Lincoln SKF FlowMaster II A Series Instruction Manual

User and maintenance instructions
Model , series “A”
FlowMaster II rotary driven
electric pump ( V DC)
Date of issue August 
Form number A
Read manual prior to installation or use of
this product. Keep manual nearby for future
reference.

Explanation of safety
signals
Safety
Read and carefully observe these installation
instructions before installing, operating or
troubleshooting the referenced equipment.
Referenced equipment must be installed,
maintained and repaired exclusively by
persons familiar with the instructions.
Always disconnect power source (electric-
ity, air or hydraulic) from equipment, if appli-
cable, when it is not being used.
Adequate personal protection must be
used to prevent material from contacting the
skin or eyes.
If any fluid appears to penetrate the skin,
seek medical treatment immediately. Do not
treat injury as a simple cut. Tell attending
physician exactly what fluid was injected.
Failure to comply may result in personal
injury and/or damage to equipment.
Any other use not in accordance with
instructions will result in loss of claim for
warranty or liability.
• Never exceed maximum specification
ratings of the equipment.
• Do not misuse, modify parts, or use worn
and/or damaged parts.
•
Always read and follow the manufacturer’s
recommendations regarding the use of
protective clothing and equipment.
Overview
Model  is a FlowMaster II rotary
driven pumping unit designed to operate
a Centro-Matic lubrication system.
The pump includes motor speed control
and built in circuit protection to prevent
control burnout.The pump is double acting,
dispensing lubricant on both “up” and
“down” strokes. The model  also
includes:
• A  in. (50,8 mm) follower plate.
• An electric float switch.
• A vent valve for relieving line pressure to
recharge the injectors.
• A mechanical shut-off valve.
This unit is for use with SL-V, SL-, SL-,
SL- and SL- series injectors.
Mechanical shut-off valve
The mechanical shut-off valve automatically
shuts off the filling of the reservoir without
power applied to the system.
As grease flows through the valve and into
the reservoir, the follower raises until it con-
tacts the pivot arm. The pivot arm then rai-
ses until it contacts the pin on the shut-off
valve and closes the valve. When the valve
closes, the flow of the grease to the reservoir
stops.
Shut off the fill pump and relieve pressure
between the fill pump and the shut-off valve
in order to disconnect the fill line safely.
Keep the pressure relief valve activated
until the supply line pressure on the gauge
falls below  psi (13 bar). The fill line can
then be removed at the quick disconnect
point.
System specifications
Supply voltage  V DC
Ambient operating
temperature
– to + °F
(–40 to +66 °C)
Container capacity  lb (41 kg)
Mechanical shut-off valve specifications
Maximum operating
pressure
  psi
(413,6 bar)
Operating temperature – to + °F
(–40 to +65 °C)
Port shut-off body 1/2NPTF
Contents
Safety . . . . . . . . . . . . . . . . . . . . . . . . . 
Explanation of safety signals . . . . . . . 
Overview . . . . . . . . . . . . . . . . . . . . . . . 
Maintenance and repair . . . . . . . . . . . 
CAUTION
Indicates a hazardous situation which,if not
avoided, could result in minor or moderate
injury.
WARNING
Indicates a hazardous situation which,if not
avoided will result in death or serious injury.
DANGER
Indicates a hazardous situation which,if not
avoided, will result in death or serious injury.


Installing the pump
Locate unit so that electric power connection
is accessible.
 Mark center locations of the six holes at
the bottom of the reservoir.
 Drill six 1/2in (13 mm) holes. Use 7/16 in
(11 mm) bolts for added flexibility in
securing reservoir to the equipment.
 Connect lubricant outlet of pump to sys-
tem with suitable hose capable of
  psi (241 bar) working pressure.
Bare pump assembly
Refer to  operation manual 
for setting pump speed on  V DC motor.
Filling reservoir
To bulk fill reservoir, attach the supply line to
port "P" on shut off valve. Refer to
figure , page  and verify system is con-
nected and start fill pump.
When reservoir is full, shut-off valve will
close. Grease in fill line will be under high
pressure. Relieve grease pressure before
disconnecting fill hose by opening pressure
relief valve.
Refer to Filling reservoir with optional
 bypass manifold assem-
bly,page .
Maintenance and
repair
General maintenance
• Keep area around pump and filling port
clean, as lubricants attract dirt and debris.
• Keep lubricants free of contaminants.
43 45 47 46 48
44
29
1/4 in
NPTF
Fig. 
Outlet check assembly ()
System malfunction
Refer to Troubleshooting,page  for deter-
mining common problems and solutions.
Outlet check service
Refer to fig. .The pump will not build up
sufficient lubricant pressure if the outlet
check assembly () is fouled. Foreign mate-
rial may lodge beneath the steel ball () or
between check bushing assembly () and
the seat of pump check disc assembly ().
Sealing surfaces of seat must fully seal.
 Remove hose assembly ().
 Remove entire outlet check bushing (),
street elbow () and adapter ().
 Remove elbow () and adapter () from
outlet check bushing ().
 Remove outlet connector () from
check bushing assembly ().
 Remove pump check disc assembly ()
from outlet connector ().
 Inspect all check components (, , ,
) for presence of foreign material,
scoring and or other damage, that may
cause internal leakage. Replace compo-
nents if damage is found.
 Replace gaskets () and () whenever
outlet pump check disc assembly () is
disassembled.
WARNING
Do not perform maintenance or service
on assembly with any power source
connected.
Failure to comply can cause death
and/or serious personal injury.
WARNING
Do not over-fill reservoir. Extreme
pressure can damage reservoir.
Failure to comply can cause death
and/or serious personal injury.


