ENGINE TEST PROCEDURE
INITIAL OPERATION AFTER ENGINE
The quality of oil control components used in
Caterpillar engines is such that, following engine
reconditioning (with Caterpillar Service Parts), only an
initial operational check is necessary before continued
operation in normal service.
The purpose of this initial operational check is to:
insure that the engine has been assembled properly;
determine if proper pressures and temperatures are
maintained in the lubrication, cooling and fuel systems;
correct any leaks; perform necessary adjustments (such
as valve clearance, governor high and low idle speeds,
etc.); check the power setting of the engine.
To provide a safe, uniform initial operational check,
the following procedure is recommended:
Motor engine at cranking speed until oil
pressure is observed.
Operate engine for 10 minutes at low idle.
Operate engine for 15 minutes at half-load and
3/4 rated speed.
Operate engine for 30 minutes at rated load and