Engine cooling system, Air intake screen, Engine air intake screen – Walker MS (13 HP) User Manual
Page 54: Cylinder head cooling fins, Cooling system airflow, Maintenance instructions
Maintenance Instructions
CLEANING
50
IMPORTANT: Service the fuel filter screen only in a
clean area where the fuel filter components will not
be contaminated by any dust and dirt.
1. Close the fuel shut-off valve.
2. Loosen sediment bowl and remove filter screen
and gasket. Replace filter screen, if damaged
(use only Kawasaki replacement filter #49019-
2095).
3. Remove any sediment, wipe clean and reinstall
assembly.
4. Open the fuel shut-off valve.
Engine Cooling System
Air Intake Screen
To prevent engine overheating and possible engine
damage, clean grass clippings, chaff, and dirt from
the rotating engine 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 this area several times
each day to prevent engine overheating.
Engine Air Intake Screen
Cylinder Head Cooling Fins
It is essential for performance and longevity of the
air-cooled engine to keep the cylinder head cooling
fins 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 airflow. If there is little or no airflow, clean the
cooling fins as follows:
NOTE: The planned maintenance schedule calls
for cleaning the cylinder head cooling fins yearly or
every 300 hours as a minimum.
Cooling System Airflow
DANGER
Gasoline is extremely flammable and can
be highly explosive. To minimize danger:
•
Use an approved fuel container for gas-
oline.
•
DO NOT allow open flames or sparks
while performing maintenance or refuel-
ing; DO NOT smoke while working with
fuel.
•
Wipe up spilled gasoline immediately
and completely.
CAUTION
Operating the engine with a blocked air
intake screen, dirty or plugged cooling
fins, and/or cooling shrouds removed will
cause engine damage from overheating.
DANGER
Make sure to keep hands clear of exhaust
pipe, muffler, and moving parts when
checking airflow.
Rotating
Engine Air
Intake Screen
Check for Airflow
Cylinder Head
Shroud