20K 2-Post Lift
Installation, Operation and Maintenance
Page 11
Rev. 11/10/2021
EAZ0080V85A
L
OCK
R
ELEASE
48) Assemble the fittings to the air valve,
Fig. 16
, with
the barbed fitting (3/8” hose barb x 1/8NPT) in port
marked “1”, the elbow (1/8” push-lock x 1/8NPT)
in port “2”, and nothing in the center port “3”
(exhaust).
Note: Barbed fitting in port marked
“1” may be substituted with 1/8” NPT fitting
suitable for the chosen compressed air supply
method.
49) Attach the valve to the Power Unit Bracket using
two #8-32 x 1 1/4” Lg. Pan Head Screws.
50) Cut a piece of the 1/8” O.D. air line 9" long and
use it to connect the bottom of the Tee fitting to
the elbow,
Fig. 16
.
Fig. 16 – Cable Assembly
51) Cut to fit a piece of the 1/8” O.D. air line and use
it to connect from the lock release air cylinder to
the center of the push-lock tee fitting on the Power
Column,
Fig 16
.
52) Connect the rest of the 1/8” air line to the top of
the tee and run it along side the hydraulic hose up
the column and across the overhead attaching it
to the hydraulic hose with wire ties (
Fig 17
).
53) At the Idler side feed the air line thru the lowest
large opening in the column extension and down
the column.
54) Secure the air line to the Idler Column using black
wire ties through the double holes in the middle of
the column. Place the head of the wire tires inside
the column. Cut the air line to length and attach it
to the idler side lock release air cylinder (
Fig. 17
).
Fig. 17 – Lock Release
55) Connect the air valve to the shop’s compressed
air source, (reference page 3 for Air
Requirements), and test the function of the lock
release system. Each Column Lock should move
freely. When the Air Cylinder is fully extended, the
Column Lock should rest firmly against the back
of the column.
56) Remove the two nuts securing the right side of the
power unit, install the valve cover with these nuts,
and secure the hose to the cover with black wire
ties,
Fig. 18
.
Fig. 18 – Cable Assembly
57) Assemble the palm button to the valve.
58) Install the Lock Release Covers on the Power
and Idler Columns.
A
RM
I
NSTALLATION
WIRE
TIE
WITH
HEAD
INSIDE
COLUMN
1
8
" AIR
LINE
UNION
TEE
1/8" AIR
LINE
WIRE TIE
WIRE TIE
WIRE
TIE
WITH
HEAD
INSIDE
COLUMN
WIRE
TIE
WITH
HEAD
INSIDE
COLUMN
1
8
" AIR
LINE
UNION
TEE
1/8" AIR
LINE
WIRE TIE
WIRE TIE
WIRE
TIE
WITH
HEAD
INSIDE
COLUMN
WIRE
TIE
WITH
HEAD
INSIDE
COLUMN
1
8
" AIR
LINE
UNION
TEE
1/8" AIR
LINE
WIRE TIE
WIRE TIE
WIRE
TIE
WITH
HEAD
INSIDE
COLUMN
WIRE
TIE
WITH
HEAD
INSIDE
COLUMN
1
8
" AIR
LINE
UNION
TEE
1/8" AIR
LINE
WIRE TIE
WIRE TIE
WIRE
TIE
WITH
HEAD
INSIDE
COLUMN
WIRE
TIE
WITH
HEAD
INSIDE
COLUMN
1
8
" AIR
LINE
UNION
TEE
1/8" AIR
LINE
WIRE TIE
WIRE TIE
WIRE
TIE
WITH
HEAD
INSIDE
COLUMN
