Ford F-650 2015 Owner's Manual page 353

352
Scheduled Maintenance Services
Maintenance service adjustments must conform to specifications
contained in this manual, and those shown on the Important Engine
Information decal. Perform the following services at scheduled intervals
because they essential to the life and performance of your vehicle. Ford
recommends that you perform maintenance on all designated items to
achieve best vehicle operation.
There are three types of maintenance intervals for general vehicle
environments: On-Highway, City and Severe Service. In all applications,
monitoring miles (kilometers) and time and when the engine is due for
an oil change determine the actual interval. When the engine oil change
is required before the truck lubrication interval, perform the lubrication
at the same time in order to reduce your vehicle's time out of service.
Air Brake Adjustment
WARNING: Failure to maintain proper air brake adjustment can
result in reduction or loss of braking ability.
A qualified service technician, keeping to the instructions in the service
manual, should perform air brake inspection and adjustment or repairs.
Cam Brakes - Automatic Slack Adjusters
WARNING: Do not manually adjust the automatic slack adjusters
to correct excessive push rod stroke as it may result in reduced
brake effectiveness and a vehicle crash. Excessive push rod stroke
indicates that a problem exists with the automatic adjuster, with the
installation of the adjuster, or with foundation brake components that
manual adjustment does not remedy. Seek service from a qualified
facility for excessive push rod stroke.
Inspect standard air brakes equipped with automatic slack adjusters for
proper brake adjustment as listed in the maintenance schedule charts.
However, inspect the brakes more frequently when subjecting them to
heavy use or adverse operating conditions such as:
• Frequent brake applications while fully loaded.
• Operation on hilly or mountainous terrain.
• Frequent operation on dirt, gravel or mud.
Some aftermarket brake linings also require more frequent inspections.
2015 F-650/750 (f67)
Owners Guide gf, 2nd Printing, April 2014
USA (fus)
Scheduled Maintenance