Sight Dome
Assembly
Fill Plug
Gasket
Disc
Disc Holder
Body (1/8", 1/4")
Dip Tube
Check Ball
Valve Holder
Spring
Bowl
L508 Miniature Lubricator
IS-L508
Lightly grease with provided lubricant.
Inspect for nicks, scratches, and surface imperfections.
If present, reduced service life is probable and future
replacement should be planned.
Clean with lint-free cloth.
0
0
3
12
9
6
15
0
4
5
1
2
3
0
.1
.2
.3
.4
5
6
2
4
6
Flow Characteristics
L508
Pressure Drop - PSIG
Pressure Drop - bar
25 PSIG 50 PSIG
Primary Pressure - PSIG
1.7 bar
3.4 bar
100 PSIG
6.9 bar
75 PSIG
5.2 bar
Primary Pressure - bar
Flow - SCFM
Flow - dm /s
3
n
Product
Bowl
Description
Number
Type
Bowl Replacement Kit*
Plastic
BK508Y
B
Zinc
BK509Y
D
Sight Dome Assembly
(Includes Knob, Sight Dome, Needle
RKL100
—
Valve, Hex Nut, Spring Washer,
Drip Spout, O-Rings)
Fill Plug
SA508Y4
—
Gasket
GSK-504Z101
—
Check Ball
506Y106
—
Disc
508Z37
—
Disc Holder
508Y47-1
—
Spring
SPR-330
—
Dip Tube
L05Y74-1
—
Valve Holder
508Y30-1
—
Mounting Bracket Kit
†
—
—
* Bowl kits include bowl seal.
†
“X67” Mounting Bracket option must be ordered with lubricator from
factory due to pre-drilled holes in lubricator head.
Service Kits / Parts Available
Filling
L508 Lubricators may be filled only under no pressure. To fill
the lubricator, the air supply must be shut off and the remaining
pressure in the system bled down to zero pressure. A long
spout oil can must be used. Slowly remove fill plug and insert
tip of spout to bottom of fill port recess. Fill to within 1/2" of top
of bowl using correct oil.
Adjustment
The adjustment knob is factory set so that, when turned fully
clockwise, no oil is delivered to the venturi for atomization, and
equipment is not being lubricated. To initially adjust oil drip rate,
turn on the air, start flow and set knob to obtain the desired drip
rate, which is visible through the sight dome. After system
reaches normal operating temperature, fine tune the drip rate
as needed. As a start, one to two drops per minute is suggested,
correct lubrication being a matter of experience and demand.
Clockwise rotation of knob decreases oil feed rate. To check
lubrication, hold a thumbnail or mirror near the equipment
exhaust. A heavy film indicates over-lubrication and the drip
rate should be reduced by turning knob to a lower setting. After
final setting has been achieved, the knob may be removed to
make the adjustment mechanism tamper resistant.
Cycling Applicator
If the lubricator is to be used in a cycling application, the
conditions must be as follows:
The lubricator must stay pressurized during on AND off cycles.
On cycle time must be at least 15 seconds, and the flow rate
during each cycle must be at least 2 SCFM.
Maintenance - Cleaning
If both air and oil are kept clean, and the oil level never allowed
below end of tube in the bowl, the lubricator should provide long
periods of unattended service. Cessation of oil dripping through
the sight dome, irrespective of knob adjustment, is an indication
that cleaning is necessary. To clean, it is not necessary to
remove lubricator from the line. Depressurize and disassemble
using the drawing as a guide. In most instances, cleaning is
needed only in the oil metering area. Pull off adjusting knob,
unscrew sight dome assembly, remove inner drip spout and
clean with household soap. PLASTIC BOWLS AND SIGHT
DOME MUST BE CLEANED WITH HOUSEHOLD SOAP ONLY.
