Lincoln industrial CENTRO-MATIC FlowMaster 85244 User manual

PageSection - C8 - 291A
Form 403200
February 2002
CENTRO-MATIC®
FlowMaster Rotary Driven Hy raulic Pump
Mo el 85244
Series A

Page Number - 2
CENTRO-MATIC® PUMP, MODELS 85244
Form 403200
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 indicates a potentially ha ardous situation
which, if not avoided, could result in death or serious injury.
Please refer to the 85481 operation manual, section C8,
page 269, series B for all other safety considerations.
PRODUCT SPECIFICATIONS
Supply inlet hydraulic pressure,
maximum, PSIG (bar) - 3,500 (241)
Operating working hydraulic
pressure, PSIG (bar) - 300 to 450 (21 to 31).
Max. output pressure, PSIG (bar) - 3500 (241)
Hydraulic inlet flow, GPM (l/min) - Up to 7 (27)
Pump ratio with manifold - 9:1 at low inlet pressure
(300 to 350 PSI 21 to 24
bar]) and low inlet flow
(below 2 gpm 7.5 lpm])
Pump ratio approaches
11.0:1 ratio at higher
inlet pressure and flow.
Ambient oper. temp. ºF (ºC) - -20 to +150 (-29 to +66)
Operating voltage, VDC - 24
Hydraulic inlet port, In - SAE 4
Tank return port, In - SAE 6
Maximum hydraulic
fluid temp., ºF (ºC) - 250 (121)
Weight, Lbs (Kg) - 101 (46)
Container capacity , Lbs (Kg) - 90 (41)
Do not exceed 3,500 PSIG (241 bar) maximum supply inlet
hydraulic pressure or 3500 PSIG (241 bar) maximum outlet
pressure. Exceeding the rated pressures may result in
damage to system components and personal injury.
DESCRIPTION
General Description
Model 85244 is a pumping unit designed to operate a
Centro-Matic® lubrication system. The units include a vent
valve to relieve the line pressure to recharge the injectors.
FlowMaster Rotary Driven Hydraulic Pump includes
pressure reducing valve, flow control valve and solenoid
operated (24 VDC) On and Off valve. A 24 volt DC
solenoid valve with a manual override is standard on model
85244 and is an option on other models.©
The FlowMaster pump is fully automatic when used with
Model 85530 Controller and a pressure switch. The
FlowMaster pump is double acting, dispensing lubricant on
both the Up and Down strokes. This unit is designed to
be used with SL-1, SL-11, SL-32 and SL33 series injectors
or a combination of these.
Appropriate Use
The pump on this unit is exclusively designed to pump
and dispense lubricants using hydraulic power 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.
SYSTEM OPERATION
Operation with Model 85530 System Controller
When Model 85530 times out, it will initiate a lube cycle.
The solenoid is energi ed to deliver hydraulic pressure to
the pump and 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-energi e
the solenoid valve cutting off hydraulic oil pressure to the
pump and vent valve. Pump stops, pressure vents and
pressure switch de-actuates. Control begins timing toward
next lube event.
TABLE OF CONTENTS
Page
Safety...............................................................................................2
Specifications.................................................................................2
Description......................................................................................2
System Operation..........................................................................2
Installing the Pump......................................................................3
Putting Pump into Operation.......................................................3
Maintenance & Repair...................................................................3
Dimensions....................................................................................6
Repair Parts List............................................................................7
Troubleshooting...........................................................................8

Page Number - 3
CENTRO-MATIC® PUMP, MODEL 85244
Form 403200
INSTALLING THE PUMP
Place the unit in the approximate location making sure that
electric and hydraulic power connections are accessible.
Mark center locations of the six holes at the bottom of the
reservoir. Then drill six 1/2 (13 mm) holes. The use of
7/16 (11 mm) 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 (241 bar) working
pressure. Hydraulic inlet connection should be made with at
least 3/8 (9 mm) I. D. hose capable of at least 3,000 PSI (207
bar) operating pressure. Hydraulic return to tank connection
line should be 3/4 (19 mm) I. D. hose or pipe.
Please refer to the 85481 operation manual, section C8, page
269, series B for setting the pump pressure and flow
control.
PUTTING PUMP INTO OPERATION
Filling eservoir
To bulk fill the reservoir, remove the lower and upper pipe
plugs from the side of the reservoir (see Figure 4). Attach
the appropriatebulk-filling pump to the lower inlet (3/4
NPT). Fill reservoir until grease appears at the top 1/2
NPT vent high level port.Remove the bulk-filling pump.
Replace both pipe plugs.
To use the reservoir with 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 (25) (Figure
4) attached inside the reservoir at the 3/4 NPT inlet nipple.
Insert opened pail of lubricant and reattach lid and pump
assembly.
Note: If five gallon pail lubrication is to be used, then the
optional wing screws (28) should be used in place of the hex
bolt (29).
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
Keep area around pump clean. Clean off filling port 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 System Malfunction
(See Trouble Shooting Chart Page 8)
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 Figures 1, 2, 5 & 6, Pages 5 & 6)
The pump will not build up sufficient lubricant pressure if the
outlet check (36) is fouled. Foreign material may lodge
beneath the Check Ball (15) or between check disc (11) and
the seat of bushing assembly (12). Sealing surfaces of the
seat must form a perfect seal. Clean parts or replace if
pitted, worn or scored.
1. Turn off and disconnect the hydraulic and electric power
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 (600 mm) adjustable wrench and a smaller 10
(254 mm) adjustable wrench.
3. Remove bolts and lock washers (41 & 42).
4. Loosen adapter union (37). Set vent valve assembly to
the side.
5. Remove entire outlet check assembly (36) by loosening
adapter (35) from pump outlet.
6. Remove adapter (35 from outlet check assembly (36).
7. Remove outlet connector (16) from bushing (12).
8. Remove ball check seat (13) from outlet connector (16).
9. Inspect all check components (11, 12, 13, 15) for presence
of foreign material, scoring and or other damage, which
may cause internal leakage. Replace components if
damage is found.

