Broce Broom BB-250 Series, Инструкция по обслуживанию, техническому обслуживанию и запасным частям

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OPERATION OF THE SWEEPING CORE
All functions of the sweeping core are hydraulically operated. Two control valve handles are mounted
to the right of the operator’s seat for controlling these functions. The Joystick controls the core height
up down and the right and left angle of Broom. The handle beside it controls the operation of the core
motor.
RAISE / LOWER / FLOAT DETENT
To raise the core, move the Joystick to the back, “RAISE,” position until the core is raised all the
way. The handle will return to the hold position and core height will be maintained. To lower the core
during normal sweeping conditions, move the Joystick to the front, “FLOAT DETENT,” position. The
“FLOAT” position will allow the core to maintain the ideal contact while allowing it to float over
bumps or contours in the surface. This valve is equipped with a feature called “POSITIVE DOWN
PRESSURE.” It should only be used under the heaviest sweeping conditions. The down pressure
adjustment is located between the hold position and the float detent. To adjust the core height downward,
slowly move the handle from the hold position to the lower position. The core will begin to move
downward. Release the handle when the desired height has been achieved.
NOTE:
The operator must maintain continuous adjustment on the core while the down pressure
option is being used. This feature does not allow the core to float over contours in the surface. Therefore,
the operator must constantly make these adjustments. If the broom core is forced to close to the ground,
the bristles will not have the “flicking “ action which is necessary to do a proper sweeping job. This is
why we recommend using the float detent during all but the heaviest sweeping conditions.
CAUTION:
OVER USE OF THE POSITIVE DOWN PRESSURE FEATURE WILL
CAUSE EXCESSIVE WEAR AND SHORTEN THE LIFE OF THE
BROOM.
RIGHT / LEFT ANGLE
The core may be set at any angle from 40
o
left to 40
o
right. Move the Joystick to the right and it
moves the core towards the right rear wheel. Toward the left the opposite. Release the handle when the
desires angle is achieved.
BROOM ON / BROOM OFF
The core motor is activated when the handle to the right and is moved to the front, “ROTATION
ON’ position and turned off when the handle is moved back, “ROTATION OFF” position.
NOTE:
Engine speed should be at full R.P.M. for sweeping operations. Lower engine R.P.M.’s will
exert abnormal stress on the engine and related hydraulic components which will result in a shortened
life span of these items.
4
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