1A-26
1A OPERATION G50/G70/G85
1.29 Engine Power Correction Factors
Performance data on John Deere engines are measured
at the following standard conditions:
• 29.31 inches of mercury dry air pressure
• 600 feet altitude
• 0 % relative humidity
• 77° F air intake temperature
• 104°F fuel inlet temperature
Refer to the table to estimate the engine power decrease
in percent, as environmental factors vary from the stan-
dard conditions.
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
Engine Power Deration (%)
7 8 9 101112 1314 15 161718
Altitude X 1000 Feet
LEDOM
LEUF
PMET
ESIR
F°8.1fo
PMETRIA
ESIR
F°01fo
EDUTITLA
ESIR
tf0001fo
EVITALER
YTIDIMUH
ESIR
%01fo
05G71.005.100.301.0
07G
58G
91.005.0
trahcees
woleb
70.0