Lincoln industrial CENTRO-MATIC 85438 User manual

Page
Section - C8 - 263C
4.1A-68010-D99 Form 403086
Air Operated Single Stroke Pumps with
Controls, Spring Return
Models for Fluids: 85 38, 85 39, 85 0, 85 1
Models for Grease: 85 2, 85 3, 85 , 85 5
Series B
CENTRO-MATIC®
MAR - 2001
(230 VAC Models only)

Page Number - 2
CENTRO-MATIC®
4.1A-68010-D99 Form 403086
Table of Contents
Page
Safety .............................................................................................2
Description....................................................................................2
Controller Components................................................................3
Control Operation..........................................................................4
Pump Operation............................................................................5
Installing the Pump.......................................................................5
Optional Devices..........................................................................5
Putting Pump into Operation........................................................6
Setting the imer/Controller.........................................................6
Maintenance and Repair..............................................................6
Dimensions...................................................................................9
Repair Parts List..........................................................................12
rouble Shooting........................................................................13
Safety
Read and carefully observe these operating instructions before
unpacking and operating the pump! The pump must be operated,
maintained and repaired exclusively by persons familiar with the
operating instructions. Local safety regulations regarding
installation, operation and maintenance must be followed.
Operate this pump only after safety instructions and this service
manual are fully understood.
Electrical Warning!
This symbol identifies the potential for a hazardous
electrical situation. f this warning is not followed,
a serious injury could occur.
Description
General Description
The pumps are air operated single stroke, spring return, positive
displacement units and should be used to deliver lubricant under
pressure to the metering devices (injectors). A three way solenoid
valve to control air input and an adjustable timer to control the
lubrication cycle are integrated into the pump body. The pump can be
used to deliver oil or grease depending upon the model per product
specification below. Pump models 85442, 85443, 85444 & 85445 for
grease applications have a special high volume refill fitting. All pump
models have a control panel with indicator lights. The pumps should
be installed upright for proper operation.
Appropriate Use
 All models are exclusively designed for use in Centralized
Lubrication Systems delivering lubricants.
 The maximum ratings given should not be exceeded.
 Any other use not in accordance with the instructions will
result in loss of claims for warranty and liability.
Warning!
This symbol identifies the potential for a
hazardous situation. f this warning is not
followed, a serious injury could occur.
Control Electrical Output
Model Pump Ratio Voltage Current Enclosure Per Stroke Pint Cu. In.
50/60 Hz Consumption Rating Cu.In.(cc) (Liter) (cc)
85438 120 VAC 1 1/4 (.6) 36 (600)
85439 Fluid 20:1 240 VAC 8.5 VA NEMA12 .450 (7.4)
85440 120 VAC 4 1/4 (2.0) 123 (2000
)
85441 240 VAC Lb.(kg) Cu.In.(cc
)
85442 120 VAC 1 (.45) 30 (492)
85443 Grease 20:1 240 VAC 8.5 VA NEMA12 .450 (7.4)
85444 120 VAC 4 (1.8) 120 (1967
)
85445 240 VAC
Air Consumption Operating
Model Air Inlet Lubricant @100 P.S.I. Temp.
Outlet Min. Max. (6.8 bar) Range
85438 1/8" 1/4" 20 150 .15 SCF -10° F
85439 NPTF NPTF PSIG PSIG (4.0 l(n)) (-23° C)
85440 (Female) (Female) (1.4 Bar) (10.2 bar) Per stroke +150° F
85441 (+65° C)
85442 1/8" 1/4" 20 150 .15 SCF -10° F
85443 NPTF NPTF PSIG PSIG (4.0 l(n)) (-23° C)
85444 (Female) (Female) (1.4 bar) (10.2 bar) Per stroke +150°
85445 (+65° F)
Air Pressure
Reservoir Capacity
Product Specification

Page Number - 3
CENTRO-MATIC®
4.1A-68010-D99
Form 403086
Controller Components and Setting the
Controller
Dipswitch Identification - See Illustration 1
30 seconds or 10 seconds - Select the maximum amount of
On ime.
imer or Controller - Select imer Mode or
Controller Mode.
Hours or Minutes - Select the unit for the Off ime
Rotary Switch.
