Operation
4.1Starting and Stopping Instructions
1.Check engine lubrication and fuel filters, oil lines, and connections for leaks. If required, tighten connections and/or replace gaskets.
2.Check the engine lubricating oil level (see Table 2–4).
3.Check the poly V-belt for fraying or cracks and proper tension (see Section 6.4.10).
4.Check the radiator hoses for leaks and check radiator coolant level (see Table 2–4).
5.Check the radiator coil and generator air intake screen for cleanliness. If required, clean using compressed air, reversing the normal air flow.
6.Check the air cleaner for cleanliness and clean if necessary (see Section 6.4.11).
7.Check the in-line fuel strainer and clean if necessary (see Section 6.4.4).
8.Drain water from the fuel filter bowl.
9.Fill the fuel tank with diesel fuel (see Table 2–4).
10.Check the air intake heater (IH) amperage (see Table 2–4).
11.Check the battery terminals for cleanliness and secureness. If required, clean, then coat with a battery terminal sealant.
12.Check and if required, tighten all electrical connections.
13.Check and if required, tighten all hardware (brackets, etc.).
14.Ensure that the main generator set circuit breaker (CB1) is in the OFF position. Connect the power cable to the refrigeration unit and proceed to Section 4.1.2 for starting instructions.
Before start up, both the generator set circuit breaker (CB1) and the refrigerated unit should be OFF. After start up, the generator set should be run for at least two minutes to allow the power source to stabilize before supplying power to the refrigerated unit. This will eliminate the potential of any cold start transient spikes from reaching the refrigerated unit. Cold start transient spikes can potentially cause nuisance over voltage alarms on refrigerated units that are sensitive to electrical spikes or transients.
Beware of moving poly V-belt, belt driven components and hot exhaust components.
Under no circumstances should ether or any other unauthorized starting aids be used in conjunction with the air intake heater.
Piston rings in engines that have operated less than 100 hours may not be fully seated. This may lead to the possibility of oil seepage from the exhaust pipe. To properly seat the rings, operate the engine under full load for a period of 24 hours. If the condition persists, check valve clearance when the engine is cold. (Refer to engine workshop manual listed in Section 2.4).
Procedure:
1.Make sure that circuit breaker CB-1 is in the OFF position.
2.Hook up the 460 volt cable from the refrigerated unit to the generator set receptacle.
3.Hold the intake heater switch (HS) in the PREHEAT position (see Figure 2.11) in the PREHEAT position. Suggested hold times for a cold engine are listed in the following table:
Ambient Temperature |
Time |
|---|---|
26°C |
5 seconds |
0°C to 26°C |
10 seconds |
-8°C to 26°C |
20 seconds |
Below -8°C |
30 seconds |
4.With the intake heater switch (HS) held in the PREHEAT position, place the ignition switch (IGN) in the START position.
5.After the engine has started, continue to hold the intake heater switch (HS) in the PREHEAT position until the engine develops sufficient oil pressure to close the oil pressure safety switch (approximately 5 seconds). When released, the intake heater switch (HS) will automatically return to the OFF position and the heater will remain energized for 3 minutes.
1.Allow the generator set unit to run for at least 2 minutes.
2.Turn on circuit breaker CB-1.
3.Check generator output with a volt meter. Voltage output at start up with no load at 50Hz operation should be 1500 RPM, 360-460 VAC. Voltage output may vary and fall with ISO specifications based on ambient (see Table 2–3).
4.Start the refrigeration unit.
5.Run the engine for 10 minutes and check total time meter operation.
6.Listen for abnormal bearing noise from the AC generator.
7.Check the fuel lines, lube oil lines, and filters for leaks.
8.Check the exhaust system for leaks.
1.Place circuit breaker CB-1 in the OFF position.
2.Place the ignition switch (IGN) in the OFF position.
With the intake heater switch (HS) held in the ON position, current flows through the ammeter to the intake heater (IH). While the heater is on, the ammeter will show an approximate 42-amp draw.
A second set of contacts also energizes the safety relay (S).
If the high water temperature switch (HWT) opens to break the safety relay ground connection, the safety relay (S) will not energize, and the engine will not start.
To start the engine, the ignition switch (IGN) is held in the START position. With the switch in the START position, current flows to the starter solenoid (SS), through the SS contacts to the starter motor (SM). Current then flows to the intake heater timer (IHT), intake heater relay (HR) and to the heater, while simultaneously powering the electronic governor module (EG), fuel solenoid (FS), and engine speed sensor (ESS).
The starter motor (SM) turns over the engine resulting in pumping of fuel to the engine cylinders by the injection pump. This fuel is ignited by heat of compression; thus starting the engine. When the engine has developed sufficient oil pressure, the low oil pressure (LOP) switch contacts close to maintain power to the safety relay (S).
Once the engine has started, the intake heater (IH) will remain energized for three minutes.
The ignition switch (IGN) will be released. The intake heater switch (HS) will be held for five seconds, then released after the ignition switch (IGN) is released. When the START switch is released, the starter will be disengaged.
With the engine running, the battery charger provides DC power to operate the control system and charge the battery.