
BRAKES
5-1
SECTION 5
BRAKES
The following notice applies to one or more steps in the assembly
procedure of components in this portion of the manual as indicated at
appropriate locations by the terminology "See N otice on page 1 of this
section".
NOTICE: This fastener is an important attaching part in that it could
affect the performance of vital components and systems, and/or could result
in major repair expense. It must be replaced with one of the same part
number or with an equivalent part if replacement becomes necessary. Do not
use a replacement part of lesser quality or substitute design. Torque values
must be used as specified during reassembly to assure proper retention of this
part.
CAUTION: When servicing wheel brake parts, do not create dust by
grinding or sanding brake linings or by cleaning wheel brake parts with a dry
brush or with compressed air. (A water dampened cloth should be used.)
Many wheel brake parts contain asbestos fibers which can become airborne if
dust is created during servicing. Breathing dust containing asbestos fibers
may cause serious bodily harm ."
CONTENTS
General D escription.............................................................. 5-1
Diagnosis................................................................................... 5-2
On-Vehicle Service.............................................................. 5-10
Pedal Travel............................................. ......................... 5-10
Stop Light S w itch ........................................................... 5-10
Bleeding and Flushing Brakes..................................... 5-10
Hydro-Boost Bleeding Procedure............................... 5-11
Brake Pipes........................................................................ 5-12
Brake H oses...................................................................... 5-12
Parking Brake Pedal or Handle................................... 5-17
Parking Brake (Propshaft) Internal Expanding...... 5-20
Parking Brake C able...................................................... 5-20
Combination V a lu e ......................................................... 5-21
Height Sensing Proportioning V alve......................... 5-21
Brake P e d a l...................................................................... 5-22
Brake Pedal R o d ............................................................. 5-23
Master C ylinder............................................................
Delco Disc Brake Shoe and Lining............................. 5-29
Bendix Disc Brake Shoe and Lining.......................... 5-34
Caliper Overhaul............................................................. 5-36
Rotor Servicing................................................................ 5-38
Brake Drum Shoe and Lining...................................... 5-39
Standard Drum Brake............................................... 5-39
Propeller Shaft Brake....................................... ......... 5-42
Brake D rum s.................................................................... 5-43
Wheel C ylinder............................................................... 5-43
Power Brake U n it............................................................ 5-44
Vacuum Booster...................................................... .
Hydro-Boost U n it....................................................... 5-44
Unit Repair............................................................................ 5-53
Delco Tandem Power Brake U nit................... ............. 5-53
Bendix Tandem Power Brake Unit 5-53
Delco Single Diaphragm Power Brake U n it.............. 5-62
Bendix Single Diaphragm Power Brake U n it........... 5-62
Bendix Hydro-Boost Power U n it.................................. 5-71
Bendix Hydro-Boost
Power U nit.............................. 5-76
Specifications........................................................................ 5-81
Brake System Description............................................. 5-81
Torque Specifications..................................................... 5-81
Special Tools................ ........................................... ............. 5-83
GENERAL DESCRIPTION
O P E R A T IO N OF M A ST E R CY LIN D ER
When the brake pedal is depressed, force is transferred
through the push rod to the master cylinder primary piston,
which moves forward. Under normal conditions, the
combination of hydraulic pressure and the force of the
primary piston spring move the secondary piston forward at
the same time. When the pistons have moved forward so
that their primary cups cover the bypass holes, hydraulic
pressure is built up and transmitted to the front and rear
brake assem blies. Hydraulic pressure behind the wheel
cylinder cups forces the pistons outward, causing the brakes
to be applied.
As brake pedal force is reduced, brake fluid pressure in
the master cylinder is also reduced. This allows the drum
brake retractor springs to retract the shoe and lining
assemblies from contact with the drum which forces brake
fluid out of the wheel cylinder assemblies and back into the
master cylinder assembly. The reduction in fluid pressure
also allows the caliper pistons to retract slightly by action of
the piston seal.
M aster cylinders designed for use with a system
incorporating low drag calipers. In addition to the standard
master cylinder functions, a quick take-up feature is
included. This provides a large volume of fluid to the
Содержание 1982 Light Duty Truck
Страница 1: ......
