Hoover revolutionized the vacuum cleaner industry when they introduced the Dial-A-Matic in 1963, with it's entirely different "clean-air" upright design. This is a comprehensive service manual that covers all of the Dial-A-Matic models, both self-propelled and non self-propelled. Step-by-step service instructions take you through complete disassembly of the machine, as well as disassembling and servicing the motor. Hoover again changed the vacuum cleaner industry in 1969, when it introduced the Self-Propelled Dial-A-Matic. This service manual also covers disassembling and servicing the actual power-drive transmission, which was at some point deemed too complicated and time-consuming to service, and was generally replaced as a complete unit if it deemed troublesome. There are some wonderful exploded views of the machine, motor, and power drive unit.
Dial-A-Matic models include (non power-drive): 1100, 1110, 1118, 1120, 1130, 1136, 1140, 1149, 1151, 1157, U5007, U5007-001, U5015, U5017
and power-drive models: 1170, 1176, 1178, U6003, U6003-001, U6007, U6039, U6039-030, U6041, U6049