Hydraulic System Maintenance; Hydraulic System Safety; Hydraulic-Fluid Specifications; Checking The Hydraulic-Fluid Level - Toro TX 427 Operator's Manual

Hydraulic System
Maintenance

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.
Hydraulic-Fluid
Specifications
Hydraulic Tank Capacity: 45.4 L (12 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, petroleum-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 does 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°C: 55 to 62
cSt at 100°C: 9.1 to 9.8
140 to 152
-37 to -43°C (-35 to -46°F)
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
(2/3 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 Service
Dealer.
Checking the
Hydraulic-Fluid Level
Service Interval: Every 25 hours
Check the hydraulic-fluid level before the engine is
first started and after every 25 operating hours.
Refer to Hydraulic-Fluid Specifications (page 42)

hydraulic-fluid specifications.

Important:
Always use the correct hydraulic
fluid. Unspecified fluids will damage the hydraulic
system.
1. Remove any attachments.
2. Park the machine on a level surface, lower the
loader arms, and fully retract the tilt cylinder.
3. Shut off the engine, remove the key, and allow
the engine to cool.
4. Open the hood and remove the left side screen.
5. Clean the area around the filler neck of the
hydraulic tank
6. Remove the filler-neck cap and check the fluid
level on the dipstick
The fluid level should be between the marks on
the dipstick.
1. Filler-neck cap
42
(Figure 60).
(Figure 60).
Figure 60
2. Dipstick
for
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