Flush Hydraulic System
IMPORTANT: Flush the hydraulic system any time
there is a severe component failure or the system is
contaminated (oil appears milky or black or con-
tains metal particles).
8. Make sure traction pedal is in neutral and the P.T.O.
switch is off. Turn ignition key switch to start; engage
starter for ten (10) seconds to prime hydraulic pump.
Repeat this step again.
1.
(or implement), stop engine, engage parking brake and
remove key from ignition switch.
Park machine on a level surface. Lower cutting deck
9. Connect
3280--D) or spark plug wires (Groundsmaster 3320) to
allow engine to start.
fuel
stop
solenoid
(Groundsmaster
2.
Unit Operator’s Manual).
Drain hydraulic reservoir (front axle) (see Traction
10.Start engineandletitidleatlowspeedforaminimum
of two (2) minutes.
3.
Remove and discard hydraulic filter.
Clean area around hydraulic filter mounting area.
11.Increase engine speed to high idle for minimum of
one (1) minute under no load.
4.
and components while the system is warm. Flush hoses
and tubes to remove any contamination.
Drain entire hydraulic system. Drain all hoses, tubes
12.Rotate steering wheel in both directions several
times. Raise and lower cutting deck (or implement) sev-
eral times.
IMPORTANT: If a failure occurred in the traction cir-
cuit, traction circuit component disassembly and
thorough cleaning may be required to remove con-
taminates from the traction circuit. Because the
traction circuit is a closed loop, any contamination
will remain in the circuit and can cause additional
component damage unless it is removed.
13.Shut off engine and check for hydraulic oil leaks.
Check oillevelinhydraulic reservoir (frontaxle) andadd
correct oil if necessary.
14.Operate
the machine for two (2) hours under normal
operating conditions.
15.Check
conditionofhydraulicoil.Ifthefluidshowsany
signsofcontamination,repeatsteps1through14again.
5.
Make sure hydraulic filter mounting surface is clean.
Apply clean hydraulic oil to gasket on new filter. Screw
filter on until gasket contacts mounting plate, then tight-
en filter half a turn.
16.Resume
maintenance intervals.
normal operation and follow recommended
IMPORTANT: Use only hydraulic fluids specified in
Traction Unit Operator’s Manual. Other fluids could
cause system damage.
6.
Fill hydraulic reservoir (front axle) (see Traction Unit
Operator’s Manual).
7.
Perform the following to prevent engine from start-
ing:
A. Disconnect electrical connector to the fuel stop
solenoid on Groundsmaster 3280--D machines.
B. Disconnect and ground all engine spark plug
wires on Groundsmaster 3320 machines.
Groundsmaster 3280--D/3320
Page 5 -- 29
Hydraulic System
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Groundsmaster 3280 D, Toro Groundsmaster 3320 |
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|
| Document Type | Catalog |
| Language | English |
| Product Brand | Toro. Customer Service Representatives are available by phone:
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| Publisher | toro.com |
| Wikipedia's Page | Toro Company |
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