IMI norgren Micro-Fog L68C Installation & Maintenance Instructions

Type Port
C Oil-Fog 6 3/4"
Type
M Micro-Fog 8 1"
C ...Oil-Fog
A 1-1/4"
M ..Micro-Fog
B 1-1/2"
N No yoke

TECHNICAL DATA

TECHNICAL DATA
Fluid: Compressed air
Fluid: Compressed air
Maximum pressure: 17 bar (250 psig)
Maximum pressure: 17 bar (250 psig)
Operating temperature*: -20° to +80°C (0° to +175°F)
Operating temperature*: -20° to +80°C (0° to +175°F)
* Air supply must be dry enough to avoid ice formation at
temperatures below +2°C (+35°F).
* Air supply must be dry enough to avoid ice formation at
Start point (i.e. minimum flow required for lubricator
temperatures below +2°C (+35°F).
operation) at 6,3 bar (90 psig) inlet pressure:
Start point (i.e. minimum flow required for lubricator
Micro-Fog: 6 dm
3
operation) at 6,3 bar (90 psig) inlet pressure: Oil-Fog: 6 dm /s (13 scfm)
3
Typical flow at 6,3 bar (90 psig) inlet pressure and 0,5 bar
Micro-Fog: 6 dm3/s (13 scfm)
(7 psig) pressure drop:
Oil-Fog: 6 dm3/s (13 scfm)
Micro-Fog: 200 dm
Typical flow at 6,3 bar (90 psig) inlet pressure and 0,5 bar (7
Oil-Fog: 187 dm /s (396 scfm)
3
psig) pressure drop:
Nominal bowl sizes:
0,5 litre (1 pint US)
Micro-Fog: 200 dm3/s (424 scfm)
1 litre (1 quart US)
Oil-Fog: 187 dm3/s (396 scfm)
8 litre (2 gallons US)
Nominal bowl sizes:
20 litre (5 gallons US)
0,5 litre (1 pint US)
Recommended lubricants: See page N/AL.8.900.935
Materials:
1 litre (1 quart US)
Body: Aluminium
8 litre (2 gallons US)
Yoke: Aluminium
20 litre (5 gallons US)
Bowl, 0,5 litre (1 pint US) and 1 litre (1 quart US):
Recommended lubricants: See page N/AL.8.900.935 Aluminium
Bowl sight glass: Pyrex
Materials:
Reservoirs, 8 litre (2 gallons US) and 20 litre (5 gallons
Body: Aluminium
US): Steel
Yoke: Aluminium
Reservoir sight tube: Polythene
Bowl, 0,5 litre (1 pint US) and 1 litre (1 quart US): Elastomers: Synthetic rubber
Aluminium

REPLACEMENT ITEMS

Bowl sight glass: Pyrex Service kit (items circled on exploded view)
Micro-Fog models ..............................................4382-301
Reservoirs, 8 litre (2 gallons US) and 20 litre (5 gallons US): Steel
Oil-Fog models ...................................................4382-300
Reservoir sight tube: Polythene
0.5 litre bowl liquid level lens (19 thru 27) ............4380-060
Elastomers: Synthetic rubber
1 litre bowl liquid level lens (30 thru 38) ...............4380-061
Manual drain, spindle type (44) .................................684-84
Manual drain, 1/4 turn (40)........................................619-50
REPLACEMENT ITEMS
Tamper resistant wire (pack of 10) ..........................2117-01
Service kit (items circled on exploded view)

INSTALLATION

Micro-Fog models
1. Install yoke in air line -
Oil-Fog models
with air flow in direction of arrow on top of yoke,
�
0.5 litre bowl liquid level lens (19 thru 27)
upstream of cycling valves,
�
1 litre bowl liquid level lens (30 thru 38) as close as possible to the device being lubricated,
�
Oil-Fog Models - Not more then 5.2 m (15 feet) from the
Manual drain, spindle type (44)
�
device being lubricated, and at the same height or higher
Manual drain, 1/4 turn (40)
than the device.
Tamper resistant wire (pack of 10)
2. Connect piping to yoke ports using pipe thread sealant on
male threads only.
3. Lubricate o-rings (2, 6) with a light coat of o-ring grease,
INSTALLATION
then place o-rings in grooves in body (1, 5).
1. Install unit vertically in air line -
4. Place clamp ring under lugs on top of yoke.
• vertically (bowl down),
5. Make sure arrows on yoke and regulator point in same
• with air flow in direction of arrow on body, direction, then plug lubricator into yoke and tighten clamp
ring hand tight.
• upstream of cycling valves
6. Turn bowl into body until arrowhead on bowl is aligned
• as close as possible to the device being lubricated,
with or to the right of the arrowhead on the body.
• Oil-Fog Models - Not more than 5,2m (15 feet) from the
device being lubricated, and at the same height or higher
than the device.
2. Connect piping to yoke ports using pipe thread sealant on
male threads only.
3. Lubricate o-rings (2, 6) with a light coat of o-ring grease,
then place o-rings in grooves in body (1, 5).
4. Place clamp ring under lugs on top of yoke.
5. Make sure arrows on yoke and regulator point in same
direction, then plug lubricator into yoke and tighten
clamp ring hand tight.
6. Turn bowl into body until arrowhead on bowl is aligned
with or to the right of the arrowhead on the body.

