PERIODS OF LIMITED USE

PERIODS OF LIMITED USE

and result in poor performance and-a loss of power. If

A prolonged period without use is not good for any

piece of machinery. Engines should be started and

long periods of idling are necessary, run the engine under

load every four hours to clear carbon from the combustion

cycled every week. Load the engine every two weeks to

the extent that it would be in normal operation. This is

chambers.

particularly important for standby power. Prolonged idling

If an engine is going to be put in storage see your

or running under a reduced load may cause oil

Caterpillar dealer for storage instructions.

consumption and carboning in the combustion chamber

STARTING

Perform required periodic maintenance before

It takes only a few minutes to correct minor discrepancies

starting the engine. Make a "walk-around" check of the

that can develop into major repair jobs.

installation.

PRE-START CHECKS

Correct any leaks, loose bolts or covers, and

The crankcase oil level must be above the ADD

obstructions. The fan and radiator must be

mark on the dipstick.

clear of restrictions.

Disconnect any battery chargers that are not

Check the coolant level. Maintain coolant level

protected against the starter current drain.

to within 1/2 inch (1 cm) below bottom of fill

pipe.

All guards must be in place. If guards are

inadequate or in need of repair, notify your

supervisor.

If an engine has not been run for several weeks, fuel

may have drained from or air accumulated in the filter

housing. When fuel filters have been changed, some air

space will be left in the housing. In these instances,

prime the fuel system until pressure registers on the

gauge.

OIL LEVEL

STARTING PROCEDURE

ELECTRIC START

Open the fuel supply valve. The fuel return

line must be open to prevent engine damage.

Disengage the clutch or open the circuit

breaker. Do not start an engine under load.

Move the controls to half engine speed

position. Push in on the center knob and

simultaneously pull back the control knob.

OPERATING GOVERNOR CONTROL