2---2
12. Connect power cable to refrigeration unit. Start
genset as detailed in paragraph 2.3 and then turn
refrigeration unit on to check operation.
(Refer to paragraph b.)
13. Grease Fuel Solenoid plunger.
(Use P/N 07---00245---00.)
b. After Starting Generator Set
1. Refer to paragraph 2.3 for starting and stopping
instructions.
2. Check voltmeter. Should be 460 volts a---c (
¦
5% no load). Volt meter indicating needle should be
pointing to high side of green band (1820 to 1840 rpm, no
load) (1710 rpm, with load).
3. Check total time meter operation.
(Run engine 10 minutes)
4. Listen for abnormal bearing noise.
(12 vdc alternator and main alternator)
5. Check fuel lines, lube oil lines and filters for
leaks.
6. Check radiator and hoses for leaks.
7. Check exhaust system for leaks.
8. Check operation of indicator light.
(Refer to paragraph 1.7.2.f.)
2.3 STARTING AND STOPPING
INSTRUCTIONS
a. Starting Instructions
WARNING
Under no circumstances should ether or any
other unauthorized starting aids be used in
conjunction with the glow plugs.
NOTE
When starting the engine, it is necessary to
continue to hold the glow plug switch in the
UP position until the engine develops
sufficient oil pressure to close the oil pressure
safety switch, energizing and completing all
circuits for unit operation.
1. Hold glow plug switch in the UP position for 30
seconds. (See Figure 1---2)
NOTE
Below 0
_
F, hold glow plug switch for two
minutes, release switch for 30 seconds and
again hold glow plug switch for two minutes. If
engine does not start after 10 seconds
cranking, wait for 30 seconds before repeating
starting procedure.
2. With glow plug switch held in the
UP
position,
push the ignition switch to the
START
position.
3. After engine has started, continue to hold the
glow plug switch in the
UP
position until the oil pressure
safety switch closes (when engine develops sufficient oil
pressure). The glow plug switch will automatically be in
the
OFF
position when released.
4. Complete pre---trip inspection.
(Refer to paragraph 2.2.b.)
b. Stopping Instructions
1. Push ignition switch to the
OFF
position.
2.4 CONTROL CIRCUIT OPERATION
WARNING
Beware of moving V---belts and belt driven
components.
CAUTION
The generator set circuit breaker must be in the
ON position in order to supply power to the
refrigeration unit.
When the glow plug switch is held in the pre---heat
position, current flows to the glow plugs. The glow plugs
(starting aids) provide a source of heat to pre---heat the
combustion chamber during start---up. Power also flows
to the run control relay which energizes, and closes the
RCR
contacts. From the relay
RCR
, power flows through
the high water temperature switch to ground.
In order to start engine, hold the glow plug switch in
the up position for the recommended time as detailed in
paragraph 2.3.a. and then hold the ignition (Start---Run---
Off) switch in the
START
position. With ignition switch in
the
START
position, starter solenoid is energized closing
starter motor contactor contacts (SS), which energizes
starter motor. The starter motor turns over the engine
resulting in pumping fuel to the engine cylinders by the
injection pump. This fuel is ignited by heat of compres-
sion; thus starting the engine. Also, run control relay is
energized at the same time to close a set of contacts and
completes a circuit to the fuel solenoid.
When the engine has developed sufficient oil pres-
sure, oil pressure safety switch contacts close to maintain
a circuit to the run control relay. Energizing this relay
closes (RCR) contacts providing a circuit to keep the fuel
run solenoid energized as long as the safety switch
contacts remain closed. The glow plug switch is then
released and the ignition switch is released to the
RUN
position. Releasing glow plug switch de---energizes the
glow plugs.
Total time meter is energized simultaneously with the
fuel solenoid.
With the engine running, the belt---driven alternator
provides 12---volt d---c power to operate the control
system and charge the battery.
