Service Manual

Topdresser 1800 & 2500 Hydraulic SystemPage 3 – 9
Topdresser 1800 Operation
Hydraulic flow for the Topdresser 1800 is provided by
the Workman remote hydraulic system. Hydraulic flow
(GPM/LPM) and relief pressure, therefore, are deter-
mined by the Workman.
When the Workman hydraulic control is in the OFF posi-
tion, no flow is directed to the Topdresser so there is no
operation of the brush or conveyor motors.
When the Workman hydraulic control is moved to the
RUN position, flow from the Workman is directed to the
Topdresser brush motor and then to the conveyor motor.
Hydraulic flow causes rotation of both the brush motor
and the conveyor motor which are connected in series.
Oil from the Topdresser returns back to the Workman.
The brush is driven directly by the hydraulic brush motor.
The conveyor belt is driven by the hydraulic conveyor
motor with a chain reduction.
Hydraulic
System