Memory Off or Memory On - Select memory feature.
Off Time Switch - See Illustration 1
Using the Rotary Switch you can select .5, 1, 2, 4, 8, 15, 24
or 30. he units are either minutes or hours as determined
by the dipswitch setting.
Enclosure Cover - See Illustration 1
Green LED - Indicates that power is applied to the
controller.
Green LED - Indicates that the pump is on.
Red LED - Indicates an alarm condition.
Manual Lube - Pressing will initiate a lube cycle.
Illustration 1
MEMORY FEATURE
he memory feature will work as follows: ©
Dipswitch set to Memory Off  Will result in a lube cycle
each time power is turned on. Lube cycle will start at the
beginning of the on time setting.
Dipswitch set to Memory On
1. Power is turned off during the off time (time between
lube cycles). When turning power back on will cause the
lube cycle to continue from the point of interruption.
2. Power is turned off during the on time or pumping time.
urning power back on will cause the lube cycle to start
at the beginning of the on time setting.
© Indicates change
Electrical Shock Hazzard.
urn off and lock out power
before opening enclosure.

Page Number - 4
CENTRO-MATIC®
4.1A-68010-D99 Form 403086
1
23
4
6
7
8
9
10
11
12
13
14
5
15
16
17
18
19
20
Control Operation (See Illustration 1 for
operating controls description.)
Timer Mode
 When the Mode Switch is set to Timer the pump will deliver
lubricant at timed intervals as set on the rotary switch, and Units
switch setting.
 The rotary switch on the timer/controller board sets the time
between lube events (Off time).
 A low-level switch may also be added to indicate a low lubricant
level in the reservoir.
 When a low level condition is detected the Alarm L.E.D. will light,
alarm contacts connected to terminals 5 & 6 will close, and the
lubrication sequence will stop.
 The pump assembly will remain in the alarm mode until the reservoir
is refilled or the Manual Lu e button is pressed.
 Pressing the Manual Lu e button will always initiate a lube event.
Illustration 2
1. Ball Check
2. Check Packing
3. Lube Outlet 1/4 NPTF
4. Filler Cap
5. Lubricant Strainer
6. Drain Plug
7. Timer Board
8. Solenoid Valve
9. Air Piston
10. Piston Spring
ontroller Mode
 When the Mode Switch is set to Controller the pump will operate
as in the Timer Mode, with pressure monitoring capabilities added.
 A pressure switch must be installed in the supply line.
 The pressure switch will reset the controller when set pressure is
detected.
The unit will initiate an alarm when the pump fails to develop
sufficient pressure to actuate the pressure switch within the On
Time setting.
 Either a low-level condition or a low-pressure condition will cause
the unit to go into alarm.
 When an alarm condition is detected the Alarm L.E.D. will light,
alarm contacts connected to terminals 5 & 6 will close, and the
lubrication sequence will stop.
 The pump assembly will remain in the alarm mode until the cause of
the fault is corrected or the Manual Lu e button is pressed.
 Pressing the Manual Lu e button will always initiate a lube event.
11. Air Cylinder
12. Bushing & Plunger
13. Check & Valve Assy
14. Reservoir Tube
15. Ball Stop Adjustment
16. Lube Outlet 1/4 NPTF
17. Air Vent Both Sides
18. Follower Spring
19. Follower Assy
20. Filler Fitting
Illustration 2

Page Number -
CENTRO-MATIC®
4.1A-68010-D99
Form 403086
2 1
7
6
5
4
3
Installing the Pump
(See Illustrations & 5)
 Pump must be mounted in a vertical position.
 Mount to an even, stable, & solid surface.
 Mount with 3/8" [10mm] screws. (2 mounting slots provided on
back of air cylinder.)
 Mount in area away from dust, dirt and moisture. (Pumps are not
designed for wash down environments or for outside weather
conditions.)
 Allow sufficient space for servicing, filling, and operating the pump.
 Mount in an area where the pump can be observed for monitoring
lubricant level and pump operation, unless auxiliary-monitoring
equipment is installed.
Wiring Diagram
Electrical Connections
(See Wiring Diagram)
 A terminal wiring diagram is located on the back side of the key
pad assembly.
