Bleeding The Hydraulic System - Toro 74490 Operator's Manual

48in, 52in, or 60in riding mower
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Figure 84
Bleeding the Hydraulic
System
1.
Raise the rear of machine and support it with
jack stands (or equivalent support) just high
enough to allow the drive wheels to turn freely.
Figure 85
1. Jacking points
2.
Start the engine, move the throttle control ahead
to the 1/2 throttle position, and disengage the
parking brake.
A.
Move the bypass levers into the pushing the
machine position. With the bypass valves
open and the engine running, slowly move
the motion-control levers in both forward
and reverse 5 or 6 times.
B.
Move the bypass levers into the operating
the machine position.
C.
With the bypass valve closed and the
engine running, slowly move the control
lever in both forward and reverse directions
5 to 6 times.
D.
Shut off the engine and check the fluid
level in the expansion reservoir. Add the
specified fluid until it reaches the F
line on the expansion reservoir.
3.
Repeat step
purged from the system.
Note:
When the transaxle operates at normal
noise levels, moves smoothly forward, and
reverses at normal speeds, it is purged.
4.
Check the fluid level in the expansion reservoir
g027477
a final time. Add the specified fluid as until it
reaches the F
reservoir.
g017625
64
2
until all the air is completely
C
line on the expansion
ULL
OLD
C
ULL
OLD

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