6
ELECTRICAL
CIRCUIT DIAGRAM
BE SURE ALL POWER IS OFF BEFORE ATTEMPTING TO WORK ON THIS EQUIPMENT!
CAUTION: SERVICE WORK SHOULD BE PERFORMED ONLY BY TRAINED & QUALIFIED PERSONNEL
MECHANICAL EDGE-O-DOCK ADJUSTING INSTRUCTIONS
1.)
Stand on the ground in front of the leveler. Raise the leveler to the vertical position. Place the forks of your
lift truck under
lip to hold lip out at nearly level position. Never work directly under
lift
truck forks.
2.)
To adjust the force
that counterbalances the leveler
,
use the pipe lever
("handle" no,.16 on p. 9)
supplied with the dockleveler and a 3/4" open
end
wrench or socket. Place the open end of the pipe over the
stem
on the
spring winding tube
. We recommend
that
one person rotate the
winding
tube
with the pipe to the desired strength
and
a second person tighten the
3/4" bolts onto the milled flats
(of the interior bar)
.
3.)
When the required lifting torsion is
achiev
ed, return to leveler to
normal operating position. Check the adjustments
.
I
f
the leveler still does
not
raise
properly, repeat the previous steps to either increase or
decrease spring lifting torsion. If the leveler bounc
es
or float
s
when the
lip is extended there is too much lifting torsion.
Reverse the process
described in step 2 to reduce spring tension
.
NOTE:
This is an excellent time to lubricate the grease zerks on the hinges.
A standard grease gun will service
these. This must be done regularly (at
least once per month) for ease of operation and maintenance.
1
P
H
A
S
E
3
P
H
A
S
E
Torsion
spring
Locking
bolt
Decrease
Increase
Milled
flats
Interior bar
Mounting
plate
Spring
winding tube
4.)
In order for the ramp plate to
automatically
remain
under s
p
ring
te
n
sion in the vertical position
(
when the
deck plate
is raised
)
, it might
be necesary to adjust the position of the cylinder bracket.
Install a
3/4in. UNC x 2in. bolt through the opening at the base of the bracket
(see FIGS. 2A & 2B)
. Wind the bolt through the nut welded onto the
back side of the bracket. As the end of the bolt presses against the
loading dock wall, the bracket position
changes. After installing the
bolt, raise the leveler. If the
ramp plate still does not
snap to a vertical
position, lower the leveler and
turn the bolt farther.
FIG. 1
FIG. 2A
FIG. 2B
Install b
olt
through
hole
in cylinder
bracket
Stem
