Observation Maintenance Operation
Insufficient power shown in loaded
practice stop.Inspect the automatic slack
adjuster function.
Subpar vehicle handling qualities. Check the operation of the brakes,
clutch and steering.
1,2
Excessive noise from under the
cab or engine compartment.Inspect the vehicle for missing,
damaged or mislocated noise
shields.
Excessive engine noise. Check the engine performance and
the engine governor.
Engine overheats; excessive fan
noise; fan constantly runs at high
speed or wobbles due to worn
bearings.Inspect the fan, fan shroud and fan
clutch.
Excessive exhaust noise; smell of
exhaust fumes is experienced.Inspect the entire exhaust system
for holes, leaks, breakage,
looseness and corrosive damage.
Excessive engine compartment
noise.Inspect the engine air induction
system (including air ducts and air
filter) for loose, damaged or
missing components.
Poor steering; wandering;
excessive tire wear.Check front end alignment, inspect
the tires and tire pressure.
3
Vibration or abnormal tire wear
indicating imbalance.Balance the wheels and the tires.
Hard shifting or excessive
vibration.Check the transmission and engine
mountings.
2
High effort to shift; noisy
transmission.Check and adjust transmission
controls.2
Insufficient full-throttle power;
backfiring.Check fuel pump pressure.
Radiator cap does not hold
pressure.Clean the cap seal and cap surface
on the radiator.
Electrical power supply has
diminished.Check the battery terminals for
corrosion.
Scheduled Maintenance287
2013 F-650/750(f67)
Owners Guide gf, 2nd Printing, March 2013
USA(fus)
