Maintenance Instructions

cleaning

IMPORTANT: Any dust left on the inside of the outlet tube will go into the engine and cause wear.

8.Check the outside surface of the outlet tube for smoothness and cleanness (this is the sealing surface).

9.Insert and seat the safety filter and primary filter element­ carefully into the canister, applying pressure­ at the outer rim of the filter; not at the flexible center. Make sure the filter element is completely in place before installing the cover.

NOTE: DO NOT use petroleum based lubri­ cants on the sealing surfaces of the filter; use talcum­ powder or dry silicone lubricants if re- quired for filter installation.

Safety Filter

Canister

Primary

Radial Sealing Filter Element

Surface

Air Filter Element Replacement

10.Install the Enginaire™ air cleaner cover. Latch the two (2) cover latches.

Cover

Latch

Cover

Latch

Proper Orientation of Air Cleaner Cover

11.Check the air intake hose for cuts, nicks, cracks, etc., and the hose clamps for tightness.

12.Reset the air filter restriction gauge (press but- ton on the end of the indicator).

Engine Cooling System

Cooling Air Intake System

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. Also, visu- ally check inside cylinder head shroud and between cylinder head fins for material packed in this area which would prevent cooling airflow; remove shroud and clean as required.

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.

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Walker MC19 manual Air Filter Element Replacement, Proper Orientation of Air Cleaner Cover, Cooling Air Intake System