Mower Deck Maintenance; Servicing The Cutting Blades - Toro Titan MX4800 Operator's Manual

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.
Figure 52
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 Pushing the Machine by Hand (page
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
the Machine by Hand (page
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
49).
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 49).
G010333
1
24).
Pushing
24).
(Figure
Mower Deck
Maintenance

Servicing the Cutting Blades

Maintain sharp blades throughout the cutting season because
sharp blades cut cleanly without tearing or shredding the grass
blades. Tearing and shredding turns grass brown at the edges,
which slows growth and increases the chance of disease.
Check the cutter blades daily for sharpness, and for any
wear or damage. File down any nicks and sharpen the
blades as necessary. If a blade is damaged or worn, replace
it immediately with a genuine Toro replacement blade. For
convenient sharpening and replacement, you may want to
keep extra blades on hand.
WARNING
A worn or damaged blade can break, and a piece
of the blade could be thrown into the operator's
or bystander's area, resulting in serious personal
injury or death.
• Inspect the blade periodically for wear or
damage.
• Replace a worn or damaged blade.
Before Inspecting or Servicing the
Blades
1. Park the machine on a level surface, disengage the
blade-control switch (PTO), and set the parking brake.
2. Turn the ignition key to Off. Remove the key.
Inspecting the Blades
Service Interval: Before each use or daily
1. Inspect the cutting edges
Note: If the edges are not sharp or have nicks, remove
and sharpen the blades. Refer to
(page 42).
2. Inspect the blades, especially the curved area
53).
Note: If you notice any damage, wear, or a slot
forming in this area
new blade.
40
(Figure 53).
Sharpening the Blades
(Figure
(Figure 53), immediately install a