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COLD WEATHER OPERATION OF HYDRO DRIVE
In the event of cold weather operating conditions (temps < 35F), it is recommended to add supplementary heat to the
hydraulic oil reservoir in order to aid in quicker and easier start ups. Thermostatically controlled magnetic tank heaters (or
similar type heaters) can be used to warm the oil near the suction line of the tank. Follow the manufacturers guidlines for
using the heaters. It is recommended not to operate the truck faster than an idle or engage the hydro until the oil tem-
perature is near 40F. If the oil is colder than this, the pumps may be starved of oil and damage of the pumps (both hydro-
static and auxiliary) may occur.
-DO NOT Bottom out a gate cylinder so oil goes over the relief in the valve to make the oil heat faster!
-DO NOT Run the hydrostatic pump control until the oil has warmed up!
HYDROSTATIC PUMP SYSTEM
The augers and the reel are independantly powered by seperate hydrostatic pumps which are powered by a single
driveshaft from the engine. The pumps can be set up for either CCW (counter clockwise) or CW (clockwise) rotation.
Typically, if the pumps are mounted in front of the engine, CCW pumps are installed and CW pumps are used if the
pumps are installed behind the engine.
Each hydrostatic pump is actuated by an electrical solenoid which is operated from the cab. Each hydro can be
controlled independently.
AUXILIARY PUMP SYSTEM
Located on the end of the hydrostatic pumps is a single auxiliary hydraulic gear pump. The pump is powered by the main
driveline for the machine which ensures hydraulic power is available at all times provided that the truck engine is running.
The auxiliary pump provides hydraulic fluid power to components such as the unloading door and the discharge chute.
The auxiliary pump is designed for minimal maintenance and service.
OPERATION
REPLACEMENT PARTS
Hydrostatic pumps
Page # 17
READ complete manual CAREFULLY
BEFORE attempting operation.
Charge Filter
FILTER SHOWN:
SAC PART #
HYDP176566
Auxiliary pump
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