Lincoln Centro-Matic SL-11 User manual

User Manual
Centro-Matic Injector SL-11 4.2A-68381-C01
Page 1 of 6
Injector No. 85497 Ser. B
Subject to change
LINCOLN GmbH ∗ Postfach 1263 ∗ D-69183 Walldorf ∗ Fax [phone] ∗Tel [phone]
Injector type SL-11
1. Foreword
Installation work, setting-up, operation and maintenance of
Injectors and the Central Lubrication System shall be
executed by qualified, trained personnel.
This User Manual is primarily intended to familiarize the user
of Centro-Matic central lubricating equipment with the
supplied product ‘Injector’ and its specifications. It shall also
aid to identify parts by part number and parts for service part
inventory.
2. Safety Instructions
Warnings for exposure to hazards that may
result in serious personal injury if ignored,
are marked in the manual by the general
safety symbol
Safety Symbol
according to DIN 4844-W9
CAUTION
Safety instructions that might result in equipment damage and
machine malfunction if ignored, are marked by the word
‘CAUTION’.
Also heed safety instructions of the manufacturer of the
machine!
3. Specifications of the Product
Manufacturer Sales & Service
LINCOLN Lincoln GmbH
St. Louis, Mo 63120-1578 Heinrich-Hertz-Str. 2-8
USA D-69190 Walldorf / Germany
Contact customer service if requiring additional
information or service:
See bottom line for telephone- and telefax number
Designated Use
•Single-line metering device for grease up to class NLGI
# 2, for use in Centro-Matic single-line lubrication systems.
The lubricant must be suitable for the application with the
Centro-Matic single line system.
•Metering device for petroleum based lubricants; if using
synthetic lubricants, the subject lubricant must be compatible
with the construction parts (steel, Viton seals) of the injector.
•Designed for pressure range of 70-240 bar for operating
during lubrication cycle and residual pressure < 55 bar
between lubricating intervals in the pause time.
General Description
Injector SL-11 is a so-called ‘direct’ single-line metering
device. The injector lubricates under pressure applied by the
pump to the injector piston. The spring of the injector is only
for re-charging purposes.
The lubricant output is adjustable in a range between
0,82 cm3to 8,19 cm3by the adjusting screw.
The working pressure (fluid pressure) of the pump must be at
least 70 bar for lubricating and shall not exceed 240 bar. The
recommended pressure for standard application of Centro-
Matic single-line grease systems is 173 bar.
After pressure build-up and completion of the lubricating
phase, the supply line (lubricant line between pump and
injector) must be relieved from pressure. To permit the
injector to re-charge, the pressure at the injector inlet must
drop below 55 bar during the pause time.
Injector SL-11 can be used in a single-line circuit of injectors
type SL-1, SL-32 or SL-33 in Centro-Matic central lubrication
systems for grease. Attention: When used together with
injectors type SL-32 & SL-33 in a system, the pressure relief
must be < 13 bar (instead of 55 bar).
P1Inlet P2Outlet
aDischarge chamber bMeasuring chamber
1Adjusting screw xFitting with cap
*~ 16 mm (min.-max. ~ 12¾ turns)
Note: Check output of lubricant directly at the outlet of the
injector if the adjusting screw is adjusted to less than ½ turn
from minimum. The closed control outlet (x) is designed for
filling the feed line and permits check for verification of the
lubricant output from the injector.
Injector output adjustment:
See Section 5 ‘Operation’.
Operating Instructions & Service Parts List

User Manual
Centro-Matic Injector SL-11 4.2A-68381-C01
Page 2 of 6
Injector No. 85497 Ser. B
Subject to change
LINCOLN GmbH ∗ Postfach 1263 ∗ D-69183 Walldorf ∗ Fax [phone] ∗Tel [phone]
Technical Data
Injector type Series SL-11
Part number 85497 Singleunitinjector
Output range 0,82-8,19 cm3
Output adjustment Setting by adjusting screw,
min. to max. ~ 12¾ turns )1
Operating minimal normal maximal
pressure )270 bar 173 bar 240 bar
Vent pressure < 55 bar
Constr. materials Steel
Seals: Viton
Back-up rings: Teflon
Amb. temperature TMIN TMAX
(constr. materials) - 40° C + 93° C
Connections: Inlet 1/2“ NPTF female
Outlet 1/4“ NPTF female
Weight 2,7 kg
Note:
=)1 Attention: Check output if Adjusting Screw is adjusted
to less than ½ turn from minimum.
