Checking The Hydraulic Fluid Level - Toro 04384 Operator's Manual

CAUTION
If the engine has been running, the pressurized, hot
coolant can escape and cause burns.
• Do not open the radiator cap when the engine
is running.
• Use a rag when opening the radiator cap, and
open the cap slowly to allow steam to escape.
1. Park the machine on a level surface.
2. Check the coolant level (Figure 25). It should be
between the lines on the reserve tank when the engine
is cold.
Figure 25
1. Reserve tank
3. If the coolant is low, remove the reserve tank cap and
add a 50/50 mixture of water and permanent ethylene
glycol antifreeze. Do not overfill.
4. Install the reserve tank cap.
Checking the Hydraulic Fluid
Level
Service Interval: Before each use or daily
Recommended Hydraulic Fluid
The machines reservoir is filled at the factory with
approximately 20.8 l (5.5 gallons) of high quality hydraulic
fluid. Check the level of the hydraulic fluid before
the engine is first started and daily thereafter. The
recommended replacement fluid is as follows:
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, other fluids
may be used provided they meet all the following material
properties and industry specifications. We do not recommend
the use of synthetic fluid. 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.
Hydraulic Fluid Table—
Material Properties
Viscosity, ASTM D445
Viscosity index, ASTM D2270
Pour Point, ASTM D97
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.
Important: The ISO VG 46 Multigrade fluid has been
found to offer optimal performance in a wide range of
temperature conditions. For operation in consistently
high ambient temperatures, 18° C (65° F) to 49° C
(120° F), ISO VG 68 hydraulic fluid may offer improved
performance.
Premium Biodegradable Hydraulic Fluid-Mobil EAL
EnviroSyn 46H
Important: Mobil EAL EnviroSyn 46H 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 gallons) containers or 55 gallon
drums from your Mobil Distributor.
Note: 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 oz.) bottles. One bottle is
sufficient for 15–22 1 (4–6 gal) of hydraulic oil. Order part no.
44-2500 from your authorized Toro distributor. This red dye
is not recommended for use with biodegradable fluids.
Important: Regardless of hydraulic fluid type used, any
machine used for mowing fairways, verticutting or used
during ambient temperatures 18°C (65°F) to 49°C (120°F)
should have Oil Cooler Kit, Part No. 104–7701, installed.

Checking the Hydraulic Fluid Level

1. Position the machine on a level surface. Make sure the
machine has cooled down so the oil is cold.
2. Remove the cap from the reservoir and check the level
of fluid. The fluid should be up to the bottom of the
screen in the filler neck (Figure 26).
25
cSt at 40° C (104° F): 55 to 62
cSt at 110° C (230° F): 9.1 to
9.8
140 to 152
-37 to -43° C (-35 to -46° F)