Operator's Manual

19
damage caused by improper substitutions, so use only
products from reputable manufacturers who will stand
behind their recommendation.
Multigrade Hydraulic Fluid—ISO VG 46 Normal
Climate 32F (0C) to 110F (43C)
Mobil DTE 15M
Amoco Rykon Premium ISO 46
Chevron Rykon Premium Oil ISO 46
Conoco Hydroclear AW MV46
Exxon Univis N46
Pennzoil AWX MV46
Shell Tellus T 46
Texaco Rando HDZ 46
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, 65°F (18°C) to 120°F (49°C), ISO
VG 68 hydraulic fluid may offer improved performance.
High Operating Temperature Fluid—ISO VG 68
Mobil DTE 26
Amoco Rykon AW No. 68
Chevron Hydraulic Oil AW ISO 68
Conoco Hydroclear AW MV46 68
Exxon Nuto H 68
Pennzoil AW Hydraulic Oil 68
Shell Tellus 68
Texaco Rando HD 68
Biodegradable Hydraulic Fluid—Mobil 224H
Important Mobil EAL 224H is the only biodegradable
oil tested and approved by Toro. Contamination by
mineral–based hydraulic fluids will change the
biodegradability and toxicity of this oil. When changing
from standard fluid to the biodegradable type, be certain to
follow the approved flushing procedure published by
Mobil. Contact your Toro Distributor for details. The oil is
available in 5 gallon (19 l) containers from your Toro
Distributor, order part no. 100–7674.
Note: Use of this fluid requires installation of an Oil Cooler
Kit, Part No. 104–7701, to the traction unit. This
biodegradable fluid will break down quickly if the
temperature exceeds 180°F (82°C).
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 5
gallon (19 l) 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 2/3 oz. (20 ml) bottles. One bottle
is sufficient for 4–6 gal. (15–22 l) of hydraulic oil. Order
Part No. 44-2500 from your Authorized Toro Distributor.
This red dye is not recommended for use with
biodegradable fluids. Use food coloring.
Important Regardless of hydraulic fluid type used, any
traction unit used for mowing fairways, verticutting or used
during ambient temperatures 65°F (18°C) to 120°F (49°C)
should have Oil Cooler Kit, Part No. 104–7701, installed.
Filling the Hydraulic Tank
1. Position the machine on a level surface. Make sure the
machine has cooled down so the fluid 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 (Fig. 21).
3. If the fluid level is low, slowly fill the reservoir with the
appropriate hydraulic fluid until the level reaches the
bottom of the screen. Do not overfill.
Important To prevent system contamination, clean the
top of the hydraulic fluid containers before puncturing.
Ensure the pour spout and funnel are clean.
4. Install the reservoir cap. Wipe up any fluid that may
have spilled.
Important Check level of hydraulic fluid before engine
is first started and daily thereafter.
1
2
Figure 21
1. Hydraulic reservoir cap 2. Screen