=)2‘normal’ = recommended operating pressure.
The operating pressures listed under ‘minimal’ and ‘Vent
pressure’ are changed and deviate from specifications of the
previous injector SL-11 series.
During pause time, after completion of the lubrication cycle, a
pressure relief below 55 bar must follow.
Also note: When used together with injectors type SL-32 &
SL-33 in a system, the pressure relief must be < 13 bar
(instead of 55 bar).
On lay-out of a Centro-Matic system, take the operating /
ambient temperatures in mind because of the affect on the
ventability of a lubricant in the piping system. Always use
lubricant supply lines of appropriate inside diameter.
Dimensions
Injector SL-11
4. Erection & Installation
Warning
Never exceed the maximum working pressure
of the Centro-Matic system.
Do not carry out any assembly or disassembly
works when the system is pressurized or
pump/machine are in operation.
CAUTION Before using synthetic lubricants, check
compatibility with the construction materials of
injectors and other system components.
Required tools
Ring & Open end wrenches of inch-size series are required
for the installation of injectors.
Mounting of injectors
The injector outlet has a female thread of 1/4“ NPTF for con-
necting the lubricant feed line.
The inlet adapter at the bottom of the injector has a female
thread of 1/2“ NPTF for connecting the main or branch line of
the supply line.
Order connectors separately if required.
•Injectors can be mounted in any position.
Mount injector in a position which permits access for output
adjustment and visual function control of the injector.
•Location of injectors
See drawing & instructions of the machine manufacturer.
•Allocation of injector/lubricating point
See drawing & instructions of the machine manufacturer.
Note: When using feed line tubing of 3/8“ O. D. (~ 9,6 mmØ),
the feed line must not exceed a length of approx. 13,5 m
(based on grease NLGI #1 at 18° C).
Observe on mounting that injector and routing of lines (supply
line / feed line) do not interfere with the machine operation.
Keep lines clear from damage. Consider max. ambient
temperature in case of heat radiation of the machine.
•Replacement Injector; pls. note for assembly/disassembly:
When the injector has been replaced:
−Vent injector and relevant line.
−Adjust lubricant output of the injector.
See Section 5. ‘Operation’.
General information concerning the lines for lubricant.
Piping and fastening material :
See drawing & parts list of the machine manufacturer.
As for material quality, resistance to pressure, nominal width
and length, the lines used must correspond to the individual
operating conditions and must be suitable for the central
lubrication system.
•Install lines in accordance with good plumbing practice.
−Securely tighten connectors to avoid leakage; when
installing, follow procedure recommended by the fitting
manufacturer.
−Tubing and hoses must be clean inside before installing;
remove all foreign particles. Steel tubing must be free from
rust.
−Use tube cutter for cutting steel tubing. Make rectangular
cuts and avoid burrs.
−Observe manufacturer standards concerning the bending
radius of steel tubing & pipes and flexible tubes.
−Lines should be securely anchored; use tube clamps to
avoid vibration and tearing off of lines.

User Manual
Centro-Matic Injector SL-11 4.2A-68381-C01
Page 3 of 6
Injector No. 85497 Ser. B
Subject to change
LINCOLN GmbH ∗ Postfach 1263 ∗ D-69183 Walldorf ∗ Fax [phone] ∗Tel [phone]
5. Operation Never exceed the maximum working pressure
of the Centro-Matic system.
Do not carry out any assembly or disassembly
works when the system is pressurized or
pump/machine are in operation.
Setting-up for operation
For setting-up of Centro-Matic Central Lubrication Pump and
Controller:
See User Manual of supplied components.
See specific instructions and safety instructions of the
manufacturer/supplier of the machine.
Initial operation Safety instruction
Wear safety glasses when venting lubricant
supply lines. Avoid splashing.
Prior to the initial operation:
Read specific instructions as well as safety instructions of
the manufacturer/supplier of the machine.
Filling and venting of the lubricant supply line
Before the injectors may be operated the following steps are
necessary:
−Fill main line with lubricant
−Vent branch lines and supply line riser.
−Flush supply line while carrying-out the venting procedure.
•Operate pump with low pressure when filling and venting
lines.
•Provide assistant with a can to collect the expelled
lubricant when venting the lines.
•Check lubricant supply line for any leakage
Please note: The max. working pressure of Injector SL-11 is
240 bar.
