Onan 6GO-F - Page 6

PLANT RUNNI NG HOURS
COMPARED TO AUTOMOBILE RUNNING MILES
The engine of your generating plant makes a~ many revolutions in one hour,
as the average automobile engine does when the car travels a distance of
41 miles.
100 running hours time on a generating 'plant engine is equivalent in total
RPM's to approximately 4100 running miles on an automobile.
However, do not conclude that the wear on the generating plant engine and
the wear on the automobile engine would be the SaIne; The generating plant
engine is built much more ruggedly, (having larger main bearings, bigger
oil capacity and.has a heavier crankshaft proportionately per horsepower)
than most automobile engines. Given the proper care and periodic servicing
the generating plant engine will continue to give many mora hours of effi-
Cient service than an automobile engine will after having been run the
equivalent number of running miles.
Compare the running time of your generating plant engine with the number of
miles traveled by an automobile. The oil in an auto is checked every one
or two hundred miles (3 to 5 hrs. running time) andi changed every 1000 to
1500 miles (28 to 42 hrs.) Ylhereas in a generating plant or stationary
power engine, the oil should be checked. every 6 to 8 running hours (250 to
350 miles) and changed every 50 to 100 operating hours (2000 to 4000 miles)
depending on operating conditions.
About every 5,000 to 10,000 miles (120 to 250 hours), services have to be
performed on an auto, such as checking ignition points, replacing spark
plugs, condensers, etc. S~nilarly on your generating plant engine, these
same services have to be performed periodically except the change period is
reckoned in hours. 10,000 miles on an auto is equivalent to about 250 run-
ning hours on your plant engine.
To arrive at an approximate figure of comparatIve generating plant running
hours as against automobile engine running miles, multiply the total number
of running hours by 41 to find the equivalent of running miles on an auto-
mobile.
Your generating plant engine cen "take it" and will give many hours of, effi-
cient performance provided it is serviced regularly.
Below is a chart showing the comparison between a generating plant engine
running hour!! and an automobile running miles.
GENERATING PLANT AUTOHOBILE
RUNNING HOURS
llUNNING·MILES
41 Miles
r Hr. n
DAILY 4 Hrs.
164
II
AVERAGE 6 "
246
II
a "
3
2
8,
287
II
WEEKLY 28
1,148
"
"
AVERAGE 42
1,722
II
"
56
2,296
C
"
"
"
GENERATING PLANT
AUTOMOBILE
RUNNING HOURS
RUNNING HILES
30 Hrs.
1,230 Miles
{'6
5
"
II
"
"
~NTHLY{
120
4,920
"
AVERAGE. '. laO
7,380
II
240
9,840
"
14,965
"
II
II
YEARLY 1,460
59,860
II
AVERAGE 2,190
89,790
"
2,920
"
119,720
II
NOTE; Electric generating plants do not operate economically when used to
power electric refrigerators and will add from 4 to a operating hours per
day in addition to the regular lighting load.