Toro TITAN ZX6020, Operator'S Manual, Page: 42 / 60

Installing the Hydraulic System Filters
Service Interval: After the first 50 hours
Every 400 hours
1. Apply a thin coat of oil on the surface of the rubber
seal of each filter (Figure 53).
2. Turn the filter clockwise until rubber seal contacts the
filter adapter then tighten the filter an additional 3/4
to 1 full turn (Figure 53).
3. Repeat step 2 for the other filter.
4. Align the filter guards over each filter; refer to step 4 of
Removing Hydraulic System Filters (page 41).
5. Secure the filter guards with the
3 screws removed in step4 of
Removing Hydraulic System Filters (page 41)Use the
three screws to secure the filter guards.
6. Add oil to the hydraulic system as follows:
A. Ensure that the vent plugs and reservoir cap are
removed before adding the oil (Figure 51 and
Figure 52).
B. Slowly pour the specified oil through expansion
reservoir until oil comes out of
one of the vent
plug holes and stop filling (Figure 52).
C. Install that vent plug (Figure 52).
Note:
Torque the plug to 20.3 N-m (180 in-lb).
D. Add oil through the expansion reservoir until oil
comes out of the remaining vent plug hole on the
second transmission and stop filling (Figure 52).
E. Install that vent plug (Figure 52).
Note:
Torque the plug to 20.3 N-m (180 in-lb).
7. Add oil through the expansion reservoir until it reaches
the FULL COLD line on the expansion reservoir and
install the cap for the reservoir (Figure 51).
8. Bleed the hydraulic system; refer to
Bleeding the Hydraulic System (page 42).
Important:
Failure to perform the Bleeding
the Hydraulic System procedure after changing
hydraulic filters and oil may result in irreparable
damage to the transaxle drive system.
Bleeding the Hydraulic System
1. Raise the rear of machine up and support with jack
stands (or equivalent support) just high enough to
allow drive wheels to turn freely.
G010333
1
Figure 54
1. Jacking points
2. Go to the operator's position.
3. Start engine and move throttle control ahead to 1/2
throttle position.
4. Disengage parking brake.
5. Cycle the hydraulic system by performing the following:
A. Move the bypass levers rearward and then down
to lock them in place (valve open position); refer
to To Push the Machine (page 28).
B. With the bypass valves open and the engine
running, slowly move the motion control levers in
both forward and reverse (5 or 6 times).
C. Move the bypass levers up to unlock them
and forward (valve closed position); refer to
To Push the Machine (page 28).
D. With the bypass valve closed and the engine
running, slowly move the directional control in
both forward and reverse directions (5 to 6 times).
6. Stop the engine and check the oil level in the expansion
reservoir. Add the specified oil as until it reaches
the FULL COLD line on the expansion reservoir
(Figure 51).
7. Repeat step 5 until all the air is completely purged from
the system.
Note:
When the transaxle operates at normal noise
levels and moves smoothly forward and reverse at
normal speeds, then the transaxle is considered purged.
8. Check the oil level in the expansion reservoir one last
time. Add the specified oil as until it reaches the FULL
COLD line on the expansion reservoir if necessary
(Figure 51).
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