TRANSMISSION AND DRIVE TRAIN PART 8: MAINTENANCE AND SERVICE
– 182 – Y53-6007 (R10/06)
9. Repeat for opposite headlamp.
Low beams and high beams are integrated; only low
beams need adjustment. The high beams should be
level wht the H-H line once the low beams are
adjusted the the A-A line.
Transmission And Drive Train
Clutch Adjustment
Clutch pedal free travel is usually 1 3/4 in. to 2 in. (34 to 51
mm). This should be your guide for determining whether
your truck needs clutch adjustment. Some vehicles have
automatic clutch adjustment. If yours doesn’t have this
feature, adjustment will have to be done by a trained certi
-
fied mechanic. Have the adjustment done before clutch
pedal free travel is reduced to the minimum allowable 1/2
in. (13 mm).
Fuel System
Location of Fuel Shut-off Valves
Fuel shut-off valves for the fuel crossover line are on the
bottom of the secondary fuel tank, at the crossover line
connection. They are optional on the primary fuel tank.
Specification
Use only diesel fuel as recommended by engine manufac-
turers.
WARNING! A mixture of gasoline or alcohol
with diesel fuel in the presence of an ignition
source (such as a cigarette) could cause an
explosion. You could be seriously injured.
Use only the recommended diesel fuel.
CAUTION: If anyone ever pours gasoline into
your fuel tank, drain the entire system. Other-
wise, the pump and engine will be damaged.
Don’t try to dilute the gasoline by adding die
-
sel fuel (See Warning above).
Fuel Filters
Please follow these recommendations when you are
changing your fuel filters or strainer elements. Your engine
will run better and last longer if you do. See the engine
manufacturer’s recommendations for proper water and
micron requirements.
• When removing filters, cover any electrical equipment
and wiring that might get soaked with fuel. Diesel fuel
may permanently damage electrical insulation.
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