Lincoln industrial CENTRO-MATIC 84050 User manual

Page
Section - C8 - 142P
4.1A-68430-D01 Form 403125June2001
CENTRO-MATIC®
Model 84050(Series“F”)
Model85243(Caterpillar#178-6919)
Model 85460 (Series“A”)
AirOperatedPump

Page Number - 2
CENTRO-MATIC® PUMP,
MODELS 84050, 85243 & 85460
4.1A-68430-D01 Form 403125
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.
This symbol identifies the potential for a hazardous situation.
If this warning is not followed, a serious injury could occur.
Please refer to the following service page for the Model
83513 pump for all other safety considerations:
83513 Pump - Form Number 10L083513000J0
85209 Control - Section C8, Page 262 Series
PRODUCTSPECIFICATIONS
Pump Ratio: 50:1
Output Per Cycle 0.55 in³ (9 cc)
Output Per Minute 30 in³ (492 cc)
Pump Air Supply Pressure 50 to 70 psi (3.4 to 4.8 bar)
Operating Line Pressure 2500 psi Normal (172 bar)
3500 psi Maximum (241 bar)
Container Capacity 60 Lbs. Bulk (27 kg)
Air Consumption 4.3 CFM (120 l/min.)
Operating Temp. Range -10° F to 140° F
(-23° C to 60° C)
Weight (84050) 58 lbs. (27 kg)
(85460, 85243) 68 lbs. (31 kg)
DESCRIPTION
General Description
The Models 84050, 85243 and 85460 are pumping units
designed to operate centralized lubrication systems. They
have a high volume output, delivering 30 cubic inches of
lubricant per minute at typical Centro-Matic®pressures.
They are fully automatic when used with Model 85209
Control. Pump is double acting, dispensing lubricant on
both the UP and DOWN strokes. These units are designed
to be used with SL-1, SL-11, SL-32 and SL-33 series
injectors or a
combination of these. The difference between the two
models is that the 85460 is equipped with a follower and a
low level indicator.
Appropriate Use
•The pumps on these units are exclusively designed to
pump and dispense lubricants using compressed air
only.
•The maximum specification ratings should not be
exceeded.
•Any other use not in accordance with instructions will
result in loss of claims for warranty and liability.
PUMPOPERATION
Operation of 85209 with Model 85530 System
Controller
When Model 85530 times out, it will initiate a lube cycle.
The air solenoid is energized to deliver air to the pump and
air to the vent valve. Pump begins dispensing lubricant
through injectors to the bearings.
When all bearings have received lubricant, pressure rises
in the system to actuate the pressure switch. When
pressure switch actuates, the control is reset to de-energize
the solenoid valve cutting off air to the pump and vent valve.
Pump stops, pressure vents and pressure switch de-
actuates. Control begins timing toward next lube event.
INSTALLINGTHEPUMP
Place the unit in the approximate location making sure that
grease and air connections are accessible. Mark center
locations of the six holes at the bottom of the reservoir.
Then drill six 1/2” holes. The use of 7/16” bolts will offer
some flexibility in securing the reservoir to the equipment.
Lubricant outlet of pump should be connected to system with
suitable hose capable of 3,500 PSI working pressure. Air line
connection should be made with at least 1/4” I. D. hose
TableofContents Page
Safety...............................................................................2
Specifications...............................................................................2
Description...........................................................................2
Pump Operation........................................................................2
Installing the Pump...................................................................2
OptionalDevices...........................................................................3
Putting Pumpinto Operation......................................................3
Maintentanceand Repair..............................................................3
Dimensions............................................................................6
RepairParts List.........................................................................7
Troubleshooting............................................................8

