TM-5-3805-254-14-P-1
TRUCK, DUMP, 20 TON, 6X4, ON-OFF HIGHWAY 71,000 GVW, IHC MODEL F-5070 (CCE)
TECHNICAL MANUAL; OPERATOR'S, ORGANIZATIONAL, DIRECT SUPPORT, GENERAL SUPPORT AND DEPOT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS INFORMATION AND SUPPLEMENTAL MAINTENANCE INSTRUCTIONS)
AUGUST 1980
TM-5-3805-254-14-P-1 - Page 9 of 590
OPERATION
BREAK-IN DIESEL ENGINE (Except IH Diesel Engines)
The way you operate your new engine during the
first 100 hours' service will have an important effect on
the life of the engine and its parts.
Its moving parts are
closely fitted for long service, and even though all diesel
engines are run on a dynamometer for several hours
before they leave the factory, an additional period may
be required before uniform oil films are established
between all mating parts.
During the first 100 hours' service:
1.
Operate most of the time at one-half to three-
quarters throttle.
Do not operate at maximum
horsepower for more than five minutes at a time.
2.
Do not idle the engine for long periods.
3.
Keep a close watch on your instruments.
Back
off on throttle if water temperature exceeds 190 degree
F.
4.
Drive in a gear low enough so that you can
accelerate under any condition to prevent lugging your
engine.
DO NOT LUG THE ENGINE AT ANY TIME.
"During this break-in period, avoid full throttle starts
and, if possible, abrupt stops.
Gentle braking during the
first hundred miles of operation will result in longer brake
life and better future performance.
Avoid hard stops
especially during the first 250 miles of operation, since
brake misuse during this period could sharply reduce
future brake efficiency."
3
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