RECOMMENDED LUBRICANTS

Fill reservoir with a good quality, light, misting type oil for
compressed air tools. See our publication N/AL.8.900.935.

FILL RESERVOIR (OIL-FOG LUBRICATORS)

Remove fill plug (14), add oil, and reinstall fill plug. Fill plug
can be removed and oil added without shutting off air
pressure to the lubricator. Oil level must always be visible in
lens on metal reservoirs. DO NOT OVERFILL.
Bowl sight glass: Pyrex
Reservoirs, 8 litre (2 gallons US) and 20 litre (5 gallons
US): Steel
Reservoir sight tube: Polythene
Elastomers: Synthetic rubber
REPLACEMENT ITEMS
Service kit (items circled on exploded view)
Micro-Fog models ..............................................4382-301
Oil-Fog models ...................................................4382-300
0.5 litre bowl liquid level lens (19 thru 27) ............4380-060
1 litre bowl liquid level lens (30 thru 38) ...............4380-061
Manual drain, spindle type (44) .................................684-84
Manual drain, 1/4 turn (40)........................................619-50
L68H - HHH - HHH
Tamper resistant wire (pack of 10) ..........................2117-01
INSTALLATION
1. Install yoke in air line -
with air flow in direction of arrow on top of yoke,
�
upstream of cycling valves,

Thread

Type
�
as close as possible to the device being lubricated,
A PTF P Unidirectional
�
Yoke Port Size Oil-Fog Models - Not more then 5.2 m (15 feet) from the
B ISO Rc taper �
6.....3/4" device being lubricated, and at the same height or higher
Thread Type Type
G ISO G parallel
8.....1"
than the device.
A ....PTF P ...Unidirectional
N No yoke
A ....1-1/4"
2. Connect piping to yoke ports using pipe thread sealant on
B ....ISO R c tapered
B ....1-1/2"
male threads only.
G ....ISO G parallel
N ....No yoke
3. Lubricate o-rings (2, 6) with a light coat of o-ring grease,
N ....No yoke
then place o-rings in grooves in body (1, 5).
4. Place clamp ring under lugs on top of yoke.

FILL RESERVOIR (MICRO-FOG LUBRICATORS)

5. Make sure arrows on yoke and regulator point in same
Shut off inlet air pressure and reduce pressure in reservoir
direction, then plug lubricator into yoke and tighten clamp
to zero. Remove fill plug (14), add oil, and reinstall fill plug.
ring hand tight.
Do not remove the fill plug when the reservoir is
6. Turn bowl into body until arrowhead on bowl is aligned
pressurized, as oil will blow out the fill plug hole.
with or to the right of the arrowhead on the body.
Micro-fog lubricators can be filled under pressure only if
equipped with the optional quick fill cap (16), which requires
/s (13 scfm)
a quick fill connector and oil pump. Oil level must always be
visible in lens on metal reservoirs. DO NOT OVERFILL.
/s (424 scfm)
3

ADJUSTMENT

1. Turn on system pressure.
2. Adjust lubricator drip rate only when there is a constant
rate of air flow thru the lubricator. Monitor drip rate thru
sight feed dome (9).
3. Oil-Fog Lubricators - Oil-fog lubricators are equipped
with a green lockring on sight-feed dome (9). Determine
the average rate of flow thru the lubricator. Turn knob
(9) to obtain one drop per minute for each 5 dm 3 /s (10
4382-301
scfm). For example, if the average flow is 19 dm 3 /s (40
4382-300
scfm), set the drip rate at 4 drops per minute. Turn knob
4380-060
counterclockwise to increase and clockwise to decrease
4380-061
the drip rate. Push green lockring down to lock drip rate
684-84
setting; pull up to release.
619-50
4. Micro-Fog Lubricators - Micro-fog lubricators are
2117-01
equipped with a red lockring on sight-feed dome (9). De-
termine the average rate of flow thru the lubricator. Turn
knob (9) to obtain the recommended drops per minute.
See Drip Rate Chart. Turn knob counterclockwise to
increase and clockwise to decrease the drip rate. Push red
lock-ring down to lock drip rate setting; pull up to release.

