Contaminants or foreign matter in the oil will also damage the pumps . To prevent this:
•Use a filter that captures particles as small as 25 microns or 25 millionths of a meter in diameter.
•Be very careful when you remove or repair a component in the hydraulic system. Thoroughly clean off any component before you work on it.
•Plug the ends of any hose or line you remove with a rubber or plastic plug.
•Use plastic caps to seal off the ends of hydraulic fittings.
•Place any component you remove in a clean plastic bag so it can’t pick up dust or dirt.
•Clean your hands frequently when working on the hydraulic components.
NOTE: The pumps are not
Hydraulic System
Hoses
Check the hoses from the hydraulic oil tank to the oil filter to the hydraulic lines daily for leaks or abrasion and replace any damaged hoses. Make certain there are no kinks or twists in any hose. Look for a flattened condition or any leaks and repair or replace as necessary. A flattened or leaking suction hose will permit cavitation to develop which can destroy the pumps in a short time.
General Battery Information
Warning!
•Should battery acid accidentally splatter into
the eyes or onto the skin, rinse the affected area immediately with clean cold water. If there is any further discomfort, seek prompt medical attention.
•If acid spills on clothing, first dilute it with clean water, then neutralize with a solution of ammonia/water or baking soda/water.
•NEVER connect (or disconnect) battery charger clips to the battery while the charger is turned on, as it can cause sparks.
•Keep all sources of ignition (cigarettes, matches, lighters) away from the battery. The gas generated during charging can be combustible.
•As a further precaution, only charge the battery in a well ventilated area.
•Always shield eyes and protect skin and clothing when working near batteries.
•Batteries contain sulfuric acid and may emit explosive gases. Use extreme caution when handling batteries. Keep batteries out of the reach of children.
Tire Maintenance
Check the tire air pressure before each use. Inflation pressure of the rear tires is important for stability while the mower is in operation. If the tire diameter is not equal between the two tires, the mower will pull to one side. Keep the tires inflated to the recommended pressures. Improper inflation will shorten the tire service life. See the tire side wall for proper inflation pressures. Observe the following guidelines:
•Do not inflate a tire above the maximum pressure shown on the sidewall of the tire.
•Do not reinflate a tire that has been run flat or seriously under inflated. Have a qualified tire mechanic inspect and service the tire.
•Balance inflation pressure between the rear tires to help maintain straight travel (see tire side wall for proper inflation pressure).
•Keep the valve caps tightened to prevent air pressure loss.
Inflation Pressure
Traction Tires — 20 psi max;
Leaking Tires
When a flat tire occurs, repair or replace immediately. The normal procedure is to remove the wheel and replace it. If a tire is getting soft, park the mower on the nearest level, paved area.
1.Rear Tire
a.Put blocks on each side of the opposite traction wheel and jack up the tire that leaks about an inch off the ground.
b.Loosen and remove the lug nuts and remove the wheel.
c.Mount a wheel and tire, replace the lug nuts, and using a torque wrench, tighten them to 60 ± 10
2.Front wheel
a.Set the park brake and block both traction wheels and raise the caster wheel so that the tire is an inch off the ground.
b.Loosen and remove the locknut from the axle assembly and pull the axle assembly from the yoke. The wheel and two spacer sleeves will drop free.
c.Slip the axle assembly through one side of the yoke, through a spacer sleeve, a wheel, the other spacer sleeve and finally through the other side of the yoke.
d.Tighten the locknut on the end of the axle assembly.
e.Lower the mower off the jack and continue mowing.
30Section 6— Maintenance & Adjustments