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As no modications to the machine are foreseen at
the time of the writing of this manual, evaluate all
changes with consideration given to stability. When in
doubt, contact Ground Force Worldwide, or its autho-
rized representative, with any questions or concerns.
In general, avoid conditions that can lead to tipping
the machine. The machine can tip when working on
hills, banks, or side slopes. Ensure that every grade is
evaluated for the criteria listed above and other indi-
vidual circumstances before operating and that grade.
4.6 WATER SYSTEM DRAIN
The water system drain allows the operator to purge
water left in spray heads. If equipped with a water
drain system, use the Water Control System display
to activate the drain valve (See the Water Control
System section of this manual for instructions). The
water pump must be off before activating the drain
valve.
NOTICE
The drain valve must be closed before engaging the water
pump.
When the truck is started again, all valves, including
the drain valves, will automatically close.
4.7 DIESEL-FIRED HEATER
The diesel-red heating system will circulate warm
coolant through jackets surrounding the water valves.
A dedicated diesel burner is installed as a heat source.
These systems are not normally tied into the engine’s
cooling systems. The diesel burner receives its fuel
from a stand-alone tank installed on the rear of the
water tank. The fuel tank must be lled at the begin-
ning of each shift during use.
The heater will automatically shut off if it runs out of
fuel, or if uid is not being circulated.
NOTICE
Operating the heater without the engine running can drain the
chassis battery. Use a charging device if running the heater for
extended periods of time without the engine running.
Machines equipped with an independent heater
system will have an expansion/burp tank that has
been installed as the high point in the circulation
system. The level in this tank must be checked at
the beginning of each shift during use. Any visible
level is acceptable when the system is at oper-
ating temperature. The minimum tank level for a
cold system is halfway up the lower sight glass.
A control switch for the heating system is installed in
the chassis cab. The heating system receives power
directly from the chassis battery, so the switch must
be manually turned off when not in use.
NOTICE
Do not use bio-diesel in the diesel-red heater.
Do not operate if the uid level is too low.
Do not operate if the diesel fuel level is too low.
Use only Caterpillar Long Life coolant in the heating system.
4.8 FREEZE PROTECTION
If the water truck is to be parked and there is a dan-
ger of freezing, perform the following:
1. Pump as much water out as possible before
proceeding to the parking area.
2. Park the vehicle in an area with adequate
drainage and open the gravity dump valve(s),
if the water truck is equipped with dump valves.
3. Open the water cannon isolation valve (with
WCS push button on display).
a. Aim the water cannon nozzle down. This
will drain any water that would otherwise be
trapped in the water cannon.
4. Low point drain valves have been installed to
drain any residual water from the piping and
components. Look in the following areas and
open all drain valves/petcocks:
a. There is a drain installed on each spray
head standpipe to drain the portion of pipe
above the spray head isolation valve.
b. Due to individual tank congurations, some
gravity dump valves are higher in elevation
than the lowest point in the water tank. If the
gravity dump valves will not fully drain the
water tank, a drain port is installed at the
lowest point in the water tank.
c. A drain is installed in the lowest port in the
water pump housing. This is generally the
lowest point in the water distribution system.
23
OPERATION
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