Checking The High Flow Hydraulic-Fluid Level (Tc Models Only); Checking The Front-Differential-Oil Level (4-Wheel Drive Models Only) - Toro 07383 Operator's Manual

Checking the High Flow
Hydraulic-fluid Level (TC
models only)
Service Interval: Before each use or daily (check the level of
hydraulic fluid before the engine is first
started, and daily thereafter)
Hydraulic-fluid type: Toro Premium All Season
Hydraulic Fluid (Available in 5 gallon pails or 55 gallon
drums. See parts catalog or Toro distributor for part
numbers.)
Alternate fluids: If the Toro fluid is not available, another
conventional petroleum–based fluid may be used provided
it meets the following material properties and industry
specifications. Consult with your lubricant distributor to
identify a satisfactory product.
Note: Toro will not assume responsibility for damage
caused by improper substitutions, so use only products
from reputable manufacturers who will stand behind their
recommendation.
High Viscosity Index/Low Pour Point Antiwear
Hydraulic Fluid, ISO VG 46
Material Properties:
•
Viscosity—ASTM D445 cSt @ 40ºC: 44 to 48/cSt @
100ºC: 7.9 to 8.5
•
Viscosity Index, ASTM D2270—140 to 152
•
Pour Point, ASTM D97— -35ºF to -46ºF
•
FZG, Fail stage—11 or better
•
Water content (new fluid)—500 ppm (maximum)
Industry Specifications:
Vickers I-286-S, Vickers M-2950-S, Denison HF-0, Vickers
35 VQ 25 (Eaton ATS373-C)
1. Clean the area around the filler neck and the cap of the
hydraulic tank (Figure 20).
2. Remove the cap from the filler neck.
1. Cap
3. Remove the dipstick (Figure 20) from the filler neck
and wipe it with a clean rag.
Figure 20
4. Insert the dipstick into the filler neck, then remove it
and check the fluid level.
Note: The fluid level should be between the 2 marks
on the dipstick.
5. If the level is low, add the appropriate fluid to raise
the level to the upper mark; refer to Changing the
High-flow Hydraulic fluid and Filter (TC models only)
(page 55).
6. Install the dipstick and cap onto the filler neck.
7. Start the engine and turn on the attachment.
Note: Let them run for about 2 minutes to purge air
from the system.
Important: The machine must be running before
starting the high-flow hydraulics.
8. Stop the engine and attachment and check for leaks.
WARNING
Hydraulic fluid escaping under pressure can
penetrate skin and cause injury.
• Make sure 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
pin hole 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.
• Seek immediate medical attention if fluid
is injected into your skin.
Checking the
Front-differential-oil Level
(4-wheel drive models only)
Service Interval: Every 100 hours/Monthly (whichever
comes first)
Differential-oil type: Mobil 424 hydraulic oil
1. Position the machine on a level surface.
2. Clean the area around the fill/check plug on side of
the differential (Figure 21).
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