7. Trace down the retract line to the main control valve
from the lift and winch cylinders. Mark the lines so
they do not get crossed when you reconnect them to
the control valve. Disconnect the retract lines at the
main control valve. Place the lines in an appropriate-
sized container or add enough hose to the retract lines
so that they will extend into a 55 gallon drum.
8. Fill the oil tank with MV36 or equivalent type hydraulic
oil so that it just comes to the top of the sight gauge
mounted on the oil tank.
9. Start up the truck and engage the PTO. With the truck
idling and the PTO running, activate the main control
valve lever to “extend” or “on” for the winch cylinder.
This will force the oil out of the retract hoses that are
disconnected and flush the old oil out. When the winch
cylinder is completely extended, shut the truck off and
reconnect the retract hose for the winch cylinder back on
the main control valve. Start the truck again, engage the
PTO and retract the winch cylinder completely. Check the oil
level in the tank and fill to the top of the sight gauge again.
10. Similar to Step 9, activate the main control valve lever
to “extend” or “lift” for the lift cylinders with the truck
idling and the PTO running.
This will force the oil out of the retract hoses that are
disconnected and flush the old oil out. When the lift
cylinders are completely extended, shut the truck off and
reconnect the retract hose for the lift cylinders back on the
main control valve. Start the truck again, engage the PTO
and retract the lift cylinders completely. Check the oil level
in the tank and fill to the top of the sight gauge again.
Questions?
www.galbreathproducts.com
1-800-285-0666
21
Hydraulic oil may come out at high velocity, which
could lead to injuries.
CAUTION
Conserve resources and recycle
hydraulic oil. Always dispose
of oil properly. If you have any
questions pertaining to the
procedures involved, please
contact the Customer
Service Department
at Galbreath at
1-800-285-0666.
THINK GREEN