 One 1/2" conduit opening is provided on the bottom side of the
timer/controller enclosure. An additional 1/2" conduit knock out
is located adjacent to the opening.
 All wiring and fusing is to be in accordance with the National
Electric Code regulations of the regulating agency where the unit is
to be installed.
Optional Devices
Pressure Switch
 Model 69630 pressure switch should be installed in the supply line
to the injectors.
 The pressure switch must be wired normally open with
connections to low voltage terminals 3 & 4. See Wiring Diagram.
 The mode switch on the timer/controller board must be set for
Controller operation for the pressure switch to be effective.
 The pressure switch should be adjusted to a pressure high
enough to insure proper system operation.
 Switch ampacity: 1 MA at 5 VDC.
Pump Operation (see Illustration 2)
 When a lube cycle is initiated by the timer/controller, the 3-way
solenoid valve is energized allowing compressed air to enter the
bottom of the air cylinder, which moves the piston with the plunger
upward.
 When the pump "On" time expires, the solenoid valve is de-
energized cutting off the flow of air to the air cylinder, and relieving
the air pressure in the cylinder. The piston spring moves the piston
and plunger downward. n its extreme down position, the plunger
has retracted below the bushing port, permitting lubricant to flow
into the bushing cavity.
 Lubricant pressure from the supply line is allowed to vent back
through the ball check, into the bushing cavity thus allowing the
injectors to reset.
Wiring Diagram
1. L1
2. L2
3. Air Solenoid Valve.
4.Optional Alarm wired by customer.
5. Keypad with indicator lights and manual
lube push button.
6. Optional Low Level Switch wired by
customer.
7. Optional Pressure Switch wired by
customer.

Page Number - 6
CENTRO-MATIC®
4.1A-68010-D99 Form 403086
Low Level Switch
 Use low level switch 83696 with models 85440 and 85441. (A low
level switch is not available for models 85438 and 85439.)
 Use low level switch 83671 with models 85444 and 85445. (A low
level switch is not available for models 85442 and 85443.)
 The low level switch is to be wired Normally Open with
connections to low voltage terminals 1 & 2. See Wiring Diagram.
 When the low level switch closes, an alarm will be initiated.
 The low level option can be used in either the Timer or Controller
mode.
 Switch Ampacity: 1 MA at 5 VDC.
Alarm ontacts
 Relay contacts are provided on the timer/controller board for
connecting an external alarm device. These contacts may be used
for a light, horn, or another warning device, or they may be used for
machine shut down in the event of a lube failure.
 The alarm is to be connected to terminals 5 & 6, see Wiring Diagram.
 The contacts will close on a fault condition.
 Contact ratings: 2 Amps inductive load at 30 VDC, 120 VAC and 250
VAC. Do not exceed ratings.
Putting Pump Into Operation
Filling Fluid Reservoirs
 The transparent lubricant reservoir is filled with oil through the filler
cap at the top of the reservoir.
 The lubricant strainer should be removed from the filler cap and
cleaned periodically before filling.
Filling Grease Reservoirs
 Use Manual Filler Pump 81834 to fill the reservoir through the filler
fitting in the pump body.
 Attach the filler coupler on the delivery hose to the filler fitting.
Stroke the filler pump handle until lubricant seepage is noted at the
air vent holes in the reservoir (see illus. 2). Note that the lower edge
of the follower must rise above the vent holes to expel entrapped air
from the lubricant.
Warning! When filling the reservoir, caution should
be used as extreme pressure can cause damage to
the reservoir and follower assembly.
Priming Supply & Feed Lines
 Prime lines with lubricant to expel air for the proper operation of the
pump and system.
 Manual lube button can be used to prime the supply lines.
Setting The Timer/Controller
Warning! Electrical shock hazard. Disconnect and
lock out all power to the pump unit before removing
the keypad of the timer compartment.
 Remove four Phillips head screws holding the keypad to the front
of the timer compartment.
 Set the toggle switch settings as required for Memory, Units,
Mode of operation, & On Time. See llustration 1.
