OPERATING INSTRUCTIONS & PARTS MANUAL
HYDRAULIC GEAR PUMPS
MODELS 4F649 THRU 4F659
Concentric P/N 2690098
Revised 02/06/2012
READ CAREFULLY BEFORE ATTEMPTING TO ASSEMBLE, INSTALL, OPERATE OR MAINTAIN THE PRODUCT
DESCRIBED. PROTECT YOURSELF AND OTHERS BY OBSERVING ALL SAFETY INFORMATION. FAILURE
TO COMPLY WITH INSTRUCTIONS COULD RESULT IN PERSONAL INJURY AND/OR PROPERTY DAMAGE!
RETAIN INSTRUCTIONS FOR FUTURE REFERENCE.
WARNING!
MODELS 4F649, 4F650 AND 4F651 ARE INTENDED
TO BE USED AS BIROTATIONAL PUMPS ONLY. THE
REMAINING MODELS CAN BE USED AS BIROTATIONAL
PUMPS AND/OR FLUID MOTORS.
PUMPS
FLUID
MOTORS
649
N/A
X
650 651
X X
N/A N/A
652
653
654 655
X
X
X
X X
X X
X
656
X
X
657 658
X X
X X
659
X
X
Description
Our hydraulic pumps/fluid motors are highly efficient
and specifically designed for bi-directional rotation. They
utilize an external gear fixed displacement design and are
of a durable cast iron construction. They incorporate an
internally lubricated ball bearing on the drive shaft which
will withstand up to 150 lb. side load.
They can be used for direct drive or for belt driven applications. As hydraulic pumps they are suitable for use in a
wide variety of material handling, agricultural, and construction equipment applications; in addition to machine
tools, robotics, and other types of machinery. As fluid
motors, typical examples of applications are hose reel
drives, index tables, conveyor drives, lawn mowers and
many other applications where rotary motion is required.
Unpacking
Due to cast iron construction, very little damage can
occur during transit. Do not remove the plastic shipping
plugs from the ports until ready for installation. This will
keep dirt or foreign material from entering the system.
Check carton for the following loose components: (1)
pump/fluid motor assembly, (1) 4-bolt mounting gasket,
(4) 5/16-18” UNC x 3/4” mounting bolts with lockwashers,
and (1) square drive key should be taped to drive shaft.
If any of these components are missing or there is any
noticeable damage, please contact the office where item
was purchased.
Specifications
Cast iron hydraulic pump/fluid motor, bi-rotational,
4-bolt 4F17 mounting, 11 tooth gears, 1.50” shaft extension, 0.50” shaft diameter with 0.125” square x 1” drive
key, 400 PSI shaft seal, side porting with SAE straight
thread ports, internally lubricated ball bearing for side
loads to 150 lbs.
Figure 1
3.28
1.000
1.38
1.500
3.000
3.25
2.812
1.41
2.000
2.76
.500
“B” SAE PORT
.344 DIA. MTG. HOLD
(4) PLACES
2.000
2.82
1.000
1.41
CASE DRAIN
A
BI-ROTATIONAL
GEAR PUMP
Figure 2 - Dimensions
PUMP/FLUID MOTOR DIMENSIONAL DATA
DIMENSIONS
MODEL
4F649
4F650
4F651
4F652
4F653
4F654
4F655
4F656
4F657
4F658
4F659
A
3.16”
3.16”
3.16”
3.16”
3.69”
3.69”
3.69”
3.69”
3.69”
4.20”
4.20”
.28
1.00
.125
1.500
HYDRAULIC SCHEMATIC
9/16-18
9/16-18
3/4-16
3/4-16
3/4-16
7/8-14
7/8-14
7/8-14
7/8-14
7/8-14
7/8-14
1/8” SQ. KEY
1.7815
.5000
BI-ROTATIONAL
HYDRAULIC
MOTOR
B
2690098 MODEL 4F649 THRU 4F659
General Safety Information
WARNING!
DISCONNECT POWER AND RELEASE ALL SYSTEM
PRESSURE BEFORE SERVICING THIS EQUIPMENT.
1. Follow all local electrical and safety codes, as well as the
National Electrical Code (NEC) and the Occupational
Safety and Health Act (OSHA).
2. Never exceed the maximum operating speed or pressure.
3. When using AC motors, ground the motor properly by
wiring with a grounded, metal-clad raceway system,
using a separate ground wire connected to bare metal
of the motor frame, or other suitable means.
4. Guard all moving parts.
5. Drain all liquids from the system before servicing.
6. Check hoses and connections for security before each
use.
7. Periodically check the pump/fluid motor and system
components.
8. Provide a means of pressure relief for pumps whose
discharge line can be shut off or obstructed.
9. Wear safety glasses at all times when working with
pumps/fluid motors.