Output adjustment of injector type SL-11
Legend:
1Adjusting screw (hex. 5/8“)
2Indicator stem
(visual function indicator)
3Lock nut (hex. 3/4“)
*~ 16 mm
(min.-max. ~ 12¾ turns)
CAUTION Adjustment is only permitted when supply line
/ injectors are depressurized.
Observe lubricant requirement of each lubricating point and
the lubricant output setting of the individual injectors:
See lubrication chart and instructions of the machine
manufacturer.
Loosen lock nut (3).
Turn adjusting screw (1) clockwise into injector body to its
stop,hand tight.Useopen-end wrench.
Then turn adjusting screw (1) counter-clockwise. After ~ 12¾
turns of the adjusting screw the injector is set to the max.
output of 8,19 cm3. If a lower output setting is desired, turn the
adjusting screw proportionally.
When the injector has been adjusted for the proper lubricant
output, lock adjusting screw (1) with lock nut (3).
Note: Retracting the adjusting screw beyond 12¾ turns will
not increase the lubricant output beyond the max. output!
Attention: Check output of lubricant directly at the outlet of
the injector if the adjusting screw is adjusted to less than ½
turn from minimum.
Note: Before operating the machine, for example after
installation works or repairs:
•Main supply line / branch lines and injectors must be filled
with lubricant and vented.
•Feed lines must be filled with lubricant and connected with
lube points.
•The function of all injectors must have been checked.
•All injectors and the system control for the lubricating
intervals must have been adjusted in compliance with the
specifications.
ÞSee specific instructions of the machine manufacturer.
Functional check of injectors
The recommended system operating pressure is 173 bar;
adjust pump and control system accordingly.
ÞSee User Manual of the relevant central lubrication
pump / control system and injectors.
•Initiate manual starting of the lubricating cycle.
After the rising of the pressure to ~ 70 bar the indicator stem
of the injector must be retracted; after pressure relief
< 55 bar the indicator stem must return, back to rest position.
Insufficient venting of the supply line system may impair the
function of injectors.
Note: When used together with injectors type SL-32 & SL-33
in a system, the pressure relief must be < 13 bar (instead of
55 bar).
When all injectors of the system have been checked and
function properly:
Fill feed lines with lubricant
Before connecting the feed lines to the lubricating points:
•Fill feed lines with lubricant.
Use only lubricant specified by the machine manufacturer for
pre-filling.
−Fill lines with lubricant by means of a grease gun.
The feed line can be filled via the fitting in the control outlet
port in the injector body.
−Check feed line outlet for evidence of lubricant flow.
−Collect emerging lubricant at the end of the line.
When all lines have been filled:
•Connect feed lines.

User Manual
Centro-Matic Injector SL-11 4.2A-68381-C01
Page 4 of 6
Injector No. 85497 Ser. B
Subject to change
LINCOLN GmbH ∗ Postfach 1263 ∗ D-69183 Walldorf ∗ Fax [phone] ∗Tel [phone]
Operation
During operation of the central lubrication system
−all injectors must have been set to the lubricant output
specified by the machine manufacturer.
−the lubrication system controller must have been set to
pause time as specified by the machine manufacturer.
−the required operating pressure (fluid pressure) for
operating the injectors (lubricant discharge) as well as the
subsequent pressure relief of the lubricant supply line for
re-charge of the injectors have to be observed.
When the machine is put out of operation
−the central lubrication system must be switched off.
CAUTION
Excess lubrication or insufficient lubrication may result in
machine damages.
Do not use contaminated lubricants.
Warning
Never exceed the admissible working pressure of
the central lubrication system.
Switch off pump immediately in case of defects or
abnormal operating performance.
When putting machine and central lubrication system in
operation after a longer shut-off period:
−Check function of the central lubrication system.
Inspection and maintenance
Warning
Never attempt to disassemble the equipment
while pump is in operation or system is
pressurized.
Do not perform adjustment of injectors while the
system is pressurized.
−Check all lubricant lines and injectors regularly to ensure
leak proof and proper condition.
−Check function of the central lubrication equipment
(pump/controller/injectors) regularly.
•Eliminate defects immediately.
Maintenance Warning
Never attempt to disassemble the equipment
while pump is in operation or system is
pressurized.
Before performing any works the machine must be out of
operation.
Heed safety instructions of the machine manufacturer.
