Eaton Compressor & Fabrication C-STOV-MC001-E1 - Manual (Page 22)

22 EATON Steering Catalog C-STOV-MC001-E1 May 2006
Steering Control
Units—Series 5
Product
Description
The new Series 5 steering
control units (SCU) are
exciting new products
designed for low flow, low
pressure applications.
The Series 5 units are
available in two compact
designs:
Option 1:
Square Housing (Mount)
Unit with Side Ports
Option 2:
Round Housing (Mount) Unit
with End Ports
In addition to the installation
flexibility provided by the
two options above, this new
family of products has best-
in-class steering feel and
provides crisp centering.
These units also have better
efficiency (lower pressure
drop) than competitive units.
Power Beyond Models—
Optional power beyond
steering control units supply
steering and flow to auxiliary
valve functions. The power
beyond unit is used in open
center (fixed displacement
pump) systems in the
medium pressure range.
When not steering, the
power beyond unit directs all
inlet flow to the excess flow
port (power beyond) for use
in the auxiliary circuit. Once
steering is initiated, and
since steering has priority,
inlet flow will be diverted to
the steering circuit as
required. Flow out the
excess flow port (power
beyond) and tank port will
vary or stop depending upon
the steering requirement.
The tank port of the steering
unit has flow only when
steering is operating.
SPECIFICATIONS
Max. System Pressure 140 bar [2030 PSI]
Max. Back Pressure 21 bar [ 300 PSI]
Max. Flow 19 l/min [5 GPM]
Max. Differential
Between Steering Unit 28° C
and System Temperature 50° F
Max. System Operating Temperature 93°C [200° F]
Input Torque
Powered -Standard 1,7 - 2,8 Nm @ 6,9 bar tank pressure
[15 - 25 lb-in @ 100 PSI tank pressure]
Low 1,1 - 2,0 Nm @ 6,9 bar tank pressure
[10 - 17.5 lb-in @ 100 PSI tank pressure]
Max. Non Powered 81,4 Nm [60 lb-ft]
Fluid Petroleum Based Fluids
Recommended Filtration ISO 18/13 cleanliness level
Port Options 9/16-18 SAE O-ring
– 06 STC
3/8 BSP Straight thread ports
Check Valve for Manual Steering Yes
Optional Relief Valve Settings
bar [PSI] 40 [ 580]
50 [ 725]
63 [ 914]
70 [1015]
80 [1160]
90 [1305]
100 [1450]
125 [1812]
Option 1: Square Housing
with Side Ports
refer to Model Code, page 23
Option 2: Round Housing
with End Ports
refer to Model Code, page 24
Features
• Open Center
• Load Sensing
• Open Center
Power Beyond
• Integral Column
• Manual Steering
Check Valve
• Inlet Relief Valve
• Load Sense Relief Valve
• Cylinder Relief Valve
• Anti-Cavitation Valve
Applications
• Lawn and Garden
Equipment
• Turf Equipment
• Golf Course
Maintenance
Equipment
• Lift Trucks
• Compact Utility Tractors