Install the Drive Unit
To install the drive unit, first make sure the four
leveling bolts on the base of the unit do not protrude
from the bottom of the unit. Then place the unit on the
foundation plate (see Figure 7).
Position the drive unit according to the following:
1. The side of the drive unit with the splined
shaft should be the side nearest the gate
post.
2. The longitudinal axis of the drive unit is
perpendicular to (at right angles to) the fully
closed gate leaf.
3. The center of the splined shaft is vertically
aligned with the center of the gate hinge axis
(use a plumb line).
Caution:
NEVER
weld the base plate of the
drive unit to the foundation plate. Weld only
the mounting C brackets to the foundation
plate.
When the position of the drive unit meets these
conditions, weld the C-shaped mounting brackets to
the foundation plate to hold the drive unit in position
(see Figure 7).
Splined shaft: This side
of the drive unit should be
nearest the gate post.
Drive unit
Foundation
plate
Mounting
C bracket
Longitudinal axis
of the drive unit
Figure 7. Welding the mounting C bracket to the foundation plate
Next you need to prepare the two L-shaped "box
halves" for installation. Note that the lip on each piece
should be on top so as to support the top cover. Make
the necessary holes for the two hydraulic lines that run
from the drive unit to the power unit.
Once you have made your access holes, you can weld
the box halves to the foundation plate and to one
another so as to enclose the drive unit on four sides. Be
sure to protect the drive unit during welding.
Connect the Hydraulic Lines
Caution:
It is important that the hydraulic
lines be kept clean of any debris.
The drive unit and power unit are connected by two
hydraulic lines, each with an outside diameter of 5/16
in. (0.8 cm), an inside diameter of 5/32 in. (0.4 cm),
and a 2,500 psi (170 bar) rating.
Caution
: After removing the nylon piping, do
not rotate the splined shaft while you are
connecting the hydraulic lines to avoid
squirting hydraulic fluid.
Remove the nylon piping connecting the two hydraulic
pipe fittings on the drive unit. Clean up any spilled
hydraulic fluid.
Be sure the hydraulic lines are free of any debris by
flushing them with a jet of compressed air. Then attach
one line to each fitting on the drive unit.
Next you attach the other end of the hydraulic lines to
the pipe fittings on the power unit (see Figure 8;
additional information can be found in the technical
drawing on page 29). Attaching the correct line to the
correct fitting is important. Make sure that the hose on
the end of the drive unit that is on the closing side of the
gate/fence line attaches to the hydraulic pipe fitting in
the power unit that is nearest the green bypass valve
