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ALWAYS
check equipment
for
proper
operation
before
each
use, making
sure safety
devices
are
in
place
and
operating
properly.
DO NOT alter or
modify
any part of the
equipment
as this
may
cause
a malfunction
and
result
in serious
bodily
injury.
BEFORE CONNECTING
EJECTOR TO AIR LINE
Airline
lubrication
is necessary
for the
proper
performance
and
life
of this
ejector.
Be sure that the proper
airline
filter, lubricator
and regulator
can supply
the volume
of air necessary
to operate
the ejector
at the speed
required.
OPERATING
PRECAUTIONS
Use
Lincoln
replacement
parts
to
assure
compatible
pressure
rating.
Heed ALL warnings.
DO NOT OPERATE
Ejector
in excess
of recommended
pressure
range.
NOTE:
A24"
length of 1/2"
I.D. hose
must be used at the material
inlet to
prevent
hydraulic
lock
which
may
occur
if rigid piping
is used.
ALWAYS
read
and follow
the
fluid and solvent
manufacturer's
recommendations
regarding
the
use of protective
clothing
and
equipment.
To reduce
the risk of serious
bodily injury or property
damage.
NEVER
exceed
the maximum
air
or fluid working
pressure
of the
lowest rated system component
OPERATION
Model
85250
Ejector
incorporates
an
inline
double
power
air cylinder
which
produces
a 35:1
ratio
during
the
dispense
cycle.
This
is
achieved
through
special
porting
through
the
upper piston rod which allows air to flow
and
pressurize
the
top
sides
of the
pistons.
When
the
Ejector
is pressurized
to
dispense
material,
air should
also
be
vented
from
the
bottom
of the
lower
piston. The bottom
of the upper piston is
never
pressurized
because
of a small
hole
in the
upper
cylinder
wall
which
exposes
it to ambient
pressure.
As the
Ejector
continues
it's dispense
stroke,
it's travel
is limited
by the adjustment
screw.
When
the
Ejector
is retracted,
air is
vented from the tops of the two cylinders
and pressure
builds
under
the
lower
piston. When the Ejector is fully retracted,
pressurized
material
enters the material
inlet and refills the void of the pumping
chamber
just in front
of the plunger.
The Ejector
is now ready
for another
dispense
stroke.
SERVICE AND
DISASSEMBLY
PROCEDURE
Always disconnect air supply
to Ejector
and relieve
pressure
before checking, servicing, or
repairing any part of Ejector.
TOOLS REQUIRED
1. 7/16"
Open
End Wrench
2. 1/2"
Open
End Wrench
3. 5/8"
Open
End Wrench
4. 3/4"
Open
End Wrench
5. 7/8"
Open
End Wrench
6. 1-1/2"
Open
End Wrench
7. Pliers
Disassembly
of
Air Components
1. Remove
the
four
Bolts
and
Lock-
washers
(Items
2 & 3).
2. Lift the Top
Plate
and
Gasket
off
(Items
4
& 5). Gasket
must
be
replaced.
3. Remove
the
top
Air
Cylinder
(Item 6).
4. Hold the top of
the Plunger
(Item 21)
with a 1/2" wrench
through
the slot-
ted holes
in the Cylinder
(Item
16)
while
removing
the top piston
Bolt
(Item
1).
5. Remove
the Spacer
(Item 8).
6. Remove
the top Piston
and O-ring
sub-assembly
(Items
7, 9 & 10).
7. Hold the center
Cylinder
(Item 30)
while
lifting
off the center
divider
Plate
and
O-ring
subassembly
(Items
11 & 12) and upper
Piston
Rod (Item
13).
8. Remove
the upper
piston
rod from
the center
divider
plate.
9. Remove the center Cylinder (Item 30)
which
will include
the lower
Piston
and O-ring sub-assembly
(Items 7, 9
& 10).
10. Remove
the lower
Gasket
(Item 5)
for replacement.
11. Remove the
lower
divider
Plate,
Piston
Rod and Connector
(Items
14, 29 & 15). At this point the entire
air unit is disassembled
and all seals
can be replaced
if necessary.
Disassembly
of
Wetted Components
1. Remove
the Packing
Nut and Gasket
(Items
17 & 18)
2. Remove
the Bottom
Plate (Item
19).
3. Remove
the
Packing
Retainer
and
U-cup (Items
28 & 20).
4. Remove
the Cap (Item 27).
5. Remove
the Lock Nut (Item 25).
6. Remove
the Nose Adapter,
Adjusting
Screw
and
O-ring
sub-assembly
(Items
23, 26 & 24).
7. Turn the adjusting
screw
all the way
in (clockwise
direction)
to access the
O-ring
for replacement.
8. Finally
remove
the Gasket
(Item 22).
At this point the wetted
components
should
be completely
disassembled.
REASSEMBLY
To reassemble
the Ejector
reverse
the
Disassembly
Procedure.
IMPORTANT:
The small
holes
in the
upper
Piston
Rod
(Item
13) and
the
upper
Cylinder
(Item
6)
must
be
positioned
towards
the Body & Plunger
assembly
(Item 21) for proper
function
of the Ejector.
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