front fenders or on either side of the radiator. Ensure
of Hoists. Drive shafts can
be bent when
improperly placed on frame contact hoists. Special care
that no foreign material clogs these intakes.
must be used when placing all vehicles on lifts.
c. Seat Belts. Seat belts which roll back into the
m. Front and Rear Soft Fascia. Many parts are
rocker panel must be pulled out before processing. Use
made of plastic; excessive rustproofing will cause
caution when processing this area so you don't coat the
distortion and unsightly appearance due to swelling. Do
not spray such areas.
d. Hoses. Air and material hoses must kept clean.
n. Overspray, If overspray is immediately wiped off
After cleaning, dry them off with a rag and coat them
fenders, doors, etc., the final cleanup process will be
with silicone spray. This will help prevent sealant from
sticking to them.
o. Underbody. If the underside of a vehicle is
processed last, the cleanup will be simplified by
e. Pedals and Windshield Wiper Blades. Use rags to
lowering the vehicle to chest level, and cleaning the
cover all of the pedals and the windshield wiper blades.
lower body first. It is much easier to clean lower
fenders, wheel covers, bumpers, grilles, and rocker
f. Disc Brakes. Conventional and disc brakes must
panels with the vehicle at this level. Lower the vehicle
never be sprayed. Ensure that you know the location of
to the floor and clean the top with solvent and
all brakes and use caution to avoid spraying them.
Cover these areas prior to processing the underside.
p. Hot Weather. To avoid excessive dripping in hot
g. Engine Compartment. When processing the
weather, note the following tips:
engine compartment, do not get material on the
transistor electrical systems, regulators, alternators,
(1) Turn the pressure down on the pump until
the spray pattern from the tools turns to a nonuniform
electrical wiring. Avoid ignition resistors, windshield
or fingerlike pattern. Turn the pressure up until the
washer solvent reservoir, heater assemblies, and
spray pattern becomes uniform. You then have the
proper spray pattern at the lowest pressure.
(2) Because material will drip more in hot
h. Firewall Exterior. Spray the complete firewall
weather, move tools quickly in order to apply the
exterior with straight rigid cone spray tool, sweeping as
compound at the required thickness with complete
i. Window Channels. Because of rustproofing's
(3) If possible, put vehicles in the sun and allow
adhesive qualities, avoid getting material into the
them to drip for a few hours. Afterwards put them in
window channels, doors, and tailgates. Material in
the shade for a half hour to cool down.
these channels can cause two kinds of damage: the
solvents in the material may affect the adhesion
q. Cold Weather. On cold days, material pumps can
between the window channel `and the channel liner,
be prevented from freezing by injecting three or four
allowing the liner to fall off or stick to the window itself;
spoonfuls of antifreeze (ethylene glycol) into the air
or the material will prevent the window from being
either lowered or raised. After processing, each window
r. Cleaning, After a vehicle has been rustproofed, it
must be checked by raising and lowering it a few times.
should never be steam cleaned. The heat from steam
Windows must be in the up position after rustproofing.
cleaning will loosen and remove the rustproofing
compounds. High pressure washers using chemical
j. Fenders. Do not neglect the exterior lower rear
detergents are adequate to meet all cleaning needs.
areas of both front and rear fenders on many vehicles.
These are subject to abrasion due to debris being
thrown upward by the tires. This abrasion can lead to
3-11. Vehicle Emission Control Precau-
k. Radiator Shutters. Many large trucks are
a. Emission control equipment is installed as an
equipped with moveable radiator shutters that open
integral part of the anti-pollution package. Federal law
automatically or manually, according to engine
prohibits covering or destroying the instruction placard,
temperature. When rustproofing vehicles so equipped
or interfering with the filter element on the emission
do not coat the shutters, hinge areas, or electrical
control canister. The instruction placard and emission
connections. Shutters which are sealed shut with
control canister are located in the engine compartment.
rustproofing material can cause the engine to overheat.