinstalled properly. This proce-
dure will require removing the engine from the
chassis.
Cylinder Head
(Not Visible)
Check Airow
with Hand
Check Cooling System Airow

Walker T23 Specifications

General

Brand	Walker
Model	T23
Category	Lawn Mower
Language	English