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A quick catalogue of the use, maintenance and repair of common electric tools

Preface

Chapter I Introduction of Common Power Tools

Section I Overview of Power Tools

II Classification of Power Tools

III Structure of Power Tools

IV. Motors for Power Tools

Section II Introduction of Common Power Tools

Angular grinder

VII. Hand-held drill

VIII. Profile cutter

IX. Stone cutter

X. Electric planer

XI. Electric circular saw

XII. Chain saw

XIII. Curved saw

XIV. Straight grinder

XV. Flat grinder. Portable packaging machine

21, edge trimmer

22, blower

23, engraving machine

24, aluminum saw

25, belt sander

26, grooving machine

27, agitator

28, grinder

29, High-pressure cleaning machine

General safety rules for the use of electric tools in the third quarter

Use of electric tools and occupational diseases in the fourth quarter

Chapter II Single-phase series motor with electric tools

Section I Common electrical faults of single-phase series motor

First, rapid detection and judgment of electrical faults of single-phase series motor

Second, Common electrical faults and troubleshooting methods of single-phase series-excited motor

Section II Rotor of single-phase series-excited motor

I. Common phenomena that may cause complete machine faults when rotor faults occur

II. Detection of common faults of rotor

III. Basic knowledge of rotor winding repair of single-phase series-excited motor for electric tools

IV. Repair technology of rotor winding of single-phase series-excited motor for electric tools

Section III. Stator of single-phase series-excited motor < Composition and common faults of stator

II. Common phenomena that may cause the whole machine fault when the stator fails

III. Detection of common faults of stator

IV. Repair of stator winding

Section IV. Embedding sequence of rotor winding of single-phase series motor for electric tools

Embedding sequence of rotor coils with slots 1 and 9

Embedding sequence of rotor coils with slots 2 and 11

Embedding sequence of 13-slot rotor coils

embedding sequence of 15-slot rotor coils

6, Insertion sequence of 19-slot rotor coils

Chapter III DC motors for power tools

Section I Classification of DC motors

Section II Winding form of rotor assembly of DC motors

Section III Common faults and troubleshooting methods of DC motors

Section IV Simple test power supply for low-power DC motors

Section V Forward and reverse control of DC motors

Chapter IV Single-phase asynchronous motors for power tools. > section 1 classification, product code, main features and application scope of single-phase asynchronous motors

1. classification of single-phase asynchronous motors

2. main features and application scope of various series of single-phase asynchronous motors

section 2. control and protection of single-phase asynchronous motors

1. selection of external wires of single-phase asynchronous motors

2. wiring of single-phase asynchronous motors

3. Protection and control circuit of single-phase asynchronous motor

Section III Installation, starting and operation of single-phase asynchronous motor

I Installation of single-phase asynchronous motor

II Starting of single-phase asynchronous motor

III, Operation of single-phase asynchronous motor

Structure of single-phase asynchronous motor in the fourth quarter

Common faults and troubleshooting methods of single-phase asynchronous motor in the fifth quarter

Detection and repair of winding of single-phase asynchronous motor in the sixth quarter

Application of winding die of three-phase motor in single-phase motor in the seventh quarter

Three-phase asynchronous motor with power tools

Installation, operation and maintenance of three-phase asynchronous motor in the first quarter

I, Installation of three-phase asynchronous motor

Operation of two or three-phase asynchronous motor

Maintenance of three-phase asynchronous motor

Control and protection of three-phase asynchronous motor in the second quarter

Connection of one or three-phase asynchronous motor

Second, Control and protection of three-phase asynchronous motor

Five methods of changing three-phase asynchronous motor into single-phase operation in the third quarter

Common faults and troubleshooting methods of three-phase asynchronous motor in the fourth quarter

Repair of three-phase asynchronous motor in the fifth quarter

Common winding forms of three-phase asynchronous motor

14 quick formulas for embedding wires of two-phase and three-phase windings

Four quick steps for wiring of three-phase windings. Treatment methods for frequent bore sweeping of three-phase asynchronous motor-rotor finish turning method

V. Simple method for flexible selection of round enameled wire

VI. Drying method and technical requirements of winding

Section VI. Detection method of winding fault of three-phase asynchronous motor

Grounding fault of winding of one-phase asynchronous motor

Open circuit fault of winding of two-phase asynchronous motor

Three-phase asynchronous motor. Faults of reverse connection and wrong connection of windings of three-phase asynchronous motor

Rapid detection and judgment methods of windings of five-phase and three-phase asynchronous motor

Chapter VI Self-made special tools and finished tools for repair

Section 1 Self-made special tools

I. Rotor coil interturn short circuit tester

II. Coil drying heater

III. Universal riveting frame

IV. Wiring slot of commutator. Universal die for stator coil

VII. Quick-heating electric soldering iron

VIII. Lead riveting punch

IX. Coil punch

X. Lead pressing piece

XI. Bearing mounting punch

XII. Mica groove cleaning knife

XIII. T-shaped Allen wrench

XIV. Quick copper sleeve remover < Coil shaper hammer

Section II finished tools

I. Electrical instruments

II. Measuring tools

III. Manual tools

IV. Fitter tools

V. Other tools

Section III. Professional diagnosis and repair tools

I. Motor short-circuit tester

II. Bearing. Single-phase power supply and three-phase power supply

III. Safe current and safe voltage

IV. Selection and common faults of residual current circuit breakers

Chapter VII Parts and assembly for power tools

Chapter VIII Technical data of motor cores and windings for power tools

Chapter IX Frequently checked information.