Toro 74314 - Page 55

Hydraulic System
Maintenance
Hydraulic System Safety
• Seek immediate medical attention if uid is injected
into skin. Injected uid must be surgically removed
within a few hours by a doctor .
• Ensure that all hydraulic-uid hoses and lines are
in good condition and all hydraulic connections
and ttings are tight before applying pressure to
the hydraulic system.
• Keep your body and hands away from pinhole
leaks or nozzles that eject high-pressure hydraulic
uid.
• Use cardboard or paper to nd hydraulic leaks.
• Safely relieve all pressure in the hydraulic system
before performing any work on the hydraulic
system.
Servicing the Hydraulic
System
Hydraulic Fluid T ype: T oro
®
HYPR-OIL
™
500
hydraulic oil or Mobil
®
1 15W -50.
Important: Use the uid specied. Other uids
could cause system damage.
Checking the Hydraulic Fluid
Service Interval : Every 40 hours —Check the
hydraulic uid level.
1. Park the machine on a level surface, move the
speed-control lever to the N EUTRAL position,
disengage the blade-control switch (PT O), and
engage the parking brake.
2. Shut of f the engine, remove the key , and wait
for all moving parts to stop before leaving the
operating position.
3. Allow the engine and the hydraulic system to
cool for 10 minutes.
Note: T o get the correct reading, check the
hydraulic uid level when the machine is cool.
4. Raise the seat up.
5. Clean the area around the dipstick of the
hydraulic-system reservoir ( Figure 63 ).
6. Remove the dipstick from the hydraulic reservoir
( Figure 63 ).
7. Wipe the dipstick of f and thread the dipstick into
the reservoir .
8. Remove the dipstick and look at the end
( Figure 63 ). If the uid level is at the add mark,
slowly pour only enough uid into the hydraulic
reservoir to raise the level to the full line.
Important: Do not overll the hydraulic
units with uid, as damage may occur . Do
not run the machine with the uid below the
add mark.
9. Install the dipstick.
g025772
Figure 63
1. Full 2. Add
Replacing the Hydraulic Fluid and
Filter
Service Interval : After the rst 100 hours —Change
the hydraulic lter and reservoir
hydraulic uid when using any type
of uid.
Every 250 hours —Change the hydraulic lter
and reservoir hydraulic uid when using Mobil
®
1 uid (more often in dirty or dusty conditions).
Every 500 hours —Change the hydraulic lter
and reservoir hydraulic uid when using T oro
®
HYPR-OIL
™
500 hydraulic uid (more often in
dirty or dusty conditions).
Note: Use a summer lter when the temperature is
0°C (32°F) and above. Use a winter lter when the
temperature is 0°C (32°F) and below .
1. Park the machine on a level surface, move the
speed-control lever to the N EUTRAL position,
disengage the blade-control switch (PT O), and
engage the parking brake.
2. Shut of f the engine, remove the key , and wait
for all moving parts to stop before leaving the
operating position.
3. Carefully clean the area around the lter .
Important: Ensure that no dirt or
contamination enter the hydraulic system.
4. Unscrew and remove the lter and allow the uid
to drain from the reservoir .
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