Burrows Enterprises ROTO GRIND 1090, Руководство оператора и каталог запасных частей

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FLOW
DIVIDER
SOLENOID
VALVE
HYDRAULIC
MOTOR
SUPPLY LINE
FROM TRACTOR
CONSTANT
FLOW
The function of the governor / speed sensor is to send a 12 volt current to the solenoid valve when
the desired PTO RPM is reached. This will close the valve and force the oil to go through the
hydraulic motor and rotate the tub in the proper clockwise rotation. When a heavy load lowers the
PTO RPM, the governor will cut off the 12 volt current to the solenoid valve and allow the valve
to return to its normal open position which lets the oil go through it instead of the hydraulic
motor. This stops the tub rotation and allows the power unit to return to normal speed at which
time the governor will re-introduce the 12 volt current to the valve to close it and the oil will
again go through the hydraulic motor to start the tub rotation and resume grinding.
Since the introduction of the " ALFALFA HAMMERS" which are designed to grind
good quality alfalfa at 540 RPM PTO speed instead of the normal 1000 RPM, it is necessary to
reset the governor / speed sensor to start and stop the tub at the lower RPM. There are some cases
where the customer would like to be able to grind at both 540 RPM for alfalfa and at 1000 RPM
for other feeds. This requires two front halves of the PTO to be able to switch speeds. The
installation of all alfalfa hammers in the machine, produces excessive" blow" at 1000 RPM. We
recommend either half alfalfa hammers and half standard hammers or a set of pins to tie the
standard hammers to the lead hammer. The reason that the hammers must be pinned together is
that at the lower 540 RPM, the lead hammer is not heavy enough to stay extended to tear the
material off of the bale. Pinning them together adds the weight of the standard hammers plus the
pin to the weight momentum of the lead hammer which will keep it extended at the lower RPM's,
and eliminate excess wear on the hammer pin.
NOTE: CAUTION
540 -RPM operation is not recommended for tough grass hay grinding. It will rock the hammers back
to the point where the hammers will create excess wear, and void your warranty
.
ROTO GRIND HYDRAULIC SCHEMATIC
TRACTOR INPUT HYDRAULIC OIL FLOWS THROUGH THE FLOW DIVIDER, SOLENOID &
CHECK VALVE UNTIL THE ROTOR REACHES OPERATING SPEED. WHEN OPERATING SPEED
IS REACHED, THE GOVERNOR SENDS CURRENT TO THE NORMALLY OPEN SOLENOID. THE
SOLENOID CLOSES AND SENDS OIL TO THE HYDRAULIC MOTOR TO ROTATE THE TUB.
CHECK
VALVE
EXCESS
FLOW
RETURN LINE
TO TRACTOR