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● Check for restricted operation with other
components. Check for a buildup of top dressing
material or obstructions caught under the spinner
wheels. Spinner wheels should not rub on the
directional shields.
● Check for loose hydraulic motors or out-of-position
hydraulic motors.
● Relief valve is bypassing all hydraulic power back
to the tank.
● Hydraulic fluid level in truck reservoir too low.
● Truck pump not operating.
● Truck not equipped with HI-LO Accessory Kit.
● Damaged or non-functional motors.
● Mechanical problems with the spinner motors.
Check for sheared keys.
● Loose motor, check mounting screws and mounting
position.
Hydraulic flow leaving the spinner motors returns to
the manifold valve block, entering at port “IN”. Flow
is routed to PF2 solenoid valve and sent to power the
conveyor belt motor.
CONVEYOR BELT MOTOR
The conveyor belt motor powers the conveyor belt.
The motor is mounted at the rear of the top dresser, on
the right side of the frame.
Hydraulic power to the conveyor belt motor is controlled
at the manifold valve block by solenoid valve PF2
(located in the lower section of the block). Hydraulic
flow exits the lower section of the block at port “CF”.
The speed of the motor is controlled by the PF2 valve.
ON/OFF activation and conveyor belt speed settings
(%) for PF2 are controlled at the electronic control
box.
The motor rotates only in a clockwise direction (as
viewed from the left side of the machine) If the motor is
operating in reverse, check the possibility of reversed
connections at the motor (ports A and B) or at the
manifold valve block (ports CF and EX).
If the conveyor belt motor fails to operate, check the
following:
● Check the CAN receiver and the electronic control
box for error codes.
● Conveyor belt speed control turned down too far at
electronic control box.
● Bad electrical connection with the truck.
● Bad electrical connection at manifold block PF2
solenoid coil.
● Trucks throttle and/or governor set too low to provide
adequate engine RPM and hydraulic flow.
● Trucks hydraulic flow selector on wrong setting.
● Non-operational hand held ON/OFF switch. Check
for electrical power at solenoid PF2 on manifold
valve block.
● Non-operational PF2 valve. Valve must close for
hydraulic flow to go to motor.
● Relief valve (RV) is bypassing all hydraulic power
back to the tank.
● Hydraulic fluid level in truck reservoir too low.
● Truck pump not operating.
● Truck not equipped with HI-LO Accessory Kit.
● Damaged or non-functional motor.
● Pump drive coupling between engine and pump is
inoperable.
● Mechanical problems, check for loose or out-of-line
motor, sheared keys on coupler or broken chain on
coupler (between motor and drive roller shaft).
Hydraulic flow leaving the conveyor motor is returned
to the truck.
SERVICE LEVEL MAINTENANCE
