Land PrideTable of Contents
Section 5: Maintenance & Lubrication
Transaxle Purging Procedures
It is critical that air is purged from the hydrostatic drive system to keep it efficient. This is because compression and expansion rate of air is higher than that of oil.
This purge procedure should be implemented any time the hydrostatic system has been opened to facilitate maintenance or after the oil has been changed.
Symptoms of a hydrostatic system that has not been purged may be:
1.Noisy operation.
2.Lack of power after short term operation.
3.High operation temperature and excessive expansion of oil.
Refer to Figure 5-7 on page 34:
Before purging the system, make sure fill tubes (#9) are full of oil and expansion tanks (#10) are filled to the cold full line. Squeeze all air from the fill tubes and add oil if the expansion tanks are low. See page 43 for transaxle oil specifications.
The following procedures are best performed with the mower drive wheels off the ground. Then repeated under normal operating conditions. If this is not possible, then the procedure should be performed in an open area free of any objects or bystanders.
1.Open both transaxle bypass valves by pulling out on the bypass valve rods (#12) and lifting them into the slot to lock them in position. Bypass valve rods are located at the rear of the engine platform.
2.Start the engine and place both control levers in neutral. Slowly move the control levers completely forward and reverse 5 to 6 times.
3.Close both bypass valves by lifting the bypass valve rods out of their slots and pushing them forward.
4.With the engine running and the control levers in neutral, slowly move the levers forward and reverse 5 to 6 times.
5.Stop engine and check fill tubes (#9) and expansion tanks (#10). Squeeze any air out that might be in the expansion tubes and add oil to the expansion tanks if low.
IMPORTANT: The transaxle is considered purged when it operates at normal noise levels and moves smoothly forward and reverse at normal speeds.
6.It may be necessary to repeat Steps 1 to 5 until all air is completely purged from the system and the transaxle operates at normal noise levels and travels at normal speeds.
Fuel System
!DANGER
•Replacement of fuel system parts (i.e. gas caps, hoses, fuel tanks, fuel filters, etc.) must be the same as original parts. Fire and/or explosion can occur if not followed.
•Observe safe fuel handling precautions.
•Do not smoke while handling fuel.
•Do not fill tank with engine running or while engine is hot. Allow the engine to cool before filling. Spilling fuel over the engine, muffler, or a hot object may result in a fire or explosion.
•Allow engine to cool before servicing the fuel system.
•Do not fill fuel tanks to the top if mowing on hilly terrain or in hot weather. Gas can rise up to the fuel cap vent hole and seep out.
•Clean up any gasoline spills immediately.
•Keep fuel away from open flame or spark.
•Store the mower away from open flame or spark if there is fuel in the tank.
•Use extra caution when handling gasoline and other fuels. They are flammable and vapors are explosive. A fire or explosion from gasoline can burn you and others and can damage property.
•Refuel outdoors preferably, or in well ventilated areas.
•Never attempt to start engine when there is a strong odor of gasoline fumes present. Locate and correct cause.
•Store gasoline in an approved container and keep it out of children’s reach.
•Never buy more than a 30 day supply of gasoline.
•Do not fill gasoline containers inside a vehicle, on a truck, or on a trailer. Interior carpets and plastic truck bed liners insulate the container and slow loss of static charge.
•When practical, remove equipment from the truck or trailer and refuel the equipment with its wheels on the ground. If this is not possible, then refuel the equipment on the truck or trailer using a portable container and not a gasoline dispenser nozzle. If a gasoline dispenser nozzle must be used, keep the nozzle in contact with the rim of the fuel tank or container opening at all times until fueling is complete.
•Gasoline is a poison harmful or fatal if swallowed.
•
•Avoid prolonged breathing of vapors.
•Keep face away from nozzle and gas tank opening.
•Keep gas away from eyes and skin.
The fuel tanks are located in the mower’s fenders. Total capacity for the fuel tanks is 12 U.S. gallon.
When filling the fuel tanks, disengage blade engagement switch, place control levers in park position and stop engine. Allow engine to cool before filling the tanks.
1/12/09 | Z44 & Z52 (S/N 526171 & Above) Zero Turning Radius Mowers Riding Mowers | 35 |
