Toro TITAN HD 1500 Series Operator's Manual page 53

1. Engine
Changing the Hydraulic-System
Filters and Fluid
Service Interval: After the first 75 hours—Change the
hydraulic-system filters and fluid.
Every 500 hours—After the initial
change—change the hydraulic-system
filters and fluid when using Toro
500 fluid (change it more often under severe
conditions).
Every 250 hours—After the initial
change—change the hydraulic-system
filters and fluid when using Mobil 1 15W50 fluid
(change it more often under severe conditions).
Change the filters and fluid at the same time. Do
not use the fluid again. Purge any air in the system
after you install the new filters and add fluid. Refer to
Bleeding the Hydraulic System (page
Repeat the bleeding process until the fluid remains
at the F C line in the reservoir after purging.
ULL OLD
Failure to properly perform this procedure can
result in irreparable damage to the transaxle drive
system.
Removing Hydraulic-System Filters
1. Park the machine on a level surface, disengage
the blade-control switch (PTO), and engage the
parking brake.
2. Shut off the engine, remove the key, and wait
for all moving parts to stop before leaving the
operating position.
3. Allow the engine to cool.
Figure 72
2. Expansion tank
® HYPR-OIL
54).
4. Locate the filter and guards on each
transaxle-drive system
5. Remove the 3 screws securing the filter guard
and guard
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1. Transaxle drive
2. Filter
3. Filter guard
6. Carefully clean the area around the filters.
Important:
™
hydraulic system, or contamination may
occur.
7. Place a drain pan below the filter to catch the
fluid that drains when the filter and vent plugs
are removed.
8. Locate and remove the vent plug on each
transmission
9. Unscrew the filter to remove it, and allow the
fluid to drain from the drive system.
10. Repeat this procedure for both filters.
Installing the Hydraulic-System Filters
1. Apply a thin coat of hydraulic fluid on the surface
of the rubber seal of each filter.
2. Turn the filter clockwise until the rubber seal
contacts the filter adapter, then tighten the filter
an additional 3/4 to 1 full turn.
3. Repeat for the opposite filter.
4. Install the filter guards over each filter that you
previously removed.
5. Use the 3 screws to secure the filter guards.
53
(Figure 73).
(Figure 73).
Figure 73
Right side shown
4. Screws
5. Vent plug
Do not allow dirt to enter the
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