Страница 28: ...HEATER 1A 3 Fig lA 2 Heater Control C K Models Fig lA 3 Heater Control G Models...
Страница 37: ...Fig 1A 11 T E E V A L V E A S M TEE AND VALVE C36...
Страница 38: ...HEATER 1A 13 Fig 1A l2 Distributor Ducts G Models Fig 1A l5 Control Assembly G Models...
Страница 39: ...1A 14 HEATER V IE W A V IE W B Fig 1A l7 Control Cable Routing G Models...
Страница 42: ...HEATER 1A 19 Fig 1A 23 Auxiliary Heater Hose Routing...
Страница 56: ...AIR CONDITIONING IB 13 Chart 1B 4 Pressure Cycling CCOT System Diagnosis...
Страница 64: ...Fig 1B 17 C60 System Vacuum Diagram C K Series...
Страница 65: ......
Страница 66: ...Fig 1B 19 C60 Motor Home Chassis Wiring Diagram SWITCH AIR CONDITIONING IB 2 3...
Страница 67: ...IB 24 AIR CONDITIONING Fig IB 20 1 P A C Harness Wiring...
Страница 68: ...AIR CONDITIONING IB 25 VIE W A Fig IB 21 A C Compressor wiring...
Страница 76: ...AIR CONDITIONING IB 33 Fig 1B 26 Compressor Mounting...
Страница 91: ...IB 48 AIR CONDITIONING Fig 1B 59 C K Models Refrigerant Lines L6...
Страница 150: ......
Страница 162: ......
Страница 164: ...2D 2 BODY Fig 2D 4 Typical Utility Vehicle Model...
Страница 165: ...BODY 2D 3 Fig 2D 5 Typical Vans and Sport Vans Models Fig 2D 6 Typical Commercial Cutaway Model Van...
Страница 182: ...2D 20 BODY Fig 2D 51 Rear Door Controls Fig 2D 52 Rear Door Outside Handle and Lock Cylinder...
Страница 193: ...BODY 2D 31 BELTS 3RD SEAT Fig 2D 82 Seat Belt Installation Suburban Driver Seat Suburban...
Страница 194: ...2D 32 BODY Fig 2D 85 Passenger s Bucket Seat Chassis Cab...
Страница 195: ...BODY 2D 33 Fig 2D 88 Rear Bench Seats Suburban...
Страница 196: ...2D 34 BODY Fig 2D 89 CK Utility Seat Attachments...
Страница 197: ...BODY 2D 35 Fig 2D 90 Seat Separator Compartment and Door CK Models...
Страница 198: ...2D 36 BODY MOUNT 1 V MOUNT 2 CK 10 j Fig 2D 91 Body Mounting Chassis Cab Fig 2D 92 Body Mounting Crew Cab...
Страница 222: ......
Страница 223: ...BODY 2D 61 Fig 2D 139 Front Seat Belt Installation...
Страница 228: ......
Страница 234: ......
Страница 252: ...3B2 8 MANUAL STEERING GEAR Fig 3B2 11 Manual Steering Gear Exploded View...
Страница 256: ......
Страница 273: ...POWER STEERING SYSTEM 3B3 17 with LE3 Engine Exc HC4 LE4 LG9 LF4 LS9 LT9 and JB7 HC4 and JB8...
Страница 305: ...STEERING COLUMNS 3B4 17 Fig 3 B 4 1 9 S h ift T u b e A d ju s tm en t 3 S peed M an u al T ransm ission...
Страница 342: ......
Страница 389: ...REAR SUSPENSION 3D 7 Fig 3D 17 Rear Spring Installation C K Models...
Страница 390: ...3D 8 REAR SUSPENSION Fig 3D 20 Rear Spring lnstallation P10 20 Fig 3D 21 Rear Spring lnstallation P30...
Страница 428: ...4 B 1 4 REAR AXLE Fig 4B 8 Gear Tooth Nomenclature Fig 4B 9 G ear Tooth Contact Pattern Check...
Страница 444: ......
Страница 454: ......
