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. Inspect and clean hydraulic oil tank (see Hydraulic
Tank Inspection in this section).
7.
Reconnect all hydraulic hoses, lines and compo-
nents that were disconnected todrain hydraulic system.
IMPORTANT: Flush hydraulic system when chang-
Ing from petroleum base hydraulic fluid to a biode-
gradable fluid such as Toro Biodegradable
Hydraulic Fluid.
NOTE: Use only hydraulic fluids specified in Traction
Unit Operator’s Manual. Other fluids may cause system
damage.
8.
tion Unit Operator’s Manual).
Fill hydraulic tank with new hydraulic fluid (see Trac-
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.
to prevent the engine from starting. Make sure traction
Disconnectwireharnessleadfromfuelstopsolenoid
pedal and lift control lever are in the neutral position.
10.Turn
ignition key switch and engage starter for ten
1.
perature by operating the machine for at least four (4)
hours.
Make sure hydraulic oil is at normal operating tem-
(10)
seconds toprime thetraction andgearpumps.Wait
fifteen(15)secondstoallowthestartermotortocooland
then repeat cranking procedure again.
2.
stop engine and engage parking brake. Remove key
from the ignition switch.
Park machineonalevelsurface.Lower cuttingunits,
11.
stop solenoid.
Connect wire harness electrical connector to fuel
12.Start
engine and let it idle at low speed (1400 + 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
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.Raise
steering wheel fully left and right several times.
and lower cutting units several times. Turn
14.Shut
off engine and check for hydraulic oil leaks.
Check oil level in hydraulic tank and add correct amount
ofoilifnecessary(seeTractionUnitOperator’s Manual).
IMPORTANT: Makesuretothoroughlycleanaround
allhydraulicconnections thatwillbedisassembled.
15.Operate
the machine for 2 hours under normal oper-
ating conditions.
3.
Drain hydraulic tank (see Traction Unit Operator’s
Manual).
16.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.
4.
components while the system is warm.
Drain hydraulic system. Drain all hoses, tubes and
5.
Change and replace hydraulic oil filter (see Traction
Unit Operator’s Manual).
17.Assume
normal operation and follow recommended
maintenance intervals.
Hydraulic System
Page 4 -- 52 Rev. B
Groundsmaster 3505--D
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|---|---|
| Tags | Toro Groundsmaster 3505 D |
| Download File |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
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| Publisher | toro.com |
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