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Take the unit frame that has the hydraulic pump and place it on
the drivers side of the pick up truck bed with the arm end point-
ing forward toward the truck cab. Take the remaining unit
frame and place it on the truck bed on the passenger side. Be
careful not to set the unit on the hydraulic pump hoses.
Lift the unit Arm Frame with the hydraulic pump upright with
the arm on top. Lean the arm end slightly forward and move
the top end up under the Side Filler. Push the bottom of the
Arm Frame in on top of the plastic Mounting Shim and flush
with the wheel well. It will be necessary to lift up the Side
Filler which should have been attached to the truck bed wall
only loosely.
Use the 2 x 4 as a brace to hold the two unit frames
in position until they are secured to the truck bed.
Once the Brace has been placed between the two Arm Frames
and the unit Arm Frames are pulled back to the tailgate posts
align the holes on top and use two of the 1/4” screws and washers
and loosely attach the Arm Frame to the Side Filler Bracket to
hold the frame into position. Repeat these steps on the passenger
side.
Once the unit Arm Frame is in position under the Side Filler,
pull it completely back towards the tail gate. Make sure that
both frames are equal distance from the rear of the truck bed.