 Set the rotary switch for the required pump cycle times (off time)
by pointing the indicator or slot to the time settings printed on the
circuit board around the switch.
 nstall keypad by carefully folding the ribbon cable back across the
timer board, taking care not to pinch the cable between the keypad
and front face of the enclosure.
 Secure with four Phillips head screws.
Maintenance & Repair
General Maintenance
 Good housekeeping will go a long way in keeping a lubrication
system running without problems for many years of use.
 Keep area around pump clean. Clean off filling area prior to filling
reservoir. Clean area around filler after filling. Lubricants will
attract dirt like a magnet.
 Keep lubricants clean and free of dirt and debris. Use filtered
lubricants to refill reservoirs.
In ase of Trouble
(See Trouble Shooting hart Page 13)
 Problem areas can be broken down into 3 areas: electrical,
pneumatic, and hydraulic.
 Use the Trou le Shooting Charts to determine where to look if
problems occur.
 See the sections below for replacement and repair of specific
areas of the pump and control.
 Each part is identified with a number keyed to the matching part on
the exploded illustrations.
 When required, tool sizes are also specified in each step.
 Pay particular attention to the Warning and Caution statements
to prevent personal injury and possible damage to pump
components.
 Do not use solvents on acrylic reservoir.
Timer/ ontroller Replacement
(See Illustration 3)
Warning! Electrical shock hazard. Disconnect and
lock out all power to the pump unit before removing
the keypad of the timer compartment.
(Note: Replacement of timer/controller board or keypad does not
require the removal of the pump assembly from the mounting
surface.)
1. Turn off the air and power supply to the pump unit.
2. Remove the keypad (6) from the face of the pump enclosure, by
removing the four Phillips head screws (2).
3. Disconnect the ribbon cable connection from the keypad (6) by
gently pulling the plug from the timer controller board (4).
4. Disconnect the wire connections from the wire terminals on the
timer/controller board (4). Note where each wire is connected on
the terminal strips.
5. Remove the timer/controller board (4) by removing the four Phillips
head screws (5).
6. Reassembly is the reverse of the above procedure.

Page Number - 7
CENTRO-MATIC®
4.1A-68010-D99
Form 403086
7. Be sure that all wires are connected to the correct locations on
the terminal strips.
8. Connect the ribbon cable plug from the keypad (6) to the mating
plug on the timer/controller board (4). The plug should be plugged
into the timer/controller board so that the ribbon cable has no
twist in it; it must be parallel to the face of the enclosure when the
keypad is installed.
9. When reinstalling the keypad (6), be sure that the ribbon cable is
gently folded into the enclosure behind the keypad, and not
pinched between the keypad and enclosure.
Solenoid Valve Replacement
(See Illustration 3)
Warning! Electical shock hazard. Disconnect and
lockout all power to the pump unit before removing
the keypad of the timer compartment.
(Note: Replacement of the solenoid valve does not require removal of
the pump assembly from the mounting surface)
1. Turn off the air and power supply to pump assembly.
2. See Timer/Controller Replacement, above, to remove the keypad
(6) and timer/controller board (4).
3. Disconnect air line from pump assembly. Remove any muffler or
connections from the exhaust port.
4. Remove the enclosure by removing two Phillips head screws (2)
from the bottom side of the enclosure (1).
5. As the enclosure is removed from the assembly, gently pull the
solenoid and green ground wires through the grommet (3) in the
enclosure back towards the solenoid valve.
6. Remove the solenoid valve (14) using a 3/32 allen wrench to
remove the two cap screws (15) holding it to the bottom of the air
cylinder (11). Do not lose the gasket (13) that is placed between
the valve and air cylinder (11).
7. When replacing the solenoid valve, make sure the solenoidvalve is
the correct part number and voltage as the valve to be replaced.
8. Reassemble in reverse of the above procedure. Take care in pulling
the solenoid and green ground wires through the grommet (3).
Oil Reservoir Service
(See Illustrations 3, 6 & 7)
(Note: Replacement of the reservoir tube does not require removal of
the pump assembly from the mounting surface)
1. Turn off the air supply to the pump assembly.
2. Turn off the power supply to the pump unit.
3. Remove lubricant from the lubricant reservoir. Oil pump reservoirs
may be drained by removing the drain plug (8) from the front of the
pump unit with a 9/16 wrench.
