HPU100 Hydraulic Power Units
Kobelt Manufacturing Co. Ltd.
Rev C
MNL-HPU100
7 of 32
2.1
C
OMPONENTS
The Accu-Steer HPU100 is a complete pump assembly consisting of a gerotor style pump,
adjustable flow control, adjustable pressure release valve and an electric permanent magnet
motor terminated in an electrical junction box. As the pump set is self-contained, installation
involves connecting the unit to the steering lines and the electric control and adjusting the
unit to the requirements of the steering system.
2.1.1
Electric Motor
The electric motor is a permanent magnet style D.C. motor featuring ball bearing supports
and replaceable brush gear. The motor is directly coupled to the pump unit by a machined
face. The electric motors are available in both 12 VDC and 24 VDC voltages.
2.1.2
Pump
The pump is a gerotor style gear unit with extremely quiet operation. Hydraulic flow control
and pressure relief are adjustable. The pressure relief valves are factory set for 500 psi.
and should not be altered in the field as it will change the electric motor current draw.
2.1.3
Hydraulic Manifold
The hydraulic manifold includes directional valve, flow control, pressure relief and by-pass
valve. it also acts as a base to hold motor and pump. All adjustment and hydraulics line
connected to manifold.
2.2
T
ECHNICAL
S
PECIFICATIONS
Table 1: HPU100 Technical Specifications
MODEL
HPU100-12
HPU100-24
HPU100S-24
KOBELT P/N:
600-031
600-032
600-032SS
NOMINAL VOLTAGE
12 VDC
24 VDC
MOTOR CURRENT
No Load: 10 A
Full Load: 30 A
No Load: 5 A
Full Load: 15 A
SOLENOID MAX. CURRENT
Direction: 2.5 A
Speed: 1.7 A
Direction: 1.3 A
Speed: 0.9 A
MAX. OUTPUT
1.0 GPM [3.7 Lit. /min.]
MAXIMUM ALLOWABLE PRESSURE
•
A & B PORTS
•
T PORT
1000 PSI [70 bar]
50 PSI [3.4 bar]
RELIEF PRESSURE
500 PSI [34 bar]
VALVE WITH SOFT SHIFT
NO
YES
SERVICE DUTY
Intermittent: 20% ON / 80% OFF
RECOMMENDED FLUID
ISO VG 32, VI 60 Hydraulic Oil
PORT SIZE AT MANIFOLD BODY
-06 SAE ORB
PORT ADAPTERS
-
06 SAE ORB TO 1/4” NPT
OPERATING TEMPERATURE
14… 122
o
F [-
10… 50
o
C]
PRODUCT WEIGHT
22 lbs [10 kg]
