Section 12: BRAKE AND AIR SYSTEM
Section 12 Updated Sept. 2015 X3-45 Commuter PA1593 DOB 2400-2489 3
ILLUSTRATIONS
FIGURE 1: I-BEAM FRONT SUSPENSION AIR RESERVOIRS LOCATION 12213 ................................................................ 4
FIGURE 2: REAR VALVE LOCATION (TYPICAL) 12211 ............................................................................................ 5
FIGURE 3: FRONT SERVICE COMPARTMENT 12210 ........................................................................................ 5
FIGURE 4: ACCESSORY AIR FILTER 12088 ........................................................................................................ 6
FIGURE 5: HALDEX AIR FILTER DRYER 12194 ........................................................................................................... 6
FIGURE 6: HALDEX CONSEP CONDENSER/SEPARATOR ................................................................................... 7
FIGURE 7: AIR PRESSURE REGULATING VALVE 12141A ............................................................................................. 9
FIGURE 8: AIR PRESSURE REGULATOR 12200 ................................................................................................. 9
FIGURE 9: AIR COMPRESSOR LOCATION 03061 ......................................................................................................... 9
FIGURE 10: PP-1 12142 .......................................................................................................................................... 10
FIGURE 11: RD-3 12136 .......................................................................................................................................... 11
FIGURE 12: TW-1 12138 ......................................................................................................................................... 11
FIGURE 13: BRAKE PEDAL ADJUSTMENT 12208 ............................................................................................ 11
FIGURE 14: DELCO SWITCH 12139 .................................................................................................................... 11
FIGURE 15: BENDIX SWITCH 12140 .................................................................................................................. 12
FIGURE 16: R-12 12074 .......................................................................................................................................... 12
FIGURE 17: R-14 12207 .......................................................................................................................................... 12
FIGURE 18: QR-1 12075 ......................................................................................................................................... 12
FIGURE 19: SR-7 12206 .......................................................................................................................................... 13
FIGURE 20: PR-4 12174 ............................................................................................................................... 13
FIGURE 21: LP-3 12214 .......................................................................................................................................... 13
FIGURE 22: DC-4 12134 ......................................................................................................................................... 13
FIGURE 23: THREE-WAY VALVE 12186 ................................................................................................................... 14
FIGURE 24: BRAKE PAD WEAR CHECK ON DRIVE AXLE ..................................................................................... 15
FIGURE 25: BRAKE PAD WEAR CHECK ON FRONT AND TAG AXLE 12119 .............................................. 15
FIGURE 26: RUNNING CLEARANCE 12116 ............................................................................................................... 17
FIGURE 27: CALIPER CARRIER MOUNTING BOLTS TORQUE SPECIFICATION – TAG AXLE & FRONT I-BEAM AXLE
12145 17
FIGURE 28: CALIPER CARRIER MOUNTING BOLTS - MERITOR DRIVE AXLE ................................................................... 17
FIGURE 29: TORQUE SPECIFICATION 11030 ...................................................................................................... 17
FIGURE 30: FRONT AXLE BRAKE AIR CHAMBER 12158 ............................................................................................ 20
FIGURE 31: DRIVE AXLE BRAKE AIR CHAMBER 12126 ................................................................................ 20
FIGURE 32: ABS ECU LOCATION 06617 ................................................................................................................... 23
FIGURE 33: ABS MODULATOR VALVE 12221 ................................................................................................. 23
FIGURE 34: ABS SENSOR LOCATION 12153 ..................................................................................................... 24
FIGURE 35: SPRING CLIP 12161 ............................................................................................................................... 24
FIGURE 36: HOSE FITTINGS 12053 ..................................................................................................................... 24
FIGURE 37: HOSE FITTING 12054 ....................................................................................................................... 25
FIGURE 38: HOSE FITTING 12055 ....................................................................................................................... 25
FIGURE 39: HOSE FITTING 12056 ....................................................................................................................... 25
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