SKF Centro-Matic P653S Instruction Manual

User and maintenance instructions
Models - (CAT branded)* and ,  V
Electric operated Centro–Matic
pump PS
Date of issue January 
Form number 
Version *Indicates change

Contents
EC Declaration of Incorporation . . . . . . . . . . . . . . . . . . . . . . . . 
Explanation of signal words for safety . . . . . . . . . . . . . . . . . . . 
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Exclusion of liability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Regulations for prevention of accidents. . . . . . . . . . . . . . . . . . . . 
Operation, maintenance and repair . . . . . . . . . . . . . . . . . . . . . 
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Operation/maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Installation and maintenance of hydraulic hoses. . . . . . . . . . . . . 
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Appropriate use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
System operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Pump PS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Reservoir sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Electrical connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Pump element . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Pressure control/hold time/vent cycle . . . . . . . . . . . . . . . . . . . . . 
Vent cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Fill reservoir with grease . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Stirring paddle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Low–level control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Keypad and display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Factory settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Acknowledge fault signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Program pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Program mode: Pump with pressure switch . . . . . . . . . . . . . . . . 
Program mode: Pump with pressure transducer . . . . . . . . . . . . 
Refill and maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Pump cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Review of pump parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Wiring connections for  V PS pump . . . . . . . . . . . . 
Wiring connections for – V AC / Hz  pump . . 
Jumper settings for PS pump PCB. . . . . . . . . . . . . . . . . . . 
Centro-Matic system schematic with PS pump . . . . . . . . 
Lincoln list of lubricants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Dimensions PS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Illustrated parts breakdown . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Service parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 


EC Declaration of Incorporation
Manufacturer:
SKF Lubrication Systems Germany GmbH,
Walldorf facilities, Heinrich-Hertz-Str. -,
DE -  Walldorf,
Phone:  () -
Product: PS
Description: electrically driven pump to supply lubricant during
intermittent operation within a centralized lubrication system
Model(s): -*, ,  V
Year of construction: see type identification plate
complies with all basic requirements of the following directives at the
time when first being launched in the market.
Report No.’s: NA
The equipment indicated on this declaration complies with the
following directives:
Machinery Directive //EC
And was evaluated using the following harmonized EN standards:
//EU Electromagnetic compatibility
EN ISO :, DIN EN ISO  , DIN EN -
, DIN EN -- , DIN EN ISO  ,
DIN EN -- , DIN EN -- ,
DIN EN - , DIN EN -  Amendment 
Amendment  Amendment ,
European ROHS directive //EU
SKF declares under its sole responsibility that the
is in conformity with the Machinery Directive //EC.
In the case of modifications or alterations of the above mentioned
machine not authorized by the manufacturer, validity of this EC
declaration of conformity will cease. The person empowered to
assemble the technical documentation on behalf of the
manufacturer is the head of standardization;
see EC-representative‘s address.
Jüerge Kreutzkämper,
Manager R&D Germany
SKF Lubrication Business Unit
Stefan Schürmann
Manager R&D Hockenheim/Walldorf
SKF Lubrication Business Unit
Model PS pump models -*, 
*Indicates change