If machine components being also part of the central
lubrication system were removed for service, they shall be
properly reassembled before the machine is operated again.
Then check the function of the centralized lubrication system as
specified. The same applies to maintenance work performed on
parts of the Centro-Matic central lubrication system.
Avoid contamination of the indicator stem in order to prevent
premature wear of the injector seal. If necessary, provide
protective injector cover cap;
No. 83730 Cover Cap, Vinyl plastic material.
Trouble shooting
ÞSee checklist below
ÞSee User Manual of the relevant central lubrication pump.
ÞSee User Manual of the relevant system control &
monitoring equipment and instructions of the manufacturer
of the machine. CAUTION
Operation of the machine with inactive or defective central
lubrication system will cause damages to the machine.
ÞSee instructions of the machine manufacturer.
Malfunction of individual lubricant metering devices or
damaged lubricant feed lines will cause damage of parts
connected to because of lack of lubrication.
Note on Checklist:
The numbers in bold brackets ( ) refer to the item numbers in
the service parts drawing & parts list of the injector.
Checklist
Problem Possible cause Solution
Leakage at the ends of the
cylindrical injector body Damaged or worn O-rings. Replace O-ring (4) (upper and / or lower)
Leakage at fitting assembly (10) Loose cap
Damaged fitting Tighten cap
Replace fitting assy. (10)
Leakage at indicator rod Worn or damaged packing
Worn or damaged indicator rod Replace (6).
Replace piston assy. (w. rod) (8) and
replace relevant packings.
Lubricant volume to bearing LOW. Output adjustment screw setting in-
correct.
Worn or damaged lower slide valve body
O-ring.
Plunger spring broken or worn.
Adjust to proper setting and lock with lock
nut.
Replace O-ring (13) and back-up
ring (12).
Replace spring (9).
Lubricant volume to bearing HIGH. Output adjustment screw setting in-
correct.
Worn or damaged upper slide valve body
O-ring.
Plunger spring broken or worn.
Worn or damaged slide valve assy. /
valve body.
Adjust to proper setting and lock with lock
nut.
Replace O-ring (13) and back-up
ring (13).
Replace spring (9).
Replace slide valve (11) and valve body
(14).

User Manual
Centro-Matic Injector SL-11 4.2A-68381-C01
Page 5 of 6
Injector No. 85497 Ser. B
Subject to change
LINCOLN GmbH ∗ Postfach 1263 ∗ D-69183 Walldorf ∗ Fax [phone] ∗Tel [phone]
6. Repair
Repairs must be carried out by qualified, trained personnel
only. Warning
Do not disassemble injectors when pump/central
lubrication system are pressurized.
Before performing any works the machine must be out of
operation.
Before servicing shut off pump/central lubrication system and
perform pressure relief procedure. Depressurize pump and
supply line system.
Always collect lubricant in a can.
Only use original replacement parts.
Use all parts included in a kit when replacing parts.
See service parts list for repair kits.
After repair of injectors:
−Check function of injectors.
After repair, before restart of normal operation of the
machine/central lubrication system:
−Adjust output of the relevant injectors as described.
Vent lubrication line system and check function of the central
lubrication system.
Required tools
Open-end wrenches 7/16“, 5/8“, 3/4“ and 2“.
Cylindrical brass or wooden dowel rod 11-12,5 mm & 5 mm
and a steel driver of approx. 3 mm Ø.
Note
The numbers in bold brackets ( ) refer to the item numbers in
the service parts drawing & parts list of the injector.
Disassembly of the Injector
1. Remove the adjustment adapter (3) from the top of the
injector.
2. Remove the piston assembly (8) from inside the injector.
3. Remove plunger spring (9) and spacer (17) from inside the
injector.
4. Remove the inlet adapter (16) from the bottom of the
injector.
5. To remove the slide valve assembly (11), turn injector
over, with the top pointing down. If the slide valve does not
fall out, it may be pushed out of the slide valve body with a
blunt object, being careful not to damage the slide valve
body.
6. To remove valve body (14) including O-rings and back-up
rings:
a) If it sticks in the inlet adapter (16),
gently pry the valve body out of the inlet adapter using a
small round rod. Place the rod into a hole in the side of the
valve body (14) and pry against the face of the inlet
adapter. Work one hole at a time, working around the
valve body until it is freed.
b) If the valve body sticks in the injector body (15),
turn injector right side up and use a 11-12,5 mm Øbrass or
wooden dowel to gently tap the valve body out of the
injector body.
