Lincoln industrial QLS 301 Owner's manual

QLS 301 Lubrication System
2.1A-380006-A99 April 1999 Form 402865 Section - Q3 Page - 9
QLS 301
InstallationandOperationInstructions
4197a99
810-55230-1

Page Number 2 of 24
QLS 301
Subject to modifications
2.1B-38006-A99 Form 402865
InstallationandOperationInstructions
Table of Contents
Safety Instructions ......................................................2
Installation Instructions...............................................3
Pump ............................................................................3
SSV Divider Block .........................................................3
Crossporting of the SSV Divider Block.........................3
Check valves .................................................................4
Feedback of supplied lubricant....................................4
Installing Zerk-Locks onto grease fittings ...................4
Connecting Feed Lines ................................................5
Filling of reservoir....................................................5
Setting of lubrication cycle time intervall ................5
Electrical Connection Diagrams ..................................6
QLS 301Selection Guide ..............................................7
Description of QLS 301 ...............................................8
Operating of QLS 301 ..................................................8
Pressure relief valve .....................................................9
Pump Display Window ................................................. 9
Monitoring time/malfunction .........................................9
Acknowledging the malfunction............................10
Low-level control ...................................................10
Acknowledging the low level indication................10
Malfunction/low level indication ............................10
Monitoring relay ...........................................................10
Metering of the lubricant .............................................10
Setting and operation
of the QLS 301 ............................................................ 11
Display mode .............................................................. 11
Operating mode ..........................................................12
Programming mode ...................................................13
Maintenance, Repair and Test ..................................14
Maintenace..................................................................14
Refilling reservoir ..................................................14
Repair..........................................................................14
Functional Test ............................................................14
Troubleshooting .........................................................15
Technical Data ............................................................17
Dimensions ................................................................18
Service Part of the QLS 301......................................19
Manufacturer’s declaration .........................................24
Safety Instructions
Appropriate Use
• Use QLS 301 only for the delivery of lubricants. The pump
is designed for intermittent operation. QLS 301 is desi-
gned of supplying lubricant to a maximum of 18 lube
points per cycle.
• Do not use QLS 301 with SSV block in bottom mounting
position for mobile applications. Don’t install the pump
in areas exposed to shock.
General safety Instructions
• Do not over pressurize reservoir when filling the pump.
Refill QLS 301 pump with clean lubricant.
• Incorrect use may result in bearing damage caused by
poor or over-lubrication.
• Each outlet used must be equipped with an appropriate
check valve see page 4, Fig.3.
• Unauthorized modifications or changes to an installed
system are not recommended and will void warranty. Any
modifications must be subject to prior consultation with
the manufacturer of the QLS 301.
Regulations for prevention of accidents
• To prevent accidents, observe all city, state and federal
safety regulation of the country in which the product will
be used.
For pumps with 120 VAC and 230 VAC, switch off the power
supply before beginning maintenance or repair work.
• QLS 301 operates automatically. However, a regular
check (approximately every 2 weeks) should be made to
ensure that lubricant is being dispensed from all lubricant
points.
• Used or contaminated lubricants must be disposed of in
accordance with local environmental regulations, see
technical data sheets of lubricants.
• The manufacturer of the centralized lubrication system
will not accept any liability for:
- damage due to the use of greases which are not or are
only conditionally pumpable in centralized lubrication
systems.
- damage caused by insufficient lubricant and irregular
refilling of pump.
- damage caused by the use of contaminated lubricants.
- damage caused by inadequate disposal of used or
contaminated lubricants.
- damage caused by unauthorized modification of system
componenets.
- damage caused by the use of unapproved parts (voids
the pump warrenty).
Operation, Repair and Maintenace
• Repairs should only be performed by authorized
personnel who are familliar with the instructions.
Explanation of symbols:
= explanation
* = describes and action
- = listing within a section
• QLS 301 must only operate with mounted or connected
SSV divider blocks.
• Pump must be regularly refilled with clean lubricant.

Subject to modifications
Page Number 3 of 242.1B-38006-A99
QLS 301
Form 402865
InstallationandOperationInstructions
Installation
• Do not remove, modify or alter any safety equipment
already installed on the machine.
• QLS 301 pump must be kept away from the sources of
heat (see Operating Temperature Specification).
• Follow installation instructions of the OEM regarding
minimum distances between the drilled holes and
welding procedures.
• Use following recommendations to select an installation
location:
- Keep the feed lines as short as possible.
- Provide access to fill, clean and visually monitor the
pump operation.
• Installing QLS 301 pump with the reservoir upright is
perferred, but pump may be installed with the reservoir in
horizontal without affecting its operation.
• The QLS 301 may only be installed by qualified person-
nel. The connection (N/L/PE) of the supply voltage must
be made according to VDE 0100 and VDE 0160.
• Install a protective and lock out device for isolating and
disconnecting the QLS 301. Before beginning the instal-
lation work, disconnect the electrical supply .
