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 Toro distributor for part numbers.)
Alternate fluids: If the Toro fluid is not available,
Mobil® 424 hydraulic fluid may be used.
Note:
Toro will 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 (2/3 oz)
bottles. One bottle is sufficient for 15-22 liters (4-6
gallons) of hydraulic fluid. Order part number 44-2500
from your Authorized Toro Distributor.

Hydraulic System Safety

•
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.
•
Seek immediate medical attention if fluid
is injected into skin. Injected fluid must be
surgically removed within a few hours by a
doctor.
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 85).
1. Dipstick
6. Remove the dipstick and wipe it with a clean rag
(Figure 85).
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.
60
Figure 85
2. Fill cap
(Figure
g004494
85).