Flush Hydraulic System
IMPORTANT: Flush the hydraulic system any time
there is a severe component failure or if the system
is contaminated (oil appears milky, black, or con-
tains metal particles).
6. Reconnect all hydraulic hoses, lines, and compo-
nents that were disconnected while draining system.
NOTE: Use only hydraulic fluids specified in Check Hy-
draulic System Fluid. Other fluids may cause system
damage. If changing to biodegradable fluid, use Toro
Biodegradable Hydraulic Fluid for this step.
IMPORTANT: Flush hydraulic system when chang-
Ing from petroleum base hydraulic fluid to a biode-
gradable fluid such as Toro Biodegradable
Hydraulic Fluid. Operate machine under normal op-
erating conditions for at least four (4) hours before
draining.
7.
Fill hydraulic tank with new hydraulic fluid (see
Change Hydraulic Fluid).
8.
Disconnect fuel stop solenoid lead to prevent the en-
gine from starting. Make sure traction pedal and the lift
control lever are in the neutral position.
IMPORTANT: If a component failure occurred in the
traction circuit, refer to Traction Circuit (Closed
Loop) Component Failure in the General Informa-
tion section for information regarding the impor-
tance of removing contamination from the traction
circuit.
9.
(10)
Turn ignition key switch and engage starter for ten
seconds toprime thetraction andgearpumps.Wait
fifteen(15)secondstoallowthestartermotortocooland
then repeat cranking procedure again.
1.
stop engine, and engage parking brake. Remove key
from the ignition switch.
Park machineonalevelsurface.Lower cuttingunits,
10.Connect
electrical connector on fuel stop solenoid.
11.
Start engine and let it idle at low speed (1750 + 50
RPM) for a minimum of 2 minutes. Increase engine
speed to high idle (3050 + 50 RPM) for a minimum of 1
minute under no load.
WARNING
12.Raise
steering wheel fully left and right several times.
and lower cutting units several times. Turn
Before disconnecting or performing any work
on the hydraulic system, all pressure in the
system must be relieved. See Relieving Hy-
draulic System Pressure in the General Infor-
mation section.
13.Shut
off engine and check for hydraulic oil leaks.
Check oil level in hydraulic tank and add correct amount
of oil if necessary.
IMPORTANT: Make sure to clean around any hy-
draulic connections that will be disassembled.
14.Operate
ating conditions.
the machine for 2 hours under normal oper-
2.
3.
Drain hydraulic tank (see Change Hydraulic Fluid).
Drain hydraulic system. Drain all hoses, tubes, and
15.Check
condition of hydraulic oil. If the new fluid
shows any signs of contamination, repeat steps 1
through 14 again until oil is clean. If changing to biode-
gradable fluid, repeat steps 1 through 14 again at least
once and until the oil is clean.
components while the system is warm.
4.
Change and replace oil filter (see Replace Hydraulic
Oil Filter).
16.Assume
normal operation and follow recommended
maintenance intervals.
5.
Inspect and clean hydraulic oil tank (see Hydraulic
Tank Inspection).
Hydraulic System (Rev. D)
Page 4 -- 60 Rev. F
Groundsmaster 3500--D
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 3500 D |
| Download File |
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| Document Type | Catalog |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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