Explanation of signal
words for safety
NOTE
Emphasizes useful hints and
recommendations as well as
information to prevent property damage
and ensure efficient trouble-free
operation.
CAUTION
Indicates a dangerous situation that can
lead to light personal injury if
precautionary measures are ignored.
WARNING
Indicates a dangerous situation that
could lead to death or serious injury if
precautionary measures are ignored.
DANGER
Indicates a dangerous situation that will
lead to death or serious injury if
precautionary measures are ignored.
Safety
Read and carefully observe these installation
instructions before installing/operating/
troubleshooting assembly. Assembly must
be installed, maintained and repaired exclu-
sively by persons familiar with instructions.
Install assembly only after safety instruc-
tions and this guide have been read and are
completely understood.
Adequate personal protection must be
used to prevent splashing of material on skin
or in eyes.
Always disconnect power source (electri-
city, air or hydraulic) from pump when it is
not being used.
Equipment generates very high grease
pressure. Extreme caution should be used
when operating this equipment as material
leaks from loose or ruptured components
can inject fluid through skin and into body. If
any fluid appears to penetrate skin, seek
attention from a doctor immediately.
Do not treat injury as a simple cut. Tell
attending doctor exactly what type of fluid
was injected.
Any other use not in accordance with
instructions will result in loss of claim for
warranty or liability.
• Do not misuse, over-pressurize, modify
parts, use incompatible chemicals, fluids,
or use worn and/or damaged parts.
• Incorrect use may result in damage
to equipment caused by over or
under lurication.
• Do not exceed stated maximum
working pressure of pump or of lowest
rated component in your system.
• Always read and follow fluid manufactur-
er’s recommendations regarding fluid
compatibility, and use of protective
clothing and equipment.
• Pump should be mounted vertically
upright only.
• Install components of PS pump so
operator can always see low–level position
of pump reservoir.
• Each time reservoir has been refilled,
make sure pump is pumping lubricant.
• Failure to comply may result in personal
injury and/or damage to equipment.
Exclusion of liability
Manufacturer of PS pump will not accept
any liability for damages caused by:
• Lack of lubricant due to irregular refilling
of pump.
• Use of contaminated lubricants.
• Use of greases that are not or only
conditionally pumpable by PS pump.
• Inadequate disposal of used or contami-
nated lubricants and components that
have been in touch with lubricant.
• Unauthorized modification of system
components.
• Use of unapproved parts.
• Operation without adhering to minimum
pause time and respectively maximum
lubrication time († Table , page ).
Regulations for
prevention of
accidents
To prevent accidents, observe all city, state
and federal safety regulations of country
where product will be used.


WARNING
Depressurize all lubrication lines of
carrier unit before performing
maintenance or repair.
Failure to comply may result in death
or serious personal injury.
WARNING
Pump PS must be installed by
qualified personnel. Connection of
 V AC must be done according to
National Electrical code.
Disconnect and lock out incoming
power before installation or service
of pump.
Failure to comply may result in death
or serious personal injury.
WARNING
Do not exceed maximum specification
ratings († Table ). Failure to comply
may result in damage to component.
Failure to observe safety instructions,
(e. g. touching electrically charged parts
when pump is opened, or improper
handling of PS pump) may cause
death or serious personal injury.
CAUTION
Turn off power supply before filling
pump with lubricant on pumps that fill
from top.
Failure to comply may result in personal
injury or damage to component.
CAUTION
Never put hand into open reservoir
while pump is running. Risk of injury
exists with pumps being filled from
reservoir top.
Failure to comply may result in personal
injury or damage to component.
CAUTION
Do not use pump in potentially explosive
applications.
Failure to comply may result in personal
injury or damage to component.
CAUTION
Do not over fill reservoir. Extreme
pressure can cause reservoir to explode.
Failure to comply may result in personal
injury or damage to component.
Operation,
maintenance and
repair
Repair
Repair should only be performed by
authorized and instructed personnel familiar
with instructions.
Defective printed circuit boards should be
appropriately packed and returned to
factory.
Operation/maintenance
Pump PS:
• Must be refilled at regular intervals
with clean lubricant recommended
by manufacturer.
• Operate automatically; however, check
every two days to ensure lubricant is
pumped to all lubrication points.
Disposal
Waste (e.g. used oil, detergents, lubricants)
must be disposed of in accordance with
relevant environmental regulations.
Dispose of used or contaminated
lubricants as well as parts that were in touch
with lubricant according to legal regulations
pertaining to environmental protection.
Observe safety data sheets of lubricants used.


