Flush Hydraulic System
IMPORTANT: Flush the hydraulic system any time
there is a severe component failure or the system is
contaminated (oil appears milky, black or contains
metal particles).
9. Turn ignition key switch and engage starter for ten
(10) seconds to prime hydraulic pumps. Repeat this
step again.
10.Connect
electrical connector to engine run solenoid.
1.
decks to the ground, stop engine and apply parking
brake. Remove key from the ignition switch.
Park machine on a level surface. Lower cutting
11.
Start engine and let it idle at low speed (1450 RPM)
for a minimum of two (2) minutes. Increase engine
speed to high idle (2870 RPM) for minimum of one (1)
minute under no load.
CAUTION
12.Raise
and lower cutting decks several times. Turn
steering wheel fully left and right several times.
Operate all hydraulic controls to relieve system
pressure and avoid injury from pressurized hy-
draulic oil.
13.Shut
Check oil level in hydraulic reservoir and add correct
amount of oil if necessary.
off engine and check for hydraulic oil leaks.
IMPORTANT: Make sure to clean around any hy-
draulic connections that will be disconnected for
draining.
14.Operate
erating conditions.
machine for two (2) hours under normal op-
15.Check
shows any signs of contamination, repeat steps 1
through 14 again until oil is clean.
condition of hydraulic oil. If the new fluid
2.
3.
Drain hydraulic reservoir.
Drain hydraulic system. Drain all hoses, tubes and
components while the system is warm.
16.Assume
normal operation and follow recommended
maintenance intervals.
4.
5.
Change and replace both hydraulic oil filters.
Inspect and clean hydraulic reservoir (see Hydraulic
Reservoir Inspection in this section).
6.
that were disconnected while draining system.
Connect all hydraulic hoses, lines and components
NOTE: Useonly hydraulic fluids specifiedintheOpera-
tor’s Manual. Other fluids may cause system damage.
7.
8.
Fill hydraulic reservoir with new hydraulic fluid.
Disconnect electrical connector from engine run so-
lenoid.
Hydraulic System
Page 4 -- 62
Groundsmaster 4000--D
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
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| Document Type | Catalog |
| Language | English |
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