Page Number - 4
CENTRO-MATIC® PUMP, MODELS 85244
Form 403200
10. If foreign material is present, clean components and
reassemble. Be sure to always replace gaskets (10) &
(14) whenever vent valve is disassembled. Reverse the
above procedure to reassemble. Torque check
assembly to 100 ft.-lbs. (13.5 N-M).
Vent Valve Service (See Figures 3, 5 &68 Pag-
es 5 & 6)
1. Turn off and disconnect the hydraulic and electrical power
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 (600 mm) adjustable wrench and a smaller 10
(254 mm) adjustable wrench.
3. Loosen Adapter Union (37) and Vent Hose (8).
4. Remove bolts and lock washers (41 & 42). Remove vent
valve.
5. Hold base of vent valve in vice to remove elbows (6 & 9).
Turn vent valve in vice so that vice jaws are gripping flats
machined on base of vent valve.
6. Remove hydraulic cylinder (17). Remove piston and
packing (18) from cylinder. If oil leakage was evident
from side of hydraulic cylinder then replace packing.
7. Remove packing assembly (20). If grease leakage was
evident from side of hydraulic cylinder, then replace
packing assembly.
8. Inspect needle (19) and valve seat (21). 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 (21) from valve body (23) by
placing a ¾ open end wrench onto the flats and loosening
the seat. The use of an adjustable wrench in place of the
open end wrench may be necessary due to the
accessibility of the seat.
9. Replace the valve seat (21) if damaged. Also be sure to
remove and replace the gasket (22) below the seat.
10. Reassembly is the reverse of the above procedure.
Needle (19) and hydraulic cylinder (17) inside diameter
should be coated with oil or grease to assist in
assembly.
11. Upon reassembly tighten valve seat (21) into body (23)
using 25 ft-lbs. (39 N-M). Tighten hydraulic cylinder (17)
onto valve body (23) using 100 ft-lbs. (135 N-M)
Safety Unloader Valve
(See Figure 1 Page 5)
Safety unloader valve (5) is not serviceable and should be
replaced if malfunction is apparent. Upon reassembly,
tighten to 10 ft-lbs. (13.5 N-M).
The Safety Unloader (5) is set to open at 3,750 to 4,250 PSI
lubricant pressure. If pressure Switch fails to operate and shut
off hydraulic supply to pump, the Safety Unloader will open at
approximately 4,000 PSI to relieve lubricant supply line pressure
(Safety Unloader is preset and cannot be adjusted.)
Bare Pump Assembly (See Figure 4 Page 5)
Please refer to the Operation Manual (C8, Page 269 series)
for the bare pump assembly (24).

Page Number - 5
CENTRO-MATIC® PUMP, MODEL 85244
Form 403200
5
9
6
4
Connect
to Vent Pipe
8
7Connect to Vent
Valve Port
Vent Assembly
Figure 1
25
34
32
31
29 (8 Reqd)
28 (8 Reqd,
Not Shown
24
Vent
Port
33
30 (8 Reqd)
Figure 4
Fill Port
Figure 2
Outlet Check Assembly (47)
10 11
12 13 14 15
16
1/4
NPTF
1/4 NPTF
Vent Valve (10)
20
19
3/4
NPTF
3/4
NPTF
21
23
22
18
Figure 3
17

Page Number - 6
CENTRO-MATIC® PUMP, MODELS 85244
Form 403200
19.5
(495 mm)
Inlet Port
SAE 4
6
1
43
44
27
41
(6 Reqd)
42
(2 Reqd)
2
(4 Reqd)
3
(2 Reqd)
26
(4 Reqd)
47
Model 86258
39.438
(1002 mm)
40,44
(4 Reqd)
Model 85487
15.12
(384mm)
46
Figure 6 Figure 7
17.132
(435 MM)
Flow Control Valve
Pressure Control
Valve
Tank Port
SAE 6
Solenoid Valve
33
35
36
38 37
9.50
(242 mm)
AA
39
3/4 NPTF
Lube Outlet
Figure 5 Figure 8