• Failure to observe the safety instructions, e. g. touching
electrically charged parts when the system is opened, or
improper handling of the QLS 301 may cause serious
injury or death.
• If the values specified in the Technical Data are excee-
ded, the device may overheat. It may damage the QLS
301 and thus impair the electric safety.
InstallationInstructions
Pump • Use drilling template to mark and drill mounting holes of
the QLS 301. Drilling template and mounting bolts are
included in the package.
SSV Divider Block Crossporting of the SSV divider blocks
• The outlets of the SSV divider block can be combined to
increase the amount of lubricant for a particular outlet. To
do this, simply plug the unused outlets with the closure
plug (see Fig. 2), provided in the accessory kit.
• Lubricant from a plugged outlet is redirected to the next
outlet on the same side of the SSV divider block in
descending numerical order (see Fig.1). For instance
plugging outlets 5 and 3 will triple the amount of lubricant
at outlet 1.
•Do not plug outlet numbers 1 and 2 on SSV 8, 12 and 18
of pump models with SSV divider block installed on the
bottom.
Fig.1 - Single double and tripple lubricant output
x -Outlet quantity (single, double, etc.)
1... 10 Outlet numbers
A - Clamping ring (brass)
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Fig. 2 - Closure plug, provided in the accessory kits
* Install a closure plug in each outlet port hole which is not
required, see Fig. 1 or 4.
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Page Number 4 of 24
QLS 301
Subject to modifications
2.1B-38006-A99 Form 402865
InstallationandOperationInstructions
Installing Zerk-Locks onto grease fittings ( for inch size
accessory kits only)
• The Zerk-Lock fitting consists of the Zerk-Lock body,
insert and a Quicklinc fitting.
* Place the Zerk-Lock body over the grease fitting and place
the staking tool firmly against the Zerk-Lock insert.
(Staking tool is included in the accessory kits, see page
8).
* Strike the tool sharply with a hammer until the Zerk-Lock
insert partially crimps onto the grease fitting.
Fig. 5 - Place the Zerk-Lock
body over the grease fitting
Direct (internal) feedback feature
• All pumps with the back mouted SSV divider block,
starting from serial No. 998000100C/001 are assembled
with outlet 2 plugged for direct feedback capability. To
change the outlet 2 for bearing lubrication, replace
closure plug with check valve (Fig. 3).
• On all pumps with previous serial numbers, never close
outlet 1.
Fig. 4 - Internal feedback of supplied lubricant, only on back-
side mounted SSV divider blocks
Check valves
* Install one complete check valve in each outlet port hole
which will be used, see Fig. 1 and 4.
* For feedlines (dia. 6x1.5 mm, 1/4“ I.D., provided in the
accessory kits) use check valves with standard collar and
knurled flange.
Fig. 3 -Check valve, push-in type
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x -Outlet quantity (single, A - Clamping ring (brass)
double, etc.) R - Return line borehole
1... 10 Outlet numbers
Fig. 6 - Installation of Zerk-
Locks with staking tool
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Note: To feed back unneeded lubricant quantities from bot-
tom - side mounted divider block to the reservoir, connect
unneeded outlet via feedline to plug 5 (Fig. 14) for external
return line.
Lubrication points
Installing Quicklinc fittings into lube points
(for metric size accessory kits only)
* Remove hydraulic lube fittings from lube points and
install appropriate Quicklinc-fittings into the bore holes of
the lube points.
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• All pumps with the back mouted SSV divider block,
starting from serial No. 998000100C/001 have the
cabability to feed back unused lubricant from closed
outlets directly to the reservoir internally (see R Fig. 4).
Note: The pumps with previous serial numbers have capabi-
lity to feed back the lubricant directly to the reservoir only
from even outlets. For instance on a SSV 6 devider block, the
outlets 2, 4, 6 are closed.
* To achieve this the outlet 2 should be closed with a
closure plug (see Fig. 2). For instance (see Fig. 4) the
lubricant from outlets 1, 2 and 4 will be internally feed
back to the reservoir, outlet 3 will have double amount
and outlet 6 will have single amout of lubricant.

Subject to modifications
Page Number 5 of 242.1B-38006-A99
QLS 301
Form 402865
InstallationandOperationInstructions
* Screw the Quicklinc fitting into the Zerk-Lock body and
tighten until parts resist further tightening, (about 1-1/2
turns).
• If the lines are not primed, prime all lubrication feed lines
before connecting them to the Zerk-Locks.
• Connect feed lines (dia. 6x1.5 mm, 1/4’’) from the check
valves directly to existing grease fittings using the Zerk-
Lock fittings included with the accessory kit.
Note: Push the end of the line firmly into the Quicklinc fitting
until it is fully seated in the body. The primed feed lines are
marked with white lines (Fig.8, 9) as an installation aid.
Fig. 7 - Screwing Quicklinc fitting into the Zerk-Lock body
Note: Quicklinc hex. is 12 mm. Zerk-Lock body hex is 1/2 ’’ .
