Mower Deck Maintenance; Servicing The Cutting Blades - Toro TITAN ZX 4800 Operator's Manual

Bleeding the Hydraulic System
1. Raise the rear of machine up and support it with jack
stands (or equivalent support) just high enough to
allow the drive wheels to turn freely.
Figure 60
1. Jacking points
2. Enter the operator's position, start the engine, move
the throttle control to 1/2 throttle position, and
disengage the parking brake.
A. Move the bypass levers into the pushing the
machine position; refer to
by Hand (page
open and the engine running, slowly move the
motion-control levers in both forward and reverse
directions (5 or 6 times).
B. Move the bypass levers into the operating
the machine position. With the bypass valve
closed and the engine running, slowly move the
directional control in both forward and reverse
directions (5 to 6 times).
C. Shut off the engine and check the fluid level in the
expansion reservoir. Add the specified fluid as
until it reaches the Full Cold line on the expansion
reservoir.
3. Repeat step 2 until all of 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.
G010333
1
Pushing the Machine
25). With the bypass valves
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 at you or bystanders,
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
Park the machine on a level surface, disengage the
blade-control switch, move the motion-control levers outward
to the P position, shut off the engine, and remove the key.
ARK
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 45).
2. Inspect the blades, especially the curved area
61).
Note: If you notice any damage, wear, or a slot
forming in this area (items 3 and 4 in
immediately install a new blade.
43
(Figure 61).
Sharpening the Blades
(Figure
Figure 61),