!
SERVICE AND
MAINTENANCE
OP E RATO
R MAINTENANCE SCHEDULE
(Performed
by
0wner)
MAINTENANCE
IT
EMS
OPERATIONAL
HOURS
50
t00
200 500
In s
pect
Plant cenerally
Check
Fuel Supply
Check Oil Level
Clean
Governor
Linkaae
Service Air
Cleaner
Chanse
C.ankcas€
Oil
Check Battery
Clean or Replace Fuel Frlter
Check
Spark PluSs
Reolac€
Oil
Filtef
Replace Arr
Cleaner
Elemenr
r
Change every
50
hours w+ren operating
at
high
ambient
temperatures
(
100"F
and above).
C
Service
more often under extreme dust conditions.
PERIODIC MAINTENANCE
SCHEDULE
Regularly
scheduled maintenance
is
the
key
to lower
operating
costs and longer
service life
for the unit.
The above
schedule can
be
used
as a
guide.
However,
actual operating
conditions
undet
which a unit
is run
should be the
determining
factor in
establishing
a
maintenance
schedule.
When opetating
in
very dusty
or dirty
conditions,
some of
the service
periods
may
have to be reduced.
Check the condition of
the ciank-
case
oi1,
the filters, etc.
frequently until
the
proPet
service
time
petiods can be
established.
When any abnormalities
occur in
operation
-
uflusual
noises
from
engine or
accessories,
loss of
powet,
overheating,
etc.
-
contact
your
Onan
dealer.
CRANKCASE
OIL
The oil
capacity is
four
U.S.
quarts
(4-112 with a
filter
change).
Fill to the
"FULL"
mark on
the
oil
level
indicator.
Use
a
good
quality
heavy duty oil with the
API designation
MS,
MS/DG,
SE or
SE/CC.
Oil
shouid
be labeled
as
having
passed
the MS
Sequence Tests
(also known
as the
ASTM G-IV Sequence Tests)
and the
MIL-L-2104B
Tests.
When adding oil between
changes,
always use
the
same
brand
that is in the ctadkcase,
Various
brands
of oil
may not
be compatible when mixed
togethet.
Oil
consumption may
be higher
with
a
multi-grade
oil
than
with a single
grade oil if both oils
have comParable
viscosities
at
210oF. Therefore,
single
gra
de oils
are
generally mote
desirable, urtless
anticipating
a wide
CRITICAL
MAINTENANCE
sCH EDULE
(Performed
by
0non Deoler)
t
-
Tigt
t"n head bolrs and
adjust valve clearance afler
first
50hours
on
a
new or overhauled enSine.
range of temperatures.
Use
the
expected conditions.
TEMPERATURE
proper grade
oil
for
the
GRADE
SAE
50
SAE
30
10w-40,5w-30
sAE
5W-30
evefy 100
hours
under
operating
in
extremely
oil
every
50
hours
or
Above
90"F
30
"F
to
90
"F
0"F
to
300F
sAE
Below
0"F
Check oil
level daily. Change
oil
normal
operating conditions.
When
dusty
or dirty conditions,
change
sooner (see
Figure 14
).
MAINTENANCE
ITEMS
OPERATIONAL
HOU RS
t00
500 t000
Check
Br€aker Points
Clean Commutator
and
Collector
R
inss
Check Brushes
Remove
Deposits
From
Combustion
Chamber
Check Valve
Clearance
T
Clean Generator
lnspect Valves,
Grind
lf Necessary
CAP A}ID OIL
L€VEL I1{OICATOR
|(EEP
OIL
otL
LEVEL
AT
THIS
LEVEL-----
XEYCR OPERATE
EI{GIXE wlTH OIL
IELOW
THIS LEYEL---
ALWAYS REPLACE
CAP TIGHTLY,
OR
OIL
LE KAGE
].IAY
occu R.
22
FIGURE
I4.
OIL LEVEL INDICATOR
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