6 - 7
HYDRAULIC CIRCUIT
CASE TRAINING CENTER
AUGUST 2000
Description of Operation
Swing Operation, Swing Parking Circuit
When the engine is started and the swing lever is in neutral, the swing brake solenoid valve is turned ON
(24 V input) and the swing parking brake is activated.
When the swing pressure switch is turned ON by operating the lever, output to the swing brake solenoid
valve from the controller is turned OFF and the swing parking brake is released. Thus swing operation is
enabled. When the swing lever is in neutral and attachments such as arm is moved, lateral force is
produced while swinging. In order to prevent the dragging caused by braking, this parking bake is designed
to be released.
Signals from the pressure sensor A1 or A2 enters the controller and at the time when either one reaches
14.7 MPa, the output to swing brake solenoid valve from the controller is turned OFF and the swing parking
brake is released.
In 5 seconds after the swing pressure switch or attachment pressure switch is turned OFF or the delivery
pressure from A1 or A2 is below 14.7 MPa, the solenoid valve is turned ON and the swing parking valve is
activated.
If the swing lock switch is turned ON, even the swing pressure switch or attachment pressure switch is
turned ON, the swing lock switch has the priority and the parking brake remains unreleased.
When the
swing lock switch is turned ON and the swing lever is in operation, the swing spool in the main control valve
will be changed over.
Key switch
Swing pressure
switch
A1 or A2 (MPa)
pressure on
pressure sensor
Swing brake
solenoid valve
Swing motor
mechanical brake
OFF
OFF
0
OFF
ON
ON
OFF
0
ON
ON
ON
ON
0 or swing
operation
pressure
OFF
OFF
ON
OFF
14.7 MPa or
more
OFF
OFF
Summary of Contents for CX130
Page 1: ...HYDRAULIC EXCAVATOR CX130 CASE TRAINING CENTRE AUGUST 2000...
Page 2: ......
Page 3: ...HYDRAULIC EXCAVATOR CX130 CASE TRAINING CENTRE AUGUST 2000 SECTION N 1 GENERALE INTRODUCTION...
Page 4: ...CENTRE DE FORMATION CASE EDITION AOUT 2000...
Page 24: ......
Page 25: ...HYDRAULIC EXCAVATOR CX130 CASE TRAINING CENTRE AUGUST 2000 SECTION N 2 COMPONENTS LAYOUT...
Page 26: ...CENTRE DE FORMATION CASE EDITION AOUT 2000...
Page 33: ...HYDRAULIC EXCAVATOR CX130 CASE TRAINING CENTRE AUGUST 2000 SECTION N 3 COMPONENTS...
Page 34: ...CENTRE DE FORMATION CASE EDITION AOUT 2000...
Page 37: ...COMPONENTS CX130 3 3 CASE TRAINING CENTER AUGUST 2000 Hand remote control...
Page 39: ...COMPONENTS CX130 3 5 CASE TRAINING CENTER AUGUST 2000 Foot control...
Page 41: ...COMPONENTS CX130 3 7 CASE TRAINING CENTER AUGUST 2000 Auxiliary foot control...
Page 53: ...COMPONENTS CX130 3 19 CASE TRAINING CENTER AUGUST 2000 Pump...
Page 54: ...3 20 COMPONENTS CX130 CASE TRAINING CENTER AUGUST 2000 Pump follow...
Page 55: ...COMPONENTS CX130 3 21 CASE TRAINING CENTER AUGUST 2000 Pump follow...
Page 56: ...3 22 COMPONENTS CX130 CASE TRAINING CENTER AUGUST 2000 Pump control block follow...
Page 57: ...COMPONENTS CX130 3 23 CASE TRAINING CENTER AUGUST 2000 Pump control block...
Page 58: ...3 24 COMPONENTS CX130 CASE TRAINING CENTER AUGUST 2000 Pump rotating group assembly follow...
Page 59: ...COMPONENTS CX130 3 25 CASE TRAINING CENTER AUGUST 2000 Pump rotating group assembly follow...
Page 60: ...3 26 COMPONENTS CX130 CASE TRAINING CENTER AUGUST 2000 Pilot pressure pump...
