TRILECTRON 90T400SLN Operator

Operator

Property of American Airlines

iE90T400sLN

lIIGROUND

OPERATION

POWER

CHAPTER

1

SECTION

2

UNIT

1. CONTROLS
Prior to operating

controls, indicators and
control location and

2. OPERATING PROCEDURES
A. Pre-Operationallnspection:

A PRIOR.TO.USE INSPECTION
TO ENSURE SAFE

PROCEDURES

THE
MENT.

(1)
(2)
(3)
(4)
(5)
(6)

(7)

AND INDICATORS

the

GPU,

functional description.

AND

Enclosure:

Towbar: Excessive movement.

Brakes: Check brakes for

Tires: Inspect tread wear, and check

Engine hoses
Radiator Coolant: Open forward canopy.

container.

Section 2-2, Servicing).

level: Open left front

Oil

the dip stick,

RELIABLE

LISTED BELOW MAY

Inspect

Coolant

personnel

procedures

MUST BE

for

and clamps:

should be

(Refer

to section 2-2,

become

must

described

in this section.

CAUTION

PERFORMED BEFORE

OPERATION

RESULT IN

obvious

access door.

defects, i.e., security

proper

Inspect for leaks

near the

OF THE

operation.

tire inflation

Servicing).

thoroughly

GPU. FAILURE TO

SEVERE DAMAGE

and security.

Observe level of coolant in overflow

full

line.

Service as required

Check that oil

familiar

Refer

EACH

of common

psig).

(60

level is at the full mark

with the operating

to figure 1 for illustrated

OPER,ATION

PERFORM

TO THE EQUIP-

hardware.

(Refer

to

on

January

Original

15, 1999

(8)

Fuel

level: Set IGNITION

Service

(9)

Engine Assembly:
leakage. lnspect valve
leakage.

Property of American Airlines

(10)

Fan Belt: Visually inspect

(11)

Air Filter
front
25 or higher
load.

(12)

Ether Start

operational readiness.

with fuel as necessary.

Visually

(Minder):

access door, under

is

(Optional):

Check

noted

switch to

inspect fuel lines and

cover, oil

for wear and cracking.
Filter Minder@ Indicator located to the left

the air filter assembly.

(engine

Check

pan,

running). Recheck when unit is running under

ether start supply cylinder

position,

ON

and cylinder

observe reading on fuel

fittings

Check

Replace

for

block for

belt for

air filter if a reading

evidence

evidence of oil

proper

installation for

of fuel

tension.

of the right

gauge.

of

1-2

Page 1

iE90T400sLN

IJIGROUND

POWER UNIT

s-t

///1 \\ ///r \\

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i

1-2
Page 2

ir.,

Fi

Hi

Hi iHil

Property of American Airlines

Hlgiiriiiii

Figure 1. Engine/Generator

ilis

ir

r;

Control

lli'lilll,l'lil,

i:

fl

ti

i

Panel

(Typical)

I il'

il

ll

t

ilii

f,:i

Single AC

-

Unit Shown

January 15,

Original

1999

it90T400SLN

lIIGROUND

POWER

UNIT

Figure

1. Control

Item

,|

CONTROL
2 AC VOLTMETER:
3

FAULT INDICATORS

fault removes

4

AMMETER: Indicates

5 FUEL
6 OIL PRESSURE
7

FAULT INDICATORS - ENGINE
shutdown, i.e.,
(225"F).

8 IGNITION
I WATER

10 BATTERY VOLTMETER:

units

12V

11 HOURMETER:

START

12
13 FAULT

When

14 IGNITION SWTCH

PANEL

15
16 RUN/IDLE SWTCH: Two

for

oenerator ooeration.
17 AMMETER SWTCH
18 FREQUENCY METER: Shows

AC

19

LOAD
Used
GPU
AC

LOAD
4, Sect. 1-1)

20 AC LOAD CABLE OFF

AC

LOAD
put. (See

VOLTMETER S\MTCH: Selects either

21

voltmeter.

PANEL

LEVEL GAUGE: Indicates

ON INDICATOR

TEMPERATURE GAUGE:

and 20V on 24V units.

S\MTCH: Starts engine. Pushbutton,

LAMP

pressed

LIGHTS SWTCH:

CABLE ON

in conjunction with INTERLOCI(BY-PASS switch. \Mren

provides

CABLE 2 ON: Supplies AC

CABLE 2 OFF(Push-button)

figure

ASSEMBLY:

Shows

voltage fom the

GAUGE: lndicates engine

Low

Indicates totalengine run

TEST

while the iqnition switch is in the ON

momentary 28Y DC to aircraft connector

Sect. 1-l)

2,

generator

GENERATOR:

­generator

pressure

oil

(Yellow):

lndicates battery voltage

(Pushbutton): \Mren

(ON/OFD:

Tums

position

(Rotary):

(Push-button):

(Pushbutton):

Panel

Gomponent

Description

Mounted

aircraft. Overvolts

(L-N)

amount of fuel

(Red):

(10

position

On

panel

switch. Controls engine

Measures cunent

qenerator

at front

(L-N)

output

Fault

output

lndicates

psi

min.);

Lights

Indicates engine

time.

pressed

supplies startino

liohts

output frequencv

Supplies

powerto

Removes output

Removes output
Line to Line or Line to Neutralvoltage

of electronic

voltage

indicators willilluminate

& Overload

cunent.

remaining

pressure.

oil

to operatorthe

Engine Overspeed

when the

condition.

momentary contact

while

On for nioht time ooeration.

of

powerto

AC

output Cable

tdentification

box assembly

(0-150

ENGINE CONTROL

watertemperature

unit is in

position.

phases

output

pins

powerfrom

power

volts).

red

stops

allvoltaoe

in fuel

tank.

protective

(2550

Do not

and controllino voltaqes

speed.

