Product Manual

A
B
C
1.25
.125
1.50
.5000
.4997
1.7815
1.7800
.56
.62
SEE PARTS LIST
INLET PORT
OPPOSITE
1/2-14 NPTF
OUTLET PORT
1.000 1.000
3.00
1.750
2.144
1.000
1.000
1.406
2.812
2.812
1.406
.344 DIA. THRU
MOUNTING HOLES
(4)
2.560
1.750
TWO STAGE “HI-LO”
GEAR PUMP
HYDRAULIC SCHEMATIC
Figure 1
Figure 2 - Dimensions
Description
Our two stage, hi-low, external gear hydraulic pumps, Models 1012,
1053 and 1056, are designed to be direct-driven by gas engines or
electric motors. They are suited for use in log splitters and other
applications, such as: hydraulic lifts, platform lifts, die tables, auto-
matic hoists, trash compactors, bench presses, machine tool lube
systems, filter systems, clamping devices, and transfer systems, etc.
They are ideal for press-type applications requiring fast approach/
retract speeds and slower peak actuator work speeds because of
horsepower limitations or safety constraints.
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.
*See Specification section to determine drive key type and size.
Specifications
Stages .................................................................................................................. 2
Max. Operating Speed ..................................................................3600 RPM
Construction ......................................................................................Cast Iron
Max. Operating Pressure ................................................................3000 PSI
Unload Valve Setting ..................................................................SEE CHART
Mounting ........................................................................................ 4 Bolt 4F17
Shaft Extension .............................................................................1
1
/
2
” (1.50”)
Shaft Diameter ................................................................................1/2” (.50”)
Keyed Shaft ................................................ Model 1012 – #404 Woodruff
Models 1053 & 1056 – .12 square x 1.0”
Inlet Port .......................................Model 1012 3/4”, Others 1” dia. tube
Outlet Port ................................................................................... 1/2-14 NPTF
Pump Rotation ...................................................Clockwise (Facing Shaft)
SEAL KIT .......................................................................................P/N 2300260
These pumps are built for clockwise rotation as viewed from
the shaft end of the pump. Gas engine or electric motor must
turn the appropriate direction to avoid damage to the pump
assembly.
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
TWO STAGE, HI-LOW
EXTERNAL GEAR
HYDRAULIC PUMPS
MODELS 1012, 1053 AND 1056
CAUTION
MODEL
1012 1053 1056
Minimal Displ.
1st Stage .517 .647 .766
(cu. in./rev.)
2nd Stage .129 .194 .258
Total .646 .841 1.024
GPM @
1st Stage 8.06 10.08 11.94
3600 RPM 2nd Stage 3.02 3.02 3.97
@ 250 PSI
Total 10.07 13.1 15.91
Max. Pressure
1st Stage 500 500 600
PSI
2nd Stage 3000 3000 3000
Min. HP @ 2000 PSI
5 HP 5 HP 8 HP
(3500 RPM)
Performance Characteristics*
(*) When outlet port pressure is under 450 PSI, both stages are
working and total displacement applies. Above 450 PSI, only 2nd
stage displacement applies.
Concentric OIPM P/N_________________2690165
revised 08/16/2011
2690165 hilo.indd 1 8/17/11 9:20 AM
Replacement Parts List
REF.
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
D
D
D
DESCRIPTION
Dowel pin
Plunger
Copper gasket
Spring
Adjustment screw
Hex cap nut (torqued to 15 # ft.)
O-ring
Ball
O-ring
Cap
Spring
O-ring
Hex plug
Valve stem
Drive shaft
Drive key
Gear key
Snap ring 0.50
Gear key
† Assembly screws (1/4-20)
‡ Gasket kit
Drive pin
‡ Gasket kit
Shaft seal
Required for mounting
5/16-18 x 3/4 Grade 5 mounting bolts
4-Bolt mounting gasket
5/16 Lockwasher for mounting bolts
1012
2230031
2160206
2260001
2110003
2130024
2140008
2120024
2870008
2120078
2420088
2110051
2120019
2420106
2160009
2350177
2250013
2250013
2240013
2250020
2130078
2300480
2230021
2300481
2120104
2130107
2260064
2150042
PART NUMBER FOR MODEL:
1053
2230031
2160206
2260001
2110003
2130024
2140008
2120024
2870008
2120078
2420088
2110051
2120019
2420106
2160009
2350678
2250011
2250013
2240013
2250020
2130080
2300480
2230021
2300481
2120104
2130107
2260064
2150042
QTY.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
1
8
1
1
1
1
4
1
4
1056
2230031
2160206
2260001
2110003
2130024
2140008
2120024
2870008
2120078
2420088
2110051
2120019
2420106
2160009
2350679
2250011
2250013
2240013
2250013
2130080
2300480
2230021
2300481
2120104
2130107
2260064
2150042
† Screws for item #20 (Grade 8 socket head screws are acceptable)
‡ Gaskets are color coded to maintain specific gear clearances in pump
D Not shown
2690165 MODELS 1012, 1053 AND 1056
24
16
18
17
19
20
21
22
23
15
14
13
12 10 11 8 9 7
3
5 6 1 4 2
– 4 –
2690165 hilo.indd 4 8/17/11 9:20 AM