* Move the Zerk-Lock and tube fitting from side to side on
the grease fitting to insure the Zerk-Lock is firmly seated.
Fig. 9 - Feed line insert into the fitting up to the next white mark
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• Cut the pressure plastic tube off at one of the white lines
before it is mounted. Then insert the plastic pressure
tube into the fitting up to the next white mark. This will
ensure a correct installation of the pressure plastic tube
in the threaded tube fitting.
Connection of Feed Lines • Measure, cut and route the feedlines included in the kit.
Avoid sharp bends of the plastic tubing and the moving
parts of the machine that could damage the lubrication
lines. Minimum bending radius is 50 mm(2 in).
• Secure the lubrication lines to the machine using nylon
ties, clamps or straps provided in the accessory kit.
Fig. 8 Feed line installed in the Quicklinc fitting
* Cut the fed line off at one of the white lines before it is
mounted.
* Then insert the feed line into the fitting up to the next
white mark.
• This will ensure a correct installation of the feed line in
the tube fitting.
Filling of reservoir
* Fill the reservoir with clean suitable lubricant.
* Expel all air from under follow plate. Make sure that the
follower plate seal moves above the vent hole to ensure
that all air pockets are vented.
Fig. 10 - Vent hole on reservoir 4204a99 Setting of lubrication cycle time interval
* Set the lubrication cycle time interval (see page 13).
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Page Number 6 of 24
QLS 301
Subject to modifications
2.1B-38006-A99 Form 402865
InstallationandOperationInstructions
Electrical Connecting Diagrams
Direct current (VDC)
Alternate current (VAC)
Electricalconnection
• Before starting, make sure that the electrical supply is off.
The device may not be connected or disconnected when
the power is on. The protective conductor must always be
connected. Take care that this line section is undamaged
and conforms to standards and the contacts are safe.
* Connect the electric wires according. to the following
electrical connecting diagrams.
Note: The protection IP6K9K (NEMA 4) is guaranteed when
the socket (x1, x2) is tightened on housing cover with flat
packing.
Fig. 11 - Electrical Connecting Diagram, direct current.
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Fig. 12 - Electrical Connecting Diagram, alternate current.
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Subject to modifications
Page Number 7 of 242.1B-38006-A99
QLS 301
Form 402865
InstallationandOperationInstructions
Pump models
Examples of part numbers P30100810111
P30162410151
P301 6 2 4 1 0 1 5 1
Pump
Forgrease..............................................P301
SSV Divider Block
External, SSV 6, SSV 8**.................................0
External, SSV 12, SSV 18**.............................1
SSV 6 (back)...................................................3
SSV 8 (bottom)................................................4
SSV 12............................................................6
SSV 18............................................................9
SSV Divider Block Position
None.................................................................0
Back.................................................................1
Bottom1.............................................................2
Operating Voltage
12 VDC.............................................................2
24 VDC.............................................................4
120 VAC*..........................................................6
230 VAC*..........................................................8
Reservoir/Low level control
1 l reservoir with low level control....................1
Dry Contacts
None...................................................................0
Yes.....................................................................1
Type of Plug Connector
Square-type, acc. to DIN 43650 type
of construction A................................................1
Electrical Connectors
Without socket, without cable.............................0
With socket, without cable*................................1
With socket, with cable, 10 m.............................5
With socket, with ADR cable, 10 m.....................6
Control p. c. b.
None....................................................................0
Monitored, 1cycle, SSV 12, SSV 18
Monitored, 1, 2, 3 cycles, SSV 6, SSV 8.............1
Example of an explained model number:
Pump model P30131810111 -Grease pump, SSV 6 block mounted on the back, 230 VAC, with low level and without dry contact.
* Note: 1. Standard 12 and 24 VDC pump models are shipped with 10 meter (30’) electrical cable.
2. Standard 120 and 230 VAC pump models are shipped without electrical cable (electrical connection 1 only)
** Note: For external divider block application only use the specific divider blocks SSV ... KNQLS.
On pump models without divider block there is not possible to close cycles without changes on the p. c. b.
1
Note: Do not use QLS 301 with SSV block in bottom mounting position for mobile applications. Dont install
the pump in areas exposed to shock.
Accessory Kits Inch Size Kits: Metric Size Kits:
SSV 6/8 part no. 550-36971-1 SSV 6/8 part no. 550-36970-1***
SSV 12 part no. 550-36971-2 SSV 12 part no. 550-36970-2 ***
SSV 18 part no. 550-36971-3 SSV 18 part no. 550-36970-3 ***
*** Lube fittings must be ordered separately
QLS 301 Selection Guide

Page Number 8 of 24
QLS 301
Subject to modifications
2.1B-38006-A99 Form 402865
InstallationandOperationInstructions
Description of QLS 301
•The QLS 301 is a complete compact lubrication system for
maximum of 18 lubrication points per cycle*.
