TCM 820-3 Wheel Loader Technical Manual SEW-62M-MAE - PDF DOWNLOAD

Page 85

SYSTEM / Electrical System STARTING START)

CIRCUIT

(KEY

SWITCH:

Forward/Reverse Lever in Neutral • When the key switch is turned to the START position, terminal B is connected to terminals ACC and C in the key switch. • Current from terminal ACC is supplied to terminal R in the starter relay 2 through fuse #9 in fuse box. • Current from terminal C in the key switch is supplied to the starter relay 1 coil through the neutral circuit in the forward/reverse lever, and to terminal S in the starter relay 2. • Therefore, starter relay 1 is excited and battery power is supplied to terminal S in the starter motor from starter relay 1. • Consequently, the relay in the starter motor is turned ON so that the starter motor rotates. • When the engine has started, the current from terminal L in the alternator stops. • One current from terminal BR in the key switch is supplied to the fuel pump through fuse #8 in fuse box so that it is operated. Another current is supplied to the engine stop solenoid holding side so that the plunger is held.

T2-3-9


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COMPONENT OPERATION / Others

1min
pages 203-205

COMPONENT OPERATION / Brake Master Cylinder

1min
pages 200-202

COMPONENT OPERATION / Axle

1min
pages 195-196

COMPONENT OPERATION / Axle

1min
pages 193-194

COMPONENT OPERATION / Axle

1min
pages 191-192

COMPONENT OPERATION / Axle

2min
pages 188-190

COMPONENT OPERATION / HST Motor

1min
pages 182-184

COMPONENT OPERATION / HST Pump

3min
pages 173-181

COMPONENT OPERATION / HST Pump

1min
page 172

COMPONENT OPERATION / HST Pump

1min
pages 170-171

COMPONENT OPERATION / HST Pump

1min
page 169

COMPONENT OPERATION / HST Pump

1min
pages 164-168

COMPONENT OPERATION / Steering Valve

1min
pages 161-164

COMPONENT OPERATION / Steering Valve

1min
page 160

COMPONENT OPERATION / Steering Valve

1min
page 159

COMPONENT OPERATION / Steering Valve

1min
page 156

COMPONENT OPERATION / Control Valve

2min
pages 152-156

COMPONENT OPERATION / Control Valve

1min
pages 150-151

COMPONENT OPERATION / Control Valve

4min
pages 139-149

COMPONENT OPERATION / Priority Valve

1min
pages 133-136

COMPONENT OPERATION / Priority Valve

1min
pages 131-132

COMPONENT OPERATION / Priority Valve

1min
page 130

SYSTEM / Electrical System

1min
page 122

SYSTEM / Electrical System

1min
pages 121-122

SYSTEM / Electrical System

1min
pages 120-121

SYSTEM / Electrical System

1min
page 113

SYSTEM / Electrical System

1min
page 111

SYSTEM / Electrical System

1min
page 109

SYSTEM / Electrical System

1min
page 99

SYSTEM / Electrical System

1min
page 97

SYSTEM / Electrical System

1min
page 95

SYSTEM / Electrical System

1min
page 93

SYSTEM / Electrical System

1min
page 91

SYSTEM / Electrical System

1min
page 89

SYSTEM / Electrical System

1min
page 88

SYSTEM / Electrical System

1min
page 85

SYSTEM / Electrical System

1min
page 83

SYSTEM / Hydraulic System

1min
pages 75-76

SYSTEM / Hydraulic System

1min
pages 73-74

SYSTEM / Hydraulic System

1min
page 71

SYSTEM / Hydraulic System

1min
page 69

SYSTEM / Hydraulic System

1min
page 68

SYSTEM / Hydraulic System

1min
page 65

SYSTEM / Hydraulic System

1min
page 63

SYSTEM / Hydraulic System

1min
page 61

SYSTEM / Hydraulic System

1min
pages 59-60

SYSTEM / Hydraulic System

1min
pages 56-58

SYSTEM / Control System

1min
pages 53-56

SYSTEM / Control System

1min
pages 49-50

SYSTEM / Control System

1min
pages 44-46

SYSTEM / Control System

1min
pages 43-44

SYSTEM / Control System

1min
pages 42-43

SYSTEM / Control System

1min
pages 41-42

SYSTEM / Control System

1min
page 39
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