Walker B23 User Manual

Maintenance Instructions B23
Kohler Tips
42
IMPORTANT TIPS FOR CARE OF THE
KOHLER ENGINE
Fuel System
● Fuel must be clean—free from water, dirt, and
or ganic material.
● Change the fuel lter on a regular basis and
when contamination is suspected or found in
the fuel.
Starting/Stopping
● Start engine with the throttle advanced o󰀨 idle
(1/4 to 1/2 throttle). This will aid starting, espe-
cially in cold weather.
● Keep the battery fully charged.
● Match crankcase oil viscosity to the ambient
tem perature, allowing the engine to crank
faster and start easier.
● Allow engine to run at idle for a few seconds
be fore stopping engine to avoid run-on or
backring.
Cooling System
CAUTION
DO NOT use water or 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.
● Keep engine air intake screen and cylinder
head ns free of grass clippings, cha󰀨, and
dirt. Inspect intake screen and cooling ns for
cleanliness and no damage.
● Periodically remove two access panels in the
en gine shroud to inspect and clean cylinder
head cool ing ns.
● Check performance of the cooling system by
starting the engine, holding a hand adjacent to
the cylinder head, and feeling the cooling
airow.
DANGER
Make sure to keep hands clear of exhaust
pipe, mu󰀪er, and moving parts when
checking airow.
● Operate the engine at full speed when mowing.
This allows the engine to produce full horse-
power and move more cooling air through the
engine cool ing ns.
Air Cleaner System
● Use only Donaldson
®
air cleaner elements.
Aftermarket elements may not seal in the air
cleaner housing, allowing dirt to enter the
engine. Also, aftermarket lters often skimp on
the ltration media and require more frequent
replacement (see following instructions).
● Use the air lter restriction gauge to indicate
the need to service the air lter.
● DO NOT overservice or frequently “disturb”
the air lter. A dirty air lter actually cleans
better than a new one. Changing and cleaning
the air lter too often can ac tually reduce lter
e󰀩ciency and increase the oppor tunity for
traces of dust to enter the engine. Wait until
the element really needs servicing as indicated
by the air lter restriction gauge.
● When the air lter element is removed or
re placed, make sure all dust is cleaned out
of the air cleaner housing and hose. Use a
damp cloth and wipe the interior of the canister
and hose clean (a lit tle dirt left here will be
sucked into the engine and reduce engine life).
When the lter is reinstalled, make sure the
element is held tight and straight in the
canister for proper seating and sealing.
● Periodically check the air intake hose for cuts,
nicks, etc., and the hose clamps for tightness.
Oil
● Use only multi-viscosity oils as specied with
the viscosity matching ambient temperatures
for the en gine operating conditions. This will
aid starting in cold weather and assure proper
lubrication in hot weather.
● Use only Kohler oil lters. Aftermarket lters
may not seal properly and/or have the incor-
rect pressure relief valve for proper lubrication.

Walker B23 Specifications

General

Brand	Walker
Model	B23
Category	Lawn Mower
Language	English