RB48 BROOM
ROSCO - A LeeBoy Company
Operation 3. 2
OPERATION
GENERAL
It is very important that ROSCO Broom owners and operators fully realize the overall operating
characteristics of the equipment furnished. An understanding of the operating procedures will
ensure safe operation and high productivity. Please study this manual BEFORE operating or
servicing the broom.
The ROSCO Broom is a fully hydrostatic, self-propelled unit. The Hydrostatic Drive System and
Hydraulic System, which powers the steering and brush drive, have one common oil reservoir.
GENERAL DESCRIPTION
Hydrostatic Drive System - This system propels
the Sweeper forward and reverse with dynamic
braking. The system consists of a variable
displacement pump driven off the rear of the diesel
engine which provides power to a variable
displacement motor, and which in turn drives a
mechanical rear axle through a drive shaft and
gear transfer case arrangement.
Hydrostatic Drive Control - Control for the Drive
System is provided by a manually operated lever
at the driver's platform, located on the right side of
the seat. A neutral position, that activates a
neutral start switch, is included between forward
and reverse directions of the control lever, which
provides for easy and safe starting of the broom.
There is also a toggle switch to engage the
transmission Speed Selector.
Never decelerate or change
direction rapidly. Changing
direction rapidly may cause excess
heat and pressure in the
hydrostatic drive system. This can
shorten the system component
life.
Steering & Brush Hydraulic System - A
hydraulic pump, which is directly connected to the
Hydrostatic System pump, has a built-in priority
flow divider. The divider provides priority flow to
the steering system and the brush lift and swing
valves at approximately 4 gallons per minute.
Excess flow from the pump provides power for the
brush drive motor. The steering flow always
receives the priority flow so it is always powered.
Steering - Steering is performed by a
hydraulically powered orbital system and operated
by a steering wheel. In the event of a hydraulic
power failure, the machine can still be steered.
Brush Control - The brush drive speed is
regulated by the engine speed. Control of the
brush lift and swing is done by push buttons on
the travel control lever, which operate solenoid
controlled hydraulic valves.
To Next Page
Loading...