'1.2

(360-440H2).

2. Only on units

start unit if voltage

switch.
the RUN mode, it lights allfaults lamps.

it will

lioht onlv the enqine fault lamps.

IDLE

or 3.

Cable 1

pushed

ON is

E & F.

cablel

from cable

when a fault

oeneration.

system

RPM);

(225"F

position

(single

Engine

PO\ /ER switch is turned on.

(single

with INTERLOCK

with dualAC output

and dualAC

Only on units with dual AC

2.
measurements

has occuned.

caused

that

Over

max.).

is less than: 10V

enoine circuits.

to

for starting.

and

dual AC

output units).

to show on the

the engine

Temperature

RUN

output units).

(See

Each

on

position

setting,

figure

out-

2. OPERATINGPROCEDURES(Continued)

Property of American Airlines

B. Engine Start Procedures:

which

in

they

presented

are

The following steps

(See

Figure 1):

WARNING

DO NOT

ARCING

CONNECT LIVE POWER

MAY CAUSE

SERIOUS

CABLE TO AIRCRAFT.

INJURY, DEATH AND

EQUIPMENT.

January

15, 1999

Original

must be

SEVERE

DAMAGE

OR

performed

in the

ELECTRICAL

THE

TO

sequence

1-2

Page

3

ffigOTAOOSLN

IIIGROUND

POWER

UNlr

Figure

NOTE:

2A.

Gauge
using

the

Figure

2. Control

Panel, Shown

in

the

Open

Position.

-^^

rtd)

\

w$-c

Control

Control Panel, Top

Property of American Airlines

lights

automatically

Panel Light

switch.

Left.

come ON

Figure

when

lgnition

28.

switch

Panel,

is ON.

Turn Panel

Top

Center.

Lights

on

1-2
Page

January

4

15, 1999

Original

iH

.EI

e0T400sLN

GROUND

ffi:;*

w

W

Figure 2C. Control

PROLONGED
PERMANENT HEARING LOSS.

WHEN WORKING

BATTERY MUST BE

STARTING AND

EXPOSURE

IN CLOSE

(1)
(2)

ENGINE IGNITION

Set
canopy

Set IDLE/RUN switch

CONTROL.

mounted

FULLY

TO HAZARDOUS

PROXIMITY TO THIS

yellow

CHARGED

POWER

@"

'rtt'

Panel,

WARNING

NOISE

EAR PROTECTION

SWTCH
flashing

(16)

to IDLE.

CAUTION

TO

(14)

beacon will be

SUPPLY VOLTAGE

Right

LEVELS

DEVICES

EQUIPMENT.
to

UNIT

#,

W

W.

Side.

MAY

ON. IGNITION

illuminated.

RESULT IN

MUST

BE WORN

ON

FOR ENGINE

indicator

(8),

and

(3)

Observe the VOLTMETER
battery if a low voltage is indicated.

DO NOT HOLD

THIS DEPLETES THE

(4)

START

Press
come up to idle speed.

START

Property of American Airlines

IF LOW OR NO
OPERATION,
swrTcH
SEVERE

January

Original

15, 1999

IMMEDIATELY

(13)

TO

ENGINE DAMAGE.

(5)

OIL
30

PRESSURE IS INDICATED

OIL

OFF.

PRESSURE

psi

minimum at run speed.

gauge

CAUTION

BUTTON

BATTERY AND COULD DAMAGE

FATLURE TO COMPLY CAN

DEPRESSED FOR LONG

pushbutton

STOP

gauge

(12)

CAUTION

ENGINE BY

(6)

should read

(10)

on the

THE

for 1 - 2 seconds

AFTER 10.15

SETTING ENGINE IGNITION

RESULT rN

psi

10

Engine

PERIODS

minimum

Control Panel, charge

OF

STARTER.

to start engine.

SECONDS OF

pressure

TIME, AS

Engine

at idle

will

speed,

1-2

Page 5

=.HgOT4OOSLN

NOT

DO

COMPLY

TO

lJf

(6)

WATER
warmed.

(7)

VOLTMETER
VDC

ALLOW THE

COULD

(8)

Let

(24

RESULT IN ENGINE

the engine idle for

cRouND PowER

TEMPERATURE

gauge

VDC

units)

ENGINE

TO IDLE FOR LONG PERIODS

gauge

(5):

Voltage should

.

CAUTION

minutes to warm engine.

2-3

(9)

indicates 170

DAMAGE.

uNtr

to 195'F

be at least

OF TIME. FAILURE

when engine

12 VDC

(12V

has

units) or

20

1-2
Page

6

Property of American Airlines

January

15, 1999

Original