Maintenance Instructions

CHECKING/SERVICING

Check the coolant level in the coolant recovery tank and maintain the coolant level between the FULL and LOW marks on the recovery tank. When the engine is cold, the coolant level should be at or slightly above the LOW mark on the recovery tank.

If the coolant level is low, remove the radiator cap and fill to the overflow port level and then fill the recovery tank above the LOW mark. Use a pre-mixed 50/50 solution of antifreeze (ethylene glycol) and distilled water to fill the cooling system.

IMPORTANT: The coolant solution of antifreeze and distilled water must be thoroughly pre-mixed before putting it in the engine (adding pure antifreeze into the radiator may cause damage to the engine by causing overheating).

Fan Belt Tension

Check and adjust the fan belt tension to avoid engine overheating and insufficient battery charg- ing. Push on the belt in the middle of the span between the alternator and crankshaft. If properly tensioned, it should deflect about 0.4 in. (10 mm). Also check the belt for cracks or deterioration.

Fan Belt

0.4 in. (10 mm)

Deflection

Fan Belt Tension

Security of Air Filtration Components

NOTE: The following inspection is only an external inspection and should be done without “dis- turbing” the filtration components.

On a daily basis, visually inspect the external condition of the complete air cleaner system. The following items should be inspected:

1.Check the Donaldson Radialseal™ air cleaner canister for damage. Make sure the cover is in place and the cover latches are secure - do not run the engine without the air cleaner cover in place and secure.

2.Inspect the air intake hose for cracks, nicks, cuts, etc., and check the hose clamps for tight- ness.

Battery

NOTE: For initial battery service during setup, refer to Battery Service in Assembly Instructions.

IMPORTANT: Make sure battery is securely mounted in the frame. A loose battery may cause damage to the case resulting in acid leakage and severe damage to the machine. A hazard may be created by damage to critical working parts and safety systems.

Electrolyte Level

The battery electrolyte level should be checked after every 25 hours of operation. To check electrolyte level:

1.Remove battery cell filler caps.

2.Check the electrolyte level. If the level is below the bottom of the vent well, fill with drinking wa- ter to the bottom of the vent wells [1/4 to 1/2 in. (6 to 13 mm) above the plates].

3.Replace filler caps.

IMPORTANT: DO NOT overfill the battery. Electrolyte will overflow through the vented caps onto parts of the machine and WILL result in se- vere corrosion.

Cleaning the Terminals

If battery terminals are corroded, remove battery from the mower. Using a wire brush, remove corrosion with a solution of one part baking soda and four parts water. Rinse with clean water. Coat the terminals with petroleum jelly or terminal protector spray to retard further corrosion.

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