Страница 468: ...4 B 5 2 REAR AXLE Fig 4B5 2 Rockwell Assembly...
Страница 480: ...4 B 5 1 4 REAR AXLE...
Страница 482: ...i...
Страница 502: ......
Страница 520: ......
Страница 533: ...Fig 5 5 Front Brake Pipes and Hoses C K Models BRAKES 5 13...
Страница 534: ...Fig 5 6 Front Brake Pipes and Hoses G M odels 5 14 B R A K E S...
Страница 535: ...Fig 5 7 Front Brake Pipes and Hoses P Models BRAKES 5 15...
Страница 536: ...5 16 BRAKES Fig 5 8 Rear Brake Hoses...
Страница 538: ...5 18 BRAKES Fig 5 10 Parking Brake System Typical...
Страница 539: ...BRAKES 5 19...
Страница 552: ...5 32 BRAKES Fig 5 23 Caliper to Stop Clearance BOOT Fig 5 24 Boot Installation Fig 5 25 Sleeve Installation...
Страница 570: ...5 50 BRAKES Fig 5 57 Power Steering Hose Routing C K Models...
Страница 571: ...BRAKES 5 51 Fig 5 58 Power Steering Hose Routing G Models...
Страница 572: ...Fig 5 59 Power Steering H ose Routing P Models 5 52 BRAKES...
Страница 577: ...BRAKES 5 57 4 CONT A SECONDARY DIAPHRAGM B SECONDARY POWER 4 CONT C PRIMARY D Fig 5 5A Service...
Страница 604: ......
Страница 625: ...NOTES ENGINE 6 21...
Страница 626: ......
Страница 629: ...IN LINE 6 6A1 3 OIL PRESSURE SENDING UNIT Fig 6A1 1 In Line Engine Lubrication...
Страница 630: ...6A1 4 IN LINE 6 Fig 6 A l 2 P Series Engine Front Mount...
Страница 631: ...IN LINE 6 6A1 5 Fig 6Al 3 P Series Engine Rear Mount Fig 6 A l 4 C Series Engine Rear Mounts...
Страница 634: ...6A1 8 IN LINE 6 Fig 6Al 7 K Series Engine Rear Mount...
Страница 660: ......
Страница 663: ...SMALL BLOCK 6A4 3 Fig 6A4 T Engine Lubrication...
Страница 664: ...6A4 4 SMALL BLOCK Fig 6A4 2 Engine Lubrication...
Страница 665: ...Fig 6A4 3 P Series Engine Mount Bracket...
Страница 667: ...SMALL BLOCK 6A4 7 Fig 6A 4 5 P Series Engine Front Mount...
Страница 668: ...6A4 8 SMALL BLOCK...
Страница 669: ...SMALL BLOCK 6A4 9 Fig 6A 4 7 K Series Engine Mounts...
Страница 670: ...6A4 10 SMALL BLOCK Fig 6A 4 8 C Series Engine Mounts...
Страница 703: ...MARK IV 6A5 7 Fig 6A 5 6 P Series Engine Front Mount...
Страница 704: ...6A5 8 MARK IV Fig 6 A 5 7 C Series Engine Mounts...
Страница 731: ...6 2 DIESEL 6A7 3...
Страница 760: ...6B 6 ENGINE COOLING Fig 6B 7 A C and A I R Adjustment...
Страница 771: ...ENGINE COOLING 6B 17 Fig 6B 20 Engine O il C o o le r 6 2L Diesel...
Страница 784: ......
Страница 807: ...CARBURETOR MODEL 2SE 6C2 9 Fig 6C2 6 Typical 2SE Carburetor Assembly...
Страница 820: ......
Страница 830: ...6C4 10 CARBURETOR MODEL M4ME M4MC 101368 Fig 6C4 12 M 4M C M 4M E Carburetor Exploded View...
Страница 848: ......
Страница 876: ......
Страница 888: ...6D 12 ENGINE ELECTRICAL Fig 6D 6C Generator Mounting Fig 6D 7C Generator Mounting...
Страница 919: ...ENGINE ELECTRICAL 6D 43...