58
57
56
55 61
62
61
63
64
52
60
59
51 53 54
52
Long screw
Long screw
Long screw
Long screw
Fig. 
Follower assembly ()
 For assembly, torque outlet connector ()
and check bushing assembly () to
 ft-lbf (13.5 Nm).
Safety unloader valve
Refer to fig. IPB, page .If pressure switch
fails to operate, safety unloader () acti-
vates at   to   psi (259 to 293 bar)
lubricant pressure to relieve supply line
pressure. Safety unloader () is not ser-
viceable and must be replaced if malfunc-
tioning occurs.
WARNING
Do not plug outlet of safety unloader.
Plugging safety unloader outlet will
result in pressure build up.
Failure to comply may result in death
or serious personal injury.
WARNING
Do not operate without safety
unloader installed.
If not installed, install safety unloader
before using pump.
Failure to comply may result in death
or serious personal injury.
Upon reassembly, tighten to  ft. lbf.
(13.5 Nm). Safety unloader is preset and
non-adjustable.
Follower
Refer to († fig. ) and († fig. IPB ,
page ). Service unit if follower foam is
damaged or fails to wipe sides of reservoir
effectively.
 Remove bolts () and lock washers ()
attaching the cover to the reservoir.
 Lift the entire pump, vent valve and cover
assembly out of the reservoir.
 Remove the entire follower assembly from
the reservoir ().
 Loosen and remove nuts () and
weighted follower plate () on top of the
follower.
 Remove and replace follower foam ().
NOTE
For assembly, install long bolts stag-
gered with short bolts as shown.


10 000 psi (689 bar)
Grease
M1
M1 M2
M1
SAE-6
M2
SAE-6
M2P R
R
6 000 psi
(413,6 bar)
max
1
/ 4 in NPT
Mechanical
shutoff
assembly
278552
Bypass manifold
assembly (optional)
Filling reservoir with
optional  bypass
manifold assembly
 Lock out and tag out electrical systems.
 Relieve pressure from system until gauge
is at “”.
 Connect pump to quick connect fitting.
 Turn fill pump on until guage reaches
maximum and fill pump stalls.
 Shut off the fill pump.
 Activate pressure relief valve.
 Reduce pressure until the control manifold
gauge is under  psi (13,8 bar).
 Disconnect quick connect fitting.
NOTE
For ease of filling tank, pressure relief valve or
pressure regulator (not provided) can be
mounted remotely.
Refer to Fig.  for proper connection of
hoses.
DANGER
Do not allow pressure to exceed
  psi (413,6 bar).
Do not operate pump without pres-
sure regulator or pressure relief valve to
regulate maximum pressure delivered
by pump.
Pressure regulator or relief valve not
provided.
Failure to comply may result in seri-
ous injury or death.
NOTE
Do not fill reservoir until grease level drops at
least  in (25 mm).
Fig. 
Hydraulic schematic
M2 R
R
M1
M1
P
M2
M2 R
R
M1
M1
P
M2
M2 R
R
M1
M1
P
M2
AC
B
Fig. 
Mechanical shut-off modes
A= Reservoir in filling mode
B= Reservoir filled, shut-off valve closed, pump off
C= Pressure relieved, safe to uncouple quick disconnect


