REV B 4-6 114242
the oil has been changed.
The resulting symptoms in hydrostatic systems may be:
1. Noisy operation.
2. Lack of power or drive after short term operation.
3. High operation temperature and excessive expansion of
oil.
Before starting, make sure the transaxle is at the proper oil
level. If it is not, fill to the specifications outlined in this man-
ual.
The following procedures are best performed with the vehicle
drive wheels off the ground. Then repeated under normal oper-
ating conditions. If this is not possible, then the procedure
should be performed in an open area free of any objects or
bystanders.
1. Raise and block the mower up so the drive wheels are off
of the floor.
2. Position the control lever in the neutral position.
Disengage the deck clutch switch. Figure 4-14
3. With the bypass valve open and the engine running,
slowly move the directional control in both forward and
reverse directions (5 or 6 times). Figure 4-15
4. With the bypass valve closed and the engine running,
slowly move the control lever in both forward and
reverse directions (5 or 6 times). Check the oil level, and
add oil as required after stopping the engine.
5. It may be necessary to repeat Steps 3 and 4 until all the
air is completely purged from the system. When the
transaxle operates at normal noise levels and moves
smoothly forward and reverse at normal speeds, then the
transaxle is considered purged.
Tires
It is important for level mowing that the tires have the same
amount of air pressure. The recommended pressures are:
Drive wheels . . . . . . . . . . . . . . . . . . . . . 8-12 psi (55-83 KPa)
Front wheels . . . . . . . . . . . . . . . . . . . . . 8-12 psi (55-83 KPa)
If you wish to use non-pneumatic tires on your Hustler
®
mower the tires must be an approved tire purchased from Hus-
tler
®
Turf Equipment. Warranty claims will be denied on any
mower equipped with unapproved non-pneumatic tires.
Never work under the machine or attachment unless it is
safely supported with jack stands.
Make certain machine is secure when it is raised and
placed on the jack stands. The jack stands should not
allow the machine to move when the engine is running
and the drive wheels are rotating. Use only certified jack
stands. Use only appropriate jack stands, with a mini-
mum weight rating of 2000 pounds to block the unit up.
Use in pairs only. Follow the instructions supplied with
the vehicle stands.
Figure 4-14
Steering control lever
Shown with steering control
levers in neutral position
Figure 4-15
Bypass valve rod
(Right rod shown)
Bypass valve rod shown in operating position
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