CAUTION
Hose lines must be installed and
maintained by persons familiar with
instructions to ensure operational safety
of PS pump.
Failure to comply may result in personal
injury or damage to component.
NOTE
Follow vehicle manufacturer installation
instructions regarding all drilling and
welding procedures (i.e. specified
minimum distances between holes and
upper/lower rim of frame or between
two holes).
NOTE
Route supply lines professionally. Firmly
bolt together any components subject to
pressure.
CAUTION
Always use supply line hose and fittings
appropriate for programmed/set system
pressure.
Failure to comply may result in
personal injury or damage to system
components.
Installation
• Any safety equipment already installed
on vehicle:
–should not be modified or made
ineffective
–should only be removed for purpose
of installing system
–must be replaced after removal
• Use only original Lincoln spare parts or
parts approved by Lincoln.
Installation and maintenance
of hydraulic hoses
Lubrication hose lines:
• Do not subject to torsion.
• Do not install twisted.
• Do not allow lines to rub against metal
components or edges.
• Always perform regular visual checks and
replace if worn and/or damaged
(at the latest  years after installation).
Pay attention to non–linear installations to
allow for larger bending radius as possible.
Avoid kinks. In constricted installation
conditions, use pipe elbow unions to avoid
danger of kinking behind hose socket.
Use high pressure hydraulic hose for
lubrication lines.


CAUTION
Do not operate pump in a way not in
accordance with instructions.
Do not operate with pump installed
incorrectly.
Failure to comply may result in
personal injury or damage to system
components.
Description
Electric Centro–Matic pump PS is
designed for automatic lubrication of
commercial vehicles, industrial, construction
and agricultural machines and wind
power plants.
PS pump is designed for single line (S)
parallel Centro–Matic type lubrication
systems. Pumps integrated design
includes all necessary components to
support Centro–Matic lubrication systems:
• Controller to program and monitor
lubrication cycle
• Choice of internal pressure switch or
internal pressure transducer
• Internal vent valve
• Three connected pumping elements
• External pressure relief valve
• Reservoir low–level control
• End of lubrication line pressure switch
or pressure transducer choice
• Contacts for remote monitoring
•  V or / V AC power supply
Pump can supply adequate lubricant to
bearings using SL–V, SL–V XL, SL–, SL–
and SL– injectors. Number of injectors
should be based on output of pump
being . in/minute.
Pump for / V AC power supply can
be installed in any stationary industrial type
of applications requiring lubrication for same
number of medium size bearings.
NOTE
Installations using SL– and SL–
Lincoln injectors can lubricate more
than  bearings.
Typical Centro–Matic system
schematic is shown on page .
Appropriate use
• PS pump is designed for intermittent
operation and is not suitable for continu-
ous operation.
• Pump is capable of supplying lubricants
up to NLGI . Refer to Lincoln list of
lubricants, page  for list of recom-
mended greases.
• Any other use not in accordance with
instructions will result in loss of claims for
warranty and liability.


) See list of approved and recommended lubricants (†page ). Contact Lincoln if lubricant is not in list.
) Lubricant output is measured at + °F (+ °C) and backpressure   psi ( bar). Different pressures, temperature and grease can change output results.
Table 
Specifications
Electrical data for V pump
Incoming voltage  V –%/+%
Maximum current  A
External fuse  A (time delay)
Reverse polarity protection Yes
Current draw with pump off  mA
Electrical data for V AC pump
Incoming voltage  to  V AC
Maximum current . A
Frequency  to  hz
Output from power supply  V at  A
External Fuse  A (time delay)
Common electrical data forV and V AC pump
Minimum count  count
Maximum count ,
Pause count increments  count
Maximum pumping time  minutes
Enclosure rating IP KK (NEMA X)
Rating for fault relay contact:
Switching voltage Maximum  V AC/ V AC/ V
Switching current Maximum  A inductive
Minimum switching current . mA
Pump PS
Operating pressure with:
–pressure switch   psi ( bar)
–pressure transducer   psi ( bar)
Transducer can be adjusted from   to   psi ( to  bar)
End of line pressure switch setting   psi ( bar) (not adjustable)
End of line pressure transducer setting   psi ( bar) (not adjustable)
End of line transducer vent pressure is factory preset at  psi ( bar). Pressure can be adjusted from  to   psi ( to  bar)
in  psi (, bar) increments.
Maximum distance using shielded wire for pressure transducer  ft ( m)
Operating temperature range for DC pumps – to + °F) (– to + °C) )
Operating temperature range forAC pumps  to  °F) ( to  °C) )
Number of outlets (see instructions) 
Lubricant Up to NLGI grade  )
Output . in/min
) (. cm/min) )
Reservoir sizes, L , ,  and 
Lubricant line connection size G /in
Pump elements K
Piston diameter /in ( mm)
Number of pumping elements (connected together) 
Tightening torques:
Install pump . lbf-ft ( Nm)
Electric motor on housing . lbf-ft ( Nm)
Pump element in housing . lbf-ft ( Nm)
Closure plug in housing . lbf-ft ( Nm)
Return line connector on housing . lbf-ft ( Nm)
Tie rods for  and  l reservoir . lbf-ft ( Nm)


