MODELS 4F649, 4F650 AND 4F651 ARE INTENDED
TO BE USED AS BI-ROTATIONAL PUMPS ONLY. THE
REMAINING MODELS CAN BE USED AS BI-ROTATIONAL
PUMPS AND/OR FLUID MOTORS.
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 appli-
cations. As hydraulic pumps they are suitable for use in a
wide variety of material handling, agricultural, and con-
struction 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 exten-
sion, 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.
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.
OPERATING INSTRUCTIONS & PARTS MANUAL
HYDRAULIC GEAR PUMPS
MODELS 4F649 THRU 4F659
Concentric P/N 2690098
Revised 02/06/2012
PUMPS
FLUID
MOTORS
X
X
X
X
X
X
X
X
X
X
X
N/A N/A
N/A
X
X
X
X
X
X
X
X
649
650
651
652
653
654
655
656
657
658
659
MODEL
A
B
DIMENSIONS
4F649
4F650
4F651
4F652
4F653
4F654
4F655
4F656
4F657
4F658
4F659
3.16”
3.16”
3.16”
3.16”
3.69”
3.69”
3.69”
3.69”
3.69”
4.20”
4.20”
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
PUMP/FLUID MOTOR DIMENSIONAL DATA
1.000
Figure 2 - Dimensions
CASE DRAIN
2.812
1.000
2.000
2.000
2.82
1.41
1.41
HYDRAULIC SCHEMATIC
BI-ROTATIONAL
GEAR PUMP
BI-ROTATIONAL
HYDRAULIC
MOTOR
.344 DIA. MTG. HOLD
(4) PLACES
Figure 1
1.500
3.000
3.25
1.38
3.28
2.76
.28
1.00
1/8” SQ. KEY
.500
“B” SAE PORT
.125
A
1.500
.5000
1.7815
WARNING!