Страница 923: ...Fig 6D 28D Engine Wiring LE9 LF3 LG9 LS9 D IS T R W IR E ASM E S C CONNECTOR E N G IN E HARNESS...
Страница 934: ...Fig 6D 8E Starter M otor Mounting...
Страница 944: ...i m 1 jry V pvh i HQdVOfcW 0 t V c i v 5 1 J A oh yj Vlk op a j A K j A fmJO Y A u e v c ii gty V AA...
Страница 974: ......
Страница 1011: ...Figure 350C 25A Neutral Engine Running AUTOMATIC TRANSMISSION 350C 11...
Страница 1054: ...Fig 7A 1C 400 Autom atic Transmission Side Cross Section Typical...
Страница 1152: ...700 R4 40 AUTOMATIC TRANSMISSION Figure 700 R4 76 Transmission Assembly Exploded View...
Страница 1162: ......
Страница 1189: ...89MM MANUAL TRANSMISSION 7B3 5 Fig 7 3 4 4 Speed 89mm Exploded View...
Страница 1219: ...CLUTCH 7C 5 Fig 7C 6 C K Truck Clutch Controls...
Страница 1220: ...Fig 7C 7 G Truck Clutch Controls...
Страница 1221: ...CLUTCH 7C 7 Fig 7C 8 P Truck Clutch Controls...
Страница 1234: ...7E 2 TRANSFER CASE Fig 7E 1 Model 208 Transfer Case Cross Section...
Страница 1237: ...M J TRANSFER CASE 7E 5 STRUT ROD SKID PLATES 102757 AUTOMATIC Fig 7E 5 Transfer Case Shifter Skid Plates and Strut Rods...
Страница 1238: ...7E 6 TRANSFER CASE WITH AUTOMATIC TRANSMISSION WITH MANUAL TRANSMISSION Fig 7E 6 Transfer Case Attachments...
Страница 1252: ...7E 20 TRANSFER CASE Fig 7E 39 Transfer Case Attachment Typical...
Страница 1278: ...8A 16 ELECTRICAL BODY AND CHASSIS Fig 8A 11 License Plate Lamps C K Series...
Страница 1280: ...8A 18 ELECTRICAL BODY AND CHASSIS VIEW A VIEW B Fig 8A 15 CK Series Rear Lamp W iring...
Страница 1281: ...ELECTRICAL BODY AND CHASSIS 8A 19 Fig 8A 16 CK Series Auxiliary W iring...
Страница 1289: ...Fig 8B 12 Seat Belt Reminder System Diagnosis SEAT BELT REMINDER LIGHT BUZZER DIAGNOSIS ELECTRICAL AND WIRING 8B 7...
Страница 1290: ...8B 8 ELECTRICAL AND WIRING Fig 8B 13 Seat Belt Reminder System Schematic...
Страница 1292: ......
Страница 1304: ...8C 12 INSTRUMENT PANEL AND GAGES INSTRUMENT CLUSTER KOOO OO K30 TRANSFER CASE I 6 Chart 8C F2 Speedometer Cable Routing...
Страница 1346: ...8C 54 INSTRUMENT PANEL AND GAGES Fig 8C 46 CK Series W iring 3 of 29...
Страница 1351: ...INSTRUMENT PANEL AND GAGES 8C 59 SUBURBAN Fig 8C 51 CK Series W iring 8 of 29...
Страница 1360: ...8C 68 INSTRUMENT PANEL AND GAGES POWCR WINDOWS RPO A 31 FOUR DR Fig 8C 60 C K Series W iring 17 of 29...
Страница 1363: ...INSTRUMENT PANEL AND GAGES 8C 71 ELECTRONIC SPARK CONTROL W ITH RPO L E 9 A U T 0 TRANS Fig 8C 63 CK Series W iring 20 of 29...
Страница 1364: ...8C 72 INSTRUMENT PANEL AND GAGES Fig 8C 64 CK Series W iring 21 of 29...
Страница 1365: ...INSTRUMENT PANEL AND GAGES 8C 73 CAB CRFW CAB CHASSIS Fig 8C 65 CK Series W iring 22 of 29...
