4-2
Generator Tools
Lead or dead-blow hammer
VOM Multi-Tester
Frequency Meter
Load test panel and leads
REMOVING THE GENSET
Due to the wide variety of installations, it is not pos-
sible to provide specific procedures for removal.
Contact the coach manufacturer or installer for their
recommendations if it is unclear how the genset is to
be removed.
Below-Floor Mounting: Four 3/8 inch bolts into the
ends or bottom of the base (Figure 4-1) are used to
secure the genset to special brackets from the ve-
hicle floor or frame or to frame members underneath
(Figure 4-1). The area above the genset should
have a vapor-tight, fire-resistive barrier between the
genset and coach interior.
Above-Floor, Compartment Mounting: Four 3/8
inch bolts into bottom of the base (Figure 4-1) are
used to secure the genset to the floor of the
compartment. The compartment should have a va-
por-tight, fire-resistive barrier that seals off the gen-
set from the coach interior.
Disconnecting the Genset
Disconnect battery, wiring, exhaust and fuel con-
nections as follows before removing the genset.
1. Disconnect all battery cables (negative [–] first)
at the battery(ies) terminals.
WARNING
Arcing at battery terminals or
light switch or other equipment or flames
and sparks can ignite battery gas causing
severe personal injury—Ventilate battery
area before working on or near battery—
Wear safety glasses—Do not smoke—
Switch trouble light ON / OFF away from bat-
tery—Do not disconnect battery cables
while genset is running or vehicle battery
charging system is on—Always disconnect
negative (–) cable first and reconnect it last.
2. Disconnect the negative (–) and positive (+)
battery cables at the genset.
3. Disconnect the wiring connectors for remote
control and remote fuel pump (fuel injection
models).
4. Disconnect the generator AC output wires and
conduit from the junction box on the vehicle.
5. Disconnect the exhaust tail pipe.
6. Gasoline-Fueled Gensets: Disconnect the
fuel line(s) from the genset and securely plug
the end of the fuel line to prevent leakage or an
accumulation of explosive gasoline vapor.
7. LPG-Fueled Gensets: Close the fuel shutoff
valve(s) at the LPG container(s) and move the
vehicle outside and away from below-grade
spaces where LPG could accumulate. To purge
most of the LPG from the fuel line and genset,
run the genset (if it starts) until it runs out of fuel
(LPG container valve closed). Disconnect the
fuel line from the genset and plug the end of the
hose to prevent fuel from escaping if someone
inadvertently opens the shutoff valve(s) at the
LPG container(s).
WARNING
Gasoline and LPG (liquified pe-
troleum gas) are flammable and explosive
and can cause severe personal injury or
death. Do not smoke. Keep flames, sparks,
pilot lights, arc-producing and switching
equipment, and all other sources of ignition
away from fuel tank and system, and areas
sharing ventilation. Have an ABC fire extin-
guisher handy.
WARNING
LPG is flammable and explo-
sive and can cause asphyxiation. NFPA 58,
Section 1.6 requires all persons handling
LPG to be trained in proper handling and
operating procedures.
LPG “sinks” and can accumulate in explo-
sive concentrations. Before disconnecting
the LPG fuel line, close the fuel shutoff
valve(s) at the LPG container(s) and move
the vehicle outside and away from pits,
basements, and other below-grade spaces
where LPG could accumulate.
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