Hydraulic System Maintenance; Hydraulic Fluid Specifications; Checking The Hydraulic-Fluid Level - Toro STX-26 Operator's Manual

Hydraulic System
Maintenance
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; otherwise, gangrene may
result.
• 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; never use your hands.
Hydraulic Fluid
Specifications
Every 1,500 hours/Every 2 years (whichever
comes first)—Replace all moving hydraulic
hoses.
Hydraulic Tank Capacity: 23 L (6 US gallons)
Use only 1 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 the following material properties and the fluid
should meet the listed industry standards. Check
with your hydraulic fluid supplier to determine if the
fluid 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
cSt at 40°C: 55 to 62
cSt at 100°C: 9.1 to 9.8
140 to 152
Pour Point, ASTM D97
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 fluid is available in 20
ml (0.67 fl 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
Dealer.
Checking the
Hydraulic-Fluid Level
Service Interval: Every 25 hours
Refer to Hydraulic Fluid Specifications (page
1. Park the machine on a level surface, engage
the parking brake (if applicable), and lower the
hydraulic lift.
2. Shut off the engine and remove the key.
3. Look into the glass bubble on the right side of
the machine. If you cannot see hydraulic fluid in
the bubble, continue this procedure to add fluid.
1. Hydraulic-fluid check bubble
4. Remove the cover plate; refer to
Cover Plate (page
5. Clean the area around the filler neck of the
hydraulic tank and remove the cap and filter
from the filler neck using a socket
37
-37 to -43°C (-35 to -46°F)
Figure 53
Removing the
21).
(Figure
37).
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54).