Servicing The Transmission - Toro 25450W Operator's Manual

Figure 93
1. Breather fitting
2. Remove the breathers from the front axle and rear
axles (Figure 92 and
3. Clean the breathers with a cleaning solvent.
4. Use compressed air to dry the breathers.
Important: Wear face protection when using
compressed air.
5. Install the breathers into the front and rear
92 and Figure 93).

Servicing the Transmission

Use Toro Premium All-season Hydraulic Fluid (available
in 5-gallon pails or 55-gallon drums. See the parts catalog or
an Authorized Toro Service Dealer for part numbers).
If Toro hydraulic fluid is not available, you may use an
equivalent hydraulic fluid such as Mobilfluid 424, provided
that it meets all the following material properties and
industry specifications. Do not use a synthetic hydraulic
fluid. Consult with your lubricant distributor to identify a
satisfactory product.
High Viscosity Index/Low Pour Point
Anti-wear Hydraulic Fluid, ISO VG 46
Material Properties:
Viscosity, ASTM D445
Viscosity Index ASTM
D2270
Pour Point, ASTM D97
FZG, Fail stage
Water content (new fluid)
Industry Specifications:
2. Rear axle
Figure 93).
axles(Figure
St @ 40°C (104°F): 44 to 48
St @ 100°C (212°F): 7.9 to 8.5
140 to 160
-37°C (-34°F) to -45°C (-49°F)
11 or better
500 ppm (maximum)
Vickers I-286-S (Quality Level),
Vickers M-2950-S (Quality
Level), Denison HF-0
Checking the Oil Level in the
Transmission
Service Interval: Every 100 hours
Important: If you operate the machine while the level of
the transmission oil is below the recommended level, you
may damage the transmission and the parking brake.
1. Park the machine on a level surface.
2. Start the engine and run it for 10 minutes.
3. Stop the engine and remove the ignition key.
4. After 5 minutes, check the transmission oil level in the
sight gauge (Figure
Note: The oil level should cover 1/2 to 3/4 of the
sight-gauge window.
1. Sight gauge
5. If the oil level is low, add oil; refer to
Transmission with Oil (page
6. Repeat steps 2 through
to 3/4 of the sight-gauge window
Note: As you add oil to the transmission, perform
steps 2 through
62
94).
Figure 94
Filling the
63).
5 until the oil level covers 1/2
(Figure
4 to determine the corrected oil level.
94).