Servicing The Hydraulic System - Toro Groundsmaster 3280-D Operator's Manual

Material Properties:
Viscosity, ASTM D445
Viscosity Index ASTM
D2270
Pour Point, ASTM D97
Industry Specifications:
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
Note:
Many hydraulic fluids are almost colorless,
making it difficult to spot leaks. A red dye additive
for the hydraulic fluid is available in 20 ml (2/3 fl oz)
bottles. A bottle is sufficient for 15 to 22 L (4 to 6 US
gallons) of hydraulic fluid. Order Part No. 44-2500
from your authorized Toro distributor.
Servicing the Hydraulic
System
Preparing to Service the Hydraulic
System
1. Move machine to a level surface and engage
the parking brake.
2. Place all controls in the
start the engine.
3. Run the engine at lowest possible engine speed
to purge the system of air.
Important:
Do not run the PTO.
4. Cycle steering wheel several times fully to the
left and right, and align the steering wheels
straight forward.
cSt @ 40°C 55 to 62
cSt @ 100°C 9.1 to 9.8
140 to 152
-35°F to -46°F
position and
NEUTRAL
Checking the Hydraulic System
and Fluid Level
Service Interval: Before each use or daily
Note:
The transaxle housing acts as the reservoir
for the hydraulic system.
1. Raise the deck to extend the deck-lift cylinders,
shut off the engine, and remove the key from
the key switch.
2. Loosen dipstick cap
dipstick from transaxle filler tube and wipe the
dipstick with a clean rag.
3. Insert the dipstick into the fill tube and thread
dipstick cap onto the tube.
4. Remove the dipstick and check the fluid level
(Figure 79).
5. If the fluid level is below the lower mark of the
dipstick, add the specified hydraulic fluid into the
fill tube (Figure
the upper and lower marks when checked with
the dipstick (Figure
Important:
Do not fill the transaxle housing
with hydraulic fluid above the upper mark of
the dipstick.
64
(Figure 78) and remove the
Figure 78
Figure 79
80) until fluid level rises between
79).
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