Specification
Use only diesel fuel as recommended by
engine manufacturers.
WARNING
Diesel fuel in the presence of an igni-
tion source could cause an explosion.
A mixture of gasoline or alcohol with
diesel fuel increases this risk of explo-
sion. DO NOT remove a fuel tank cap
near an open flame. Use only the fuel
and/or additives recommended for
your engine. Failure to comply may re-
sult in death, personal injury, equip-
ment or property damage.
CAUTION
If anyone ever pours gasoline into your
fuel tank, drain the entire system. Oth-
erwise, the pump and engine will be
damaged. DO NOT try to dilute the
gasoline by adding diesel fuel (see
Warning above).
Fuel Filters
See Engine Manufacturer’s Operator
Manual provided with this chassis.
Draining the Primary Fuel Filter
The following tools are suggested for this
procedure:
• Container (1 liter capacity)
(optional)
• 3/8" diameter rubber hose
(optional)
Perform with engine OFF. Cover any
electrical equipment and wiring that might
get soaked with fuel – diesel fuel may
permanently damage electrical insulation.
If draining to replace filter, drain into
container with a minimum 1 liter (1 qt)
capacity, and use hose to route fluid.
1. Open the hood (see How to open
the hood on page 17), and locate
the primary fuel filter.
2. Open drain valve (by hand only)
until draining occurs.
If draining to replace the filter,
before opening valve, push one
end of hose onto drain valve and
route other end to the container.
3. Drain fluid from filter assembly:
• If draining water from fuel, drain
filter bowl of water until clear
fuel is visible, then close drain
valve, or
• If replacing filter, drain until flow
stops, then close valve.
CAUTION
Do not overtighten the
valve. Over tightening can
damage the threads.
If a hose was used to drain fluid,
remove hose.
If entire filter assembly was drained,
proceed to Replacing the Primary Fuel
Filter.
Replacing the Primary Fuel Filter
The following tools are suggested for this
procedure:
• Bowl wrench RK61680
• 1" wrench
• New PACCAR primary fuel filter
element designed for this
application
• 2 new O-rings
MAINTENANCE - Fuel System
Y53-6076-1D1 (09/20) 249
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