Operating Procedures for a New or Rebuilt
Engine
A new or rebuilt engine must be operated under special con-
ditions during the first 50 hours. These special conditions
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 hours 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 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 welding.
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 components,
and truck batteries. The length of storage time and the stor-
age 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 contaminates.
For safety and increased usable floor area, remove the forks
Maintenance
194
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