J.P. Instruments EDM 930 Primary Pilots Guide - Manual (Page 13)

For Your Safe Flight Page 8
Take-Off,
Climb, and
Full
Throttle
Operations
Suggested setup:

Standard view

Automatic mode
Verify:

EGTs and CHTs consistent with past climbs. EGTs
should be in the 1100 to 1300°F range (100° to 300°F
cooler than cruise) due to fuel cooling.
Be alert for:

high EGT in one cylinder, 300°F above the others may
indicate plugged injector or leaking manifold gasket on
a carbureted engine. At high density altitude an overly
rich mixture can significantly reduce engine power.

If all EGT columns go off scale to the top of the
column, be sure you are not in Normalize view, as
indicated by the symbol NRM above the Scanner®
section.
Cruise
After the engine is warmed up, use LeanFind to lean the
mixture.
Suggested setup:

Normalize view

Automatic mode
Be alert for:

uneven EGTs (injected engines). Make fine
adjustments to throttle, then RPM, then mixture to
level the display columns.

abnormal patterns of EGTs and CHT. (see Engine
Diagnosis Chart on page 10).
Descent
Suggested setup:

Standard view

Manual mode
Be alert for:

CLD: shock cooling alarm is set to -60°F. Average
cool rates of -40°F/minute to -50°F/minute are normal,
depending on the engine size.