7. Remove back-up rings and O-rings (12 & 13) from the
valve body (14).
8. Remove adjusting screw (1) from adjustment adapter (3).
9. To remove the indicator stem packing (6) from the
adjustment adapter (3), use a blunt object, such as a
wooden dowel, placed into the adjustment screw hole to
gently push the washer (5) and stem packing (6) out of the
adjustment adapter, from the bottom side.
Reassembly instructions
Note: Clean all injector components, and carefully inspect
all parts for wear, replacing parts as necessary.
Generally replace all gasket and seals after a complete
disassembly of the injector.
Apply a liberal coating of lubricant to seals, piston, valve
piston and threaded parts on reassembly of the injector.
Adhere to torque specifications for tightening adjustment
adapter (3) and inlet adapter (16).
ÞSee service parts drawing.
1. Start reassembly by pre-assembling the valve body
(14), by installing the O-rings (13) and back-up rings (12).
See valve body detail, for correct assembly sequence.
Apply a liberal amount of grease to O-rings on outside of
valve body, and gently push the pre-assembled valve body
into the inlet of adapter (16).
2. Install O-ring (4) onto the inlet adapter (16). Install inlet
adapter into the injector body (15), and tighten by hand
assuring that the valve body (14) slides into it´s respective
bore in the injector body. Tighten the inlet adapter to the
injector body, observing the specified torque.
3. Apply a liberal coating of grease to the slide valve
assembly (11). Insert the slide valve assembly through the
top of the injector into the valve body (14), which should
already be installed into the bottom of the injector body.
4. Apply a liberal coating of grease to the piston bore in the
injector body (15). Drop in the plunger spring (9) and place
the spacer (17) inside the spring.
5. Install the O-ring (7) on the piston assembly (8). Apply a
liberal coating of grease to the piston, O-ring and indicator
rod. Place the piston assembly into the piston bore of the
injector body (15).
6. Install the O-ring (4) on adjustment adapter (3).
7. Install washer (5) and packing (6) into adjustment adapter
(3). Apply grease to the O-ring on the adjustment adapter
and the mating bore on the top of the injector body.
Carefully slide the pre-assembled adjustment adapter over
indicator pin down and screw both parts (3 & 15) together
hand tight.
8. Then tighten adjustment adapter (3) with wrench,
observing the specified torque.
9. Reinstall lock nut (2) and screw adjusting screw (1) into
the adjustment adapter (3).
For installation of injector in central lubrication system and
output adjustment of the injector:
ÞSee sections 4. and 5. of the operating instructions.
Please always note specific instructions and safety
instructions of the machine manufacturer on installation and
start-up.

User Manual
Centro-Matic Injector SL-11 4.2A-68381-C01
Page 6 of 6
Injector No. 85497 Ser. B
Subject to change
LINCOLN GmbH ∗ Postfach 1263 ∗ D-69183 Walldorf ∗ Fax [phone] ∗Tel [phone]
Injector SL-11 No. 85497 Ser. B Service parts drawing & parts list
Item Description @Qty. Part no. Attention: Adhere to torque specifications on re-assembly.
1 ADJUSTINGSCREW 1 244628 Item 3 Adjustmentadapter torque 223,7 Nm
2 LOCKNUT 1 51039 Item16 Inletadapter torque 223,7 Nm
3 ADJUSTMENTADAPTER 1 244613
4 O-RING, Viton 2 - Wrench sizes
5 WASHER 1 - Item 10 7/16“ Item 1 5/8“
6 PACKING, Viton 1 - Item 2 3/4“ Item 3 & 16 2“
7 O-RING, Viton 1-
8 PISTON ASSY. w. stem 1 244622
9 PLUNGER SPRING 1-
Legend:
10 FITTING ASSY. 1 90471 ©Indicateschange
11 SLIDE VALVE ASSY. 1-
Column @: Item included in # 247842 Repair Kit
12 BACK-UP RING, Teflon 2-
Column @:Not available as repair part; replace if
13 O-RING, Viton 2 - damaged by new SL-11 # 85497.
14 VALVE BODY ©1 -
15 INJECTOR BODY 1 247768 Repair Kit 247842 containsallnormalwearpartsforthis
16 INLETADAPTER 1 244611 injector.
17 SPACER 1 244626