*Note: More than 18 lubrication points are possible for appli-
cations with limited lubrication requirements. Contact Lincoln
Industrial Technical Sevice for additional information.
• The pump has three basic configurations:
- SSV divider block mounted on the back (see fig. 13)
- SSV divider block mounted on the bottom (see fig. 14)
- Pump without the SSV divider block attached.
• The pump with the SSV divider block mounted on the
bottom has the capability of using steel tubing as lubrica-
tion lines if necessary.
• Standard lubrication lines are high pressure plastic
tubing included in the pump installation kit for pumps
with the SSV divider block attached.
Note: Regardless of the SSV divider, mounting the operation
of the pump is the same.
• A signal from the pump timer starts the electric motor and
pumping element starts pumping the lubricant to the SSV
divider block.
• When all lubrication points have received lubricant, an
internal proximity switch turns the motor off, completing
one lubrication cycle.
• If pump does not complete the cycle within 15 minutes of
operation, alarm message “Er“ will be displayed as a
flashing light in the keypad window.
Fig. 13 - QLS 301 with back position of the SSV divider block
Fig 15. - QLS 301 unit
Operation of QLS 301
Fig. 14 - QLS 301 with bottom position of the SSV divider block
• The QLS 301 operates according to lube cycles (pause
and operating times).
• The pause time begins the cycle, then the operating time
occurs.
• A division of the lube points (option) via secondary
metering devices and one main divider block (SSV 6,
SSV 8) is possible only up to max. 18 points per cycle
(see * Note). In this case, the number of the cycles of the
main divider block must be set (see P 3 on page 13).
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1 - Proximity switch 3 - SSV divider block
2 - Control pin 4 - Nipple for external manual
lubrication (1/8’’)
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1 - Connecting block 4 - Nipple for external manual
2 - Manifold lubrication (1/8’’)
3 - SSV divider block 5 - Plug (1/8’’) for
external return line (R)
external pressure line (P)
1 - Low-level control 4 - Control unit
2 - Proximity switch 5 - Pump unit
3 - Keypad with display 6 - SSV 6, 8, 12, 18
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Subject to modifications
Page Number 9 of 242.1B-38006-A99
QLS 301
Form 402865
InstallationandOperationInstructions
Pressure relief valve
Fig. 16 - Pressure relief valve (cartridge) in housing
• The QLS 301 is protected with a pressure relief valve
(cartridge).
• The pressure relief valve limits the pressure build-up in
the QLS 301. It opens at an overpressure of 201 bar
(3000 psi).
• If the pressure relief valve is actuated, this indicates that
the system is malfunctioning. The lubricant flows back
into the reservoir (not visible).
• Upon expiration of the monitoring time of 15 minutes, the
pump switches off. The fault indication ”Er” is displayed
on the key pad of the pump. See ”Display mode” under
”Control unit”.
Pump Display Window
• Pump “On” is indicated on the display by an illuminated
decimal point (pause time) (fig. 17).
• Pump
“running” is indicated on the display by a rotating
light movement of the green display (operating time)(fig.
18).
• If the voltage supply is interrupted during the operating
time, the operating time starts again from the beginning
after switching on.
Fig. 18 - Green display (operating time)
Fig. 17 - Green decimal point (pause time)
• Additional lube cycle (Manual Lube)
- is initiated via the button (Fig. 19). Press the button for 2
seconds.
- can be initiated at any time, provided that the power
supply is applied.
Note: If a malfunction is present (flashing display), first ack-
nowledge this malfunction.
• If a fault signal (malfunction) is present, it will be cancel-
led after the system is operating properly.
Monitoring time/malfunction
Fig. 19 - Pushbutton for additional lubrication cycle
Fig. 20 - Display of a fault indication
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• If the cycle is not complete within 15 minutes (monitoring
time) after expiration of the pause time, the pump imme-
dately switches off.
• The fault indication “ Er ” (error) is displayed as a
flashing light (fig. 20). At the same time, a potential free
contact is available for the external fault indication (opti-
on).
• If a malfunction is present, the pump no longer switches
on automatically.

Page Number 10 of 24
QLS 301
Subject to modifications
2.1B-38006-A99 Form 402865
InstallationandOperationInstructions
• The metering of the lubricant occurs via the integrated
divider block (e. g. SSV 8, SSV 12 or SSV 18).
• When the reservoir is nearly empty the pump display
shows “LL” (low level).
• The follower plate (3) (Fig. 24) of the reservoir moves the
pin (2) with the magnet (3) ahead of the sensor on the
printed circuit board and initiates the low level signal.
• In this case, the pump is not switched off immediately.
The current lube cycle is completed. Upon expiration of
the pause time, the pump cannot be started again
automatically. The flashing display “LL” is indicated.
• Before filling the reservoir, press the button Fig. 21 for
acknowledging the low level indication.
• As soon as the lubricant reservoir is filled up, the “LL”
display is cancelled. The lube cycle resumes.
Acknowledging the low level indication
* By pressing the button (Fig.22), the flashing display “LL”
is changed into a continuous light.
