MAINTENANCE
127
OPERATING PROCEDURES FOR A NEW OR
REBUILT ENGINE
A new or rebuilt engine must be operated under special
conditions during the first 50 hours. These special condi-
tions prevent damage to the engine until the new parts can
wear and adjust to fit each other.
1. Make sure the fluid levels of oil and coolant are correct.
2. Start and run the engine at approximately one--half
throttle for 30 minutes for the first operation. Check the
gauges and indicators for the correct operation during this
first operating period. Check for leaks.
3. If the work conditions are slow and the loads are less
than 50% of the truck capacity, a simulated work condition
must be used during the first four of operation. Operate
the lift truck with a minimum load of 75% capacity. Operate
the engine through cycles from idle to full throttle and back
to idle. Avoid long periods of high engine speeds with a
light load during the first 50 hours of operation. High en-
gine speeds with a light load can cause damage to the
cylinders in the engine.
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