Drip Rate Chart for Micro-Fog Lubricators

Flow - dm 3 /s (scfm)
5 (10)
12 (25)
24 (50)
35 (75)
47 (100)
59 (125)
71 (150)
83 (175)
94 (200)
106 (225)
118 (250)
130 (275)
5. Monitor the device being lubricated for a few days
following initial adjustment. Adjust the drip rate if the oil
delivery at the device appears either excessive or low.
6. Drip rate setting can be made tamper resistant by
installing a seal wire (see Replacement Items) in groove
above lock-ring.
Our policy is one of continued research and development. We therefore reserve the right to amend, without notice,
Our policy is one of continued research and development. We therefore reserve the right to amend,
without notice, the specifications given in this document. (1999-xxxxb) © 2020 IMI International s.r.o.
L68C, L68M Micro-Fog® and Oil-Fog Tool Lubricators
L68C, L68M - Micro-Fog® and Oil-Fog Tool Lubricators
L68� - ��� - ���
Drain
E Closed bottom
M Manual, spindle type
Drain
Q Manual 1/4 turn
E ...Closed bottom
R Remote fill
M ..Manual, spindle type
Q...Manual, 1/4 turn
R...Remote fill
RECOMMENDED LUBRICANTS
Fill reservoir with a good quality, light, misting type oil for
compressed air tools. See our publication
N/AL.8.900.935.
FILL RESERVOIR (OIL-FOG LUBRICATORS)
Remove fill plug (14), add oil, and reinstall fill plug. Fill
plug can be removed and oil added without shutting off air
pressure to the lubricator. Oil level must always be visible
in lens on metal reservoirs. DO NOT OVERFILL.
FILL RESERVOIR (MICRO-FOG LUBRICATORS)
Shut off inlet air pressure and reduce pressure in reservoir
to zero. Remove fill plug (14), add oil, and reinstall fill plug.
Do not remove the fill plug when the reservoir is
pressurized, as oil will blow out the fill plug hole.
Micro-fog lubricators can be filled under pressure only if
equipped with the optional quick fill cap (16), which
requires a quick fill connector and oil pump. Oil level must
always be visible in lens on metal reservoirs. DO NOT
OVERFILL.
ADJUSTMENT
1. Turn on system pressure.
2. Adjust lubricator drip rate only when there is a constant
rate of air flow thru the lubricator. Monitor drip rate thru
sight feed dome (9).
3. Oil-Fog Lubricators - Oil-fog lubricators are equipped
with a green lockring on sight-feed dome (9). Determine
the average rate of flow thru the lubricator. Turn knob (9)
to obtain one drop per minute for each 5 dm
scfm). For example, if the average flow is 19 dm
scfm), set the drip rate at 4 drops per minute. Turn knob
counterclockwise to increase and clockwise to decrease
the drip rate. Push green lockring down to lock drip rate
setting; pull up to release.
4. Micro-Fog Lubricators - Micro-fog lubricators are
equipped with a red lockring on sight-feed dome (9).
Determine the average rate of flow thru the lubricator.
Our policy is one of continued research and development. We therefore reserve the right to amend, without n
Turn knob (9) to obtain the recommended drops per
minute. See Drip Rate Chart. Turn knob
counterclockwise to increase and clockwise to decrease
the drip rate. Push red lock-ring down to lock drip rate
setting; pull up to release.
Drip Rate Chart for Micro-Fog Lubricators
3
Flow - dm /s (scfm) Drops per Minute
5 (10) 10
12 (25) 14
24 (50) 21
35 (75) 28
47 (100) 35
59 (125) 41
71 (150) 47
83 (175) 54
94 (200) 60
106 (225) 66
118 (250) 73
130 (275) 80
Drops per Minute
5. Monitor the device being lubricated for a few days
following initial adjustment. Adjust the drip rate if the oil
10
delivery at the device appears either excessive or low.
14
6. Drip rate setting can be made tamper resistant by
21
installing a seal wire (see Replacement Items) in groove
28
above lock-ring.
35
Disassembly
41
1. Shut off inlet pressure. Reduce pressure in inlet and
outlet lines to zero. Loosen fill plug (14).
47
