Section 7 · Pages 286–342 (57 pages)

Electrical

From the 1952–1954 GMC Truck Models 620–980 Maintenance Manual

Eight sections: wiring and miscellaneous electrical (wiring diagrams with wire color chart, junction panel, circuit breakers, horns and relays), battery, starting system, ignition system (distributor, coil, condenser, spark plugs), generator, regulator, lighting system and electrical specifications. Delco-Remy units are covered in 6-volt and 12-volt form, with regulator and generator application by model and a light bulb chart.

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What this section covers

  • Wiring diagrams and wire color chart
  • Battery
  • Starting motor and solenoid
  • Ignition system and distributor
  • Generator and drive
  • Regulator
  • Lighting, switches and stop lights
  • Electrical specifications and bulb chart
Year
1952, 1953, 1954
Make
GMC
Models
Series 620, 630, 660, 670, 740, 750, 850, 920, 930, 950, 970, 980 (gasoline and diesel, incl. D, F, W prefixes)
Publication
Form X5404
Pages
576

What’s inside

Front matter

  1. Introduction, Model Data and IndexesCover, warranty, title page with the Quick Index tabs, how to use the manual, the model data table of series, wheelbases and engine types for 1952–1954, serial number and parts identification plate locations, the section index and the alphabetical index.pp. 1–10

Maintenance manual

  1. 1Front Axlepp. 11–22
  2. 2Rear Axlepp. 23–156
  3. 3Cab and Bodypp. 157–180
  4. 4Brakespp. 181–256
  5. 5Clutchpp. 257–267
  6. 6Cooling Systempp. 268–285
  7. 7Electricalpp. 286–342
  8. 8Enginepp. 343–384
  9. 11Framepp. 385–388
  10. 12Fuel Systempp. 389–422
  11. 13Lubricationpp. 423–448
  12. 16Steeringpp. 449–476
  13. 17Transmissionspp. 477–552
  14. 18Propeller Shaftspp. 553–560
  15. 19Hubs, Wheels and Tirespp. 561–572

Special tools

  1. Special Toolspp. 573–576