Warren Elevating 5
th
Wheel
29
Figure 12. Hydraulic layout for FW-45 & FW-25HL6
Connect the hydraulic hoses from the 5th wheel to the hydraulic pump. BE SURE TO HOOK UP
THE HOSES EXACTLY AS SHOWN.
HAND TIGHTEN FILTER AND CHECK THE OIL LEVEL AFTER RUNNING THE PUMP
THE FIRST TIME.
NOTE: Each tank is supplied with a magnetic plug located in one port. The use of this plug will
help extend the service life of the unit.
Prepare Tractor For Service
If lifting hooks are interfering or causing other issues, use an acetylene torch to remove them
Re-install all tractor components that were removed during installation. Hook up fuel lines and
replace batteries and battery cables.
Fill Tank and Cylinder(s)
We recommend using hydraulic oil with minimum specifications stated earlier in this manual and
suited to your operating conditions and temperatures. To fill the cylinder(s), start with the unit in
fully lowered position. Fill the cylinder(s) full. Put the filler cap(s) with vent back into place. Fill
tank with oil. Start the tractor, put the PTO in gear and move the pump control to the ‘raise”
position. Slowly raise the unit to its full height. Take the PTO out of gear. Lower the fifth wheel
down by backing under a trailer with the pump control in the “lower” position. If you do not have
a trailer nearby, have the driver put the pump into the “lower” position while a mechanic uses the
pry bar to help lower the fifth wheel. Check oil level in tank and add if necessary.
