Hydraulic Fluid Specifications (continued)
Alternative hydraulic fluids: If Toro PX Extended Life Hydraulic Fluid is not available, you
may use another conventional, petroleum-based hydraulic fluid having specifications that
fall within the listed range for all the following material properties and that it meets industry
standards. Do not use synthetic fluid. Consult with your lubricant distributor to identify a
satisfactory product.
Note: Toro does not assume responsibility for damage caused by improper substitutions, so
use products only from reputable manufacturers who will stand behind their
recommendation.
High Viscosity Index/Low Pour Point Anti-wear Hydraulic Fluid, ISO VG
46
Material Properties:
Viscosity, ASTM D445 cSt @ 40°C (104°F) 44 to 48
Viscosity Index ASTM D2270 140 or higher
Pour Point, ASTM D97 -37°C to -45°C (-34°F to -49°F)
Industry Specifications: Eaton Vickers 694 (I-286-S, M-2950-S/
35VQ25 or M-2952-S)
Note: Many hydraulic fluids are almost colorless, making it difficult to spot leaks. A red dye
additive for the hydraulic fluid is available in 20 ml (0.67 fl oz) bottles. A 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 distributor.
IMPORTANT
Toro Premium Synthetic Biodegradable Hydraulic Fluid is the only synthetic
biodegradable fluid approved by Toro. This fluid is compatible with the elastomers
used in Toro hydraulic systems and is suitable for a wide-range of temperature
conditions. This fluid is compatible with conventional mineral oils, but for maximum
biodegradability and performance, the hydraulic system should be thoroughly
flushed of conventional fluid. The oil is available in 19 L (5 US gallon) pails or 208 L
(55 US gallon) drums from your authorized Toro distributor.
Hydraulic tank capacity
28.4 L (7.5 US gallons)
Checking the Hydraulic-Fluid Level
The reservoir is filled at the factory with high-quality hydraulic fluid.
1. Prepare the machine for maintenance.
2. Clean the area around the filler neck and cap of the hydraulic tank.
3466-702A Page 6–45 Maintenance: Hydraulic System Maintenance
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