(2) Replace cylinder that has been used, or
One capsule may be discharged
that does not weigh in accordance with marking on
into manifold and another placed in holder, in
readiness for use should the engine begin to stall.
(e) If engine does not start in 15 seconds,
2-25. Cold Weather Starting Aids
let starter motor rest for at least 30 seconds then repeat
a. General. Winterized units with engines model
steps (a) through (d) above.
687C-ES-18, and some units with engine model
(f) When engine starts, decrease throttle
D333TA installed, are equipped with ether injector
control lever to a low idle until engine oil pressure
reaches normal operating pressure, then run engine at
weather starting. Model D333TA engines also have
half throttle for at least five minutes before applying a
glow plugs installed, and in this instance both glow plugs
and ether injection is used for cold weather starting
Be sure spent capsule is left in
pressure discharger while engine is running, and
Battery and engine heaters are installed on winterized
that capsule holder is screwed on finger tight, to
avoid dirt entering engine.
b. Cold Weather Starting Operation.
Caution: Use only enough ether to start the
(1) Operating the ether injector pressure
engine, or to keep it running if it begins to stall. Do
primer discharger. Prepare for starting as directed in
not discharge more than two capsules without
cranking the engine.
(2) Operating the glow plugs (on0 engines
unscrewing it from body in a counterclockwise motion,
and move engine throttle control lever (fig. 2-24) to half
(b) After plugs have heated the required
time, move HEAT-START switch to START and hold for
10 seconds, or until engine starts. As soon as engine
starts, move switch to HEAT position until engine is
running smoothly, then move switch to OFF.
(c) If engine does not start after 10
seconds of cranking, repeat step (a) above.
(d) If engine fails to start on second try,
let starter motor rest for three minutes, then repeat step
(e) After engine has started, move HEAT-
START switch to HEAT position until engine is running
smoothly, and insure that there is enough oil pressure to
turn off low oil pressure warning light. If warning light
does not go out within 15 seconds, stop engine (para
2-11) and determine cause(s). Report deficiencies
Caution: Do not turn HEAT-START switch to
HEAT when engine is warm and running.
(3) Operating glow plugs and pressure
temperature with time required, then move HEAT-
START switch to HEAT.
Figure 2-31. Ether injector pressure primer discharger.
(b) After glow plugs have heated the
allotted time, press trigger of pressure discharger;
release ether into intake manifold, and at same time
replace holder on body by turning clockwise.
move HEAT-START switch to START.
(c) Press on trigger which causes pin to
pierce capsule, allowing gas pressure in capsule to force
HEATSTART switch to HEAT until engine is running
ether into intake manifold.
smoothly, then move switch to OFF.
simultaneously with trigger of pressure primer, and hold
for 15 seconds, or until engine starts.