Walker MC19 manual Engine Cooling Air Intake Screen Cooling Fin Access Panels

Maintenance Instructions

cleaning

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 described below.

DAnger

Make sure to keep hands clear of exhaust pipe, muffler, and moving parts when checking airflow.

Every 100 hours, inspect and clean the cooling fins (more often when operating in extremely dusty, dirty conditions). Remove the two (2) cooling fin access panels in the engine shroud and clean the cooling fins and external surfaces using compressed air. Make sure to reinstall the access panels before op­ erating the engine.

NOTE: If dirt is packed into the cooling fins it may be necessary to remove the engine shroud in order to thoroughly clean the cooling fins.

Engine Cooling

Fin Access Panels

Kohler Engine

Shroud

Engine Cooling Air

Intake Screen

Engine Cooling Air Intake Screen and

Cooling Fin Access Panels

IMPORTANT: Yearly, it is good maintenance prac- tice to remove the engine cooling shroud and clean the cylinder head cooling fins thoroughly to prevent overheating and extend engine life. Make sure cool- ing shroud is reinstalled properly. This procedure will require removing the engine from the chassis.

Check Airflow

with Hand

Cooling System Airflow

Grass Buildup in Mower Deck Housing

DAnger

Before raising or removing the mower deck for cleaning, stop the engine, re­move the ignition key, and disconnect the spark plug wires.

1.Raise the deck lock lever handle on each side of the carrier frame and pull out to release car­ rier frame for tilting action.

2.Using the carrier frame lift handle, raise deck to the TILT-UPposition and insert the deck hook into the tilt-up latch on the tractor body.

Tilt-Up Hook and

Latch Connected

Tilt-Up

Latch

Tilt-Up

Hook

Deck Lock Lever

Deck Secured in TILT-UP Position

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