Alamo HYDRO 15 - Manual (Page 79)

Section 5 - 5
HYDRO 15 (Service Manual) 10/06
© 2006 Alamo Industrial
10 FT - OPTIONAL HYD LEVEL LIFT AXLE - W/ STD WING LIFT / FOLD
Note: Hydraulic Axle Lift Option. This has two axle cylinders, one center and one wing. These cylinder
are different bore size, the center is 3-1/2" bore and RH wing 3-1/4" bore. The hydraulic hose's are routed
to largest bore then smallest bore cylinder. The hose routing must be this way to work properly. The
system has cylinders that have bypass grooves in the top end of the barrels to allow the hydraulic oil to
pass from one cylinder to the other. The return hose is connected to the return valves return hose, this
is recommended connection as this puts the return hose at hydraulic oil level and helps prevent air from
accumulating in the cylinders during use. If optional Valve is not used and cylinders are connected direct
to tractor, the return hose should be connected below hydraulic oil to keep hose full of oil. Tractor
connections must have the detent positions.
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Large Bore Cyl
(Center Axle)
Medium Bore Cyl
(RH Wing Axle)
Wing Lift & Fold
Cyl. RH Wing
Valve Outlet Return
to Tractor Resevoir Valve Inlet Pressure from
Tractor Hyd System
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Cyl. Vent
Option Remote Control Valve Shown
WING LIFT/FOLD - OPTIONAL AXLE LEVEL LIFT CYL’S