SKF LINCOLN FlowMaster II C Series Instruction Manual

User and maintenance instructions
Model 482-2532*, series “C”, CAT branded*
FlowMaster II rotary driven
electric pump (24 V )
Date of issue August 
Form number 
Version 
* Indicates change.

System specifications
Supply voltage 24 V
Ambient operating temperature –40 to +150 °F (–40 to +66 °C)
Container capacity 90 lb (41 kg)
Mechanical shut-off valve specifications
Maximum operating pressure 6 000 psi (413,6 bar)
Operating temperature –40 to +150 °F (–40 to +65 °C)
Port shut-off body 1/2NPTF
Contents
Explanation of safety signals . . . . . . . . 
Safety . . . . . . . . . . . . . . . . . . . . . . . . . 
System specifications . . . . . . . . . . . . . . . . . 2
Mechanical shut-off valve
specifications. . . . . . . . . . . . . . . . . . . . . . . . 2
Overview. . . . . . . . . . . . . . . . . . . . . . . 
Install pump . . . . . . . . . . . . . . . . . . . . 
Bare pump assembly . . . . . . . . . . . . . . . . . 3
Fill reservoir . . . . . . . . . . . . . . . . . . . . 
Maintenance and repair . . . . . . . . . . . . 
General maintenance . . . . . . . . . . . . . . . . . 3
System malfunction . . . . . . . . . . . . . . . . . . 3
Outlet check service . . . . . . . . . . . . . . . . . . 4
Safety unloader valve . . . . . . . . . . . . . . . . . 4
Follower. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Low level indicator . . . . . . . . . . . . . . . . . . . 5
Fill reservoir with optional 278552
bypass manifold assembly . . . . . . . . . . . . . 6
Float switch . . . . . . . . . . . . . . . . . . . . . . . . 7
Mechanical shut-off valve . . . . . . . . . . 
Individual parts breakdown . . . . . . . . . . . . 9
Service parts. . . . . . . . . . . . . . . . . . . 
Troubleshooting . . . . . . . . . . . . . . . . 
Warranty. . . . . . . . . . . . . . . . . . . . . . 
Safety
Read and carefully observe installation
instructions before installing, operating or
troubleshooting referenced equipment.
Equipment must be installed, maintained
and repaired exclusively by
persons familiar with instructions.
• Adequate personal protection must be
used to prevent splashing of material on
skin or in eyes.
• Always disconnect power source (electric,
air or hydraulic) from equipment, if
applicable, when not being used.
• If any fluid appears to penetrate skin, seek
medical treatment immediately.
• Any other use not in accordance with
instructions will result in loss of claim for
warranty or liability.
• Do not misuse, modify parts, or use worn
and/or damaged parts.
• Never exceed maximum specification
ratings of the equipment.
• Always read and follow manufacturer’s
recommendations regarding use of
protective clothing and equipment.
CAUTION
Do not treat injury as simple cut. Tell
attending physician exactly what fluid was
injected into skin.
Failure to comply may result in personal
injury and/or damage to equipment.
Explanation of
safety signals
DANGER
Indicates a dangerous situation that will lead
to death or severe personal injury if
precautionary measures are ignored.
WARNING
Indicates a dangerous situation that can lead
to death or severe personal injury if
precautionary measures are ignored.
CAUTION
Indicates a dangerous situation that can lead
to light personal injury or property damage if
precautionary measures are ignored.
NOTE
Emphasizes useful hints and
recommendations as well as information for
efficient and trouble-free operation.
2

Overview
Model 482-2532* 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. Model 482-2532* also includes:
• 2 in (50,8 mm) follower plate
• Electric float switch
• Vent valve for relieving line pressure to
recharge injectors
• Mechanical shut-off valve
This unit is for use with SL-V, SL-1, SL-11,
SL-32 and SL-33 series injectors.
Install pump
Locate unit so that electric power connection
is accessible.
 Mark center locations of six holes at
bottom of reservoir.
 Drill six 1/2in (13 mm) holes. Use 7/16 in
(11 mm) bolts for added flexibility in
securing reservoir to equipment.
 Connect lubricant outlet of pump to
system with suitable hose capable of
3 500 psi (241 bar) working pressure.
Bare pump assembly
Refer to 85738 operation manual 
for setting pump speed on 24 V motor.
Fill reservoir
To bulk fill reservoir, attach supply line to
port Pon shut-off valve. Refer to
Fig. , page  and verify system is
connected 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 Fill reservoir with optional
 bypass manifold
assembly,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.
System malfunction
Refer to Troubleshooting,page  for
determining common problems and
solutions.
DANGER
Do not perform maintenance or service on
assembly with any power source connected.
Failure to comply will result in death or
serious personal injury.
WARNING
Do not overfill reservoir. Extreme pressure
may damage reservoir.
Failure to comply may result in death or
serious personal injury.
* Indicates change.
3

