Hydraulic System Maintenance; Hydraulic System Safety; Checking The Hydraulic System - Toro Groundsmaster 7210 Series Operator's Manual

Hydraulic System
Maintenance
The reservoir is filled at the factory with approximately
4.7 liters (5 quarts) of high quality tractor
transmission/hydraulic fluid. The recommended
replacement fluid is as follows:
Toro Premium Transmission/Hydraulic Tractor Fluid
(Available in 5 gallon pails or 55 gallon drums. See parts
catalog or authorized Toro distributor for part numbers.)
Alternate fluids: If the Toro fluid is not available,
Mobil® 424 hydraulic fluid may be used.
Note:
Toro does not assume responsibility for
damage caused by improper substitutions.
Note:
Many hydraulic fluids are almost colorless,
making it difficult to spot leaks. A red dye additive for
the hydraulic system oil is available in 20 ml (0.67 oz)
bottles. One bottle is sufficient for 15 to 22 L (4 to 6
US gallons) of hydraulic fluid. Order Part No. 44-2500
from your authorized Toro distributor.

Hydraulic System Safety

•
Seek immediate medical attention if fluid is injected
into skin. Injected fluid must be surgically removed
within a few hours by a doctor.
•
Ensure that all hydraulic-fluid hoses and lines are
in good condition and all hydraulic connections
and fittings 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
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.
Checking the Hydraulic
System
Service Interval: Before each use or daily
Check the level of the hydraulic fluid before you first
start the engine and daily thereafter.
1. Position the machine on a level surface.
2. Move the motion-control levers to the
N - position and start the engine.
EUTRAL LOCK
Note:
Run the engine at the lowest possible
rpm to purge the system of air.
Important:
Do not engage the PTO.
3. Raise the deck to extend the lift cylinders, shut
off the engine, and remove the key.
4. Raise the seat to access the hydraulic fluid tank.
5. Remove the hydraulic fill cap from the filler neck
(Figure 92).
1. Dipstick
6. Remove the dipstick and wipe it with a clean rag
(Figure 92).
7. Place the dipstick into the filler neck; then
remove it and check the level of fluid
Note:
If the level is not within the notched area
of the dipstick, add enough high-quality hydraulic
fluid to raise the level to within the notched area.
Important:
Do not overfill.
8. Replace the dipstick and thread the fill cap
finger-tight onto the filler neck.
9. Check all hoses and fittings for leaks.
61
Figure 92
2. Fill cap
(Figure
g004494
92).