Rosco RB48 - Steering, Axles, and Hydraulic Systems

Introduction
1.6
ROSCO - A LeeBoy Company
RB48 BROOM
ENGINE - PERKINS
Type ............................................................................. 4-Cylinder, Water Cooled, Diesel
Make and Model ......................................................................................Perkins 1004.42
Displacement.......................................................................................... 258 in
3
(4.2 liters)
Bore ................................................................................................ 4.05 inches (103 mm)
Stroke ............................................................................................... 5.0 inches (127 mm)
Power @ 2500 RPM................................................................................... 85 HP (63 kw)
Ignition System ....................................................................................................... 12 volt
Battery ......................................................................................... 12 volt, 950 CCA Rated
Alternator ....................................................................................................60 Amp Rated
Air Cleaner ..................................................................................Dry Type, Dual Element
Oil Filter .............................................................................................................. Full Flow
Oil Capacity ..................................................................................... 11 quarts (10.4 liters)
Idle Speed ..........................................................................................................800 RPM
Fuel Tank Capacity ................................................................... 30 US Gallon (114 liters)
Cooling System Capacity ................................................................... 4 gallons (15 liters)
STEERING
Type ................................... Full Hydraulic, Orbitrol Motor, w/Automotive Steering Wheel
.....................................................3.7 GPM (14 LPM) Priority Flow at 1500 PSI (10 MPa)
FRONT AXLE
Type ...........................................................................Heavy Duty Truck-type, Oscillating
Brakes ...................................................................................................................... None
HYDROSTATIC DRIVE SYSTEM
Pump, Make and Model............................................................. Sauer/Danfoss 40 Series
Pump, Displacement ................................................................................. 2.8 CIR (46 cc)
Motor, Make and Model ............................................................. Sauer/Danfoss 40 Series
Motor, Displacement, 2-Speed .................................................................. 2.8 CIR (46 cc)
Hydraulic Reservoir ...................................................................25 US Gallon (94.6 liters)
Fluid Type ..................................................................... See Chart, Maintenance Section
Filter(s) ..........................................................................................7 Micron Spin-on Type
Oil Cooler ................................................................................................ Flow-Thru Type
FINAL DRIVE SYSTEM
Gear Box ..................................................................................................... 4.533:1 Ratio
Rear Axle, Differential-type, Semi Float......................................................... 3.55:1 Ratio
................................................................ Drum-Type Hydraulic Brakes w/Parking Brake
SPECIFICATIONS
DRIVE TRAIN - Continued