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Section 2 - Rumble Hog Systems
is open prior to engaging the water pump. If the
pump is engaged while this valve is closed or
there is no water in the tank, the cutter will not
be cooled properly and the pump impeller will
likely be damaged.
The water pump is activated by engaging the
auxiliary PTO and pressing button 5 on the digital
control panel in the cab of the truck. Once acti-
vated, the pressure gauge in the digital control
panel should rise immediately above 10 psi (7
BAR) and continue climbing to normal operating
pressure, approximately 50 - 60 PSI (2.8 - 4.1
Bar). Refer to Startup Procedure in the Operation
section of this manual for additional startup and
operating instructions.
Water supply problems are indicated by low water
pressure or by the sound of the pump. Fluctuat-
ing pump RPM, inconsistent high pitch whines
and fluctuating water pressure are indications
of a water supply problem to the water pump. If
the pressure does not immediately rise and the
pump is whining, immediately turn the pump off.
Make sure the supply valve is open and/or bleed
the air from the system. Operators should be
familiar with the normal sound of the pump and
be prepared to turn off the pump and cutter if
the sound changes. Find and correct the problem
before cutting operations resume.
2.6 handheld pressure washer
A pressure washer is mounted to the chassis below
the charge water pump. It provides up to 4000
psi (276 BAR) to the handheld spray gun. The
pressure hose and spray gun connect to a high
pressure disconnect fitting on the pump and are
stored in the tool box when the handheld pressure
washer is not being used.
The pressure washer is powered by the hydraulic
system. A manually operated hydraulic pressure
ON/OFF valve and a flow control valve supply
pressurized hydraulic fluid to the hydraulic motor
that powers the pump. The flow control valve is
equipped with colored rings that indicate the valve
setting for reference.
A ball valve on the water line turns the water sup-
ply to the pressure pump on or off. Pressurized
water from the clean water tank is provided to
the pump by the water system pressure pump.
Handheld Pressure Washer
Always make sure to close the hydraulic pressure
and water ball valves whenever the pump is not
being used.
Refer to the Operation chapter for procedures
to activate and shutdown the handheld pressure
washer.
Hydraulic Pressure ON/OFF Valve & Flow Control Valve
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