Table of Contents
Advertisement
Driving
CLUTCH (IF EQUIPPED)
Do not ride or slip the clutch as this will cause unnecessary heat and
wear. Maintain the specified clutch adjustment to prolong its life and
regularly inspect the clutch control linkage for tightness. Refer to the
Scheduled Maintenance Guide chapter for other maintenance
information. When adjustment of the clutch is necessary, it is very
important that the work be performed properly or early clutch failure
may result and a costly clutch overhaul may become necessary. Clutch
work should only be performed by a qualified technician.
Engaging the clutch
• Always start in the proper gear. An empty vehicle can start in a
higher gear than a fully loaded vehicle. Starting in too high a gear can
cause clutch slippage and excessive heat and wear on the clutch. A
gear that will start the vehicle moving at idle speed is the correct gear.
If the engine has to be revved to get the vehicle going, the gear
selection is too high.
• Do not shift until the vehicle has reached the proper speed.
Upshifting before the vehicle has reached the proper speed can cause
clutch slippage and excessive heat and wear on the clutch.
• Never hold a vehicle on a grade with the clutch. This will cause
the clutch to slip and can actually burn up the clutch.
• Never coast with the clutch disengaged. The high RPM
(sometimes over 10,000), can actually burst the facing material of the
clutch.
• Never engage the clutch while coasting. Re-engaging the clutch
after coasting may not only cause a great shock to the clutch, but the
whole drivetrain. Internal engine damage and/or clutch and flywheel
failure can result from this.
If your vehicle's transmission is equipped with a ceramic clutch, you
must start the vehicle moving in first gear and engage the clutch before
pressing the accelerator at idle. Also, don't try to slip the clutch by
raising engine RPM and riding or feathering the clutch pedal since the
vehicle will experience erratic engagement. Erratic engagement can
cause the engine stalling and potential serious damage to the vehicle's
driveline components.
126
2009 F-650/750 (f67)
Supplement
USA (fus)
Advertisement
Table of Contents
