Toro Greens Aerator, Service Manual

Page: 45 / 130

Hydraulic System Start–up
NOTE: When initially starting the hydraulic system with
new or rebuilt components (pump, lift cylinder or lift con-
trol valve) it is important that this start–up procedure be
used. This procedure reduces the chance of damaging
the hydraulic system or its components from not purging
the system of air.
1. Drain, flush and refill hydraulic reservoir if compo-
nent failure was severe or if system is contaminated.
2. After the hydraulic system components have been
properly installed, make sure hydraulic reservoir is full.
Add correct oil if necessary (see Operator’s Manual).
3. Make sure all hydraulic connections and lines are se-
cured tightly.
4. Disconnect and ground both spark plug wires to pre-
vent engine from starting.
5. Turn ignition key switch to start; engage starter for
ten (10) seconds to prime hydraulic pump. Repeat this
step again.
6. Reattach both spark plug wires.
7. Start engine and run at low idle. The hydraulic pump
should pick up oil and fill the hydraulic system. If there
is no indication of fill in 30 seconds, stop the engine and
determine the cause.
8. Raise and lower the coring head numerous times.
9. Stop the machine. Check hydraulic reservoir level
and fill if necessary. Check hydraulic components for
leaks and tighten any loose connections.
Greens Aerator Page 4 – 15 Hydraulic System
Hydraulic
System