Table  (continued)
Specifications (continued)
Weights
–l reservoir with  pump elements K, without pressure relief valve, empty
Pump PS without connecting cable . lb (. kg)
Pump PS version A . lb (. kg)
Pump PS version A . lb (. kg)
–l reservoir, standard
Pump PS without connecting cable . lb (. kg)
Pump PS version A . lb (. kg)
Pump PS version A . lb (. kg)
–l reservoir, standard
Pump PS without connecting cable . lb (. kg)
Pump PS version A . lb (. kg)
Pump PS version A . lb (. kg)
Weights above include following equipment:
Pump kit with three pump elements, pressure relief valve, grease filling . lbs (. kg)
Packing (cardboard box)
Attaching parts
Operating instructions
Installation
Use only high pressure   psi ( bar) minimum hydraulic hose for supply lines.
Use only hose connection fittings that are appropriate for programmed/pre–set system.


M
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2
3
4
5
6
7
8
9
10
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Item Description
 Reservoir
Top lid
 Stationary paddle
 Stirring paddle
 Mounting plate
 Pump elements
 Pump housing
 Refill grease fitting
 Keypad
 Pump outlet
 Relief valve
Fig. 
Single–line pump PS
Note: Low–level control
(† Fig.  and Fig. , page )
System operation
Overview
Only difference between models -*
and  is model -* comes with
reservoir one third full of NLGI  grease. This
manual will describe model -*.
Model -* initiates lube cycle on a
count pulse instead of time between lube
cycles. Model -* is set for one
count to start a lube cycle. This one count
feature allows customers machine controller
to initiate lube cycles. This one count is a
 V pulse lasting from  to  seconds.
Pump operates on  V .
Alarm contacts are set to open position.
When power is applied, alarm contacts will
close. If alarm condition occurs, alarm
contact will open.
Changing of programming parameters,
via keypad, is prohibited due to setting of
internal jumper pin. Refer to Jumper
settings for PS pump PCB, page .
On power up model will wait for  V
pulse before initiating lube cycle. If pump
was in lube cycle when power was turned off
it will start with lube cycle upon power up.
Pump PS
• Pump greases up to NLGI  (per
approved list) at temperatures from
– to + °F (– to + °C).
• Develop maximum pressure up to
  psi ( bar) with pressure
switch and up   psi ( bar) with
pressure transducer.
Reservoir sizes
•  l transparent plastic reservoir
•  l transparent plastic reservoir
•  l transparent plastic reservoir
•  l transparent plastic reservoir
Electrical connection
• For industrial / V AC applications
PS pumps are provided with -pole
square type connector. Electric cable is
provided by installer.
• For mobile applications PS pumps are
equipped with electric cable  ft ( m)
and –pole bayonet type connector.
CAUTION
Always use supply line hose and fittings
appropriate for programmed/set system
pressure.
Failure to comply may result in
personal injury or damage to system
components.
*Indicates change


Diagram 
Identification code PS pump
PS –  Y L BO– AC – A – AS
Pump model, basic
Reservoir size and configuration
 =  l, transparent plastic
 =  l, transparent plastic
 =  l, transparent plastic
 =  l, transparent plastic
X = grease pump
Y = oil pump
L = low-level control
BO = without follower
F = with follower
Power supply
 =  V DC
AC = – V; – Hz
Electrical cord and connections
 A DC:  ft ( m) cord,  conductors
 A DC:  ft ( m) cord,  conductors
 ft ( m) cord,  conductors with bayonet plug
for external pressure switch or transducer
 A DC:  ft ( m) cord,  connector
Pressure control, PCB setting
AS – AS = Pressure switch (see jumper setting table)
AS = Pressure switch, count control
Example:
PS-YLBO-AC-A-AS pump consists of the following:
• Four liter reservoir
• Low-level control
• Internal pressure transducer
•  ft ( m) power cord


