Section 6: ELECTRICAL
PA1553
38
This oil-cooled alternator is self rectifying. All
current carrying members, windings, built-in
diodes, and field coils are stationary. The only
moving component is the rotor. The alternator is
a totally-enclosed unit, cooled and lubricated by
engine oil. The oil inlet is on the diode end
cover. The oil drains back into the engine
crankcase through the drive end frame and drive
adapter housing.
This alternator should never be operated with
the oil supply line disconnected. A continuous
flow of engine oil through the alternator
lubricates the bearings and cools the assembly.
Four terminals are used on this alternator: the
DC output terminal, two field terminals, and a 12
volt relay terminal. The alternator output voltage
is regulated by a separate 24 volt regulator that
controls the alternator field current (Fig. 22 and
23).
CAUTION
The electrical system is NEGATIVE
GROUNDED. Connecting the batteries or a
battery charger with the positive terminal
grounded will endanger the alternator diodes
and vehicle wiring by a high current flow.
Burned wiring harnesses and burned “open”
diodes will result. Always ensure that the
alternator and battery polarities are matched
prior to installation. THE ALTENATOR WILL
NOT REVERSE TO ACCEPT INVERSE
POLARITY. Also, do not ground or short
across any of the alternator or regulator
terminals.
CAUTION
Since there are no brushes, slip rings, or
rubbing seals, the alternator requires no
periodic maintenance other than the following:
1. Check alternator-to-engine mounting bolts
for looseness and tighten to the proper
torque.
2. Check all electrical connections for
tightness and corrosion. Clean and tighten
connections as necessary. Be sure wiring
insulation is in good condition and that all
wiring is securely clipped to prevent
chafing of the insulation.
3. With the engine running, listen for noise
and check the alternator for vibration. If
the alternator is noisy or vibrates
excessively, it should be removed for
inspection and repair.
4. Ensure that battery terminals are clean
and tight
NOTE
The relay coils connected to the alternator
“relay terminal” SHOULD NEVER BE
PROVIDED WITH A SUPPRESSOR DIODE
as the output current at this terminal is not
rectified, thus rendering relay inoperative.
FIGURE 24: CONNECTIONS FOR CHECKING
ALTERNATOR
OUTPUT
06068
BAD PRACTICE. NEVER JUMP F1 FIELD
TERMINAL TO DC(+) TERMINAL
Содержание LE MIRAGE XLII
Страница 1: ...COACH MANUFACTURER MAINTENANCE MANUAL LE MIRAGE XLII BUS SHELLS PA1553 ...
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Страница 13: ...Section 00 GENERAL INFORMATION PA1553 11 FIGURE 14 CONVERSION CHART 00006 ...
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Страница 345: ...FAULT CODE MANUAL Created on 00 04 25 15 30 1 FAULT CODE MANUAL B7L B7TL B12 ...
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Страница 419: ...SPICER SPECIALITY AXLE DIVISION place product photo here SERVICE MANUAL GENERAL INFORMATION NDS Axle range ...
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Страница 438: ...Page No 12 NDS2 issue A Spicer SpecialityAxle Division Technical Publications Spicer Speciality Axle Division ...
Страница 464: ...Page No 18 Manual No NDS8 Spicer Speciality Axle Division Technical Publications Spicer Speciality Axle Division TP1193 ...
Страница 492: ...Section 12 BRAKE AND AIR SYSTEM PA1553 20 FIGURE 38 AIR OPERATED BRAKING SYSTEM W0 WE ...
Страница 493: ...Section 12 BRAKE AND AIR SYSTEM PA1553 21 FIGURE 39 AIR OPERATED BRAKING SYSTEM W5 ...
Страница 500: ...Section 12 BRAKE AND AIR SYSTEM PA1553 28 FIGURE 46 ABS 4S 4M CONFIGURATION ...
Страница 528: ...16 BW2158 Honeywell Commercial Vehicle Systems Company 4 2001 Printed in USA ...
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Страница 844: ...Section 16 SUSPENSION PA1553 22 FIGURE 26 SWAY BAR FRONT SUSPENSION 16138D FIGURE 27 SWAY BAR REAR SUSPENSION 16014 ...
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Страница 1004: ...PROCEDURE NO PR00044 REVISION 00 Page 2 of 2 Slide out ...
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Страница 1162: ...Section 22 HEATING AND AIR CONDITIONING PA1553 16 FIGURE 16 REFRIGERANT CIRCUIT CENTRAL SYSTEM 22247 ...
Страница 1165: ...Section 22 HEATING AND AIR CONDITIONING PA1553 19 FIGURE 17 DOUBLE SWEEP EVACUATION SET UP ...
Страница 1186: ...Section 22 HEATING AND AIR CONDITIONING PA1553 40 FIGURE 42 REFRIGERANT CIRCUIT SMALL SYSTEM 22336 ...
Страница 1191: ...Section 22 HEATING AND AIR CONDITIONING PA1553 45 FIGURE 50 CENTRAL HEATING SYSTEM COMPONENTS 22338 ...
Страница 1201: ...Section 22 HEATING AND AIR CONDITIONING PA1553 55 FIGURE 64 HEATER LINE SHUTOFF VALVES WE W0 ...
Страница 1202: ...Section 22 HEATING AND AIR CONDITIONING PA1553 56 FIGURE 65 SMALL HEATING SYSTEM COMPONENTS 22337 ...
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Страница 1209: ...Compressor 62 11052 Rev A WORKSHOP MANUAL for MODEL 05G TWIN PORT COMPRESSOR R ...
Страница 1210: ...WORKSHOP MANUAL COMPRESSOR MODEL 05G TWIN PORT ...
Страница 1233: ...Compressor 62 11053 Rev B SERVICE PARTS LIST for MODEL 05G TWIN PORT COMPRESSOR 1 2 3 4 5 6 R ...
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Страница 1287: ...Section 24 LUBRICATION PA1553 5 FIGURE 2 LUBRICATION AND SERVICING POINTS ON INDEPENDENT FRONT SUSPENSION VEHICLES 24036 ...
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Страница 1305: ...Section 26 XLII SLIDE OUT PA1553 11 ...
Страница 1306: ...Section 26 XLII SLIDE OUT PA1553 12 FIGURE 16 KEYLESS BUSHING INSTALLATION INSTRUCTION ...