Rayco RG74T-R Operator, Service, Maintenance Manual page 7

General
Weight: 5200 Lbs Maximum
Length: 150" Maximum
Height: 63" Maximum (Exhaust), 57" (Hood)
Width: 35" Maximum, 51" Maximum (Tracks Expanded)
Ground Clearance: 7.5" Minimum
Chassis Design: Electrically welded formed, Structural Steel 1/4",
3/8", 5/8", 3/4"
Self-Propel Means: Hydraulic/Planetary Wheel Motor @ each
sprocket
Swing Pivot Bearings: 1-3/4" Greaseless Composite Bushings
Cylinder Pivot Points: 1", 1-1/4", Greaseless Composite Bushings
Warning Lights: Display includes warning lights and error mes-
sages to easily troubleshoot warnings.
Engine
Model: Cummins 3.8L, Tier 4/Stage IV, Vertical 4-cycle, Turbo-
charged, Intercooler, Liquid Cooled, diesel
Number of cylinders: 4
Displacement: 229 cu. in
Maximum no load RPM: 2500
Gross HP at maximum no load RPM: 74 HP
Maximum rated torque: 295ft lbs @1300 RPM
Cooling medium: liquid cooled
Air Cleaner: Dry type with Pre-Cleaner
Oil Filter: Spin-on type
Fuel Tank Capacity: 15 gallons
Electrical System: 12 volts/135 AMP Alternator
Safety: Elastometric engine mounts required
Engine: to be operable on (up to) a 30° slope with the cutter wheel
in the full up or down position
Hydraulic System - Cutter
Cutter Pump: Variable displacement axial piston
Cutter Motor: Fixed displacement axial piston
Cutter Pump Displacement: Electronic controlled with neutral start
Command Cut: Swing speed control and horsepower optimizer
Filter: Easy access suction filter and pressure filter
Cutter System Pressure Relief: 5000 PSI
800.392.2686
RG74T-R Operator · Service · Maintenance
Lift & swing cylinders: 2 ½" bore x 7-3/8" stroke, 1-1/8" rod
Oil Type: Tellus T46
Hydraulic Tank Capacity: 13.5 Gallons
Hydraulic Track Drive System
Track Drive Pump: Gear
Track Drive Motors: Axial 2-speed piston motor
Control Valve: Manifold Type Electronic Control
System Pressure Relief: 3200PSI
Cutting Wheel
Wheel Diameter: 23" Maximum
Wheel Thickness: 1 1/2"
Cutting Wheel Bearings: 2-3/16" diameter double row spherical
roller
Cutter Wheel RPM: Variable speed dependant on engine RPM
from 0 to1000 RPM
Drive Belt: MBL GigaTorque®
Cutting Teeth: RAYCO Super tooth™ forged,
one piece, with tungsten carbide tips.
Cutter Teeth Quantity: 30 Maximum
Belt Guard: Steel, one piece
Chip Retaining Curtains: two ply nylon neoprene, three ply belting
grade 2
Cutter Wheel: Must come to a stop in less than three seconds
without shutting off engine
Cutter Wheel Engagement: Hydrostatic pump. No clutch neces-
sary
Cutting Range (without repositioning)
Below Ground Level: 21"
Above Ground Level: 32"
True Cutting Width (NOT ARC): 73"
Forward - Backward: Self-propelled unlimited
Foreword
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