) These pumps have a follower plate (for lubricating grease) or a float switch (for lubricating oil).
Table 
Jumper setting combinations – Centro–Matic pumps
Pump
combinations
Application: Industrial
(S) – o; Mobil (M) – x
Time (TC) or count
control (cc); TC – o;
CC – x
Number of pressure
switches or transducers.
o – one x – two
Low–level control;
NO – o; NC – x )
F fault relay; ()
switch to ground – x
F fault relay; ()
switch to
ground – x
Jumper setting (plugged –x, unplugged – o)
Pressure switch
AS o o o x x x
AS o o x x x x
AS o o o o x x
AS o o x o x x
AS x o o x x x
AS x o x x x x
AS x o o o x x
AS x o x o x x
AS o x o o x x
AS x x o x x x
AS x x o o x x
Pressure transducer
AS o o o x x x
AS o o x x x x
AS o o o o x x
AS o o x o x x
AS x o o x x x
AS x o x x x x
AS x o o o x x
AS x o x o x x
AS x x x o x x
AS o x x o x x
AS x x o o x x
AS x x o x x x
AS o x x x x x


1
2
3
4
1
6
7
2 in
(52 mm)
1.7 in
(43 mm)
2 in
(52 mm)
1.7 in
(43 mm)
1
6
7
Operation
Pump
Drive
• Pump housing consists of following
components:
–gear motor
–final gear drive
–three pumping elements connected
together by internal passages
–vent valve
Pump can be configured with internal
pressure switch or transducer.
• Gear motor shaft is connected to final
stage gear drive. Final gear has incorpo-
rated eccentric and cam to drive pumping
elements and to control internal vent valve
(† Fig. ).
• Vent valve is a two way normally closed
spring biased valve.
• Pressure switch is not adjustable and
preset to   psi ( bar).
• Pressure transducer is adjustable.
Factory setting is   psi ( bar).
Pressure setting of pressure transducer
can be adjusted from   to   psi
( to  bar) in  psi (. bar)
increments.
Lubrication cycle/
pressurization
• Motor turns cam () clockwise to start
lubrication cycle. As soon as pump
starts to operate, display rotating
segment is turning clockwise also
(† Fig. , page ). Maximum time
to build preset pressure is  minutes.
If pump does not build preset pressure,
fault signal E or E will appear on display.
• Vent valve () is normally closed and stays
closed during lubrication cycle, preventing
lubricant flow back to reservoir († Fig. ).
• Output of three pump elements ()
(† Fig. ) is combined by internal
passages.
• Eccentric drives pump elements to pump
lubricant from reservoir and build line
pressure.
• Cam () will keep vent valve () closed.
• Supply line can be connected to any pump
element outlets. Remaining two pump
element outlets should be plugged.
Fig. 
Disassembled pump housing
(view from bottom)
Fig. 
Idle run of switch joint on venting element
Item Description
Venting element
 Motor
 Integrated pressure switch
 Pump elements with integrated
lubrication lines
Item Description
Inactive venting element
 Switch joint
 Cam (driven clockwise by the motor)
Fig. 
Activated vent cycle diagram
Item Description
Activated venting element
 Activated vent lever
 Cam (driven counter-clockwise
by motor)


min h
min h
min h
1
1.2
1.1
8
Fig. 
Display during braking application of
pump motor
Fig. 
Display during change of moving direction
of pump motor
Fig. 
Rotating segmented display during
venting (counter-clockwise)
Fig. 
Venting in vent valve
Item Description
Venting element
. Inlet hole
. Outlet hole
Plunger, venting