4. Clean off reservoir tube and area around reservoir to prevent
getting dirt into the lubrication system.
Warning! Failure to drain reservoir will result in
lubricant leakage out of reservoir when the nut (46)
securing the reservoir in place is removed.
5. Disconnect supply line from pump outlet.
6. Remove nut (46) from the top of the reservoir cap (44) using a
1-3/8 wrench.
7. Remove reservoir cap from top of reservoir.
8. Slide the reservoir tube off the pump over the center post.
9. Remove gasket (35) if necessary.
10. Reassemble in reverse of the above procedure.
11. Tighten nut (46) to 10 to 15 ft.-lbs. [1.4 to 2.1 kg-m].
Grease Reservoir Service
(See Illustrations 3, 8 & 9)
(Note: Replacement of the reservoir tube does not require removal of
the pump assembly from the mounting surface)
1. Turn off the air supply to the pump assembly.
2. Turn off the power supply to the pump unit.
3. Remove lubricant from the lubricant reservoir. Grease pumps
may be emptied by carefully removing the filler fitting (7) from
the unit with a 7/8 wrench. (Depending on how full the reservoir
is, the grease may flow out of the reservoir very rapidly.)
Warning! Failure to remove all lubricant from
reservoir could result in a high spring force from the
reservoir spring (43) and/or a rapid discharge of
grease when nut (46) is loosened or removed.
4. Clean off reservoir tube and area around reservoir to prevent
getting dirt into the lubrication system.
5. Disconnect supply line from pump outlet.
6. Remove nut (46) from top or reservoir cap (44) using a 1-3/8
wrench. Carefully hold reservoir cap (44) against any residual
spring force while removing nut (46).
7. Remove reservoir cap (44) from top of reservoir.
8. Holding the follower down with the follower spring (43), carefully
work the reservoir off of the follower, leaving the follower and
spring in place on the pump assembly.
9. Remove follower spring (43).
10. Remove follower assembly by sliding up to the threads in the
center tube, and then threading the follower assembly counter-
clock-wise over the threaded portion of the center tube. Do not
force or pull the follower off of the center tube or damage will
result to the o-ring (38 or 48) inside of follower bushing (39).
11. Remove gasket (35) if necessary.
12. Disassemble the follower assembly by removing retaining ring
(42), using external retaining ring pliers, from bushing (39).
Washers (40) and follower packing can now be removed
from bushing (39). Remove o-ring (38 or 48) from the nternal
groove in the inner hole of the bushing (39); use a pointed tool,
such as a pick to remove.
13. Reassemble in reverse of the above procedure with the following
hints:
14. When installing the follower assembly onto the center tube,
lubricate the center tube liberally with grease. Lubricate the
o-ring (38 or 48) and the inside of bushing (39) with grease.
Thread, turning clockwise, the follower assembly down over the
center rod threads. Do not force or drive with hammer, or o-ring
damage will result in leakage of lubricant around follower. Side
the follower assembly down to the bottom of the tube.
15. When installing the reservoir tube, lubricate the follower packing
lips (41) and the inside of the reservoir tube (36) with grease.
The reservoir tube will have two vent holes in the side wall of
the tube close to one end of the tube. The reservoir tube (36)
must be placed on the pump with the vent holes near the upper

Page Number - 8
CENTRO-MATIC®
4.1A-68010-D99 Form 403086
11. Use a small flat blade screwdriver to remove ball stop (27), spring
(28), and ball (29) from inside of check body. Use a pick to
remove o-ring (30) and packing (31) from outside of check body
(32).
12. Loosen, but do not remove bushing & plunger (25) from cylinder
end (20).
13. Remove six screws (21) securing cylinder end (20) to air cylinder
(11), with a 3/8 wrench. Take care in removing the screws, the
piston spring (18) will be exerting force on the cylinder end (20).
Hold the cylinder end (20) by hand until all screws (21) are
removed, then carefully remove from air cylinder (11).
14. Finish removing bushing and plunger assembly (25) from cylinder
end. Note presence of gasket (23) and o-ring (22) in cylinder
end 20). Plunger may be removed from cylinder end (20) by
pulling out on the piston side of the cylinder end.
