2
OPERATION
The compressor is driven by the vehicle engine and func-
tions continuously while the engine is in operation. Actual
compression of air is controlled by the compressor unload-
ing mechanism operating in conjunction with a governor.
of the unloader piston and, along with the unloader piston
spring, holds the unloader piston against its seat on the
valve plate. See figures 5 & 7.
NON-COMPRESSION OF AIR (UNLOADED)
When air pressure in the supply reservoir reaches the cut-
out setting of the governor, the governor delivers system
air to the compressor unloader port. Air entering the un-
loader port acts on the unloader piston causing it to move
away from its seat on the valve plate assembly. When the
FIGURE 2 - BA-921 CRANKCASE COVER
AIR INTAKE (LOADED)
During the piston down stroke, a vacuum is created in the
cylinder bore above the piston. The vacuum causes the
inlet reed valve to flex open. Atmospheric air flows through
the open inlet valve and fills the cylinder bore above the
piston. See figures 4 & 7.
AIR COMPRESSION (LOADED)
When the piston reaches approximately bottom dead cen-
ter (BDC), the inlet reed valve closes. Air above the piston
is trapped by the closed inlet reed valve and is compressed
as the piston begins to move toward top dead center (TDC).
When air in the cylinder bore reaches a pressure greater
than that of the system pressure the discharge reed valves
open and air flows into the discharge line and air brake sys-
tem.
Air, during the compression stroke, flows into the hollow
center of the unloader piston through an opening in the end
of the piston. Compressed air acts on the interior surfaces
FIGURE 3 - BA-921 COMPRESSOR UNLOADER SYSTEM
COMPRESSOR
GOVERNOR
SUPPLY RESERVOIR
RESERVOIR
PORT
GOVERNOR
UNLOADER
PORT
FIGURE 4 - OPERATIONAL-LOADED (INTAKE)
PISTON MOVING DOWN
AIR INLET
PORT
INLET
VALVE
OPEN
AIR
DISCHARGE
PORT
DISCHARGE
VALVE
CLOSED
UNLOADER
PISTON
DOWN &
SEATED
VALVE
PLATE
UNLOADER
PORT
FIGURE 5 - OPERATIONAL-LOADED (COMPRESSION)
PISTON MOVING UP
AIR INLET
PORT
INLET
VALVE
CLOSED
AIR
DISCHARGE
PORT
DISCHARGE
VALVE
OPEN
UNLOADER
PISTON
DOWN &
SEATED
VALVE
PLATE
UNLOADER
PORT
Содержание LE MIRAGE XLII
Страница 1: ...COACH MANUFACTURER MAINTENANCE MANUAL LE MIRAGE XLII BUS SHELLS PA1553 ...
Страница 2: ......
Страница 12: ...Section 00 GENERAL INFORMATION 10 PA1553 FIGURE 13 METRIC US STANDARD CONVERSION TABLE 00005 ...
Страница 13: ...Section 00 GENERAL INFORMATION PA1553 11 FIGURE 14 CONVERSION CHART 00006 ...
Страница 14: ......
Страница 30: ......
Страница 131: ...section01f tif 1700x2164x2tiff ...
Страница 132: ...section01f tif 1700x2164x2tiff 2 ...
Страница 133: ...section01f tif 1700x2164x2 3 ...
Страница 134: ...section01f tif 1700x2164x2 4 ...
Страница 135: ...section01f tif 1700x2164x2 5 ...
Страница 136: ...section01f tif 1700x2164x2 6 ...
Страница 137: ...section01f tif 1700x2164x2 7 ...
Страница 138: ...section01f tif 1700x2164x2 8 ...
Страница 139: ...section01f tif 1700x2164x2 9 ...
Страница 140: ...section01f tif 1700x2164x2tiff 10 ...
Страница 141: ...section01f tif 1700x2164x2tiff 11 ...
Страница 142: ...section01f tif 1700x2164x2tiff 12 ...
Страница 143: ...The ONLY Motor Coach Power Choice ...
Страница 182: ......
Страница 185: ...Section 04 EXHAUST SYSTEM PA1553 3 FIGURE 2 EXHAUST SYSTEM INSTALLATION W5 04013 ...
Страница 206: ......
Страница 207: ......
Страница 208: ......
Страница 209: ......
Страница 210: ......
Страница 211: ......
Страница 212: ......
Страница 213: ......
Страница 214: ......
Страница 278: ......
Страница 328: ......
Страница 345: ...FAULT CODE MANUAL Created on 00 04 25 15 30 1 FAULT CODE MANUAL B7L B7TL B12 ...
Страница 370: ......
Страница 397: ......
Страница 398: ......
Страница 399: ......
Страница 400: ......
Страница 401: ......
Страница 402: ......
Страница 403: ......
Страница 404: ......
Страница 405: ......
Страница 406: ......
Страница 407: ......
Страница 408: ......
Страница 419: ...SPICER SPECIALITY AXLE DIVISION place product photo here SERVICE MANUAL GENERAL INFORMATION NDS Axle range ...
Страница 425: ......
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 ...
Страница 532: ......
Страница 540: ......
Страница 548: ......
Страница 555: ......
Страница 568: ......
Страница 588: ......
Страница 594: ......
Страница 597: ......
Страница 650: ...52 9 Inch Fraction Decimal and Millimeter Equivalents Chart Up to 1 inch 9 1 9 Conversion Tables ...
Страница 665: ......