Malfunction/low level indication
• If both indications occur at the same time, then both
displays “Er” and “LL” will flash.
Fig. 21 - Keypad with showing a malfunction
Fig. 22 - Acknowledging the malfunction
Fig. 23 - Display of a low-level control
Fig. 24 - Parts of low level control
1 - Magnet 3 - Follower plate
2 - Pin
Metering of the lubricant
• In this case, switch on the pump by pressing the button
for additional lube cycle, see Fig. 18. Acknowledge the
malfunction before doing so.
• When a malfunction is present, it can only be cancelled
by initiating an additional lube cycle and after a proper
lube cycle has been executed afterward.
• If the fault is still present after an additional lube cycle
has been initiated, the fault indication “Er” is displayed
again.
• The monitoring time starts at the same time as the
operating time. It is a fixed time of 15 minutes.
• If the voltage supply is interrupted during the monitoring
phase (operating time), the monitoring time starts from
the beginning after the pump is switched on again.
Acknowledging the malfunction
• On pressing the button (Fig.22 ), the flashing display “Er”
changes into a continuous light.
Monitoring relay
• The monitoring relay signals a low level condition or a
malfunction. In both cases, the monitoring relay will pick
up. The signal is available via a potential free contact.
The monitoring relay is released upon acknowledgement
of the fault. The flashing indication switches to conti-
nuous indication.
Models with Low-level control
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Fig. 25 -Bottom mounting position of divider block

Subject to modifications
Page Number 11 of 242.1B-38006-A99
QLS 301
Form 402865
InstallationandOperationInstructions
• As soon as voltage is applied to the pump, the key pad
is automatically in ”display mode”. The right-hand
decimal point is illuminated on the display.
• Normally, the display is dark. Only the functions (deci-
mal point, rotating segment display) or malfunctions (Er,
LL) are displayed.
•In the display mode
- The user receives information on functions and mal-
functions.
- A test display is made when the voltage is applied, all
segments and decimal points are illuminated for 2
seconds.
Note: If *EP* is displayed after the display test, this indicates
that the button or the key pad is defective.
- The right-hand decimal point (On/h) indicates the
available voltage supply during the pause time. As soon
as another message is displayed, the decimal point
turns off.
- The operating time is displayed as a rotating segment.
-“Er” is shown to indicate a malfunction
-“LL” is shown to indicate low level
(where applicable)
- The flashing display is changed into a continuous light
by pressing the button (acknowledging). To acknow-
ledge, press the button only briefly.
• Messages which have been acknowledged but have not
yet been remedied flash again after the pump is swit-
ched off and on again.
Setting and operation of the QLS 301
• Three possible modes of operation and settings can be
selected at the key pad:
- Display mode
- Operating mode
- Programming mode
Display mode
Fig. 26 - Display in display mode
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Page Number 12 of 24
QLS 301
Subject to modifications
2.1B-38006-A99 Form 402865
InstallationandOperationInstructions
Operating mode
Important:The operating mode is accessible only during
the pause time, and cannot be operated during the running
time (pump operating time).
• Precondition: when the voltage supply is applied, the
decimal point On/h is lit.
Operating option: initiating an additional lube cycle
* Press the button. The elapsed pause time is reset. The
operating time starts. A rotating segment is visible on
the display during the whole operation time.
Operating option: read information on how to set the
pause time and remaining pause time.
* Press the button.
Note: The following display sequence is shown twice and is
cancelled after 60 seconds. The change of display occurs
every two seconds. Example:
PP = 12h 30min
rP = 5 h 10 min
“PP” (set pause time)
12 . (hours)
. 30 (minutes)
“rP” (remain pause time)
5 . (hours)
. 10 (minutes)
occurs after second sequence.
Display press
after 2 sec.
after 2 sec.
after 2 sec.
after 2 sec.
after 2 sec.
after 60 sec.
Fig. 27 - Display in operating mode
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³2 sec
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³2 sec
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Subject to modifications
Page Number 13 of 242.1B-38006-A99
QLS 301
Form 402865
InstallationandOperationInstructions
Programming mode
Setting number of cycles P3 (Option)
Important: Settings are only possible in connection with
progressive divider block SSV 6 or SSV 8 (connected as
a main divider block).
* Press the button. The selection of “P3” (cycles) is
displayed.
* Factorysetting.......................................................1cycle
* Max........................................................................3cycles
* Press the button and program the number of cycles (2,
3) in accordance with the desired dosage.
Completing the programming
* Press the button. “P-”is displayed.
* There are two ways to complete the programming:
- by pressing the button,
or
- if the button is not pressed within 30 seconds, pro-
gramming mode is closed automatically.
Display press press
Fig. 28 - Display in programming mode
Programming options - Pause time:
P1 0 – 99 hours
P2 0 – 59 minutes
Min. pause time 20 minutes
Max. pause time 99 hours 59 minutes
Setting hours P1
* Settings are made in one direction: 0, 1, 2, 3, ..... 99 h
Button pressed once.......................increases by 1 hour
Button pressed continuously................quick sequence
The fields ‘’hour’’and ‘’minutes’’are indicated by a
decimal point on the right - hand for the hours and on
the left - hand for the minutes.