10. Keep work area clean, uncluttered and properly lighted; replace all unused tools and equipment.
11. Keep visitors at a safe distance from the work area.
12. Make the workshop child-proof with padlocks, master
switches, and by removing start keys.
13. Do not operate an engine in an enclosed area.
14. Do not spill gasoline on hot engine surfaces.
15. Store gasoline only in an approved container.
16. Keep dirty and oily cleaning rags in a tightly closed
metal container.
17. Check engine oil level before operating the engine.
18. Familiarize yourself with the controls and emergency
shutdown procedures.
19. Never operate the equipment when you are fatigued.
20. All system components pressure ratings should be
greater than maximum system pressure.
21. Guard all moving parts.
22. Replace all guards when servicing is complete.
CAUTION
Do not force coupling half onto drive shaft; it must
be a slip fit for adjustment and to avoid internal damage.
2. Tighten the setscrew and insert rubber spider in coupling half.
3. Assemble the other coupling half loosely to the
engine/motor shaft.
4. Bolt the pump/fluid motor loosely to the SAE type
four bolt mounting pump adapter as furnished by the
equipment manufacturer.
5. Align the shafts to make sure they are on center with
each other.
6. Tighten the mounting bolts.
7. Mate the coupling halves together, allowing 1/16”
gap between halves.
8. Check the alignment again.
IMPORTANT: THE GAP IN THE COUPLING HALVES
IS TO PREVENT END LOADING OF THE PUMP/
FLUID MOTOR DRIVE.
9. Tighten the setscrew in the mating coupling half.
10. Remove plastic shipping plugs from the inlet and
outlet ports.
11. Squirt clean oil into pump for pre-lubrication and
start-up.
12. Turn shaft coupling slowly to ensure proper shaft
alignment and coupling installation.
13. Connect inlet and outlet lines with an SAE straight
thread fitting and tighten.
CAUTION
Flush all lines and fittings of contamination.
WARNING!
THREADS ARE SAE, NOT NPTF. USING INCORRECT
FITTINGS COULD DAMAGE THE HYDRAULIC
COMPONENT OR CAUSE PERSONAL INJURY.
Assembly
Models 4F649 through 4F659 are packaged fully assembled and require no further assembly.
Installation
MOUNTING PUMP/FLUID MOTOR ASSEMBLY
TO FLEXIBLE COUPLING DRIVE SYSTEMS
1. Assemble the flexible coupling half to the pump/fluid
motor shaft.
NOTE: Do not use teflon tape; the O-ring provides the
seal and teflon tape is not required.
14. When using the assembly as a pump keep inlet hose
short and of adequate size to avoid pump cavitation.
NOTE: Cavitation is recognized by excessive noise and
foaming of hydraulic fluid.
CAUTION
Never run assembly without hydraulic oil.
15. At initial start-up, turn the drive shaft several times by
hand to prime.
16. Bleed all air from the system to prevent erratic operation.
17. After several cycles, check the reservoir oil level and
refill as necessary.
– 2 –
2690098 MODEL 4F649 THRU 4F659
STOCK
NO.
4F652
4F653
4F654
4F655
4F656
4F657
4F658
4F659
MODEL
4F652
OUR FLUID MOTOR SPECIFICATIONS
DISP.
CU.IN./REV.
0.194
0.258
0.323
0.388
0.453
0.517
0.647
0.711
MAX. PRESSURE
CONT. INTER.
3000 3500
3000 3500
3000 3500
3000 3300
2750 3025
2500 2750
2000 2200
1800 2000
FLUID MOTOR PERFORMANCE DATA
1000 PSI 1500 PSI
TORQUE
IN-LBS.
26
26
26
26
FLOW
RANGE
GPM
1
2
3
4
500 PSI
TORQUE
IN-LBS.
12
12
12
12
SPEED
RPM
1102
2293
3483
4674
SPEED
RPM
1013
2204
3395
4586
TORQUE
IN-LBS.
40
40
40
40
PUMP/FLUID MOTOR DIMENSIONAL DATA
MODEL
4F649
4F650
4F651
4F652
4F653
4F654
4F655
4F656
4F657
4F658
4F659
INLET PRESSURE
925
TORQUE
IN-LBS.
54
54
54
54
SPEED
RPM
2116
3306
4497
2000 PSI
SPEED
RPM
837
2027
3218
4409
A
3.16”
3.16”
3.16”
3.16”
3.69”
3.69”
3.69”
3.69”
3.69”
4.20”
4.20”
2500 PSI
TORQUE
IN-LBS.
68
68
68
68
DIMENSIONS
SPEED
RPM
1939
3130
4320
TORQUE
IN-LBS.
