Product Manual

Description
Our hydraulic pumps are highly efficient and specifically
designed for bi-directional rotation. They utilize an exter-
nal gear fixed displacement design and are of a durable
cast iron construction. They incorporate an internally lubri-
cated 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. Hydraulic pumps are suitable for use in a wide
variety of material handling, agricultural, and construc-
tion equipment applications; in addition to machine
tools, robotics, and other types of machinery.
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.
Specifications
Cast iron hydraulic pump, 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, side porting with SAE straight thread ports, inter-
nally lubricated ball bearing for side loads to 150 lbs.
Replacement Parts
Seal & Bearing Kit .......................................................... 2300780
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/MOTORS
MODELS 10561 THRU 10567
MODEL
A
B
DIMENSIONS
10561
10562
10563
10564
10565
10566
10657
3.16”
3.16”
3.16”
3.16”
3.16”
3.66”
3.66”
9/16-18 SAE #6
9/16-18 SAE #6
3/4-16 SAE #8
3/4-16 SAE #8
3/4-16 SAE #8
7/8-14 SAE #10
7/8-14 SAE #10
PUMP/FLUID MOTOR DIMENSIONAL DATA
Figure 2 - Dimensions
Figure 1
CASE DRAIN
#4 SAE, 7/16-20
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
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
Concentric P/N_________________2690163
revised 07/21/11
1.500
1.000
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– 4
2690163 MODELS 10561 THRU 10567
Pump does not
develop full pressure
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
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
Motor won’t start 1. Loose connection
2. Circuit breaker tripped
3. Voltage drop
4. Seized pump
5. Start up load is higher than motor
torque capability
1. Check wiring
2. Reset circuit breaker
3. Use heavier gauge wire
4. Replace pump
5. Use larger motor or reduce operating
pressure
Will not pump oil
(Motor runs but cylin-
der does not move, or
moves slowly)
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 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
1. Low oil level
2. Air in system
3. Suction strainer or inlet filter is clogged
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
Motor operating slow
or stalling
1. Excessive slipping of gears due to over-
heating of oil
2. Excessive wear on the sides of gear
housing due to oil contaminants
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
Motor speed is erratic
1. Motor operating below minimum
recommended speed of 750 RPM
2. Air in system
1. Increase minimum operating speed to
750 RPM or more
2. Bleed air from system
SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION
Toubleshooting Chart
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