Cold Start Manifold Heater
WARNING
Do not use starting fluid on an engine equipped
with a manifold heater. Using starting fluid could
cause an explosion, possibly resulting in severe
personal injury and engine damage.
Turn the ignition switch to the ON position. If the tem-
perature is below 32°F (0°C), the wait-to-start indicator
will come on while the manifold heater warms up. After
the indicator light goes out, start the engine. Run the
engine slightly above idle until oil pressure shows on
the gauge. If oil pressure doesn’t show on the gauge
within 30 seconds of starting, turn the key to the OFF
position and wait 1 minute; then repeat the starting pro-
cedure.
Cold Weather Operation
Cummins Engines
Satisfactory performance of a diesel engine operating in
low ambient temperatures requires modification of the
engine, surrounding equipment, operating practices,
and maintenance procedures. The lower the tempera-
tures the greater the amount of modification required,
and yet, with the modifications applied, the engines
must still be capable of operation in warmer climates
without extensive changes.
The following information is provided to engine owners,
operators, and maintenance personnel on how the
modifications can be applied to get satisfactory perfor-
mance from their diesel engines.
There are three basic objectives:
1. Reasonable starting characteristics followed by
practical and dependable warm-up of the engine
and equipment.
2. A unit or installation which is as independent as
possible from external influences.
3. Modifications which maintain satisfactory operating
temperatures with a minimum increase in mainte-
nance of the equipment and accessories.
If satisfactory engine temperature is not maintained,
higher maintenance cost will result, due to increased
engine wear.
Special provisions to overcome low temperatures are
definitely necessary, whereas a change to a warmer
climate normally requires only a minimum of revision.
Most of the accessories should be designed in such a
way that they can be disconnected so there is little ef-
fect on the engine when they are not in use.
Engines
4.3
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