Страница 666: ......
Страница 667: ......
Страница 668: ......
Страница 669: ......
Страница 670: ......
Страница 671: ......
Страница 672: ......
Страница 673: ......
Страница 674: ......
Страница 675: ......
Страница 676: ......
Страница 677: ......
Страница 678: ......
Страница 679: ......
Страница 680: ......
Страница 681: ......
Страница 682: ......
Страница 683: ......
Страница 684: ......
Страница 685: ......
Страница 686: ......
Страница 687: ......
Страница 688: ......
Страница 689: ......
Страница 690: ......
Страница 691: ......
Страница 692: ......
Страница 693: ......
Страница 694: ......
Страница 695: ......
Страница 696: ......
Страница 697: ......
Страница 698: ......
Страница 699: ......
Страница 700: ......
Страница 701: ......
Страница 702: ......
Страница 703: ......
Страница 704: ......
Страница 705: ......
Страница 706: ......
Страница 707: ......
Страница 708: ......
Страница 709: ......
Страница 710: ......
Страница 711: ......
Страница 712: ......
Страница 713: ......
Страница 714: ......
Страница 715: ......
Страница 716: ......
Страница 717: ......
Страница 718: ......
Страница 719: ......
Страница 720: ......
Страница 721: ......
Страница 722: ......
Страница 723: ......
Страница 724: ......
Страница 725: ......
Страница 726: ......
Страница 727: ......
Страница 728: ......
Страница 729: ......
Страница 730: ......
Страница 731: ......
Страница 732: ......
Страница 733: ......
Страница 734: ......
Страница 735: ......
Страница 736: ......
Страница 737: ......
Страница 738: ......
Страница 739: ......
Страница 740: ......
Страница 741: ......
Страница 742: ......
Страница 743: ......
Страница 744: ......
Страница 745: ......
Страница 746: ......
Страница 747: ......
Страница 748: ......
Страница 749: ......
Страница 750: ......
Страница 751: ......
Страница 752: ......
Страница 753: ......
Страница 754: ......
Страница 755: ......
Страница 756: ......
Страница 757: ......
Страница 758: ......
Страница 759: ......
Страница 760: ......
Страница 761: ......
Страница 762: ......
Страница 763: ......
Страница 764: ......
Страница 765: ......
Страница 766: ......
Страница 767: ......
Страница 768: ......
Страница 769: ......
Страница 770: ......
Страница 771: ......
Страница 772: ......
Страница 773: ......
Страница 774: ......
Страница 775: ......
Страница 776: ......
Страница 777: ......
Страница 778: ......
Страница 779: ......
Страница 780: ......
Страница 781: ......
Страница 782: ......
Страница 783: ......
Страница 784: ......
Страница 785: ......
Страница 786: ......
Страница 787: ......
Страница 788: ......
Страница 789: ......
Страница 790: ......
Страница 791: ......
Страница 792: ......
Страница 793: ......
Страница 794: ......
Страница 795: ......
Страница 796: ......
Страница 797: ......
Страница 798: ......
Страница 799: ......
Страница 800: ......
Страница 801: ......
Страница 802: ......
Страница 803: ......
Страница 804: ......
Страница 805: ......
Страница 806: ......
Страница 807: ......
Страница 808: ......
Страница 809: ......
Страница 810: ......
Страница 811: ......
Страница 812: ......
Страница 813: ......
Страница 814: ......
Страница 815: ......
Страница 816: ......
Страница 817: ......
Страница 818: ......
Страница 819: ......
Страница 820: ......
Страница 821: ......
Страница 822: ......
Страница 844: ...Section 16 SUSPENSION PA1553 22 FIGURE 26 SWAY BAR FRONT SUSPENSION 16138D FIGURE 27 SWAY BAR REAR SUSPENSION 16014 ...
Страница 964: ......
Страница 978: ......
Страница 980: ......
Страница 982: ......
Страница 988: ......
Страница 994: ......
Страница 998: ......
Страница 1002: ......
Страница 1004: ...PROCEDURE NO PR00044 REVISION 00 Page 2 of 2 Slide out ...
Страница 1008: ......
Страница 1010: ......
Страница 1012: ......
Страница 1018: ......
Страница 1022: ......
Страница 1024: ......
Страница 1032: ......
Страница 1054: ......
Страница 1066: ......
Страница 1070: ......
Страница 1074: ......
Страница 1110: ......
Страница 1116: ......
Страница 1122: ......
Страница 1142: ......
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 ...
Страница 1208: ......
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 ...
Страница 1261: ......
Страница 1262: ......
Страница 1263: ...1 ...
Страница 1264: ...2 ...
Страница 1265: ...3 ...
Страница 1266: ...4 ...
Страница 1267: ...5 ...
Страница 1268: ...6 ...
Страница 1269: ...7 ...
Страница 1270: ...8 ...
Страница 1271: ...9 ...
Страница 1272: ......
Страница 1287: ...Section 24 LUBRICATION PA1553 5 FIGURE 2 LUBRICATION AND SERVICING POINTS ON INDEPENDENT FRONT SUSPENSION VEHICLES 24036 ...
Страница 1294: ......
Страница 1305: ...Section 26 XLII SLIDE OUT PA1553 11 ...
Страница 1306: ...Section 26 XLII SLIDE OUT PA1553 12 FIGURE 16 KEYLESS BUSHING INSTALLATION INSTRUCTION ...