15. Remove o-ring (19) from cylinder end (20).
16. Remove plunger (25) from spring (18) by pulling spring tang out of
hole in plunger.
17. Remove air piston (17) from air cylinder (11) by gently tapping air
cylinder on soft surface until piston falls out.
18. Remove U-cup seal (16) from air piston (17).
19. Before reassembling, thoroughly clean all components in solvent.
Replace seals and gaskets with new ones supplied in the soft
parts kit. Lubricate the inside of the air cylinder (11) with grease.
Lubricate o-rings prior to assembly with mating bores.
20. Reassemble in the reverse order of disassembly.
21. When placing cylinder end (20) into air cylinder (11) be sure to
align U shaped opening on cylinder end (20) with the hole on air
cylinder (11) that connects with the lubricant fill/drain port (1/2
NPTF). This hole is on the front side of the air cylinder (11)
casting.
22. When assembling check valve with items 27, 28, 29, 30, 31, and
32, with 33 or 47, the check vent pressure must be set.
Assemble all items above. Using a pump with a gage inline, feed
oil at low pressure into pump outlet on end of item 33 or 47. Using
a small flat blade screw driver adjust ball stop (27) until the ball
check opens between 25 and 75 PS [1.7 and 5.1 bar] on the
gage. Note: Assemble tem 27 with non-hardening loctite or
stake threads after adjusting vent pressure.
side of the pump assembly. Place the reservoir tube down over
the follower packing (41), working the packing lips up into the
reservoir tube with your fingers until the entire follower
assembly is inside the reservoir.
16. Tighten nut (46) to 10 to 15 ft.-lbs. [1.4 to 2.1 kg-m].
Pump Tube and Air ylinder Service
(See Illustration 3, 6, 7, 8 & 9)
Warning! Elelctrical shock hazard. Disconnect and
lock out all power to the pump unit before removing
the keypad of the timer compartment.
(Note: Any servicing of the pump tube or air cylinder of the pump is
best performed after the pump assembly is removed from the mounting
surface.)
1. Turn off the air supply to the pump assembly.
2. Turn off the power supply to the pump assembly.
3. Remove pump from mounting surface.
4. When servicing the pump, keep work area clean and free of dirt to
prevent contamination of the lubrication system.
5. Remove timer/controller card and keypad following procedure in
Timer/Controller Replacement section of this manual.
6. Remove the enclosure and solenoid valve following the procedure
in the Solenoid Valve Replacement section of this manual.
7. Remove the reservoir assembly following the procedure in the Oil
or Grease Reservoir Service section of this manual.
8. Remove extension tube (34) on larger reservoirs. Use 1" wrench.
Do not grip on outside diameter of extension tube. Damage to
outside of tube may result in follower leakage or failure to move
smoothly on tube.
9. Remove outlet bushing (33) or (47) from bushing & plunger assy.
(25) with a 7/8 wrench, holding bushing & plunger assy. (25) with
a 3/4 wrench.
10. Remove check body (32), with 7/16 wrench, from outlet bushing
(33) or (47).