DANGER
Do not plug outlet of safety unloader.
Plugging safety unloader outlet will result in
pressure build up.
Failure to comply will result in death or
serious personal injury.
NOTE
If pressure switch fails to operate, safety
unloader () activates at
3 750 to 4 250 psi (259 to 293 bar)
lubricant pressure to relieve
supply line pressure.
Safety unloader is preset and
non-adjustable.
DANGER
Do not operate without safety unloader
installed.
If not installed, install safety unloader
before using pump.
Failure to comply will result in death or
serious personal injury.
43 45 47 46 48
44
29
1/4 in
NPTF
Outlet check service
Refer to Fig. .The pump will not build up
sufficient lubricant pressure if the outlet
check assembly () is fouled. Foreign
material may lodge beneath steel ball () or
between check bushing assembly () and
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
components if damage is found.
 Replace gaskets () and () whenever
outlet pump check disc assembly () is
disassembled.
 For assembly, torque outlet connector ()
and check bushing assembly () to
100 ft-lbf (13,5 Nm).
Safety unloader valve
Refer to Fig. IPB , page .If pressure
switch fails to operate, safety unloader ()
activates at
3 750 to 4 250 psi (259 to 293 bar)
lubricant pressure to relieve supply line
pressure. Safety unloader ()
is not serviceable and must be replaced if
malfunctioning occurs.
Upon reassembly, tighten to
10 ft-lbf (13,5 Nm). Safety unloader is preset
and non-adjustable.
Fig. 
Outlet check assembly ()
4

58
57
56
55 61
62
61
63
64
52
60
59
51
53
54
52
A
A
A-A
D-D
DD
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 ().
Low level indicator
Refer to Fig.  and Fig. IPB , page .If
indicator pin appears to drop prematurely or
water is noticeable on top of follower
indicator, seal may be damaged.
 Remove bolts () and washers ()
holding cover on the reservoir.
 Inspect reservoir gasket () for damage
and replace if necessary.
 Remove entire pump, vent valve and
follower assembly from reservoir.
 Remove retaining ring () from cable
assembly ().
 Hold indicator plug () with wrench while
removing indicator nut ().
 Remove and replace O-ring ().
 For assembly, torque indicator nut () to
20 ft-lbf (27,1 Nm).
NOTE
For assembly, install long bolts staggered
with short bolts as shown.
85
86
91
89
87
88
90
Fig. 
Low level indicator
Fig. 
Follower assembly ()
5

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)
Fill 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 gauge reaches
maximum and fill pump stalls.
 Shut off fill pump.
 Activate pressure relief valve.
 Reduce pressure until control manifold
gauge is under 200 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
6 000 psi (413,6 bar).
Do not operate pump without
pressure regulator or pressure relief
valve to regulate maximum pressure
delivered by pump.
Pressure regulator or relief valve not
provided.
Failure to comply will result in death
or serious injury.
NOTE
Do not fill reservoir until grease level drops at
least 1 in (25 mm).
M2 R
R
M1
M1
P
M2
M2 R
R
M1
M1
P
M2
M2 R
R
M1
M1
P
M2
AC
B
A= Reservoir in filling mode
B= Reservoir filled, shut-off valve closed, pump off
C= Pressure relieved, safe to uncouple quick disconnect
Fig. 
Hydraulic schematic
Fig. 
Mechanical shut-off modes
6

8
9
49
50
10
Float switch
Float switch () consists of a normally open
dry contact switch at top and a series of reed
switches below, Fig. .
Dry contact switch controls a full indicator
light or alarm. Reed switches control a level
gauge displaying reservoir level in ten
percent increments.
Refer to Float switch service manual
B for more information.
Fig. 
Float switch ()
Fig. 
Item Description
1 Level gauge
2 Level gauge
3 N/O contact
4 N/O contact
A Full
B Empty
33 ΩA
54
75
96
117
138
159
180
201
222
243 Ω B
3
4
1
2
7

M2
P
87
88
74 75
76
77
78
79
80
81
82
83
843)
2)
1)
1)
1) All ports are 1/2in NPTF.
2) Apply two drops of 242 Loctite, 180° apart.
3) Torque to 30–35 ft-lbf (41–47 Nm).
Fig. 
Mechanical shut-off valve, block and guide assembly ()
Mechanical shut-off
valve
Mechanical shut-off valve automatically
shuts off filling of reservoir without power
applied to system.
Shut off fill pump and relieve pressure
between fill pump and shut-off valve in
order to disconnect fill line safely.
Keep pressure relief valve activated until
supply line pressure on gauge falls below
200 psi (13 bar). Fill line can then be
removed at quick disconnect point.
8

1
Ø 1/ in
(12,7 mm)
Mounting
holes (x 6)
40°
20°
Ø 15- 1/ in
(384 mm)
Ø 13-7/ in
(352 mm)
8
8
2
2
3
2
19 1/ in
14
15
6
16
17
2
3
4
56
13*
17 1/ in
(447 mm)
(490 mm)
7811
612
68
9, 10
19
21
22
23
24
25 70
71
28
29
30
31
32
20
35 33, 34
39
41
40
28 1/ in
(729 mm)
36
37
38
33, 34
Torque to
9-10 ft.lbf
(12-13,5 Nm)
69
66
65
67
26
27
18
85
91
Fig. IPB 
*Indicates change.
9

