Toro REELMASTER 2300-D, Service Manual, Page: 43 / 186

Checking the Hydraulic System Fluid
The hydraulic system is designed to operate on anti–
wear hydraulic fluid. The machine’s reservoir is filled at
the factory with approximately 3.3 gallons (12.5 liters) of
Mobil 424 hydraulic fluid. Check level of hydraulic
fluid before engine is first started and daily thereaf-
ter.
Group 1 Hydraulic Fluid (Recommended for ambi-
ent temperatures consistently below 100
_
F.):
ISO type 46/68 anti–wear hydraulic fluid
Mobil Mobil Fluid 424
Amoco Amoco 1000
International Harvester Hy–Tran
Texaco TDH
Shell Donax TD
Union OIl Hydraulic/Tractor Fluid
Chevron Tractor Hydraulic Fluid
BP Oil BP HYD TF
Boron OIl Eldoran UTH
Exxon Torque Fluid
Conoco Power–Tran 3
Kendall Hyken 052
Phillips HG Fluid
Note: The fluids within this group are interchange-
able.
Group 2 Hydraulic Fluid (Biodegradable):
ISO VG 32/46 anti–wear hydraulic fluid
Mobil EAL 224 H
IMPORTANT: Due to the nature of biodegradable
fluids, it is critical that the fluid be changed at the
recommended intervals or severe hydraulic compo-
nent damage may occur.
Note: The fluid in this group is not compatible with the
fluids in group 1.
IMPORTANT: These hydraulic fluids are specified
to allow optimal operation of the machine in a wide
range of temperatures encountered. The group 1
fluids are a multi–viscosity hydraulic fluids which
allows operation at lower temperatures without the
increased viscosity that is associated with straight
viscosity fluids.
Note: When changing from one type of hydraulic fluid
to the other, be certain to remove all the old fluid from the
system, because some brands of one type are not com-
pletely compatible with some brands of the other type of
hydraulic fluid.
Reelmaster 2300–D/2600–D
Page 4 – 5
1
2
Figure 6
1. Hydraulic reservoir cap 2. Sight gauge
IMPORTANT: Use only types of hydraulic fluids
specified. Other fluids could cause system damage.
Note: A red dye additive for the hydraulic system fluid
is available in 2/3 oz bottles. One bottle is sufficient for
4 to 6 gallons (15 to 22 liters) of hydraulic fluid. Order
Part No. 44–2500 from your Authorized Toro Distributor.
1. Position machine on a level surface. Make sure en-
gine is off and parking brake is set.
2. Check level of the fluid by viewing into the sight
gauge. If the fluid is cold, the level should be at the bot-
tom of the gauge. If the fluid is hot, the level should be
at the center of the gauge.
3. If fluid level is not at center of gauge, remove cap
from the hydraulic fluid reservoir and slowly fill reservoir
with Mobil 424 or equivalent hydraulic fluid until level
reaches center of sight gauge. DO NOT OVERFILL
IMPORTANT: To prevent system contamination,
clean top of hydraulic fluid containers before punc-
turing. Assure pour spout and funnel are clean.
4.Install reservoir cap. Wipe up any fluid that may have
spilled.
Hydraulic System
Hydraulic
System