Illustration 3
All Models
1
2
3
6
10
11
12
13
14
15
4
5
51
7
8
9
52

Page Number - 9
CENTRO-MATIC®
4.1A-68010-D99
Form 403086
6.43
[163]
14.32
[364]
20.75
[527]
6
4.00
[102]
5.27
[133]
2
3
4
5
1
1.30
[33]
7.24
[184]
7
6.31
[160] 8
4.08
[104]
.37
[9]
5.12
[130]
2.46
[62]
2.31
[62]
Illustration 4
1. Lube Outlet 1/4 NPTF
2. Air nlet 1/8 NPTF
3. 1/2 Conduit Knock-out
4. 1/2 Conduit Opening
5. Air Exhaust 1/8 NPTF
6. 2 slots for 3/8 [10]
Mounting Screws
7. Models 85442 & 85443
(Grease)
8. Models 85438 & 85439
(Fluid)
7
8
1
2
3
4
5
6
5.58
[142]
12.02
[305]
6.43
[163]
4.00
[102]
5.25
[133]
7.24
[184]
6.31
[160]
4.08
[104]
.37
[9]
2.31
[59]
5.12
[130]
Illustration
1. Lube Outlet 1/4 NPTF
2. Air nlet 1/8 NPTF
3. 1/2 Conduit Knock-Out
4. 1/2 Conduit Opening
5. Air Exhaust 1/8 NPTF
6. 2 Slots for 3/8 [10]
Mounting Screws
7. Models 85444 & 85445
(Grease)
8. Models 85440 & 85441
(Fluid)
Illustration 5 Dimensions, Models 85440, 85441, 85444, 85445 (Dimensions in Inches[mm])
1.30
[33]
2.46
[62]
Illustration 4 Dimensions, Models 85438, 85439, 85442, 85443 (Dimensions in Inches[mm])

Page Number - 10
CENTRO-MATIC®
4.1A-68010-D99 Form 403086
Illustration 6
Models 85438, 85439
Illustration 7
Models 85440, 85441

Page Number - 11
CENTRO-MATIC®
4.1A-68010-D99
Form 403086
Illustration 9
Models 85444, 85445
Illustration 8
Models 85442, 85443

Page Number - 12
CENTRO-MATIC®
4.1A-68010-D99 Form 403086
Models
Item Quan. Description 8 438 8 439 8 440 8 441 8 442 8 443 8 444 8 44
1 1 imer Enclosure 252705 252705
2 2 8-32 apping Screw 250635 250635
3 1 Grommet 252462 252462
4 1 imer Board 250597 250598 250597 250598 250597 250598 250597 250598
5 4 6-32 apping Screw 252463 252463
6 1 Keypad Assy 252704 252704
7 1 Filler Fitting NA 92441
8 1 1/2 Pipe Plug 67117 NA
9 1 Retaining Ring * **
10 1 Filter * **
11 1 Air Cylinder 252484 252484
12 1 Grounding Screw 324100 324100
13 1 Solenoid Gasket(Nitrile) 252706 252706
14 1 3 Way Solenoid Valve 252700 252701 252700 252701 252700 252701 252700 252701
15 2 4-40 Cap Screw 252471 252471
16 1 U-Cup Seal (Nitrile) * **
17 1 Air Piston 247478 247478
18 1 Piston Return Spring 247483 247483
19 1 O-Ring (Nitrile) * **
20 1 Cylinder End 246174 246174
21 6 Screw 247477 247477
22 1 O-Ring (Nitrile) * **
23 1 Gasket (Copper) * **
24 1 Retaining Ring NA 66725 66725
25 1 Bushing & Plunger 247480 247484
26 1 Gasket * **
27 1 Ball Stop 14288 14288
28 1 Spring * **
29 1 Ball * **
30 1 O-Ring (Nitrile) * **
31 1 Packing (Nitrile) * **
32 1 Check Body 14290 14290
33 1 Outlet Check Bushing Ext. NA 92684 NA 92684
34 1 Extension ube NA 62493 NA 62493
35 1 Gasket (Nitrile) * **
36 1 Reservoir ube (Acrylic) 247202 247208 247209 247210
37 1 Washer NA NA 48382
38 1 O-Ring (Nitrile) NA NA **
39 1 Bushing NA 14341 14305
40 2 Washer NA 48467
41 1 Follower (Nitrile) NA **
42 1 Retaining Ring NA 69034
43 1 Follower Spring NA 55329 55270
44 1 Reservoir Cap 92180 45936
45 1 Plug Button 68797 68797
46 1 Nut 51083 51082 51083 51082
47 1 Bushing 14953 NA
48 1 O-Ring (Nitrile) NA ** N A
49 1 O-Ring (Nitrile) NA * NA **
50 1 Strainer 69128 NA
51 4 #8 apping Screw 252747 252747
52 1 Pad 252746 252746
Soft Parts Kit 252714 247623
* Included in 252714 Soft Parts Kit (Oil)
** Included in 247623 Soft Parts Kit (Grease)
Repair Parts List
©
© Indicates Change

Page Number - 13
CENTRO-MATIC®
4.1A-68010-D99
Form 403086
LUBE SYSTEMS WITH OUT ALARM MONITORING
CONDITION POSSIBLE CAUSE CORRECTIVE ACTION
Pump does not operate. No air to pump Turn onf or connect air supply to pump.
