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the warning horn to sound.
Start with a slow rate and then increase as
required. Once adjusted, the unloading rate will
remain constant for the same type of material.
Further application rate adjustment can be obtained
by regulating the tractor ground speed. The
application rate is not affected by engine RPM.
Spread Pattern
The spread pattern is affected by the speed of the
rotating beaters. The two beater hydraulic motors
are powered independently by a two stage
hydraulic pump on the spreader. This pump is
powered by the tractor PTO. The spreader is
designed to give a uniform spread pattern when the
tractor engine is operated at 1000 PTO RPM for
typical materials. Adjustment of the beater speed
and spread pattern is regulated by the engine
speed.
PRE OPERATION
UNDERSTAND THE CONTROLS
Rear Gate
The rear gate cylinders are hydraulically controlled
by a tractor spool valve. It is recommended that the
hoses be connected to the tractor so pulling the
spool valve lever back raises the gate and pushing
the valve lever forward closes it. Make it a habit to
connect the hoses the same so the Operator is
familiar with this operation.
Sliding Gate
The unloading belt which moves the sliding gate is
powered by a hydraulic motor and planetary
gearbox. This motor is powered from the tractor
hydraulic system and started and stopped by the
tractor spool valve for the port to which this motor is
connected. It is recommended that the hoses be
connected to the tractor so pulling the spool valve
lever back starts the gate rearward and pushing the
valve lever forward returns the gate to the front.
The gate can be stopped by moving the spool valve
lever to the neutral detent. Make it a habit to
connect the hoses the same so the Operator is
familiar with this operation.
NOTE:
Set the tractor hydraulic selective control
valve to 8 - 12 gallons per minute. To much
hydraulic flow will cause the floor belt and sliding
gate to stop and not move, to little flow will cause
the belt and sliding gate to move to slowly.
When the sliding gate reaches the rear of the
spreader it will bear against mechanical stops. The
tractor hydraulic system will sense increased
hydraulic pressure and return the spool valve to the
neutral OFF position. The same process occurs
when returning the gate to the front.
Rate Of Application
The rate of application is determined by how fast
the sliding gate and belt (floor) progresses toward
the rear of the spreader. This is regulated by a
remote adjusted flow control valve in the tractor.
See figure 1.
The remote flow control knob is turned CW to
increase the rate and CCW to decrease the rate.
Completely CCW is OFF.
NOTE: If the belt speed is too fast the material will
overload the beaters and cause them to stall and
FIGURE 1. FLOW CONTROL
REMOTE FLOW CONTROL
(located in tractor cab)
Содержание Roto-Spread 532-16B
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