Setting minutes P2
* Settings are made in one direction: 0, 1, 2, 3....59
minutes
Button pressed once.......................increases by 1 minute
Button pressed continuously....................quick sequence
Note: The minimum pause time begins with 20 minutes.
When pause times < 20 minutes are programmed, the dis-
play automatically shows .20.
* To access to the programming mode, press both but-
tons at the same time ³ 4 seconds.
³4 sec ³4 sec
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Page Number 14 of 24
QLS 301
Subject to modifications
2.1B-38006-A99 Form 402865
InstallationandOperationInstructions
Maintenance
To fill reservoir
Fig.29 - Filling nipple for filling reservoir
Repair
Functional Test
Fig. 30 - Push button for an additional lubrication cycle
Maintenance, Repair and Tests
• Maintenance is essentially limited to refilling the reservoir
with clean lubricant as necessary. However, check
regularly whether the lubricant is being dispensed to all
the lubrication points.
• Also check the feed lines for damage and replace them, if
necessary.
Switch off the voltage supply for pumps 120 VAC and 230
VAC before servicing the pump.
• For repair work on the QLS 301 use only Lincoln Industri-
al original spare parts.
• Using non-Lincoln Industrial parts will void the pump
warranty.
Turn off the voltage supply for pumps 120 VAC and 230 VAC
before servicing the pump.
Important: To clean the system use petroleum spirit or petro-
leum. Do not use Tri, Per or similar solvents or polar or
organic solvents such as alcohol, methanol, acetone, etc.
Note: Whenever work is performed on the centralized lubri-
cation system, special attention should be paid to cleanli-
ness. Dirt will cause failure of the system.
• Fill the reservoir up to the ”Max.” mark via the filling nipple
Important! The grease must be free from impurities and
must not be liable to change its consistency over the course
of time.
Note: If the reservoir has been completely emptied, the pump
may require priming and a longer running time to reach the
full lubricant output. Therefore, initate additional lube cycles
manually.
* Press push button to initiate a
lubrication cycle.
Filling of the empty reservoir
• Make sure, that all air has been expelled from under the
follower plate after refilling the empty reservoir.
* The follower plate seal should clear the hole located on
the top of the reservoir. Small amount of grease should
be expelled to ensure expelling of air from under the
follower plate.
1 - Filling nipple 3 - Follower plate
2 - Vent hole
4222a99
4231a99
* By operating the drive motor without the reservoir instal-
led, there is a risk of injury by eccentric gear.

Subject to modifications
Page Number 15 of 242.1B-38006-A99
QLS 301
Form 402865
InstallationandOperationInstructions
Troubleshooting
Pump of the QLS 301 system
• Fault: pump motor doesn’t run
• Cause:
•Power supply interrupted. Green decimal point On/h on
display is not lit. * Check the voltage supply to the pump/
fuses. If necessary, eliminate the fault or
replace the fuses.
* Check the feed line from the fuses to the
plug of the pump and then to the printed
circuit board.
*Initiate an additional lube cycle. Check
voltage supply from the printed circuit
board to the motor.
* Replace printed circuit board.
* Replace housing with key pad.
• Remedy:
•Power supply from printed circuit board to motor inter-
rupted. Electric motor defective.
• Printed circuit board defective.
• Key pad or button is defective. “EP” display at the key
pad flashes.
• Fault: pump does not deliver lubricant
• Cause:
•Reservoir is almost empty. “LL”display at the key pad is
flashing.
• Pump lost prime and “Er” display at the key pad is
flashing.
•Air pockets in lubricant.
•Improper lubricant has been used.
•Suction hole of pump element clogged.
•Pump piston is worn.
•Check valve in pump element defective or clogged.
• Remedy:
* Fill up the reservoir with clean grease. Let the pump run
(initiate an additional lube cycle) until the lubricant
shows at all lube points.
Note: Dependent on the ambient temperature and/or sort of
lubricant output. Therefore, iniate several additional lube
cycles.
*Trigger an additional lubrication cycle. Lubricant must
dispense without air bubbles.
*Change the lubricant.
*Remove pump element. Check suction hole for foreign
particles. If there are any, remove them.
*Replace pump element.
*Replace pump element.
• The green rotating display indicates that the pump
operates properly.
4209a99

Page Number 16 of 24
QLS 301
Subject to modifications
2.1B-38006-A99 Form 402865
InstallationandOperationInstructions
Divider Block of the QLS 301
•Fault: Blockage in the downstream progressive system
•Remedy:
• Determine the cause of the blockage as described in
the following example and eliminate it.
