Page 7
November, 2003
400 Operator And
455 D Control Panel Installation Manual
M
ANUAL
R
ELEASE
M
ECHANISM
For installation of the locking cap cover see page 20. To
access the keyhole, slide the key-hole cover in the
direction of the arrow (see Figure 3). Insert the key and
turn it counterclockwise one full turn to disengage the
operator’s hydraulic system. You can now move the gate
leaf slowly by hand to open or close the gate.
Operating the gate leaf by hand is necessary during
installation and is useful during power failures.
You re-engage the hydraulic system by turning the key
clockwise one full turn. Remove the key and slide the
cover closed.
I
NSTALLING
THE
O
PERATOR
Installing the 400 operator consists of the following
steps:
1. Attach the rear mounting bracket
2. Attach the mounting hardware
3. Attach the front mounting bracket
4. Attach the operator to the gate
5. Adjust
the
operator
pressure
A
TTACH
THE
R
EAR
M
OUNTING
B
RACKET
Attach the rear mounting bracket according to the
dimensions in Figure 4.
WARNING!
You must achieve the A and B
dimensions, as specified in Figure 4.
Modification of the rear bracket may be
necessary to achieve these dimensions (I.e.,
cutting or extending the bracket provided)
If you have a steel gate post, weld the rear bracket
directly to it. If the gate post is made of any other
material, attach the optional mounting plate, with lag
bolts or anchors, and weld the bracket to it.
For an outward swing gate refer to Figure 5.
A
TTACH
THE
M
OUNTING
H
ARDWARE
Figure 2. Positive Stops
Figure 3. After sliding the cover open on the
Model 400, insert and turn the key
counterclockwise one full turn to release the
hydraulic system
