Model DX77
Installation, Operation and Maintenance
Page
8
Rev 06/17/2020
DX77-IOM-A.doc
B
LEEDING
/S
YNCHRONIZATION
P
ROCEDURE
16) Fill the reservoir with 4 gallons of the proper oil,
see
A
CCEPTED
O
ILS
listed on page 4.
17) Turn power on and ensure the disconnect switch
is in the “ON” position and proceed with the
following steps. DO NOT skip any step.
A
. Ensure all 3 valves are closed,
Fig. 7
.
B
. Press
UP
until both pads stop moving.
*
Note 1
C
.
OPEN
all 3 valves.
D
. Press
UP
until both pads stop moving.
E
. Bleed air from each pad cylinder,
Fig. 8
.
F
. If pads lower into a lock position, press UP.
G
. Continue bleeding until oil begins to escape.
H
. Press UP until both pads stop moving.
I
.
CLOSE
all 3 valves .
J
. Press
LOCK RELEASE
&
DOWN
.
*
Notes 2,3
K
. Repeat entire procedure.
*
Note 4
Note 1
: If pads do not rise after pressing
UP
for 30
seconds, continue to step “C” of procedure.
Note 2
: If pads stop moving while lowering during the
bleeding process,
OPEN
all 3 valves and
continue lowering. Once both pads are
completely lowered,
CLOSE
all 3 valves and
repeat the entire bleeding procedure.
Note 3
: With pads completely lowered, add oil to fill
reservoir.
Note 4
: The bleeding procedure should be performed
at least 3 times and repeated until both pads
are synchronized thru the complete raising
and lowering of the pads and no air comes
out of either bleed screw.
Fig. 7 – Valves (Hoses not shown)
Fig. 8 – Bleed Screw
L
IFT
L
EVELING
/A
NCHORING
18) The anchor bolts must be installed at least 6”
from any crack, edge or expansion joint.
19) Use a concrete hammer drill with a 1/2 inch
carbide bit. Tip diameter should conform to ANSI
Standard B212.15-1994 (.520 to .530). Do not
use excessively worn bits or bits which have
been incorrectly sharpened. A core bit may be
necessary if an obstruction is encountered.
Never substitute with a shorter anchor.
20) Recheck the layout dimensions,
Fig. 1
. Raise the
lift and use the (4) holes in the base of each pad
as a template. Drill through the floor if possible.
21) Vacuum dust from the hole for proper holding
power.
22) Ensure the lift is level. Use the provided shims to
level the lift at anchor holes. DO NOT shim more
than 1/2" at any given point. Use a level no less
than 24” in length. Additional shims or grout
should be placed under base side channels
where the lower slide blocks travel and under
pivot blocks in the front to prevent bending of the
base as shown below. Grout should meet or
exceed minimum required properties of concrete.
Fig. 9 - Leveling
23) Assemble washer and nut to anchor with nut just
below impact section of bolt. Drive anchor into
hole until nut and washer contact base.
24) Tighten anchors and recheck level. Re-shim if
necessary. Torque to 40 foot pounds to set
anchors.
25)
DX77
S
URFACE
M
OUNT
– Per
Fig. 1
, layout the
drive over ramps with approx. 3/4" gap between
the platform and the ramp. Use the hammer drill
with 1/2" carbide bit and use the hole in the ends
of each ramp as a template. Torque anchors to
40 foot pounds to set.
26) Use the provided 20” sections of hose cover to
protect the hose and air line for the surface
mount application. If the console has been
located further away than the standard 60”,
additional hose cover sections may be needed.
27) Drill Ø1/4” holes using the hose covers as a
template and secure the covers to the floor with
the provided 1/4" drive anchors. Repeat the
process for the control console.