A532
1234
123 4
Pump element
• Pump element († Fig.  and Fig. ) is a
single stroke spring biased pump. Motor
drives eccentric (). Eccentric is in constant
contact with plunger ().
• Compression spring () is pushing
plunger () to open lubricant passage
to create vacuum to prime pump with
lubricant from reservoir. Check valve ()
is closed to isolate supply lines of system.
• Eccentric () is pushing plunger () in
opposite direction to pump lubricant,
developing operating pressure. Check
valve () is open to pass lubricant
to supply lines.
• Body of pump element has lateral
outlet () († Fig. ) for lubricant
crossporting to internal material
passages to combine outlet of all
three pump elements.
• Any of the three elements can be
used as pump outlet. Remaining
two elements should be closed with
plug (A) († Fig. ).
NOTE
Use only pump elements designed for
operation in PS pump. No other
pump elements should be used. See
Service parts, page  for correct
pump element part number.
Fig. 
Item Description
AClosure plug (connection G /in. for main line)
 Piston
 Spring
 Lateral outlet for lubricant crossporting
Fig. 
Fig. 
Pump element Z for internal lubricant crossporting
Item Description
 Eccentric
 Plunger
Compression spring
 Check valve
Item Description
 Eccentric
 Plunger
Compression spring
 Check valve


Pressure control/
hold time/vent cycle
Pump with internal pressure
switch only
Internal pressure switch closes at
  psi ( bar) and opens at
  psi ( bar).
After pump starts a lubrication cycle,
motor stops when pressure at pump reaches
preset pressure of   psi ( bar).
Pumpgoes through two holding periods:
H and H.
Holding time (H)
• Internal pressure switch must stay closed
for  consecutive seconds before going to
H. If internal pressure switch opens dur-
ing the  seconds, pump restarts and
runs until internal pressure switch closes.
Holding time (H) – will last for
 seconds
• At end of  seconds, if internal pressure
switch is closed, pump begins vent cycle.
• If at end of  seconds internal pressure
switch is open, pump restarts and runs
until internal pressure switch closes.
When it closes, vent cycle takes place.
• If at end of  seconds internal pressure
switch is closed, but during H hold time
internal pressure switch did open, pump
restarts and pumps for  seconds before
vent cycle begins.
Possible faults
• E Fault – failure to build pressure at
pump within allotted  minutes of
pumping time.
• E Fault – failure to vent at pump.
Internal pressure switch has  seconds
to open when motor reverses to locate
vent position.
Pump with internal and
external pressure switch
Internal pressure switch closes at
  psi ( bar) and opens at
  psi ( bar). External pressure switch
closes at   psi ( bar) and opens at
  psi ( bar).
After pump starts lubrication cycle, motor
stops when pressure at pump reaches preset
pressure of   psi ( bar). Pump can
go through three holding periods: H, H
and H.
Holding time (H)
• Internal pressure switch must stay closed
for  consecutive seconds before going
to H. If internal pressure switch opens
during  seconds, pump restarts and
runs until internal pressure switch closes.
Holding time (H) – lasts for
 seconds
• At end of H, if internal pressure switch
is closed and external pressure switch is
closed, pump begins vent cycle.
• At end of H, if internal pressure switch
is open or both internal and external
pressure switches are open, H appears
on display. Pump turns on again and
pumps until internal pressure switch is
closed. When both internal and external
pressure switches are closed, vent cycle
takes place.
• If at end of H internal pressure switch is
closed but external pressure switch is
open, pump turns on for  seconds and
then stops and waits until external
pressure switch closes. H appears on
display. When both internal and external
pressure switches are closed, vent cycle
takes place.
Holding time (H)
• Holding time H remains until both
internal and external pressure switches
are closed and then vent cycle takes place.
If both pressure switches do not close
within allotted pumping time of  min-
utes, alarm occurs. If internal pressure
switch opens during H, it repumps until
internal pressure switch closes.
Possible faults
• E Fault – failure to build pressure at
pump within allotted  minutes of
pumping time.
• E Fault – failure to build pressure at end
of supply line.
• E Fault – failure to vent at pump.
Internal pressure switch has  seconds to
open when motor reverses to locate
vent position.
• E Fault – failure to vent at end of supply
line. External pressure switch must be
open before next lube cycle takes place.


