Changing The Hydraulic Fluid - Toro 22323G Operator's Manual

WARNING
Hydraulic fluid escaping under pressure can
penetrate skin and cause injury. Fluid injected
into the skin must be surgically removed
within a few hours by a doctor familiar with
this form 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, never use your hands.
11. Check the fluid level in the hydraulic tank; refer
to Checking the Hydraulic Fluid Level (page 19) and
add fluid to raise the level to mark on dipstick. Do not
over fill the tank.
12. Close the rear access cover.

Changing the Hydraulic Fluid

Service Interval: Every 400 hours/Yearly (whichever comes
first)
Hydraulic Fluid Specification:
Use only one of the following fluids in the hydraulic system:
•
Toro Premium Transmission/Hydraulic Tractor
Fluid (refer to your Authorized Toro Dealer for more
information)
•
Toro Premium All Season Hydraulic Fluid (refer to
your Authorized Toro Dealer for more information)
•
If either of the above Toro fluids are not available,
you may use another Universal Tractor Hydraulic
Fluid (UTHF), but they must be only conventional,
petrolium-based products. The specifications must fall
within the listed range for all of the following material
properties and the fluid should meet the listed industry
standards. Check with your oil supplier to determine if
the oil meets these specifications.
Note: Toro will not assume responsibility for damage
caused by improper substitutions, so use only products
from reputable manufacturers who will stand behind their
recommendations.
Material Properties
Viscosity, ASTM D445
Viscosity index, ASTM D2270
Pour Point, ASTM D97
cSt at 40 degrees C: 55 to 62
cSt at 100 degrees C: 9.1 to
9.8
140 to 152
-35 to -46 degrees F (-37 to
-43 degrees C)
Industry Standards
API GL-4, AGCO Powerfluid 821 XL, Ford New Holland
FNHA-2-C-201.00, Kubota UDT, John Deere J20C, Vickers
35VQ25 and Volvo WB-101/BM.
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 2/3 oz (20 ml) bottles.
One bottle is sufficient for 4-6 gal (15-22 l) of hydraulic
oil. Order part no. 44-2500 from your Authorized Toro
Dealer.
1. Position the traction unit on a level surface.
2. Open the hood.
3. Install the cylinder lock, stop the engine, and remove
the key.
4. Allow the traction unit to cool completely.
5. Remove the hydraulic tank cap and dipstick (Figure 57).
Note: The filler cap is behind the front screen. If you
want to improve your access to it, remove the screen.
1. Filler neck
6. Place a large drain pain (capable of holding 15 US
gallons) under the drain plug on the front of the
traction unit (Figure 58).
43
Figure 57
2. Dip stick