Hex Nut

Six Speed

Adjustable Cable

Cable Bracket

Figure 16

LUBRICATION

CAUTION: DISCONNECT SPARK PLUG WIRE BEFORE SERVICING.

WHEELS - If your mower is equipped with ball bearing wheels, lubricate at least once a season with a light oil, all other types require no lubrication. However, if the wheels are re- moved for any reason, lubricate the surface of the axle bolt and the inner surface of the wheel with light automotive oil.

ENGINE - Follow engine manual for lubrication

instructions.

BLADE CONTROL - Lubricate the pivot points on the blade control handle and the brake cable at least once a season with light oil. The blade control must operate freely in both directions.

TRANSMISSION - The transmission is pre-lubricated and sealed at the factory. It does not require checking. If disassembled for any reason, fill with 2 ounces of Alvania grease, part number 737-0168.

MAINTENANCE

For best results your blade should be sharp. The blade may be resharpened by removing it and either grinding or filing the cutting edge keeping as close to the original bevel as possible.

Improper blade balance will result in exces- sive vibration causing eventual damage to the engine and mower. Be sure to carefully balance blade after sharpening.

After prolonged use, especially in sandy soil conditions, the blade will become worn and lose some of the original shape. Cutting effi- ciency will be reduced and the blade should be replaced. Replace with an approved factory

replacement blade only. Possible damage re- sulting from blade unbalance condition is not the responsibility of the manufacturer.

ENGINE

Refer to the separate engine manual for en- gine maintenance instructions.

Maintain engine oil as instructed in the sepa- rate engine manual packed with your unit. Read and follow instructions carefully.

Under normal conditions service air cleaner as instructed in the separate engine manual

packed with your unit. Clean every few hours under extremely dusty conditions. Poor engine performance and flooding usu- ally indicates that the air cleaner should be serviced.

The spark plug should be cleaned and the gap reset once a season. Spark plug replace- ment is recommended at the start of each mowing season; check engine manual for cor- rect plug type and gap specifications.

NOTE: This spark ignition system meets all requirements of the Canadian Interfer- ence-Causing Equipment Regulations.

Clean the engine regularly with a cloth or brush. Keep the cooling system (blower hous- ing area) clean to permit proper air circulation which is essential to engine performance and life. Be certain to remove all grass, dirt and combustible debris from muffler area.

DECK

The underside of the mower deck should be cleaned after each use to prevent a buildup of grass clippings, leaves, dirt or other matter. If this debris is allowed to accumulate, it will in- vite rust and corrosion, and may prevent proper mulching.

The deck may be cleaned by tilting the mower and scraping clean with a suitable tool (make certain the spark plug wire is disconnected).

CUTTING BLADE

WARNING: Be sure to disconnect and ground the spark plug wire and remove ignition key before working on the cutting blade to prevent acci- dental engine starting. Protect hands by using heavy gloves or a rag to grasp the cutting blade.

Tip mower as specified in separate engine

manual. If it is not specified tip with carburetor

up.

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Troy-Bilt OG-4905 owner manual Lubrication, Maintenance, Engine, Deck, Cutting Blade