Pump with internal pressure
transducer only
Internal pressure transducer is factory
set to close at   psi ( bar).
Internal transducer can be adjusted from
  to   psi ( to  bar) using
keypad on pump. Adjustment is in
 psi (, bar) increments. Internal
pressure transducer is set to open at
 psi ( bar) below point where closed.
After pump starts lubrication cycle, motor
stops when pressure at pump reaches preset
pressure. Pump goes through two holding
periods: H and H. The following uses
factory setting of   psi ( bar) and
opening pressure of   psi ( bar).
Holding time (H)
• Internal pressure transducer must reach
  psi ( bar) and stay above
  psi ( bar) for  consecutive
seconds before going to H. If internal
pressure transducer drops below
  psi ( bar) during  seconds,
pump restarts and runs until internal
pressure transducer reaches
  psi ( bar).
Holding time (H) – lasts for
 seconds
• At end of  seconds, if internal pressure
transducer is above   psi ( bar)
pump begins vent cycle.
• If at end of  seconds internal pressure
transducer is below   psi ( bar),
pump restarts and runs until internal
pressure transducer reaches
  psi ( bar). When this
happens, vent cycle takes place.
• If at end of  seconds internal pressure
transducer is above   psi ( bar),
but during H hold time internal
pressure transducer dropped below
  psi ( bar), pump restarts
and pumps for  seconds before vent
cycle begins.
Possible faults
• E Fault – failure to build pressure at
pump within allotted  minutes of
pumping time.
• E Fault – failure to vent at pump.
Internal pressure switch has  seconds
to open when motor reverses to locate
vent position.
• E Fault – failure to vent at pump.
If at end of pause time pressure of
internal pressure transducer has not
dropped below  psi ( bar),
E fault occurs.
Pump with internal and
external pressure transducer
Internal pressure transducer is factory set
to close at   psi ( bar). Internal
transducer can be adjusted from
  to   psi ( to  bar) using
keypad on controller. Adjustment is in
 psi (. bar) increments. Internal
pressure transducer is set to open at
 psi ( bar) below point where closed.
External pressure transducer is set to
close at   psi ( bar). Opening point of
external pressure transducer is adjustable
from  to   psi ( to  bar). It is
factory set to open at  psi ( bar).
After pump starts lubrication cycle, motor
stops when pressure at pump reaches preset
pressure of   psi ( bar). Pump can
go through three holding periods: H, H
and H.
The following uses factory settings for
P and P.
Holding time (H)
• Internal pressure transducer must reach
  psi ( bar) and stay above
  psi ( bar) for  consecutive
seconds before going to H. If internal
pressure transducer drops below
  psi ( bar) during  seconds,
pump restarts and runs until
internal pressure transducer reaches
  psi ( bar).


Holding time (H) – lasts for
 seconds
• At end of H, if internal pressure
transducer is above   psi ( bar)
and external pressure transducer has
reached   psi ( bar), pump begins
vent cycle.
• At end of H, if internal pressure
transducer is below   psi ( bar)
or both internal pressure transducer is
below   psi ( bar) and external
pressure transducer has not reached
  psi ( bar), an H will appear on
display. Pump turns on again and pumps
until internal pressure transducer has
reached   psi ( bar). When
internal pressure transducer is above
  psi ( bar) and external
pressure transducer has reached
  psi ( bar), vent cycle
takes place.
• If at end of H internal pressure
transducer is above   psi ( bar)
but external pressure transducer has not
reached   psi ( bar), pump turns
on for  seconds and then stops and waits
until external pressure transducer reaches
  psi ( bar). H appears on display.
When internal pressure transducer is
above   psi ( bar) and external
pressure transducer has reached
  psi ( bar) vent cycle takes place.
Holding time (H)
• Holding time H remains until
internal pressure transducer is above
  psi ( bar) and external
pressure transducer has reached
  psi ( bar), and then
vent cycle takes place. If both
pressure transducers do not reach
preset settings within allotted pumping
time of  minutes, alarm will occur.
If internal pressure transducer drops
below   psi ( bar) during H,
it repumps until internal pressure
transducer reaches   psi ( bar).
Possible faults
• E Fault – failure to build pressure at
pump within allotted  minutes of
pumping time.
• E Fault – failure to build pressure at
end of supply line.
• E Fault – failure to vent at pump. Internal
pressure transducer has  seconds to
drop below   psi ( bar) when
motor reverses to locate vent position.
• E Fault – failure to vent at end of supply
line. External pressure transducer has to
drop below  psi ( bar) before next
lube cycle takes place.
Vent cycle
• After pump completes preset hold time
and pump maintains specified pressure,
controller initiates vent cycle. Vent cycle
lasts for ten seconds.
• Motor turns counter-clockwise to engage
and open internal vent valve.
Displays rotating segment is turning
counter-clockwise.
• Motor stops in position to hold
vent valve open. Hr will be displayed for
remainder of  seconds.
• Cam () († Fig. , page ) engages vent
lever () depressing vent valve plunger ()
(† Fig. , page ).This opens valve
passage of supply line to reservoir.
• Lubricant is flowing back to reservoir
venting pressure from system. Valve
stays open during pause time.
Fill reservoir with
grease
Use grease fitting () († Fig. , page )
to fill reservoir. Filling reservoir for first time
is critical to proper pump operation. It is
recommended to run motor by initiating
lubrication cycle during first reservoir fill.
Stirring paddle () of running motor will
help to evenly spread grease, minimizing
air pockets.
Stirring paddle
Stirring paddle () († Fig. , page )
is attached to motor and rotates during
lubrication cycle. Paddle works grease in
reservoir to make it more pumpable and at
same time pushes grease down into housing
and pumping elements to prevent cavitation.
Low–level control
Pump model PS is equipped with
low–level grease control as standard feature.