Page 61: ...COMPONENTS CX130 3 27 CASE TRAINING CENTER AUGUST 2000 Pilot pressure pump...
Page 62: ...3 28 COMPONENTS CX130 CASE TRAINING CENTER AUGUST 2000 Proportional solenoid valve...
Page 63: ...COMPONENTS CX130 3 29 CASE TRAINING CENTER AUGUST 2000 Proportional solenoid valve...
Page 68: ...3 34 COMPONENTS CX130 CASE TRAINING CENTER AUGUST 2000 Boom savety valve H B C V...
Page 69: ...COMPONENTS CX130 3 35 CASE TRAINING CENTER AUGUST 2000 Dipper arm savety valve H B C V...
Page 71: ...COMPONENTS CX130 3 37 CASE TRAINING CENTER AUGUST 2000...
Page 73: ...COMPONENTS CX130 3 39 CASE TRAINING CENTER AUGUST 2000...
Page 74: ...3 40 COMPONENTS CX130 CASE TRAINING CENTER AUGUST 2000 Dual flow valve...
Page 75: ...COMPONENTS CX130 3 41 CASE TRAINING CENTER AUGUST 2000 Dual flow valve...
Page 76: ...3 42 COMPONENTS CX130 CASE TRAINING CENTER AUGUST 2000 Swing motor...
Page 77: ...COMPONENTS CX130 3 43 CASE TRAINING CENTER AUGUST 2000 Swing motor...
Page 78: ...3 44 COMPONENTS CX130 CASE TRAINING CENTER AUGUST 2000 Travel motor...
Page 79: ...COMPONENTS CX130 3 45 CASE TRAINING CENTER AUGUST 2000 Travel motor...
Page 80: ...3 46 COMPONENTS CX130 CASE TRAINING CENTER AUGUST 2000 Travel motor follow...
Page 81: ...COMPONENTS CX130 3 47 CASE TRAINING CENTER AUGUST 2000 Travel motor follow...
Page 82: ...3 48 COMPONENTS CX130 CASE TRAINING CENTER AUGUST 2000 Swivel joint...
Page 83: ...COMPONENTS CX130 3 49 CASE TRAINING CENTER AUGUST 2000 Swivel joint...
Page 84: ...3 50 COMPONENTS CX130 CASE TRAINING CENTER AUGUST 2000 Flow restrictor...
Page 85: ...COMPONENTS CX130 3 51 CASE TRAINING CENTER AUGUST 2000 Boom cylinder...
Page 88: ...CENTRE DE FORMATION CASE EDITION AOUT 2000...
Page 103: ...DIAGNOSTIC SELECTION 4 15 CASE TRAINING CENTER AUGUST 2000...
Page 141: ...HYDRAULIC EXCAVATOR CX130 CASE TRAINING CENTRE AUGUST 2000 SECTION N 5 ELECTRICAL...
Page 142: ...CENTRE DE FORMATION CASE EDITION AOUT 2000...
Page 143: ...CENTRE DE FORMATION CASE EDITION AOUT 2000...
Page 190: ......
Page 191: ...HYDRAULIC EXCAVATOR CX130 CASE TRAINING CENTRE AUGUST 2000 SECTION N 6 HYDRAULIC CIRCUIT...
Page 192: ...CENTRE DE FORMATION CASE EDITION AOUT 2000...
Page 193: ...CENTRE DE FORMATION CASE EDITION AOUT 2000...
Page 215: ...HYDRAULIC CIRCUIT 6 22 CASE TRAINING CENTER AUGUST 2000...
Page 219: ...HYDRAULIC CIRCUIT 6 26 CASE TRAINING CENTER AUGUST 2000 Clamshell option Multipurpose option...
Page 223: ...HYDRAULIC CIRCUIT 6 30 CASE TRAINING CENTER AUGUST 2000 PUMP CX 130 Pump engine stopped...
Page 234: ......
Page 235: ...HYDRAULIC EXCAVATOR CX130 CASE TRAINING CENTRE AUGUST 2000 SECTION N 7 SETTINGS...
Page 236: ...CENTRE DE FORMATION CASE EDITION AOUT 2000...
Page 260: ......