8
9, 10
49
50
Fig. 
Fig. 
Float switch ()
Table 
Model  troubleshooting
Condition Possible cause Corrective action
Pump does not operate. No electrical power to pump. Turn on or connect  V DC power.
Motor relay failure. Replace relay.
Motor overheated. Turn power off for  minutes and restart.
Motor tripped out on locked rotor protection Remove high pressure or repair cause of locked pump.
Broken gearset or shaft. Repair gearbox.
Blown fuse. Replace fuse, check for cause of overload.
Pump motor polarity is reversed. Check to see if red motor lead is wired to the positive side of
the circuit.
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.
Pump speeds up or runs erratically. Low level of grease or reservoir is empty. Refill reservoir.
Follower plate is stuck and separated from grease. Check follower plate and container for damage.
Pump piston or checks are worn. Refer to pump service page .
Pump runs, but output is low. Motor speed control set too low. Refer to pump service page .
Faulty inlet or discharge check valve in pump. Refer to 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.
Unable to fill reservoir. Reservoir is full which closes the shut-off valve. After some grease has been used, retry.
Fill line pressure is too high. Relieve pressure at the relief valve
Shut-off valve does not close. Contamination in the shut-off valve. Remove the top block, spring and plunger and
remove contamination
33A
54
75
96
117
138
159
180
201
222
243B
3
4
1
2
Fig.  key Definition
 Level gage
 Level gage
 N/O contact
 N/O contact
A Full
B Empty
Float switch
Float switch ()  consists of a nor-
mally open dry-contact switch at top and a
series of reed switches below.
Dry contact switch controls a ‘full’ indica-
tor light or alarm. Reed switches control a
level gauge displaying reservoir level in %
increments. Refer to fig. , page .
Refer to Float switch service manual
 for more information.


1
Ø 1/2 in.
(12,7 mm)
Mounting
holes (x 6)
40°
20°
Ø 15- 1/8 in.
(384 mm)
Ø 13-7/8 in.
(352 mm)
58
57
56
55 61
62
61
63
64
52
60
59
51 53 54
52
14
15
6
16
17, 18
2
3
4
56
13
17.6 in.
(447 mm)
19.3 in.
(490 mm)
7811
612
68
9, 10
26
27
19
21
22
23
24
25 70
71
28
29
30
31
32
20
35 33, 34
39
41
40
28.7 in.
(729 mm)
36
37
38
33, 34
Torque to
9-10 ft.lbf
(12-13,5 Nm)
69
66
65
67
Fig. IPB 
See † page 


M2*
P*
72
73
74 75
76
77
78
79
80
81
82
83
84
Apply two drops
242 Loctite
180 degrees apart
Torque to
30–35 ft lbf
(41–47 Nm)
* All ports are 1/2 NPT
Fig. IPB 
Block and guide assembly ()


Table 
Service Parts
Item no. Description Qty. Part no. Item no. Description Qty. Part no.
 Extension tube    Pump check disc assembly  1)2)
 Hose    Check bushing assembly  1)2)
 Adapter    Ball check seat  1)
 Adapter    Gasket  1)
 Outlet check assembly    Steel ball (3/8in)  1)
 ° street elbow (1/4in NPTF)    Outlet connector  
 Vent hose    Gasket  
 Float switch    Float magnet  
 Hex head screw (– x 5/8in)    Magnet cover  
 Lock washer (#)    Socket head screw (– x 1/2in)  
 Hose    Wiper (fluorocarbon)  
 Nipple (1/4in NPTF x 3/4in NPTF)    Wiper cover  
 Vent fitting    Follower foam  
 External branch tee (1/4in NPTF)    Locknut (1/4–)  
 Safety unloader    Weighted follower plate  
 Vent tee    O-ring (nitrile)  
 Hex head screw (3/8– x  1/4in)    Wiper cover  
 Lock washer (3/8in)    Wiper (fluorocarbon)  
 Drum cover    Spacer  
 Gasket    Hex head screw (1/4– x  1/2in)  
 Gasket    Hex head screw (1/4– x  1/2in)  
 Nut    Follower plate  
 Vent pipe    Solenoid coil,  V DC  
 Follower assembly    Cartridge valve  
 Pipe plug (1/4in NPTF)    Vent valve body  
 Hex head screw (5/16– x 3/4in)     street ell  
 Lock washer (5/16 in)    Pivot arm assembly  
 Hex head screw (1/2– x  in)    Block and guide assembly (1/2in)  
 Gasket    Solenoid cable  
 Lock washer (1/2in)    U-cup seal  
 Hex jam nut (1/2–)    Washer  
 Pump gasket    Straight spring  
 Hex head screw (1/4– x  1/4in)    Spring housing  
 Lock washer (1/4in)    Gasket ( in OD ×  in ID)  
 Bare pump assembly  3)  Spring pin  
 ° elbow ( 1/4in NPTF)    Ball (1/2in Gr )  
 Reservoir assembly    Pin  
 Pipe plug ( in NPTF)    Body  
 Electric vent valve,  V DC  4)  Gasket  
 Elbow (1/2in ORFS x 3/4in NPTF[M])    Lock washer  
 Cap (1/2in ORFS)    Screws  
 Not used  Guide  
) Suggested service replacement components.
) Sold only as an assembly. Individual parts not available.
) Refer to owner’s manual  for pump details.
) Refer to service page  for service and troubleshooting.


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

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

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PUB LS/I  EN.R · August  · Form A
Warranty
The instructions do not contain any infor-
mation on the warranty. This can be
found in the General Conditions of Sales,
which are available at: www.lincolnindus-
trial.com/technicalservice or www.skf.
com/lubrication