Alternator Servicing
The alternator supplies electrical current for charging
the battery that provides electrical power to electronic
controls. The built-in regulator in the alternator controls
the voltage output. (Figure 5-25)
Figure 5-25. Alternator
If the wires must be disconnected from the alternator, be
sure to mark them for proper reconnection.
Use the following precautions to prevent damage to the
alternator for any maintenance performed:
• Always disconnect the battery before disconnecting
or connecting the alternator.
• An alternator should never be polarized. DO NOT
ground any alternator terminals or circuits.
• Never disconnect the alternator while the machine is
operating.
• Be certain the wiring is properly connected before
connecting the battery.
HYDRAULIC SYSTEM
The hydraulic system is composed of two major
component groups--the hydrostatic drive and the
auxiliary hydraulic group. The hydraulic motors and
cylinders use the same hydraulic oil reservoir and
hydraulic oil supply. Solenoid valves, ow-control valves,
dividers and other components allow simultaneous
function and control of all hydraulic systems. A
50-gallon hydraulic tank with suction strainers, charge
pressure and return lters stores and cleans the
hydraulic uid. An oil cooler is mounted in front of the
engine radiator to complete the hydraulic system.
The hydrostatic drive group consists of an axial piston
hydrostatic pump coupled to the rear of the diesel
engine. A high-torque hydraulic motor drives the
planetary front axle. The auxiliary hydraulic group
consists of a single load-sense pump mounted on the
rear of the drive pump.
Independent circuits to the hydraulic motor are provided
for the left and right conveyor drives, hopper spreadroll
and agitator, steering system, power brakes and
gate control. The hydraulic tank is located below the
operator’s seat on the left side of the chip spreader.
ALWAYS use an equivalent grade of
hydraulic uid. Using hydraulic uids that do not
have equal characteristics can result in substandard
performance or possible failure of the hydrostatic
system. Contact your authorized Rosco LeeBoy
dealer if you need assistance.
Always wear eye protection when
inspecting for leaks in the hydraulic system. Never
use your hands to locate leaks as hydraulic uid
under pressure can pierce the skin and cause
serious injury and toxic reaction.
Never attempt makeshift repairs using
tape, clamps or cements in the hydraulic system.
The system operates under extremely high pressure
and such repairs could fail, causing serious injury.
Inspect the chip spreader for hydraulic leaks daily.
Check that all ttings are secure and tight weekly. If
leaking uid is found, it is probably on the pressure
side of the hydraulic system. DO NOT OPERATE the
machine until the hydraulic leak is repaired.
Maintenance
Rosco CSV Variable Width Chip Spreader5-20
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