NATIONAL® HYDRO 70" TRIPLEX
8—MAINTENANCE
To avoid possible serious bodily injury, before performing any adjustments, maintenance, or lubrication, place all controls in “Neutral”, lower the mowers to the ground, engage parking brake, turn ignition switch off and remove key.
8.1—GENERAL MAINTENANCE
The long
1.Keep tractor and mowers clean.
2.Keep all moving parts properly lubricated.
3.Keep all parts properly adjusted.
4.Inspect for loose, worn or damaged parts (Fittings and hoses).
5.Keep shields in place at all times.
6.Keep tires properly inflated.
If your inspection reveals worn or damaged parts, replace these parts before operating machine or before actual breakdown occurs.
To avoid injury from hot, high pressure oil, never disconnect hydraulic hoses with attachments in up position. Never run hands across tubes, hoses or fittings to check for leaks. Hydraulic fluid escaping under pressure can have sufficient force to penetrate skin.
8.2—ASSEMBLY & DISASSEMBLY
Use the illustrations in the Parts Section as reference for the disassembly and assembly of components. Always maintain relative position of parts when disassembling. Clean and lubricate individual parts and components as required.
8.3—BATTERY
1.Make certain the ignition switch is in the “Off” position and the keys have been removed.
2.Refer to Section 3.4 in this manual for battery specifications.
Always wear protective glasses or goggles and protective clothing when working with batteries. You must follow the battery manufacturer’s instructions on safety, maintenance and installation procedures.
3.When the battery is being installed or removed, make sure that the positive and negative terminals do not come in contact with metal tractor parts at the same time or severe damage will result.
Always connect the “ground” (black) cable last and remove it first whenever performing any maintenance.
4.Battery connections must be kept clean and tight at all times. Loose cables will cause eventual battery failure. Keep terminal covers in place.
5.Use soap and water to clean the battery as required. Care must be taken to prevent soap and water from getting inside the battery.
6.Brighten the terminal contact surfaces with steel wool.
7.Apply a light coat of petroleum jelly or chassis lubricant to terminals and cable ends to prevent corrosion.
8.Tighten cables securely to battery terminals.
Batteries contain sulfuric acid and generate explosive mixtures of hydrogen and oxygen gases. Keep any device which may cause sparks or flames away from the battery to prevent explosion.
17