Page Number - 3
CENTRO-MATIC® PUMP,
MODELS 84050, 85243 & 85460
4.1A-68430-D01
Form 403125
capable of at least 100 PSI operating pressure.
OPTIONALDEVICES
Low Level Kit
Model 249608 Low Level Kit can be installed whenever
higher viscosity greases or lower temperatures are
encountered and when an external indicator of lubricant level
is desired. The kit is composed of a follower with wiper
attached to a level indicator gage located on the cover of the
reservoir.
PuttingPumpinto Operation
Filling Reservoir
•To bulk fill the reservoir, remove the lower and upper pipe
plugs from the side of the reservoir. Attach the appropriate
bulk-filling pump to the lower inlet (3/4 NPT). Fill reservoir
until grease appears at the top ½ NPT high level port.
Remove the bulk-filling pump. Replace both pipe plugs.
•To fill the reservoir using a five-gallon pail of lubricant, first
remove the six bolts that secure the lid. Remove the entire
assembly of lid, pump and vent valve. Using pipe wrench
or vice grips, remove the filler nipple extension attached
inside the reservoir at the ¾ MPT inlet nipple. Insert
opened pail of lubricant and reattach lid and pump
assembly. Note: The follower cannot be used with pail.
Note: If pail lubrication is to be used, then the optional wing
screws (73) should be used in place of the hex bolt (40).
When filling the reservoir, caution should be used as
extreme pressure can cause damage to the reservoir or
serious personal injury.
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 as
lubricants will attract dirt.
•Keep lubricants clean and free of dirt and debris.
•When replacing grease pails be especially careful to
prevent any foreign matter from entering the grease pail or
contaminating the grease, as it adheres to the pump.
In Case of Trouble
(See Trouble Shooting Chart Page 7)
•Use the Trouble Shooting Charts to determine where to
look if problems occur.
•See the sections below for replacement and repair of
specific areas of the check valve, vent valve or safety
unloader valve.
•Each part is identified with a number keyed to the
matching part on the illustrated views.
•General recommendations of tools required are also
specified in each step.
•Pay particular attention to the Warning statements to
prevent personal injury and possible damage to pump
components.
Outlet Check Service (See Illustration Page 5)
1.Turn off and disconnect the air supply to the pump
assembly.
2.Standard tools required are a bench mounted vice, a set of
open end wrenches ranging from 7/16 to 1-1/2, a large 24”
adjustable wrench and a smaller 10” adjustable wrench.
3.Remove bolts and lockwashers (54 & 55).
4.Loosen union (53) and set vent valve assembly to the side.
5.Remove entire outlet check assembly (52) by loosening
adapter (50) from pump outlet.
6.Remove adapter (50) from bushing (22).
7.Remove outlet connector (26) from bushing (22).
8.Remove ball check seat (23) from outlet connector (26).
9.Inspect all check components (21, 22, 23, 25) for presence
of foreign material, scoring and or other damage, which
may cause internal leakage.
10. If foreign material is present, clean components and
reassemble, making sure to replace gaskets (20) & (24).
Reverse the above procedure to re-assemble. Torque
check assembly to 100 ft-lbs.
11. If check components appear to be scored or damaged
replace all components (21, 22, 23, 25) and gaskets (20)
& (24) with new ones. Reverse the above procedure to
re-assemble. Torque check assembly to 100 ft-lbs.
Vent Valve Service (See Illustration Page 5)
1.Turn off and disconnect the air supply to the pump
assembly.
2.Standard tools required are a bench mounted vice, a set of
open end wrenches ranging from 7/16 to 1-1/2, a large 24”
adjustable wrench and a smaller 10” adjustable wrench.
3.Remove delivery hose (17). Remove vent hose (14).
Remove air hose (7).
4.Remove bolts and lockwashers (54 & 55).
5.Loosen union (53) and remove vent valve.
6.Hold base of vent valve in vice to remove nipple (13) and
elbow (15). Turn vent valve in vice so that vice jaws are
gripping flats machined on base of vent valve.
7.Remove air cylinder (27). Remove piston (28) and packing
(29) from air cylinder. If air leakage was evident from side