* Let the pump run (refer to ”Initiating an additional lube
cycle”)
* Disconnect all feed lines of the divider block one after
the other. If grease shows under pressure (i. e. at outlet
3, Fig. 31) the blockage is located in the line of outlet 3
or in the connected bearing point.
* Pump through the blocked line or bearing point using a
hand pump.
Note: To check the individual outlets, leave all outlet discon-
nected for a while, since only one piston stroke is executed
with each motor revolution. Several strokes are required for
a full cycle of all divider blocks.
* Check pressure relief valve (Fig.16). Replace it, if
necessary.
• Divider valve is blocked
• Fault:Differing lubricant amounts at the lubrication point
• Cause:
•Lubricant metering not correct.
•Setting of the pause time incorrect.
• Remedy:
*Check the lubricant metering acc. to the lubrication
chart.
*Check time setting.
* Replace the divider block or clean it as follows.
* Remove all threaded tube fittings.
* Unscrew the piston closure plugs.
* Remove the piston, if possible, with a soft mandrel
(smaller than ø 6 mm, 0.24 in).
Important: The pistons are individually fitted in the bore ho-
les of the divider block. After removing the pistons, mark
them in order to reinstall them in the right direction and po-
sition. They may not be interchanged.
* Thoroughly clean the divider block body in a grease-
solving detergent and dry them out with compressed air.
* Clean through the material passages (ø 1.5 mm, 0.59
in) at the thread ends of the piston bore holes using of a
pin.
* Clean the divider block once more and dry it thoroughly.
* Reassemble the divider block.
A - pressure relief valve
B - pump
C - SSV 12 divider block
D - feed lines
Fig. 31 - Example of a QLS 301
•Cause:
• Bearings, lines or divider block clogged
• Mounting position of divider block : bottom
- In the case of the divider block SSV 8,12 and 18 the
outlet ports 1 and/or 2 are closed.
• Mounting position of divider block : back-side, until
preserial no 99800006711/004 and serial no
998000099C/001
- In the case of the divider block SSV 6, 12 and SSV 18
the outlet 1on the odd side is closed.
The fault can be identified as follows:
a) Fault indication “Er” flashing on the key pad
display.
b) The indicator pin mounted on the divider block
piston does not move.
4232a99

Subject to modifications
Page Number 17 of 242.1B-38006-A99
QLS 301
Form 402865
InstallationandOperationInstructions
Technical Data
• The printed circuit boards for Direct Current DC:
- are EMV regulation for on-road vehicles acc. EN 40839
parts 1, 3 and 4
- the vehicle guide line 95/245/EC
Time setting
Factory setting
Pausetime...............................................................6 hours/cycle
Lubrication cycle time ............................... 20 min. to 100 hrs
...........................................................increment 1 minute
Numbers of cycles, general ................................................. 1
with SSV 6, 8 divider block.......1, 2 or 3 cycles are possible
Timer memory .................................indefinite over EEPROM
Operating temperature ..... -25° C to 70° C (-10° F to 160° F)
Maximum operating pressure
pump model without divider block .......205 bar (3,000 psig)
Number of outlets ..............................................6, 8, 12 or 18
Output per outlet and cycle ...........approx.0.2 cm³ (0.012 in³)
Reservoir capacity ............................................. 1.0 L (61 in³)
Lubricant ............................................... up to NLGI 2 Grease
Weight (average)......................................... 5.7 kg. (12.5 lbs)
Protection ....................................................IP6K9K(NEMA 4)
Reverse polarity protection:
The operating voltage inlets are protected against reverse
polarity
Electrical Data AC (Alternate Current)
Operating voltage..................................... 120/60 Hz +/- 10 %
Operating current .............................................................1.0A
Operating voltage....................... 230 VAC;50/60 Hz+/- 10 %
Operating current .............................................................0.5A
Electrical Data DC (Direct Current)
Operating voltage..................................... 12 V - 20 %/+ 30 %
Operating current .............................................................2.0A
Operating voltage.................................. 24 V - 20 %/ + 30 %
Operating current .............................................................1.0A
Residual ripple in relation
to the operating voltage .....................± 5% acc. to DIN 41755
Note: The pump motor is suitable for intermittent operation
only
Electric motor to housing....................................3 Nm (2.5 lb-ft)
Pump element in housing............................25 Nm ( 19.0 lb-ft)
.
Lines
Plastic tube (dia. 6x1.5 mm; 1/4 in.)
Min. bending radius................................................50cm (2 in.)
Bursting pressure
at 20° C ( 70°F)............................ approx. 210 bar (3050 psi )
Min. temperature...................................................-25°C(-10°F)
Closure plug (piston) in divider block ............18 Nm (13.5 lb-ft)
Closure plug (outlets) in divider block ........... 15 Nm (11.0 lb-ft)
Outlet fitting in divider block
screw-type .................................................17 Nm (12.5 lb-ft)
push-in type .................................................12 Nm (9.0 lb-ft)
Compression nut onto outlet fitting, screw-type
plastic tube ..................................................10 Nm (7.5 lb-ft)
steel tube.....................................................11 Nm (8.0 lb-ft)
Indicator pin in divider block ..........................18 Nm (13.5 lb-ft)
Mounting of the divider block ...........................10 Nm (8.0 lb-ft)
Tightening Torques
Relay for Malfunction
Potential-free outlet for malfunction/low level option
Switching voltage.................................max.230VAC/125VDC
Switching current (resistive)...................................................2A
Switching capacity...................................................460VA/80W
Note: All datas are depending on operating voltage, ambi-
ent temperature and max. operating pressure.
