Walker B23 User Manual

Maintenance Instructions B23
Cleaning
50
CLEANING
CAUTION
If a pressure washer is used on the ex-
posed working parts, avoid water on the
electrical parts and the engine cooling sys-
tem.
Engine Air 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 necessary 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.
Rotating Engine Cooling
Air Intake Screen
Keep Rotating Engine Cooling
Air Intake Screen Clean
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.
Check Airow
with Hand
Check Cooling System 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 oper ating the engine.
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 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.

Walker B23 Specifications

General

Brand	Walker
Model	B23
Category	Lawn Mower
Language	English