Page Number - 4
CENTRO-MATIC® PUMP,
MODELS 84050, 85243 & 85460
4.1A-68430-D01 Form 403125
of air cylinder then replace packing.
8.Remove packing assembly (31). If grease leakage is
evident from side of air cylinder, then replace packing
assembly.
9.Inspect needle (30) and valve seat (32). If foreign matter is
lodged and is keeping the needle from sealing in valve
seat, clean and inspect for damage. If seat appears
damaged by nicks, grooves or scouring it should be
replaced. Remove valve seat (32) from valve body (34) by
placing a ¾” open end wrench onto the flats and loosening
the seat. The use of an adjustable wrench over the open
end wrench may be necessary due to the accessibility of
the seat.
10. Replace the valve seat (32) if damaged. Also be sure to
remove and replace the gasket (33) below the seat.
11. Reassembly is the reverse of the above procedure.
Needle (30) and air cylinder (27) inside diameter should
be coated with oil or grease to assist in assembly.
12. Upon reassembly tighten valve seat (32) into body (34)
using 25 ft-lbs. Tighten air cylinder (27) onto valve body
(34) using 100 ft-lbs.
Follower (see Illustration Page 6)
If follower wiper appears to be damaged or does not wipe the
sides of the container effectively service may be necessary.
1.Disconnect air supply from pump.
2.Remove the eight bolts (40) which attach the cover to the
reservoir.
3.Lift the entire pump, vent valve and cover assembly out of
the reservoir.
4.Unscrew the low level indicator (62) from the follower plate
(71).
5.Now remove the entire follower assembly from the pump
tube. After removing the follower assembly from the pump
tube wipe off the excess grease which will allow clean
access to the eight bolts that must be removed.
6.Loosen and remove the eight nuts (70) on top of the
follower.
7.Remove the follower weight (71) and the wiper (69).
Replace the wiper with a new one.
8.Re-assemble in the reverse of the above procedure
making sure that the long bolts are staggered with
the small ones and that they extend below the follower per
the dimension shown.
Low level indicator (see Illustration Page 6)
If the indicator pin appears to drop prematurely or water is
noticeable on top of the follower then the indicator seal (61)
may be damaged.
1.Remove the eight bolts (40) which hold the cover on to the
reservoir.
2.Inspect the reservoir seal (42) for damage. If damage is
apparent then replace the seal.
3.Remove the entire pump, vent valve and follower assembly
from the reservoir.
4.Remove the retaining ring (59) from the indicator rod
assembly (62).
5.Hold the indicator plug (64) with a wrench while removing
the indicator nut (60).
6.Remove and replace the O-ring (61).
7.Re-assemble in the reverse of the above procedure. Torque
the indicator note (60 to 20 ft-lbs.
Safety Unloader Valve (see Illustration Page 5)
The Safety Unloader (11) is set to open at 3,750 to 4,250 PSI
lubricant pressure. If pressure Switch fails to operate and
shut off air supply to pump, the Safety Unloader will open at
approximately 4,000 PSI to relieve lubricant supply line
pressure.
Safety unloader valve is not serviceable and should be
replaced if malfunction is apparent. Upon re-assembly,
tighten to 10 ft-lbs.
Bare Pump Assembly (See Illustration Page 5)
Please refer to the service page included for the bare pump
assembly (35).
© Indicates Change

Page Number - 5
CENTRO-MATIC® PUMP,
MODELS 84050, 85243 & 85460
4.1A-68430-D01
Form 403125
3/8” NPT Male Connect to
Air Solenoid Valve
43
47
3/4” NPT Male
Connect to Lube System
48
49
39
42
45
46
41 (8 Req’d)
40 (8 Req’d)
36, 37 (4 pcs. install
from bottom)
1235
38
Connect to Vent Pipe
Vent Valve Assembly (10)
Connect to Air
Solenoid Valve
6
Connect to Pump
7
12
14
13
15
19
11
Connect to
Junction
Block 16 18 17
98
10
16
20 21
22 23 24 25 26
1/4”
NPTF
1/4”
NPTF
27
28
29
30
31
32
33
3/4”
NPTF
3/4”
NPTF
34
12345
Vent Assembly (49)
44
Model 84050
3/8” NPT Male Connect to
Air Solenoid Valve
36, 37 (4 pcs. install
from bottom)
47
3/4” NPT Male
Connect to Lube System
63
49
42
46
41 (8 Req’d)
See Section
C-C
39
44
35
Model 85460&85243
12
43
38
40 (8 Req’d)
45
51
Outlet Check Assembly(52)

Page Number - 6
CENTRO-MATIC® PUMP,
MODELS 84050, 85243 & 85460
4.1A-68430-D01 Form 403125
Model 84050 shown
15” (381mm)
54 55
ViewA-A
31”
© Indicates Change
68
69 70 37
71
72
FollowerAssembly (63)
74
67
DD
Section D-D ©
20°
40°
13.9” (353 mm)
Bolt Circle Dia.
6 x .500”
(12.7 mm) Dia.
AA
52 53
B
B
50
51
19”
(483 mm)
Model 84050 shown
Section B-B
39 (Ref)
14 (Ref)
56
57 58
65
60
61
62
71 (Ref)
59
38 (Ref.)
66
64
Section C-C
Model 85460 & 85243 Only