Pump
Divider block, accessories
QLS 301, general

Page Number 18 of 24
QLS 301
Subject to modifications
2.1B-38006-A99 Form 402865
InstallationandOperationInstructions
Dimensions
QLS 301
Number of Outlets Dimensions A in mm (in.)
8 75 (2.95)
12 105 (4.13)
18 150 (5.90)
4234a99
Fig.32- Dimensions of QLS 301
2012a95
Number of Outlets Dimensions A in mm (in.)
6 60 (2.36)
12 105 (4.13)
18 150 (5.90)
4233a99
Fig.33- Dimensions of bottom mounted SSV Divider Blocks
Fig.34- Dimensions of back mounted SSV Divider Blocks

Subject to modifications
Page Number 19 of 242.1B-38006-A99
QLS 301
Form 402865
InstallationandOperationInstructions
ServicePartsfor the QLS 301
QLS 301 with bottom mounted SSV Divider Block
4193a99
Fig 35 - QLS 301 with bottom mounted SSV Divider Block

Page Number 20 of 24
QLS 301
Subject to modifications
2.1B-38006-A99 Form 402865
InstallationandOperationInstructions
Parts list
Pos. Designation Kit Part Qty Part no.
1 Reservoir x 1 550-36979-2
2 Spring for follower
plate x 1 218-14172-6
3 Follower plate x 1 550-36979-3
4 Intermediate bottomx 1 450-24749-1
5 Eccentric gear x 1 550-36979-4
6 Shaft x 1 550-36979-1
7 Pressure relief
valve x 1 235-14343-1
8 Pump element,
assy dia. 6 mm x 1 650-28856-1
9 Sealing parts
for pump element x 1 550-36979-5
10 Housing with
low level control x 1 550-36981-3
Housing without
low level control x 1 550-36981-4
11 Housing cover
with low level control
for direct current
VDC, plug 1A1.0 x 1 550-36984-1
for direct current
VDC, plug 1+2A1.0 x 1 550-36984-2
Housing cover with
low level control
for alternate current
VAC, plug 1A1.0 x 1 550-36984-3
for alternate current
VAC, plug 1+2A1.0 x 1 550-36984-4
11.1 Socket 2 with 10 m cable,
for remote control x 1 664-36078-8
11.2 Socket, black
GMD-3011 x 2 236-13277-9
11.3 Flat packing x 2 236-13294-3
11.4 Appliance plug 2,
for remote control, VDC x 1 664-36968-6
Appliance plug 2,
for remote control, VAC x 1 664-36968-5
11.5 Appliance plug 1,
for power supplyl, VDC x 1 664-36968-4
Appliance plug 1,
for power supply, VAC x 1 664-36968-3
11.6 Socket 1 with 10 m cable,
for power supply x 1 664-36078-7
12 Proximity switch x 1 550-36980-1
13 Printed circuit board for 1 cycle
12/24 VDC x 1 550-36983-1
120 VAC x 1 550-36983-3
230 VAC x 1 550-36983-5
Printed circuit board for max. 3 cycles
12/24 VDC x 1 550-36983-2
120 VAC x 1 550-36983-4
230 VAC x 1 550-36983-6
14 Low level control x 1 550-36979-9
15 Motor, 12 VDC x 1 550-36982-1
Motor, 24 VDC x 1 550-36982-1
Motor,120 VAC x 1 550-36982-1
Motor,230 VAC x 1 550-36982-1
15.1 Motor connection VDC x 1 664-36968-2
15.2 Motor connection VAC x 1 664-36968-1
16 Hydraulic lube fitting,
STAR 1/8 cyl. x 1 251-14040-1
17 Adapter M 22x1.5
(o) x 1/8 in.(i) x 1 304-19619-1
18 O-ring dia. 5 x1.5 mm x 1 219-12222-2
19 Banjo bold x 1 226-13777-2
20 Sealing ring, aluminium x 2 226-13780-1
21 Manifold x 1 550-36979-6
22 Connecting block x 1 550-36979-7
23 Hydraulic lube fitting,
STAR 1/8 cyl. x 1 251-14040-1
24 SSV divider block
SSV 8 - K x 1 619-37586-1
SSV 12 - K x 1 619-37587-1
SSV 18 - K x 1 619-37588-1
25 Piston plug with
sealing for control pin x 1 519-32123-1
Sealing kit for QLS 301 1 550-36978-8
Pos. Designation Kit Part Qty Part no.