Bleeding
Fuel
System
Bleed airfrom fuel system asfollows: Disconnectfuel
return
line,
Figure
1.
Operate hand priming lever on
fuel transfer pump until fuel flowing from fuel return
line is free of air bubbles. Then reconnect the fuel
return line.
Preheating for
60
seconds
is
recommended on all
DJ-Series Diesels at 55°F
(13°C)
or lower, and
30
seconds
for
temperatures above
55°F
(13OC).
Refer
to
Onan
Diesel
Starting
Guide,
for additional starting
guidelines.
Inhalation of exhaust gases might
result in serious personal injury or
death. Be sure deadly exhaust gas
is
piped outside
and away from windows, doors, or other inlets to
building.
Use of ether as a sfarfing aid might
i
cause an explosion resulting in
severe personal injury and engine damage.
Do
not
use ether as a starting aid; heat or compression or
heat
from
the glowplugs may cause asudden ignition
of the ether vapor.
1.
Engage PREHEAT switch for the time period
4
PRE-HEATING AND STARTING
b
p
WnRNlNGI
recommended below:
30
seconds if above
55"
F
(13" C)
-
60
seconds if below
55°F
(13°C).
2.
Engage START switch while continuing preheat.
3.
If engine fails to start in
15-20
seconds, repeat
Hold
until engine comes up to speed.
To
START
4.
5.
1,
n
PREHEAT COLD ENGINE PUSH PREHEAT SWITCH AND HOLD-
*
30
SECONDS IF ABOVE
55OF
(13°C);
60
SECONDS
IF
BELOW
55OF
(13'C).
NEVER PREHEAT MORE THAN
60
SECONDS.
steps
1
&
2.
Absence
of
blue
exhaust
smoke
dur-
ing cranking indicates
no
fuel being delivered.
Determine cause.
In
extreme cold
it
may
be necessary to maintain
preheating up to
2
minutes after the engine starts
to obtain firing
or
to smooth
out
all cylinders,
especially at no load
or
light loads.
Do
not
exceed the one minute
preheat periods to prevent heat-
er burn
out
and conserve the battery. Longer
preheating time prior
to
cranking the engine can
ruin the manifold heaterandglowplugs because
fhere
is
no
incoming air flow
io
cool them. Addi-
tional operation
of
the preheaters for a few
seconds during cranking in cold weather may
help
to
preheat the incoming combustion air and
prevent misfires as the engine
starts
running.
Verify that oil pressure gauge reads at least
20
psi
after engine reaches speed (pressure relief valve
is
not adjustable).
Do
not
apply overvoltage
to
the
starting circuit at any
time.
Overvoltage will destroy the glow plugs and air
heater.
If
jt becomes necessary
to
use an addi-
tional source of power
to
start the set, use a
72
volt baffery connected in parallel.
STOPPING
Push fuel solenoid switch40
Stop
position.
L.
Release switch when set stops.
If
stop circuit fails,
close fuel valve.
ONAN DIESEL STARTING GUIDE
-
INDUSTRIAL ENGINES
BEFORE
STARTING: CHECK FUEL SUPPLY.
BE SURE SHUTOFF VALVES ARE OPEN.
I
1
PRIME FUELSYSTEMIFFUEL FILTERS WEREDRAlNED
OR
CHANGED.
SYSTEM WAS JUST INSTALLED. FUEL TANK RAN
DRY.
1
1
i
1
-AIR HEATER
1
ELEMENT IN MANIFOL
TO PRIME FUEL
SYSTEM
MOVEPRIMING LEVERUP JECTION NOZZLE
AND
DOWN UNTIL FUEL
FLOWS STEADILY
FROM
RETURN
LINE (DISCON- LOW PLUG
NECTED).
INJECTION PUMP
FUEL TRANSFER
PUMP
PRIMING
LEVER
-
FUEL FILTERS
FUEL RETURN LINE
-
I
~ ~~~
IF ENGINE FIRES BUT DOES NOTSTART. REPEAT ABOVE PROCEDURES, INCLUDING
PREHEAT. LIMIT CRANKING TO
15
TO
20
SECONDS TO CONSERVE BATTERY. IF
r
ENGINE STILL DOESNOTSTART. SEEYF ENGINE FAILS
TO
START" INFORMATION.
9
Redistribution or publication of this document,
by any means, is strictly prohibited.
To Next Page
Loading...
Need help?
General
