Carrier 69UG15 manual Starting and Stopping Instructions, Cold Engine Preheat Times

2.3 STARTING AND STOPPING INSTRUCTIONS

2.3.1 Pre-Start Inspection

a. Check engine lubrication and fuel filters, oil lines, and connections for leaks. If required, tighten connec- tions and/or replace gaskets.

b. Check engine lubricating oil level. (Refer to para- graph 1.10, table entry f.)

c.Check poly V-belt for fraying or cracks and proper ten- sion. (Refer to paragraph 4.4.9).

d.Check radiator hoses for leaks and check radiator coolant level. (Refer to paragraph 1.10, table entry j.)

e.Check radiator coil and generator air intake screen for cleanliness. If required, clean using compressed air, reversing the normal air flow.

f.Check air cleaner for cleanliness and clean if neces- sary. (Refer to paragraph 4.4.13.)

g.Check in--line fuel filter and clean if necessary. (Refer to paragraph 4.4.4.)

h.Drain water from fuel tank sump and filter bowl.

i.Fill fuel tank with diesel fuel. (Refer to paragraph 1.10, table entry g.)

j.Check air intake heater amperage. (Refer to para- graph 1.10, table entry h.)

k.Check battery terminals for cleanliness and secure- ness. If required, clean, then coat with a battery termi- nal sealant.

l.Check, and if required, tighten all electrical connec- tions.

m.Check, and if required, tighten all hardware (brack- ets, etc.).

n.Ensure that the main generator set circuit breaker is off (CB-1 for 460 volt units or CB4 for 230 volt units). Connect power cable to refrigeration unit and pro- ceed to paragraph 2.3.2.

2.3.2 Starting Instructions

WARNING

Beware of moving poly V-belt, belt driven components and hot exhaust components.

WARNING

Under no circumstances should ether or any other unauthorized starting aids be used in conjunction with the air intake heat- er.

NOTE

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, op- erate 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 en- gine workshop manual listed in paragraph 1.2).

a. Standard Units

1.Hold intake heater switch (see Figure 1-6) in the PREHEAT position. Suggested hold times for a cold engine are as follows:

COLD ENGINE PREHEAT TIMES

Ambient Temperature	Time
78 F/ 26 C	5 seconds
32 F to 78 F	10 seconds
(0 C to 26 C)
18 F to 32 F	20 seconds
(--8 C to 26 C)
Below 18 F/-8 C	30 seconds

2.With the intake heater switch held in the PREHEAT position, place the ignition switch in the START posi- tion.

3.After the engine has started, continue to hold the in- take heater switch 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 will automatically return to the OFF position and the heater will remain energized for 3 minutes.

b. Units with Auto Start

1.Place the Ignition switch (IGN) in the RUN position.

2.If the low coolant sensor (LCS) is immersed in cool- ant, the auto restart module will energize the heater for 30 seconds and the safety buzzer will sound. Af- ter the 30 second delay, the unit will attempt to start.

2.3.3 Post-Start Inspection

a.Turn on CB-1 for 460 volt units or CB4 for 230 volt units.

b.Check generator output with a voltmeter. In the no load condition, output should be at 490 (+/- 10%) volts with 1800 engine RPM. Place generator set main circuit breaker in the ON position. Start refrig- eration unit.

c.Run engine 10 minutes (check total time meter op- eration).

d.Listen for abnormal bearing noise (AC generator).

e.Check fuel lines, lube oil lines, and filters for leaks.

f.Check exhaust system for leaks.

2.3.4 Stopping Instructions

Place the ignition switch in the OFF position.

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