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 throt-
tle 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 hours of operation. Oper-
ate 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
engine speeds with a light load can cause damage to the
cylinders in the engine.
Changes to the Overhead Guard
WARNING
Do not operate the lift truck without the overhead
guard correctly fastened to the lift truck.
Do not make changes to the overhead guard by weld-
ing. Changes that are made by welding, or by drilling
holes that are too big in the wrong location, can reduce
the strength of the overhead guard.
See your dealer for Yale lift trucks BEFORE performing
any changes to the overhead guard.
How to Put Internal Combustion Engine (ICE)
Trucks in Storage
It is important to store your lift truck properly to protect it.
The main areas of concern are engines, hydraulic compo-
nents, and truck batteries. The length of storage time and
the storage location determines what procedures you
should follow.
Before placing any lift truck in storage, you must choose an
area that is clean, dry, and free from airborne contami-
nates. For safety and increased usable floor area, remove
Maintenance
196
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