Page Number - 7
CENTRO-MATIC® PUMP,
MODELS 84050, 85243 & 85460
4.1A-68430-D01
Form 403125
SERVICEPARTS
Item Qty. Description Model
No. 84050, 85243
& 85460
1 1 Tee (1/4”) 67102
2 1 Union Adapter 66649
3 1 Air Coupler 247668
4 1 Air Hose 72060
5 1 Bushing 20011
6 1 Elbow 13129
7 1 Air Hose 237318
8 1 Nipple 10462
9 1 Male Fitting 11659
10 1 Vent Valve Assembly 83948
11 1 Safety Unloader Ass’y *90942
12 2 Bushing 10461
13 1 Nipple 14727
14 1 Volume Hose 236874
15 1 Elbow 10160
16 2 Nipple 11197
17 1 Delivery Hose 236607
18 1 Adapter Union 66883
19 1 Bushing 12018
20 1 Gasket *31029
21 1 Pump Check Disc Ass’y +*80206
22 1 Outlet Check Bushing +*90204
23 1 Ball Check Seat *10313
24 1 Gasket *31001
25 1 Steel ball (3/8” Dia.) *66001
26 1 Outlet Connector +90860
27 1 Air Cylinder 14720
28 1 Piston 14721
29 1 Packing (Nitrile) *34229
30 1 Needle *14722
31 1 Viton Packing Ass’y +*239330
32 1 Valve Seat *14723
33 1 Check Seat Gasket *31047
34 1 Valve Body 239336
35 1 Bare Pump Assembly 83513
36 4 Screw 50169
37 12 Lock Washer 66186
Item Qty. Description Model
No. 84050, 85243
& 85460 38 1 Cover 241085
39 1 Elbow 249533
40 8 Bolt 50015
41 8 Lock Washer 66220
42 1 Gasket *249355
43 1 Pipe Plug 67117
44 1 Gasket 33152
45 1 Container Assembly 242765
46 1 Pipe Plug 67224
47 1 Extension Tube 249356
48 1 Oil Seal 69383
49 1 Vent Assembly 249536
50 1 Adapter 12213
51 1 Vent Fitting 249354
52 1 Outlet Check Assembly 81938
53 1 Union 66645
54 2 Lockwasher 66246
55 2 Bolt 50016
56 1 Gasket *31010
57 1 Nut 12538
58 1 Vent Pipe 67420
59 1 Retaining Ring *68888
60 1 Indicator Nut 16352
61 1 O-Ring *249532
62 1 Cable Assembly 249762
63 1 Follower Assembly 249330
64 1 Indicator Plug 249357
65 1 Washer 48548
66 1 Indicator Bracket 361020
67 4 Bolt - Long 50084
68 4 Carriage Bolt - Short 249332
69 1 Wiper (Nitrile) *249331
70 8 Nut 51304
71 1 Follower Weight 249334
72 1 Follower Guide Plate 249333
73 8 Wing Screws (not shown) 252727
74 4 Spacer 249833
* Suggested service replacement components
+ Sold only as an assembly. Individual parts not available.

Page Number - 8
CENTRO-MATIC® PUMP,
MODELS 84050, 85243 & 85460
4.1A-68430-D01 Form 403125
Lincoln GmbH
69190 Walldorf
Heinrich-Hertz Strasse 2-8
([phone]
Lincoln Industrial
25 International Business Park
#01-68 German Centre
Singapore 609916
([phone]
Lincoln Industrial
One Lincoln Way
St. Louis, MO 63120-1578
([phone]
www.lincolnindustrial.com
Condition Possible Cause Corrective Action
Pump does not operate. No air to pump. Turn on or connect air supply to pump.
Airmotor or pump tube malfunction. Refer to pump service page.
Air seepage from air exhaust Airmotor malfunction. Refer to pump service page.
while pump is not operating.
Pump runs excessively. Pump tube malfunction. Refer to pump service page.
Outlet check damage or contamination. Repair check or remove contamination.
Vent valve damage or contamination. Repair vent valve or remove contamination.
System component leaking. Repair leaks.
Injector bypassing. Repair injectors.
Lubricant leaking from weep Pump tube malfunction. Refer to pump service page.
hole of pump outlet casting.
Lubricant leaking from safety Pressure of system set too high. Adjust pressure switch setting.
unloader valve. Safety unloader damaged or contaminated. Replace safety unloader.
Air leaking from weep Vent valve air seal damaged. Replace air seal.
hole in vent valve.
Lubricant leaking from weep Vent valve lubricant seal damaged. Replace lubricant seal.
hole in vent valve.
MODEL 84050, 85243 & 85460 TROUBLESHOOTING