A
B
1 3
1
2 3
C
D
Fig. 
Switching parts of low–level control
for grease (reservoir filled)
Item Description
Pivot bracket with round magnet
 Control cam
A Inner orbit of round magnet
B Position of pivot bracket (LL not activated)
Fig. 
Switching parts of low–level control
for grease (reservoir empty)
Item Description
Pivot bracket with round magnet
 Low-level switch
 Control cam
C Outer orbit of the round magnet
D Position of pivot bracket (LL activated)
Reservoir full of grease
• Stirring paddle rotates clockwise during
lubrication cycle.
• Pivot bracket of stirring paddle (B)
(† Fig. ) is completely submerged
into grease and grease resistance to
paddle rotation guides bracket with
round magnet () inward to orbit (A).
• Control cam () guides pivot bracket with
magnet and outwards, in direction of
reservoir wall. Since reservoir is full,
grease resistance guides pivot bracket
inward to orbit (A) as soon as bracket
passes cam ().
• Magnet and low–level switch ()
(† Fig. ) are not aligned and
switch cannot be activated.
NOTE
Do not use switching parts to 
(† Fig.  and Fig. ) with fluid grease
or oil. Use float magnetic switch with
fluid grease or oil.
Reservoir empty of grease
• Control cam () († Fig. ) guides pivot
bracket with magnet () outward. Since
there is no grease resistance, bracket with
magnet () stays outward in orbit (C).
• Magnet () aligns with low–level switch
and activates LL indicator on pump
display.


1
2 3
Keypad and
display
Fig. 
PS membrane keypad
Item Description
 Display
Key for acknowledgment of fault
indications and changing
programming screens
 Key for triggering additional
lubrication cycle and for changing
programming values
Fig. 
Fig. 
Fig. 
NOTE
EP will briefly appear after display test.
If EP remains on after display test, this
indicates remote lube push-button is in
closed position or keypad push-button
is defective.
Test display of
membrane keypad
Test display is made when voltage is applied:
all segments and decimal points are
illuminated for  seconds.
When power is applied to pump, display
will indicate if pressure switch or pressure
transducer is connected to pump.
Example indicates internal pressure
switch. There are four possibilities:
• S– Internal pressure switch
• T– Internal pressure transducer
• TT – Internal and external pressure
transducer (must be connected)
• SS – Internal and external pressure switch
(must be connected)
Fig. 
Green segment right, power supply on
Fig. 
Green segment left on,  V DC pulse on
black wire
Fig. 
Green circulating illuminated segment,
lubricating time, pump is running
Operating mode
• Lower right-hand segment indicates
 V going to red wire in  conductor
cable († Fig. ).
• When there is a  V pulse on black
wire, lower left-hand segment is on
(† Fig. ).
• During lubricating time of pump,
circulating illuminated segment appears
in display window of membrane keypad
(† Fig. ).
• If power supply is interrupted during
lubricating time, operating time will
start at beginning after switching
power on again.
Segment
Segment
