Toro 74310 Operator's Manual page 50

1. Full
WARNING
Hydraulic fluid escaping under pressure can
penetrate skin and cause injury.
• If hydraulic fluid is injected into the skin it
must be surgically removed within a few
hours by a doctor familiar with this type of
injury or gangrene may result.
• Keep your body and hands away from
pin-hole leaks or nozzles that eject
high-pressure hydraulic fluid.
• Use cardboard or paper to find hydraulic
leaks.
• Safely relieve all pressure in the hydraulic
system before performing any work on the
hydraulic system.
• Make sure that all hydraulic fluid hoses
and lines are in good condition and all
hydraulic connections and fittings are
tight before applying pressure to hydraulic
system.
Replacing the Hydraulic Filter
Service Interval: After the first 100 hours—Change the
hydraulic filter and reservoir hydraulic
fluid when using any type of oil.
Every 250 hours—Change the hydraulic filter and
reservoir hydraulic fluid when using Mobil
(more often in dirty or dusty conditions).
Every 500 hours—Change the hydraulic filter
and reservoir hydraulic fluid when using Toro
HYPR-OIL ™ 500 hydraulic fluid (more often in dirty
or dusty conditions).
Note: Use a summer filter when the temperature is 0°C
(32°F) and above. Use a winter filter when the temperature is
0°C (32°F) and below.
1. Move the speed-control lever to the N
to stop the machine.
Figure 61
2. Add
®
EUTRAL
2. Disengage the PTO, engage the parking brake, shut off
the engine, and wait for all moving parts to stop.
3. Carefully clean the area around the filter.
Important: Ensure that no dirt or contamination
enter the hydraulic system.
4. Unscrew and remove the filter and allow the oil to
drain from the reservoir.
Important: Do not change the hydraulic system
oil (except for what can be drained when changing
the filter), unless the oil has been contaminated or
been extremely hot. Changing the hydraulic fluid
unnecessarily could damage the hydraulic system
by introducing contaminates into the system.
5. Before installing the new filter, fill it with Toro
HYPR-OIL
of oil on the surface of the rubber seal.
6. Turn the filter clockwise until the rubber seal contacts
the filter adapter, then tighten the filter an additional
2/3 to 3/4 turn.
7. Fill the reservoir as stated in
Fluid (page
8. Raise the rear of the machine up and support it with
jack stands (or equivalent support) just high enough to
allow drive wheels to turn freely.
9. Start the engine and move the throttle control to the
F
ULL
10. Move the speed-control levers to the full-speed
position and run the machine for several minutes.
11. Shut off the machine and check the oil level.
1 oil
®
position
50
™
500 hydraulic fluid and apply a thin coat
Checking the Hydraulic
49).
- position.
THROTTLE
®