Hydraulic System Maintenance; Servicing The Hydraulic System - Toro 74549 Operator's Manual

Hydraulic System
Maintenance
Servicing the Hydraulic
System
Hydraulic Oil Type: Toro
or Mobil ® 1 15W-50 synthetic motor oil.
Hydraulic System Oil Capacity: 67 oz. (2.0 l)
Important: Use oil specified. Other fluids could cause
system damage.
Checking the Hydraulic Fluid
Service Interval: After the first 8 hours
Every 50 hours
Note: There are two ways of checking the hydraulic oil.
One is when the oil is warm and one is when the oil is cold.
The baffle inside the tank has two levels depending if the oil
is warm or cold.
1. Position machine on a level surface.
2. Disengage the power take off (PTO) and shut off the
engine.
3. Wait for all moving parts to stop before leaving the
operating position and then set the parking brake.
4. Clean area around cap and filler neck of hydraulic tank
(Figure 76).
4
Figure 76
1. Cap
2. Baffle
5. Remove cap from filler neck. Look inside to check the
fluid level in the reservoir. (Figure 76).
6. Add fluid to the reservoir until it reaches the cold level
of the baffle.
7. Run the machine at low idle for 15 minutes to allow any
air to purge out of the system and warm fluid. Refer to
Starting and Stopping the Engine.
® ™
HYPR-OIL 500 hydraulic oil
1 3
2
G012005
3. Cold fluid level-full
4. Hot fluid level-full
8. Recheck the fluid level while the fluid is warm. If
required, add fluid to the reservoir until it is between
the hot level and the cold level.
Note: The fluid level should be below the hot level of
the baffle, when the fluid is warm (Figure 76).
9. Install cap on filler neck.
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. Gangrene may result if this is
not done.
• Keep 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 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 Fluid
Service Interval: Every 250 hours—Change the hydraulic
filter and hydraulic oil when using Mobil
1 oil.
Every 500 hours/Yearly (whichever
comes first)—Change the hydraulic filter
and hydraulic oil when using Toro
HYPR-OIL
Note: Change the hydraulic fluid more frequently in severe
conditions or in a hot operating climate.
WARNING
Hot hydraulic fluid can cause severe burns.
Allow the hydraulic fluid to cool before performing
any maintenance to the hydraulic system.
1. Disengage the PTO and set the parking brake.
2. Stop the engine and wait for all moving parts to stop
before leaving the operating position.
3. Remove hydraulic reservoir cap.
50
®
™
500 hydraulic oil.
®