Filter
Top Products
35
Section 5: Maintenance & Lubrication
1/12/09
Z44 & Z52 (S/N 526171 & Above) Zero Turning Radius Mowers Riding Mowers Accu-Z Razor
®
357-187M
Land Pride
Table of Contents
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.
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.
IMPORTANT: The transaxle is considered purged
when it operates at normal noise levels and moves
smoothly forward and reverse at normal speeds.
Fuel System
!
DANGER
• Replacement offuel 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. Gascan rise up to the fuel capvent 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 isnot possible, thenrefuelthe equipmenton the truckor
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.
• Long-term exposure to vapors can cause serious injury and
illness.
• 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.