Eaton Compressor & Fabrication C-STOV-MC001-E1 - Manual (Page 49)

EATON Char-Lynn Steering Catalog C-STOV-MC001-E1 July 2006 49
Steering Control
Units—Series 40
Product Description
The Series 40 steering
control unit includes two
patented designs that make
it even more responsive,
reliable and cost effective.
Benefits
• Symmetrical valving
provides passageways
and valving that are
equal in both directions
and pressure areas that
are staged for minimum
leakage. This gives
balance, precise servo
response and uniform
steering action in both
directions.
• Progressive valving
makes it possible to
produce the spool/
sleeve valve in a way
that assures reliability
and reduces costs.
• Eaton’s high capacity
gerotor assembly
provides a lot of
capacity in a small
package.
• Heavier valve
components—housing,
spool and sleeve—
provide stability,
especially during
pressure and thermal
transient conditions.
• The seal and centering
spring designs provide
positive, low-effort
steering feel assuring
excellent vehicle
control, an important
feature on large
vehicles for which this
steering control was
designed.
Features
• Open Center
• Closed Center
• Load Sensing
• Q-amp
• Pilot Pressure Port*
*This is an added feature
that can be used for:
1. pilot pressure to
priority valve.
2 diagnostics.
• Cylinder Damping
Applications
Articulated Vehicles
• Loaders
• Scrapers Frame Vehicles
• Large Front End
Loaders
• Large Graders
• Mining Trucks
• Articulated Haulers
• Transporters
SPECIFICATIONS
Max. System Pressure 241 bar [3500 PSI]
Max. Back Pressure 21 bar [300 PSI]
Rated Flow 151 l/min [40 GPM]
Max. Flow 212 l/min [56 GPM]
Max. Differential
Between Steering Unit 28° C
and System Temperature 50° F
Max. System
Operating Temperature 93°C [200° F]
Input Torque
Powered 2,8-3,4 Nm @ 6,9 bar back pressure
[25-30 lb-in @ 100 PSI back pressure]
Non Powered †††
Fluid ATF Type A and most petroleum based fluids
Recommended Filtration ISO 18/13 cleanliness level
††† Manual steering is not possible without hydraulic power.