2. Unscrew the clamp ring and remove lubricator from
54
yoke.
60
3. Disassemble in general accordance with the item
66
numbers on exploded view. Do not remove the drains
(40, 44), plug (50), remote fill (51) unless malfunction
73
occurs and replacement is necessary. Do not remove
80
sensor and retainer (3, 3A, 7, 7A), siphon tube (55), fog
generator (57), check valve (59) unless lubricator
malfunctions and replacement is necessary.
Cleaning
1. Clean parts using warm water and soap.
2. Dry parts. Blow out internal passages in body with clean,
dry compressed air.
3. Inspect parts. Replace parts found to be damaged.
the specifications given in this document. © 2001 Norgren, Inc.
sight feed dome (9).
3. Oil-Fog Lubricators - Oil-fog lubricators are equipped
with a green lockring on sight-feed dome (9). Determine
the average rate of flow thru the lubricator. Turn knob (9)
to obtain one drop per minute for each 5 dm
scfm). For example, if the average flow is 19 dm
scfm), set the drip rate at 4 drops per minute. Turn knob
counterclockwise to increase and clockwise to decrease
Installation & Maintenance Instructions
the drip rate. Push green lockring down to lock drip rate
setting; pull up to release.
4. Micro-Fog Lubricators - Micro-fog lubricators are
equipped with a red lockring on sight-feed dome (9).
Determine the average rate of flow thru the lubricator.
Turn knob (9) to obtain the recommended drops per
Installation & Maintenance Instructions
minute. See Drip Rate Chart. Turn knob
counterclockwise to increase and clockwise to decrease
the drip rate. Push red lock-ring down to lock drip rate
setting; pull up to release.
Drip Rate Chart for Micro-Fog Lubricators
Bowl
3
Flow - dm /s (scfm) Drops per Minute
C 1 litre (1 quart U.S.), No liquid level indicator
5 (10) 10
M 0,5 litre (1 pint U.S.), No liquid level indicator
12 (25) 14
Bowl
R R...0,5 litre (1 pint U.S.), With liquid level indicator
24 (50) 21
C ...1 litre (1 quart U.S.), No liquid level indicator
U 1 litre (1 quart U.S.), With liquid level indicator
35 (75) 28
M ..0,5 litre (1 pint U.S.), No liquid level indicator
47 (100) 35
R...0,5 litre (1 pint U.S.), With liquid level indicator
59 (125) 41
U...1 litre (1 quart U.S.), With liquid level indicator
71 (150) 47
83 (175) 54
9
94 (200) 60
12
106 (225) 66
10
118 (250) 73
13
11
130 (275) 80
5. Monitor the device being lubricated for a few days
Micro-Fog Body
following initial adjustment. Adjust the drip rate if the oil
2
1
delivery at the device appears either excessive or low.
4
6. Drip rate setting can be made tamper resistant by
installing a seal wire (see Replacement Items) in groove
above lock-ring.
DISASSEMBLY
1. Shut off inlet pressure. Reduce pressure in inlet and
outlet lines to zero. Loosen fill plug (14).
56
3A 3
2. Unscrew the clamp ring and remove lubricator from
yoke.
58
55
3. Disassemble in general accordance with the item
57
numbers on exploded view. Do not remove the drains
(40, 44), plug (50), remote fill (51) unless malfunction
occurs and replacement is necessary. Do not remove
sensor and retainer (3, 3A, 7, 7A), siphon tube (55), fog
18
generator (57), check valve (59) unless lubricator
27
malfunctions and replacement is necessary.
CLEANING
1. Clean parts using warm water and soap.
20 21
3 /s (10
2. Dry parts. Blow out internal passages in body with clean,
3 /s (40
dry compressed air.
19
3. Inspect parts. Replace parts found to be damaged.
22
24
25
26
22
28
the specifications given in this document. © 2001 Norgren, Inc.
23
20
21
19
40
47
43
48
42
45
41
46
51
53
54
52
20 21
3
/s (10
3
/s (40
19
22
24
25
26
22
23
20
19
Options
N None
40
Q Quieck fill nipple
Options
N...None
43
Q...Quick fill nipple
16
14
15 17
Oil-Fog Body
6 42
5
8 41
7A
7
53
56
60
61
55
59
54
29
38
32
31
30
33
52
35
36
37
33
34
31
39
32
30
44
50
49
IM-260.400.01 (5/01
01/22
IM/en 8.260.400.01
5