GROUND FORCE 717H01 - Page 18

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3.5 LOOSE PARTS
The oodlights are removed from the truck after test-
ing and shipped as loose parts. This is to prevent
damage during shipping. The oodlights should be
re-installed and re-connected. There may be other
loose parts shipped as well (bumpers, handrails,
wheel chock holders, etc.) Refer to the overview
drawings (or any specic instructions provided) and
install these parts in their proper locations.
3.6 LIGHTING SYSTEMS
Note that lighting systems will only work on this body
with the ignition key on. Refer to the Ground Force
Worldwide Owner’s Manual for specic information.
• Verify that all headlights, marker lights, turn signals,
beacons, etc. work properly. Also check that the back-
up alarm works.
• Check all exterior oodlights for proper operation.
• Check that any interior compartment lights are working
properly.
3.7 CUSTOMER-INSTALLED COMPONENTS
Some components required for operation of this truck
are supplied by the customer. These include items
such as additional lighting or visibility items, quick
disconnect (QD) couplings for tank lling, extra re
extinguishers or re suppression systems, placards
and signs relating to specic products to be placed in
the product tanks, etc. Determine what components
(if any) are required and install them prior to lling
any product or foam tanks or placing truck in service.
3.8 PRE-START CHECKS
Refer to the vehicle owner’s manual and perform all
new unit break-in and pre-startup inspections.
3.9 ENGAGING HYDRAULIC SYSTEM
Once all of the above steps are complete, start the
truck and engage the hydraulic system. When the
hydraulic system is properly engaged and there is no
hydraulic demand, the system standby pressure will be
indicated on the system pressure gauge at the opera-
tor’s station. This indicated pressure will rise and fall
based on hydraulic system demand.
3.10 WATER PUMP ROTATION
Reversing the operation of a centrifugal water pump
will result in poor water pump performance and will
lead to water pump damage. Verify the direction of
the water pump’s rotation before initial testing.
The water pump will not operate without water in the
tank above the low-level shut off set point. If it is nec-
essary to test without water in the tank, jumper the
wires on the low-level oat on the front head of the
tank. Contact Ground Force for more information.
WARNING
Do not run the pump for more than a couple of seconds.
Running a dry pump can cause pump damage.
3.11 ELECTRICAL CONTROL CHECKS
Perform the below checks with the ignition key on
but the engine not running. It is often convenient to
perform these checks before lling the water tank. It
may be necessary to engage the hydraulic system for
some of these checks.
• Check all lighting circuits and the back-up alarm.
• The low level shutdown circuit must be tested prior
to lling the tank with water. Turn the water pump
control switch to on while observing the low level
shutdown timer. The timer should shift and break the
pump’s electrical control circuit after ve seconds.
• Check that the spray head controls energize the
correct solenoid coil. Check that the buttery valve
controls operate the correct valve in the proper
direction.
• Verify that the water cannon responds correctly to
the directional controls.
3.12 INITIAL START UP
1. Start the truck and allow the engine to warm up
according to the manufacturer’s instructions.
2. Verify that the hydraulic system engages and
that the water pump direction of rotation is
correct.
3. Refer to the Operation section in this manual.
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