Page Number - 7
CENTRO-MATIC® PUMP, MODEL 85244
Form 403200
SERVICE PARTS
* Suggested service replacement components
* Suggested service replacement component
+ Sold as an assembly. Individual parts not available.
Item No. Qty. Description Model Item No. Qty. Description Model
1 1 Drum Cover 241085 25 1 Extension Tube 249356
2 4 Bolts 50016 26 4 HexNut 51026
3 2 Bracket 270723 27 1 Ventpipe 272171
4 1 VentValve Assembly 84980 28 8 Wing Screws (notshown) 252727
5 1 SafetyUnloader Ass’y *90942 29 8 Bolt 50015
6 1 Elbow 20012 30 8 Lock Washer 66220
7 1 Hydraulic Hose ©271598 31 1 Gasket *24935
5
8 1 VentHose 270726 32 1 Container Assembly 270923
9 1 Elbow 10160 33 2 Pipe Plug,Vent 67117
10 1 Gasket *31029 34 1 Pipe Plug,Fill 67224
11 1 Pump Check Disc Ass’y +*80206 35 1 Adapter 12213
12 1 OutletCheck Bushing +*90204 36 1 OutletCheck Assembly 81938
13 1 Ball CheckSeat *10313 37 1 Adapter Union 66645
14 1 Gasket *31001 38 1 Reducer Nipple 14727
15 1 Check ball (3/8” Dia.) *66001 39 1 Manual Override 272112
16 1 OutletConnector [phone] Screw 50169
17 1 Hydraulic Cylinder 241807 41 6 Lock Washer 66246
18 1 Piston +*244673 42 2 Bolt 50034
19 1 Needle *14722 43 1 Gasket *31010
20 1 Viton Packing Ass’y +*239330 44 1 Nut 12538
21 1 Valve Seat *14723 45 1 Retaining Ring *68888
22 1 Check Seatgasket *31047 46 1 Elbow 249533
23 1 Valve Body 239336 47 1 Gasket 33152
24 1 Bare Pump Assembly 271616 48 12 Lockwasher 66186
© Indicates change

Page Number - 8
CENTRO-MATIC® PUMP, MODELS 85244
Form 403200
Americas:
One Lincoln Way
St. Louis, MO 63120-1578
USA
Phone [phone]
Fax [phone]
Europe/Africa:
Heinrich-Hert -Str 2-8
D-69183 Walldorf
Germany
Phone [phone]
Fax [phone]
Asia/Pacific:
25 Intl Business Park
#01-65 German Centre
Singapore 609916
Phone [phone]
Fax [phone]
© Copyright 1999
Printed in USA
Web site:
www.lincolnindustrial.com
CONDITION POSSIBLE CAUSE CORRECTIVE ACTION
Pump does notoperate. No hydraulicpowerto pump. Turn on orconnecthydraulic supplyto
pump.
No pressure on gauge:
-Closed Supplyline shutoffvalve. Open shut-offvalve.
-No power to solenoid valve. Correctelectrical fault.
-FaultySolenoid. Replace solenoid.
-Pressure Reducing Valve is settoo low. Reset Pressure Reducing Valve.
- InsufficientHydraulic Fluid supply. Check hydraulic supplyfor proper
pressure and flow.
Pressure is shown on gauge on pump
manifold.
-Closed Fluid outletline. Check outletline and clear
obstructions.
-Flow Control Valve is fullyclosed. Readjust flow control valve to 1 turn open.
-Pump is stalled due to grease Check ventvalve in system.
backpressure.
Pump is seized or damaged. Dismantle the pump and repair
defective or seized component. See
pump service page.
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 componentleaking. Repair leaks.
Vent valve notrecieving proper pressure to Orifice fitting plugged.
keep itclosed.
Injector bypassing. Repair injectors.
Pump speeds up or runs Low level of grease or reservoir Refill reservoir.
erratically. is empty.
Pump piston or checks are worn. Refer to pump service sheet.
Pump runs, but output is low. Insufficient hydraulic fluid supply. Check hydraulic supply and adjust
flow.
Inlet pressure too low. Increase pressure at pressure control
valve.
Faulty inlet or discharge check valve in pump. Replace faulty components. See pump
service page.
Lubricant leaking from safety Pressure of system set too high. Adjust pressure switch setting.
unloader valve. Safety unloader damaged or contaminated. Replace safety unloader.
Lubricant leaking from weep Vent valve lubricant seal damaged. Replace lubricant seal.
hole in vent valve.
MODELS 85244 TROUBLESHOOTING