No electric power to pump. Turn on electric power to pump. Power L.E.D. should
light, Pump On L.E.D. shoueldlight when  anual Lube
is pressed.
Pump does not operate, Pump On L.E.D. Exhaust port blocked or restricted. Remove restriction.
lights, air pressure is present at air inlet. Pump Plunger or air piston movement restricted Disassemble and determine cause of failure.
or seized.
Solenoid valve failure. Replace solenoid valve.
Timer/Controller Board failure. Remove and replace.
Pump outlet blocked or restricted. Remove blockage or restriction.
Pump cycles when Pump On L.E.D. is off and Air line connected to exhaust port of Pump Connect air line to air inlet port of pump assembly.
does not cycle when Pump On L.E.D. is on.
Pump operated but system fails to cycle. Injector output adjustment set to minimum Adjust injector outputs to correct output setting for
output setting. system requirements.
Supply line leaking. Stop leak. Check all manifold plugs and injector
mounting gaskets.
Lubricant leaking past ball check (item 29) Disassemble outlet check and vent, inspect for
foreign particles. Clease or replace parts if worn or
damaged.
Vent pressure set too low. Adjust vent pressure to 25 to 75 PSI [1.7 TO 5.1 bar].
See Pump Tube and Air Cylinder Service section of this
manual.
Reservoir low on lubricant. Refill reservoir with lubricant.
Pump or supply line is air bound. Purge air from pump, supply line and injectors, see
Putting Pump into Operation section of this
manual.
System too large for pump output. Calculate system requirements per planning manual.
Pump dispenses lubricant, injector pins fail Restricted supply line Remove restriction.
to return. Vent pressure set too high. Adjust vent pressure to 25 to 75 PSI (1.7 to 5.1 bar),
see Pump Tube and Air Cyliner Service section of
this manual.
Pump dispenses lubricant, some injectors Pump On Time setting too short for Set Timer/Controller to longer Pump On time
fail to deliver lubricant. system or temperature. setting.
System too large for pump output. Calculate system requirements per planning manual.
Bearing points are over lubricated. Timer/Controller memroy mode is set to off. Turn on memory mode of Timer/Controller.
Injector output adjustment setting too high. Readjust to lower setting.
Bearing points are under lubricated. Timer/Controller cycle time setting too low. Set to longer sysle time or reevaluate lube
requirements.
Injector output adjustment setting too low. Readjust to higher setting.
Timer/Controller cycle timer setting does not Set to shorter cycle time or reevaluare lube
deliver lubricant often enough. requirements.
System too large for pump output. Calculate system requirements per planning manual.
LUBE FAULT L.E.D. turns on with each lube Timer/Controller set to Controller ode without Connect a pressure switch into the supply line and
cycle, and pump will not initiate another lube a pressure switch in the supply line. connect to timer/controller or place mode switch in
cycle automatically. Timer mode.
Low level switch wired incorrectly. Check low level switch wiring and correct if necessary.
Contact closure must be on low level condition.
ADDITIONAL TROUBLE SHOOTING WHEN ALARM MONITORING IS USED
Some, but not all, of the injectors are delivering Timer/Controller is set to Timer mode. Set Timer/Controller to Controller mode.
Pressure Switch setting is set too low. Adjust pressure setting switch to setting high enough
for all injectors to cycle.
Pressure Switch wiring is shorted. Check pressure switch wiring..
Lube Alarm L.E.D. turns on with each lube Bad electrical connection between Pressure Check all wiring between pressure switch and Timer/
cycle, and pump will not initiate another lube Switch and Timer/Controller. Controller.
cycle automatically. Pressure switch setting is too high. Adjust Pressure Switch to setting high enoughfor all
injecotrs to cycle.
Pressure Switch is defective. Repari or replace.
Timer/Controller is defective. Replace Timer/Controller.
Low level switch wired incorrectly. Check low level switch wiring and correct if necessary.
Contact closure must be on low levle condition.
Americas:
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USA
Phone [phone]
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Phone [phone]
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Phone [phone]
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© Copyright 2001
Printed in USA
Web site:
www.lincolnindustrial.com