Hydraulic System Start--Up - Toro Greensmaster TriFlex 3300 Service Manual

Hydraulic System Start- -up
NOTE: When initially starting the hydraulic system with
new or rebuilt components such as motors, pumps or lift
cylinders, it is important that this start--up procedure be
used. This procedure reduces the chance of damaging
the system or its components from not purging the sys-
tem of air.
1. After the hydraulic system components have been
properly installed and if the piston pump was rebuilt or
replaced, make sure piston pump housing is at least half
full of clean hydraulic oil.
2. Make sure all hydraulic connections and lines are se-
cured tightly.
3. Make sure hydraulic reservoir is full. Add correct oil
if necessary. Drain, flush and refill hydraulic system res-
ervoir and change oil filter if component failure was se-
vere or system is contaminated.
4. After repairs, check control linkage for proper adjust-
ment, binding or broken parts.
5. Make sure the functional control lever is in the neutral
(N) position.
6. Disconnect appropriate electrical component(s) to
prevent the engine from starting:
A. On machines with gasoline engine, disconnect
both spark plug wires from spark plugs.
B. On machines with diesel engine, disconnect wire
harness electrical connector from the engine fuel
stop solenoid.
7. Turn ignition key switch and engage starter for ten
(10) seconds to prime pumps. Return ignition switch to
off and wait one (1) minute to allow starter to cool. Re-
peat step a second time.
Greensmaster 3300/3400
8. Reconnect engine electrical component(s) that were
disabled in step 6 above.
9. With the functional control lever in the neutral (N)
position, start engine and run at low idle speed. The
charge pump should pick up oil and fill the hydraulic sys-
tem. If there is no indication of fill in thirty (30) seconds,
stop the engine and determine the cause.
Be careful when operating the cutting unit reels.
Contact with the reel or other moving parts can
result in personal injury.
10.After the hydraulic system starts to show signs of fill,
accomplish the following:
A. If a reel motor was replaced or rebuilt, run the cut-
ting units at the minimum speed setting (under no
load) for ten (10) minutes in both directions.
B. If the gear pump was replaced or rebuilt, run the
cutting units at the minimum speed setting (under no
load) for ten (10) minutes.
C. If the piston pump or a wheel motor was replaced
or rebuilt, run the traction unit so the wheels slowly
turn for ten (10) minutes.
11. Operate the traction unit and cutting units by gradu-
ally increasing their work load to full over a ten (10) min-
ute period.
12.Stop the machine. Check reservoir and fill if neces-
sary. Check hydraulic components for leaks and tighten
any loose connections.
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CAUTION
Hydraulic System