Service Parts
Item no. Description Qty. Part no. Item no. Description Qty. Part no.
1 Extension tube 1 276853 46 Gasket 1 31001 1)
2 Hose 1 272711 47 Steel ball (3/8in) 1 66001 1)
3 Adapter 1 12989 48 Outlet connector 1 90860
4 Adapter 1 12213 49 Gasket 1 274540
5 Outlet check assembly 1 81938 50 Float magnet 1 274543
6 90° street elbow (1/4in NPTF) 3 277439 51 Magnet cover 1 279469
7 Vent hose 1 273233 52 Socket head screw (10–24 x 1/2in) 8 50762
8 Float switch 1 277654 53 Wiper (fluorocarbon) 1 274319
9 Hex head screw (10–24 x 5/8in) 5 50088 54 Wiper cover 1 279468
10 Lock washer (#10) 5 68991 55 Follower foam 1 276894
11 Hose 1 277441 56 Locknut (1/4–20) 8 51304
12 Nipple (1/4in NPTF x 3/4in NPTF) 1 14727 57 Weighted follower plate 1 276890
13 Vent fitting 1 249354 58 O-ring (nitrile) 1 270720
14 External branch tee (1/4in NPTF) 1 277947 59 Wiper cover 1 274318
15 Safety unloader 1 272722 60 Wiper (fluorocarbon) 1 274321
16 Vent tee 1 272717 61 Spacer 12 241101
17 Hex head screw (3/8–16 x 1 1/4in) 8 50015 62 Hex head screw (1/4–20 x 2 1/2in) 4 50062
18 Lock washer (3/8in) 8 66220 63 Hex head screw (1/4–20 x 4 1/2in) 4 241102
19 Drum cover 1 279351 64 Follower plate 1 276888
20 Gasket 1 249355 65 Solenoid coil, 24 V 1 278703
21 Gasket 1 31010 66 Cartridge valve 1 279225
22 Nut 1 12538 67 Vent valve body 1 278958
23 Vent pipe 1 67290 68 45 street ell 1 278847
24 Follower assembly 1 279627 69 Pivot arm assembly 1 279197
25 Pipe plug (1/4in NPTF) 1 67007 70 Block and guide assembly (1/2in) 1 278668
26 Hex head screw (5/16–18 x 3/4in) 2 50016 71 Solenoid cable 1 277841
27 Lock washer (5/16 in) 2 66246 72 U-cup seal 1 271937
28 Hex head screw (1/2–20 x 1 in) 1 50025 73 Washer 1 277593
29 Gasket 2 31029 74 Straight spring 1 55303
30 Lock washer (1/2in) 1 69181 75 Spring housing 1 279162
31 Hex jam nut (1/2–20) 1 51039 76 Gasket (1 in OD × 771 in ID) 1 31001
32 Pump gasket 1 277406 77 Spring pin 1 279165
33 Hex head screw (1/4–20 x 1 1/4in) 4 277728 78 Ball (1/2in Gr 25) 1 203207
34 Lock washer (1/4in) 4 66186 79 Pin 1 277590
35 Bare pump assembly 1 508-3335* 3) 80 Body 1 278769
36 90° elbow (1 1/4in NPTF) 2 276854 81 Gasket 1 279042
37 Reservoir assembly 1 277422 82 Lock washer 2 66246
38 Pipe plug (1 in NPTF) 1 67346 83 Screws 2 50016
39 Electric vent valve, 24 V 1 454-9804* 4) 84 Guide 1 277591
40 Elbow (1/2in ORFS x 3/4in NPTF[M]) 1 276858 85 Indicator bracket 1 361020
41 Cap (1/2in ORFS) 1 273141 86 Retaining ring 1 68888
42 Not used 87 Indicator nut 1 16352
43 Pump check disc assembly 1 80206 1) 88 O-ring 1 249532
44 Check bushing assembly 1 90204 1) 89 Washer 1 48548
45 Ball check seat 1 10313 1) 90 Indicator plug 1 249357
91 Cable assembly 1 277421
1) Suggested service replacement components.
2) Sold only as an assembly. Individual parts not available.
3) Refer to owner’s manual  for pump details.
4) Refer to service page  for service and troubleshooting.
* Indicates change
10

Troubleshooting
Condition Possible cause Corrective action
Pump does not operate. No electrical power to pump. Turn on or connect 24 V power.
Motor relay failure. Replace relay.
Motor overheated. Turn power off for 10 minutes and restart.
Motor tripped out on locked rotor protection Remove high pressure or repair cause of locked
pump.
Broken gear set or shaft. Repair gear box.
Blown fuse. Replace fuse, check for cause of overload.
Pump motor polarity is reversed. Check to see if red motor lead is wired to positive
side of 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 and closes shut-off valve. After some grease has been used, retry.
Fill line pressure is too high. Relieve pressure at relief valve
Shut-off valve does not close. Contamination in shut-off valve. Remove top block, spring and plunger and
remove contamination
11

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August 2021 · Form 404696 Version 4
Warranty
The instructions do not contain any information on the warranty.
This can be found in the General Conditions of Sales, available at:
www.lincolnindustrial.com/technicalservice or www.skf.com/lubrication.