Hydraulic System Maintenance; Hydraulic System Safety; Checking The Hydraulic Lines And Hoses; Checking The Hydraulic Fluid - Toro LT-F3000 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.
Checking the Hydraulic
Lines and Hoses
Service Interval: Before each use or daily
Check the hydraulic lines and hoses for leaks, kinked
lines, loose mounting supports, wear, loose fittings,
weather deterioration, and chemical deterioration.
Make all necessary repairs before operating.
Checking the Hydraulic
Fluid
Service Interval: Before each use or daily
The reservoir is filled at the factory with approximately
32 L (8.5 US gallons) of high-quality hydraulic fluid.
The best time to check the hydraulic fluid is when
it is cold.
The recommended replacement fluid is:
Toro Premium All Season Hydraulic Fluid:
Available in 19 L (5 US gallon) containers or 208 L
(55 US gallon) drums—contact your authorized Toro
distributor for part numbers.
Alternative fluids: If the Toro fluid is not available,
other fluids may be used provided that they meet
all of the following material properties and industry
specifications. Check with your oil supplier to identify
a satisfactory product.
Note:
Toro does not assume responsibility for
damage caused by improper substitutions, so use
only products from reputable manufacturers who
stand behind their recommendation.
High Viscosity Index/Low Pour Point Antiwear Hydraulic
Fluid, ISO VG 46 Multigrade
Material Properties:
Viscosity, ASTM D445
Viscosity index, ASTM
D2270
Pour point, ASTM D97
FZG, fail stage
Water content (new fluid)
Industry Specifications:
Vickers I-286-S, Vickers M-2950-S, Denison HF-0,
Vickers 35 VQ 25 (Eaton ATS373-C)
The proper hydraulic fluids must be specified for
mobile machinery (as opposed to industrial plant
usage), multiweight-type, with ZnDTP or ZDDP
antiwear additive package (not an ashless-type fluid).
Important:
Many hydraulic fluids are almost
colorless, making it difficult to spot leaks. A
red dye additive for the hydraulic system oil 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 44-2500 from your
authorized Toro distributor.
Synthetic, Biodegradable Hydraulic Fluid:
Available in 19 L (5 US gallon) containers or 208
L (55 US gallon) drums—contact your authorized
Toro distributor for part numbers.
This high-quality, synthetic, biodegradable fluid has
been tested and found compatible for this Toro
model. Other brands of synthetic fluid may have
seal compatibility problems and Toro cannot assume
responsibility for unauthorized substitutions.
Note:
This synthetic fluid is not compatible with the
Toro Biodegradable Fluid previously sold. See your
Toro Distributor for more information.
Alternative fluids:
•
Mobil EAL Envirosyn H 46 (US)
•
Mobil EAL Hydraulic Oil 46 (international)
1. Park the machine on a level surface, lower the
cutting units, engage the parking brake, shut off
the engine, and remove the key.
2. Check the sight-level gauge on the side of the
tank.
Note:
The level needs to be at the upper mark.
3. If additional hydraulic fluid is needed, clean the
area around the filler neck and the cap of the
hydraulic tank
47
cSt @ 40°C (104°F)
44 to 48
cSt @ 100°C (212°F)
7.9 to 9.1
140 or higher (high
viscosity index indicates a
multiweight fluid)
-36.7°C to -45°C (-34°F to
-49°F)
11 or better
500 ppm (maximum)
(Figure 60) and remove the cap.