Section 5B · Pages 212–257 (46 pages)
Air Brakes
From the 1966 GMC Truck Series 4000-6500 Service Manual
Air brake system equipment and maintenance, with an index of valves and components. Covers brake adjustments, slack adjusters, brake chambers, application valves, quick release and relay valves, pressure protection valve, tractor protection valve, double check valve, air tanks and lines, trailer connections and troubleshooting.
Read this section free, starting at page 212What this section covers
- Brake adjustments and slack adjusters
- Brake chambers
- Brake application valves
- Quick release and protection valves
- Air tanks and lines
- Trailer emergency control valves
- Troubleshooting
- Year
- 1966
- Make
- GMC
- Vehicle
- Medium Duty Trucks, Trucks
- Type
- Service Manual
- Models
- GMC Truck Series 4000 thru 6500, including L3500 (L, E, H, S, P series)
- Publication
- X-6733
- Pages
- 507
What’s inside
Service manual
- 0Lubricationpp. 8–25
- 1Cabs and Body Mountingspp. 26–107
- 2Framepp. 108–117
- 3AFront End Alignmentpp. 118–121
- 3BFront Axlepp. 122–125
- 3CFront Springs and Shock Absorberspp. 126–131
- 3DFront Hubs and Bearingspp. 132–135
- 4ARear Axle and Controlspp. 136–155
- 4BRear Springs and Suspensionpp. 156–159
- 4CRear Hubs and Bearingspp. 160–165
- 4DPropeller Shaftspp. 166–171
- 5AHydraulic Brakespp. 172–211
- 5BAir Brakespp. 212–257
- 5CParking Brakespp. 258–261
- 6AGasoline Enginespp. 262–287
- 6BToro-Flow Diesel Enginespp. 288–303
- 6DEngine MountingsCushion-type engine mountings: a single front mount on V6 engines and dual front mounts on in-line engines, with illustrations, cushion replacement and a mounting torque chart.pp. 304–305
- 6KEngine Cooling Systempp. 306–315
- 6MEngine Fuel Systempp. 316–367
- 6TAir Compressors and Governorspp. 368–375
- 6YEngine Electricalpp. 376–411
- 7ATransmission Control Linkage and On-Vehicle Servicepp. 412–421
- 7DClutch Controlspp. 422–429
- 7EClutchespp. 430–435
- 8AFuel Tank, Lines and Gauge SystemFuel tank mounting and straps, periodic inspection of tank and lines, tank unit replacement and a fuel gauge system trouble diagnosis chart.pp. 436–437
- 8BExhaust SystemExhaust system inspection for leaks, exhaust restriction and excessive back pressure, with a carbon monoxide warning for gasoline and diesel models.pp. 438–439
- 9AMechanical Steeringpp. 440–452
- 9BPower Steeringpp. 453–471
- 10Wheels and Tirespp. 472–477
- 11Sheet Metalpp. 478–481
- 12Chassis Electrical and Instrumentspp. 482–497
- 13Radiator and Surge Tankpp. 498–502