748
9/16-18
9/16-18
3/4-16
3/4-16
3/4-16
7/8-14
7/8-14
7/8-14
7/8-14
7/8-14
7/8-14
3000 PSI
81
81
81
81
B
SPEED
RPM
660
1850
2041
4230
4F653
4F654
4F655
4F656
4F657
4F658
10
11
11
2
3
4
5
2
4
6
7
3
5
6
8
4
6
8
5
7
9
6
9
16
16
16
16
20
20
20
20
24
24
24
24
28
28
28
28
32
32
32
32
40
40
40
1702
2597
3493
4388
1341
2772
4202
4917
1697
2880
4079
4674
1951
2971
3991
5000
2145
3039
3932
4826
2053
3124
3838
34
34
34
34
43
43
43
43
52
52
52
52
60
60
60
60
69
69
69
69
86
86
86
1613
2509
3404
4299
1253
2683
4114
4829
1609
2800
3990
4586
1862
2882
3902
4922
2057
2950
3844
4738
1965
3036
3750
53
53
53
53
66
66
66
66
80
80
80
80
93
93
93
93
106
106
106
106
133
133
133
1525
2420
3316
4211
1165
2595
4025
4741
1520
2711
3902
4497
1774
2794
3814
4834
1968
2862
3756
4649
1877
2948
3662
72
72
72
72
90
90
90
90
108
108
108
108
126
126
126
126
144
144
144
144
180
180
180
1437
2332
3227
4123
1076
2507
3937
4652
1432
2623
3813
4409
1686
2706
3725
4745
1880
2774
3667
4561
1788
2859
3573
90
90
90
90
113
113
113
113
136
136
136
136
159
159
159
159
181
181
181
181
1348
2244
3139
4034
988
2418
3849
4564
1344
2534
3725
4320
1597
2617
3637
4657
1792
2685
3579
4472
–
–
–
–
–
–
108
108
108
108
136
136
136
136
163
163
163
163
1260
2155
3051
3946
900
2330
3760
4475
1255
2446
2041
4232
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
4F659
10
12
7
44
44
44
2185
3160
3810
95
95
95
2097
3072
3721
146
146
146
2009
2983
3633
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
– 3 –
2690098 MODEL 4F649 THRU 4F659
Installation (Continued)
NOTE: Be sure adequate cooling for the hydraulic oil is
provided. Excessive temperatures can cause damage to
oil and/or system components. Cooling of oil is especially important on systems where continuous operation
is required. Cooling requirements must be based on:
duty cycle, pressure/flow, ambient temperatures, oil and
component maximum temperature specifications, and
reservoir capacity. Systems operating at excessively high
temperatures can be hazardous and may cause property
damage and/or personal injury.
NOTE: When the ambient temperature is below 32°F,
allow the pump to operate unloaded for several minutes
to warm the oil in the reservoir.
Operation
1. At initial start-up, start and stop several times (jog) to
allow the assembly to prime. After lines are full, the
pump may be operated at full speed.
2. Bleed all air from hydraulic system to prevent erratic
operation.
3. Recheck reservoir oil level after a few complete cycles
of the hydraulic system and refill if necessary.
Fluid Motor Operation
1. The reason for the high pressure oil seal and seal
check valves in the fluid motor is to provide bidirectional rotation without adding an independent
drain line from the oil seal chamber. However, if you
plan to operate the fluid motor(s) in series with other
equipment or with “down stream” (outlet) pressure
exceeding 400 PSI, then the case drain port must
be utilized. The case drain feature can be used by
removing the steel 7/16-20 SAE O-ring plug (see
Specification drawing) and plumbing this port back
to “tank” (low pressure line returning to reservoir).
WARNING!
BE SURE TO DISCONNECT POWER AND RELEASE
ALL SYSTEM PRESSURE BEFORE SERVICING THIS
EQUIPMENT.
Maintenance
1. Keep the reservoir filled with hydraulic fluid.
Recommended Hydraulic Fluids: use a good grade of
automatic transmission fluid (ATF).
2. Make frequent inspection of hydraulic fluid and
change if contaminated.
3. To fill the reservoir with clean oil:
Use a clean funnel fitted with a fine mesh wire screen.
Do not use a cloth strainer. Most pump/fluid motor
failure, valve malfunctions, and short unit life can
be traced directly or indirectly to dirt or other foreign material (water, chips, lint, etc.) getting into, or
already in, the hydraulic system.
