3
unloader piston is unseated a passage is opened between
the cylinder bore and the air inlet cavity in the cylinder head.
Air compression ceases. See figures 6 & 7.
As the piston moves from bottom dead center (BDC) to top
dead center (TDC) air in the cylinder bore flows past the
unseated unloader piston, into the cylinder head inlet cav-
ity and out the inlet port. On the piston down stroke (TDC
to BDC) air flows in the reverse direction, from the inlet
cavity past the unseated unloader piston and into the cylin-
der bore.
LUBRICATION
The vehicle's engine provides a continuous supply of oil to
the compressor. Oil is routed from the engine to the com-
pressor oil inlet. An oil passage in the crankshaft conducts
pressurized oil to precision sleeve main bearings and to
the connecting rod bearings. Spray lubrication of the cylin-
der bores, connecting rod wrist pin bushings, and ball type
main bearings is obtained as oil is forced out around the
crankshaft journals by engine oil pressure. Oil then falls to
the bottom of the compressor crankcase and is returned to
the engine through drain holes in the compressor mount-
ing flange.
COOLING
Cooling fins are part of the crankcase/cylinder block cast-
ing. Coolant flowing from the engine cooling system through
connecting lines enters the head and passes through inter-
nal passages in the cylinder head and valve plate assembly
and is returned to the engine. Proper cooling is important in
maintaining discharge air temperatures below the maximum
recommended 400 degrees Fahrenheit. Figure 8 illustrates
the various approved coolant flow connections. See the tabu-
lated technical data in the back of this manual for specific
requirements.
PREVENTATIVE MAINTENANCE
Important Note:
Review the warranty policy before perform-
ing any intrusive maintenance procedures. An extended
warranty may be voided if intrusive maintenance is performed
during this period.
EVERY 6 MONTHS, 1800 OPERATING HOURS
OR AFTER EACH 50,000 MILES WHICHEVER OC-
CURS FIRST PERFORM THE FOLLOWING
INSPECTIONS AND TESTS.
FIGURE 7 - CYLINDER HEAD AND VALVE PLATE ASSY.
Cylinder Block Side of Valve Plate Assembly
Cylinder Head Side of Valve Plate Assembly
Air Inlet Slots
(2)
Valve Plate Assembly Side of Cylinder Head
Coolant
Transfer Slots
Air Inlet
Slots (2)
Discharge
Ports (4)
Unloader
Piston Bore
Inlet Reed
Valve/Gasket
Without Inlet Valve
Inlet Reed Valve in Place
Alignment
Pin Holes
Discharge
Ports (4)
Unloader Piston
Seating Surface
Discharge
Valves (2)
Coolant
Transfer Slots
Air Inlet
Cavity
Discharge
Cavity
Unloader Piston
Bore
FIGURE 6 - OPERATIONAL-UNLOADED
AIR INLET
PORT
AIR
DISCHARGE
PORT
DISCHARGE
VALVE
CLOSED
VALVE
PLATE
PISTON MOVES
UP & DOWN
INLET
VALVE
CLOSED
UNLOADER
PISTON UP
&
UNSEATED
AIR FROM
GOVERNOR
UNLOADER
PORT
Содержание LE MIRAGE XLII BUS SHELLS
Страница 1: ...COACH MANUFACTURER MAINTENANCE MANUAL LE MIRAGE XLII BUS SHELLS PA1564 1ST EDITION...
Страница 12: ...Section 00 GENERAL INFORMATION 10 PA1564 FIGURE 13 METRIC US STANDARD CONVERSION TABLE 00005...
Страница 13: ...Section 00 GENERAL INFORMATION PA1564 11 FIGURE 14 CONVERSION CHART 00006...
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Страница 63: ...SECTION 01 ENGINE PA1564 33 FIGURE 13 POWER PLANT CRADLE INSTALLATION 01140...
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Страница 303: ...SPICER SPECIALITY AXLE DIVISION place product photo here SERVICE MANUAL GENERAL INFORMATION NDS Axle range BACK RETOUR...
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Страница 348: ...Page No 18 Manual No NDS8 Spicer Speciality Axle Division Technical Publications Spicer Speciality Axle Division TP1193...
Страница 379: ...Section 12 BRAKE AND AIR SYSTEM PA1564 21 FIGURE 38 AIR OPERATED BRAKING SYSTEM WE...
Страница 380: ...Section 12 BRAKE AND AIR SYSTEM PA1564 22 FIGURE 39 AIR OPERATED BRAKING SYSTEM W5...
Страница 387: ...Section 12 BRAKE AND AIR SYSTEM PA1564 29 FIGURE 46 ABS 6S 5M CONFIGURATION...
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Страница 782: ...Section 16 SUSPENSION PA1564 22 FIGURE 26 SWAY BAR FRONT SUSPENSION 16138D FIGURE 27 SWAY BAR REAR SUSPENSION 16014...
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Страница 1083: ...Section 22 HEATING AND AIR CONDITIONING PA1564 15 FIGURE 16 REFRIGERANT CIRCUIT CENTRAL SYSTEM 22247...
Страница 1086: ...Section 22 HEATING AND AIR CONDITIONING PA1564 18 FIGURE 17 DOUBLE SWEEP EVACUATION SET UP...
Страница 1106: ...Section 22 HEATING AND AIR CONDITIONING PA1564 38 FIGURE 39 REFRIGERANT CIRCUIT SMALL SYSTEM 22350...
Страница 1108: ...Section 22 HEATING AND AIR CONDITIONING PA1564 40 FIGURE 42 CENTRAL HEATING SYSTEM COMPONENTS 22338...
Страница 1118: ...Section 22 HEATING AND AIR CONDITIONING PA1564 50 FIGURE 54 HEATER LINE SHUTOFF VALVES WE...
Страница 1119: ...Section 22 HEATING AND AIR CONDITIONING PA1564 51 FIGURE 55 SMALL HEATING SYSTEM COMPONENTS 22337...
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Страница 1125: ...Compressor 62 11052 Rev A WORKSHOP MANUAL for MODEL 05G TWIN PORT COMPRESSOR R...
Страница 1126: ...WORKSHOP MANUAL COMPRESSOR MODEL 05G TWIN PORT...
Страница 1149: ...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 1205: ...Section 24 LUBRICATION PA1564 5 FIGURE 1 LUBRICATION AND SERVICING POINTS ON INDEPENDENT FRONT SUSPENSION VEHICLES 24036_1...
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Страница 1223: ...Section 26 XLII SLIDE OUT PA1564 11...
Страница 1224: ...Section 26 XLII SLIDE OUT PA1564 12 FIGURE 16 KEYLESS BUSHING INSTALLATION INSTRUCTION...