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).
6. Reconnect all hydraulic hoses, lines, and compo-
nents that were disconnected while draining system.
NOTE: Useonly hydraulic fluids specifiedintheOpera-
tor’s Manual. Other fluids may cause system damage.
IMPORTANT: Flush hydraulic system when chang-
Ing from petroleum base hydraulic fluid to a biode-
gradable fluid such as Mobil EAL 224H. Operate
machine under normal operating conditions for at
least four (4) hours before draining.
7.
Operator’s Manual).
Fill hydraulic reservoir with new hydraulic fluid (see
8.
lenoid.
Disconnect electrical connector from engine run so-
1.
stop engine, and engage parking brake. Remove key
from the ignition switch.
Park machineonalevelsurface.Lower cuttingunits,
9.
conds to prime pump. Repeat this step again.
Turn ignition key switch; engage starter for 10 se-
10.Connect
electrical connector to engine run solenoid.
CAUTION
11.
Start engine and let it idle at low speed (1450 RPM)
for a minimum of 2 minutes. Increase engine speed to
high idle (2730 + 30 RPM) for minimum of 1 minute un-
der no load.
Operate all hydraulic controls to relieve system
pressure and avoid injury from pressurized hy-
draulic oil. Controls must be operated with the
ignition switch inOFF.Remove key from the igni-
tion switch.
12.Raise
steering wheel fully left and right several times.
and lower cutting units several times. Turn
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
conditions.
machinefor2hoursundernormaloperating
2.
Drain hydraulic reservoir (see Operator’s Manual).
3.
Drain hydraulic system. Drain all hoses, tubes, and
15.Check
condition of hydraulic oil. If the new fluid
components while the system is warm.
Change and replace both hydraulic oil filters (see
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.
Operator’s Manual).
5.
Reservoir Inspection).
Inspect and clean hydraulic reservoir (see Hydraulic
16.Assume
maintenance intervals.
normal operation and follow recommended
Hydraulic System (Rev. B)
Page 4 -- 50
Groundsmaster 4000--D
| Categories | Lawn Mower Manual, Toro Lawn Mower Manual |
|---|---|
| Tags | Toro Groundsmaster 4000 D |
| Download File |
|
| Document Type | Service Manual |
| Language | English |
| Document File Type | |
| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
| Copyright | Attribution Non-commercial |
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