4. Keep the unit clean of dirt and foreign materials.
5. Keep electrical connections clean.
Notes
– 4 –
2690098 MODEL 4F649 THRU 4F659
Toubleshooting Chart
SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION
Pump does not
develop full pressure
Motor won’t start 1. Loose connection
Will not pump oil
(Motor runs but cylinder does not move, or
moves slowly)
1. System relief valve set too low,
or leaking
2. Oil temp is too high
3. Pump is worn out
4. Double acting cylinder piston seals are
cut or worn out
2. Circuit breaker tripped
3. Voltage drop
4. Seized pump
5. Start up load is higher than motor
torque capability
1. No oil in reservoir
2. Motor rotating wrong direction
3. Oil level low
4. Suction strainer is clogged
5. Double acting cylinder piston seals are
cut or worn out
6. Reservoir breather is dirty or clogged
7. Bi-rotational check valve leaking
1. Check system relief valve for proper
setting with pressure gauge in outlet
line
2. Let oil cool below 140°F
3. Replace worn parts or pump
4. Replace or repair cylinder
1. Check wiring
2. Reset circuit breaker
3. Use heavier gauge wire
4. Replace pump
5. Use larger motor or reduce operating
pressure
1. Check oil level, refill
2. Change rotation of prime mover
or reverse inlet and outlet hoses
3. Add oil as needed
4. Clean suction strainer
5. Replace or repair cylinder
6. Clean reservoir breather and
reinstall
7. Remove check valve on pressure side.
Clean and reassemble.
Pump motor unit is
noisy
Motor operating slow
or stalling
Motor speed is erratic
1. Low oil level
2. Air in system
3. Suction strainer or inlet filter is clogged
1. Excessive slipping of gears due to overheating of oil
2. Excessive wear on the sides of gear
housing due to oil contaminants
1. Motor operating below minimum
recommended speed of 750 RPM
2. Air in system
1. Add oil as needed
2. Bleed air from highest fitting in system
by loosening fitting very slightly and
operating unit until bubbling of air
stops, then tighten
3. Clean suction strainer or inlet filter
1. Check system. Add oil if needed. Oil
cooler may be necessary to keep oil at
normal operating temperatures
2. Check condition of oil and replace if
contaminated
1. Increase minimum operating speed to
750 RPM or more
2. Bleed air from system
– 5 –
2690098 MODEL 4F649 THRU 4F659
ORDER REPLACEMENT PARTS
Please provide following information:
• Model Number
• Serial Number (if any)
• Part Description and Number
as shown in Parts List
– 6 –
BY CALLING TOLL FREE
1-800-323-0620
Address parts correspondence to:
Parts Company of America
1657 Shermer Road
Northbrook, IL 60062-5362 U.S.A.
2690098 MODEL 4F649 THRU 4F659
Replacement Parts List for Models 4F649 thru 4F659
REF
NO.
1
Drive shaft
Drive shaft
DESCRIPTION
4F649
4F650
4F651
4F652
4F653
4F654
4F655
4F656
PART
NO.
2350268
2350268
2350266
2350266
2720319
2720320
2720321
2720322
QTY.
1
1
1
1
1
1
1
1
4F657
Drive shaft
2
Drive gear key
Drive gear key
Drive gear key
3
1
Screw 1/4-20 x 1
Screw 1/4-20 x
Screw 1/4-20 x 2 Grade
Screw 1/4-20 x 2 Grade 8
Screw 1/4-20 x 2
/2 Grade 8
1
Grade 8
2
1
/
1
/2 Grade 8
4F658
4F659
4F649
4F650
4F651
4F652
4F653
4F654
4F655
4F656
4F657
4F658
4F659
4F649
4F650
4F651
4F652
4F653
4F654
4F655
4F656
4F657
4F658
4F659
2720323
2720225
2720226
2230021
2230021
2250022
2250022
2230078
2230078
2230080
2230080
2230080
2230082
2230082
*2130070
*2130070
*2130070
*2130070
*2130070
*2130072
*2130072
*2130072
*2130072
*2130075
*2130075
1
1
1
1
1
1
1
1
1
1
1
1
1
1
8
8
8
8
8
8
8
8
8
8
8
4
5
6
7
8
9
10
11
12
13
14
15
16
Square key .12 x .12 x 1.00
Shaft seal
Ball bearing
Snap ring
Gasket kit
O-ring (ARP 904-N-90)
Case drain plug (Steel) 7/16-20 SAE
Spacer ring
Snap ring
Spring
Steel plug 1/2-20 SAE
O-ring (ARP 905-N-90)
Nylon ball
Mounting screw 5/16-18 x 3/4 (not shown)
Mounting gasket (not shown)
5/16 Lockwasher (not shown)
*2250011
*2120093
*2030011
2240013
†2300482
*2120123
2420113
2590001
2240016
2110056
*2420114
*2120076
2870009
*2130087
2260064
*2150042
1
1
1
2
1
1
1
1
1
2
2
2
2
4
1
4
(*) Standard hardware item, available locally.
(†) NOTE: This Gasket Kit contains more gaskets than you will require. Use the same color gasket that was in the pump/
fluid motor assembly, discard remaining gaskets.
() Not shown.
– 7 –
Loading...