Страница 1366: ...8C 74 INSTRUMENT PANEL AND GAGES Fig 8C 66 CK Series W iring 23 of 29...
Страница 1372: ...8C 80 INSTRUMENT PANEL AND GAGES RT SIDE MARKER L W LT SIOE MARKER FORWARD LAMP RPO V 22 Fig 8C 72 CK Series W iring 29 of 29...
Страница 1374: ...8C 82 INSTRUMENT PANEL AND GAGES Fig 8C 74 G Series W iring 2 of 19...
Страница 1375: ...INSTRUMENT PANEL AND GAGES 8C 83 Fig 8C 75 G Series W iring 3 of 19...
Страница 1376: ...8C 84 INSTRUMENT PANEL AND GAGES Fig 8C 76 G Series W iring 4 of 19...
Страница 1379: ...INSTRUMENT PANEL AND GAGES 8C 87 Fig 8C 79 G Series W iring 7 of 19...
Страница 1383: ...INSTRUMENT PANEL AND GAGES 8C 91 Fig 8C 83 G Series W iring 11 o f 19...
Страница 1384: ...8C 92 INSTRUMENT PANEL AND GAGES BUS BARGWO Fig 8C 84 G Series W iring 12 of 19...
Страница 1386: ...8C 94 INSTRUMENT PANEL AND GAGES 2P IN K 7 h B INSTRUMENT PANEL HARNESS DOME LP S W WIRE Fig 8C 86 G Series W iring 14 of 19...
Страница 1387: ...INSTRUMENT PANEL AND GAGES 8C 95 UNLOCK UP l e f t frt SPKR CHANNEL A Fig 8C 87 G Series W iring 15 of 19...
Страница 1390: ...8C 98 INSTRUMENT PANEL AND GAGES Fig 8C 90 G Series W iring 18 of 19...
Страница 1391: ...INSTRUMENT PANEL AND GAGES 8C 99 Fig 8C 91 G Series W iring 19 of 19...
Страница 1392: ...8C 100 INSTRUMENT PANEL AND GAGES Fig 8C 92 P Series W iring 1 of 11...
Страница 1393: ...INSTRUMENT PANEL AND GAGES 8C 101 Fig 8C 93 P Series W iring 2 of 11...
Страница 1395: ...INSTRUMENT PANEL AND GAGES 8C 103 RADIATOR LOW COOLANT LEVEL SENSOR 0 YEL BLK 60 SXL Fig 8C 95 P Series W iring 4 of 11...
Страница 1396: ...8C 104 INSTRUMENT PANEL AND GAGES Fig 8C 96 P Series W iring 5 of 11...
Страница 1398: ...8C 106 INSTRUMENT PANEL AND GAGES PROVISIONS FOR SIDE MARKER LP HIGH LOW SEAM Fig 8C 98 P Series W iring 7 of 11...
Страница 1399: ...INSTRUMENT PANEL AND GAGES 8C 107 Fig 8C 99 P Series W iring 8 of 11...
Страница 1400: ...8C 108 INSTRUMENT PANEL AND GAGES PROVISIONS FOR SIDE MARKER LP Fig 8C 100 P Series W iring 9 of 11...
Страница 1401: ...INSTRUMENT PANEL AND GAGES 8C 109 START RUN OF LOCK ACC Fig 8C 101 P Series W iring 10 of 11...
Страница 1402: ...8C 110 INSTRUMENT PANEL AND GAGES IGN SW START OFF LOCK P 3 0 0 3 2 D RIVE Fig 8C 102 P Series W iring 11 of 11...
Страница 1415: ...ACCESSORIES 9 13 RADIO NOISE BLOWER MOTOR Fig 9 6R Radio Diagnosis Chart B...
Страница 1416: ...9 14 ACCESSORIES D E A D R A D IO A M R A D IO I Fig 9 7R Radio Diagnosis Chart C...
Страница 1417: ...ACCESSORIES 9 15 DEAD RADIO AM FM RADIO Fig 9 8R Radio Diagnosis Chart D...
Страница 1435: ...t f l i t 1...