Fuel System

1.A Fuel Strainer/Water Seperator is provided between the fuel tank and fuel pump. It should be inspected daily and purged of any contaminents.

2.The Fuel Pump provided on the engine is a 12 VDC orbital type.

3.The Main Fuel Filter is a spin-on cartridge.

Air Cleaner

Service the air cleaner element as instructed in the Yanmar Owner’s Manual.

Hydraulic Oil

Warning! Never overfill the hydraulic units. Damage can occur if the oil level is not within the proper operating range.

NOTE: When adding hydraulic oil, do so in small quantities and recheck the oil level before adding more. It is important that you do not overfill the reservoir.

Battery Maintenance

The battery is filled with battery acid and then sealed at the factory. However, every 50 operating hours remove the fill caps and check the level of the liquid electrolyte in the battery. If the level in any of the six cells has dropped below the bottom of the split ring inside the fill hole, refill the cell with distilled water.

Spray the terminals and exposed wire with a battery terminal sealer, or coat the terminals with a thin coat of grease or petroleum jelly, to protect against corrosion.

Always keep the battery cables and terminals clean and free of corrosion.

Avoid tipping. Even a sealed battery will leak electrolyte when tipped.

Warning! Batteries contain sulfuric acid and may emit explosive gases. Use extreme caution when handling batteries. Keep batteries out of the reach of children.

Engine Coolant

Checking Engine Coolant Level

Before each use, the engine coolant level in the overflow reservoir should be checked to ensure it is within the operating range. Engine coolant absorbs heat from the engine and transfers the heat to the air flowing through the radiator. If the coolant level becomes low, the engine may overheat and could cause severe damage to the engine.

Use a permanent type antifreeze containing corrosion and rust inhibitors. Dilute the antifreeze with water at a 1:1 ratio to mix the coolant solution (50% antifreeze:50% water).

NOTE: Distilled water is recommended for the coolant solution IF your tap water has a high mineral content. Minerals cause scaling in the engine and the radiator coolant passages. System efficiency will be greatly reduced over time and severe engine damage may result. Refer to the antifreeze manufacturer’s instructions for additional information on dilution procedures.

1.Check the coolant level when the engine is cold and the tractor is on a level surface.

2.Check the coolant level in the overflow reservoir on the right side of the tractor.

3.If the coolant level is below the “LOW” mark, remove the cap from the reservoir and add coolant solution to the “FULL” mark. Refer to Fig. 6-2.

Figure 6-2

NOTE: The cooling system is a closed type. Normally, to prevent air from entering the system, the radiator cap should not be removed.

If the overflow reservoir is empty, the radiator cap should be removed and the coolant level in the radiator checked before adding coolant to the reservoir. If necessary, first refill the system through the radiator filler neck as follows:

WARNING! It is dangerous to remove the radiator cap when the system is hot. Allow the system to cool before removing the radiator cap.

28Section 6— Maintenance & Adjustments