Curso Cat 320-330B Sistema STMG 1

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Transcript of Curso Cat 320-330B Sistema STMG 1

Service Training MALAGA

320B/330B Hydraulic ExcavatorsI. PRODUCT DESCRIPTION

COUNTER WEIGHTRADIATOR PUMP

ENGINE

OIL COOLER

RELAY BOX

CTRLLR

FUEL TANK

CAB TOOL BOX

BTY

HYD TANK

CONT VALVE

Francis Jun 98

320B330B HYDRAULIC EXCAVATORSCHAPTER : Product Description

COMPONENT LAYOUT320ACOUNTER WEIGHT PUMP RADIATOR ENGINE OIL COOLER BTY HYD TANK

322ACOUNTER WEIGHT PUMP RADIATOR ENGINE OIL COOLER BTY

325ACOUNTER WEIGHT PUMP RADIATOR ENGINE OIL COOLE R FUEL TANK HYD TANK CTLLR HYD TANK CTLLR CAB RELAY BOX BTY

330ACOUNTER WEIGHT PUMP RADIATOR ENGINE OIL COOLE R FUEL TANK

HYD TANK

CONT VALVE

CONT VALVE

CTLLR FUEL TANK CAB TOOL BOX TOOL BOX FUEL TANK

CTLLR

CAB

RELAY BOX

BTY

CONT VALVE

CONT VALVE

BTY

CAB

320BCOUNTER WEIGHT PUMP RADIATOR ENGINE OIL COOLER BTY HYD TANK

322BCOUNTER WEIGHT PUMP RADIATOR ENGINE OIL COOLER BTY HYD TANK

325BCOUNTER WEIGHT RADIATOR PUMP ENGINE PUMP

330BCOUNTER WEIGHT RADIATOR ENGINE

BTY

RELAY BOX FUEL TANK

RELAY BOX FUEL TANK

RELAY BOX CTRLLR FUEL TANK

BTY

RELAY BOX CTRLLR FUEL TANK

CTRLLR

CTRLLR

TOOL BOX

CAB

TOOL BOX

CAB

TOOL BOX CAB

TOOL BOX CAB

MODEL 320A 320B MODEL 325A 325B

PUMPS 2 Main 1 Pilot 2 Main 1 Pilot PUMPS 2 Main 1 Pilot 2 Main 1 Pilot

FLOW 370 l/min 20 l/min 370 l/min 4O l/min FLOW 420 l/min 20 l/min 210 l/min 37 l/min

PRESSURE 32000 / 35000 kPa 3500 kPa 35000 kPa 4000 kPa PRESSURE 32000 / 35000 kPa 3500 kPa 35000 kPa 4000 kPa

MODEL 322A 322B MODEL 330A 330B

PUMPS 2 Main 1 Pilot 2 Main 1 Pilot PUMPS 2 Main 1 Pilot 2 Main 1 Pilot

FLOW 410 l/min 20 l/min 410 l/min 40 l/min FLOW 466 l/min 20 l/min 466 l/min 40 l/min

PRESSURE 32000 / 35000 kPa 3500 kPa 35000 kPa 4000 kPa PRESSURE 32000 / 35000 kPa 3500 kPa 35000 kPa 4000 kPa

Page:

BTY

HYD TANK

CONT VALVE

CONT VALVE

CONT VALVE

OIL COOLER HYD TANK

CONT VALVE

OIL COOLER

2

320B330B HYDRAULIC EXCAVATORSCHAPTER : Product Description

DIFFERENCES FROM 300A HYDRAULIC EXCAVATORS

1. CONTROL VALVE 2. BOOM DRIFT REDUCTION VALVE 3. STICK DRIFT REDUCTION VALVE 4. HYDRAULIC LOCK VALVE 5. PILOT MANIFOLD 6. SWING MOTOR BRAKE RELEASE 7. TRAVEL PILOT VALVE 8. IMPLEMENT PILOT VALVE 9. PILOT PUMP FLOW RATE 10. TAMPING MODE 11. BLCV 12. CROSS SENSING

Page:

3

18

1

2

3

4

5 16

6

7

8

9

28 35 14

m

34

CHAPTER : Product Description

e32 391. 2. 3. 4. 5. 6. 7. 8. 9. 14. 16. 17. Stick 2 Control Valve Boom 1 Control Valve Bucket Control Valve Attachment Control Valve Right Travel Control Valve Left travel Control Valve Swing Control Valve Stick 1 Control Valve Boom 2 Control Valve Main Control Valve (Left Section) Main Relief Valve Line Relief Valve (Bkt rod end). 18. 28. 29. 30. 31. 32. 33. 34. 35. 37. 38. 39.

l17 31 30 33 37

320B330B HYDRAULIC EXCAVATORS

38 29

Line Relief Valve (Bkt head end) Line Relief Valve (stk head end) Line Relief Valve (Stk rod end) Inlet Port (Upper pump) Inlet Port (Lower pump) Boom Drift Reduction Valve Stick Combination Flow Port. PTL Signal Port MCV (Right Section0 Stick Line Relief Valve (Rod End) Stick Drift Reduction Valve Line Relief Valve (Bm head end)

MAIN CONTROL VALVE( Outside View )e. Return Port l. Return Port m. Outlet Combination Port

Page: 4

320B330B HYDRAULIC EXCAVATORSCHAPTER : Product Description

ELECTRO/HYDRAULIC LOCK VALVE

B4 B5 B3

B2 B1

107-7058

A5 A4

A3 A2

A1

B5 B4 B3 B2 B1

T

P

A5 A4 A3 A2 A1

VALVE SCHEMATIC

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PILOT OIL MANIFOLD SCHEMATIC

Return Oil

To Logic Circuit

To Pump Regulator

From Stick Pilot Control Valve

To Stick Control Valve 2 LEVEL FINISH SOLENOID

To Swing Brake TRAVEL SPEED SOLENOID TRENCHING SOLENOID

121-1490

121-1491

121-1490

PRESSURE REDUCING VALVE

111-9916

CHAPTER : Product Description

To Hydr. Actuation Valve

320B330B HYDRAULIC EXCAVATORS

Pilot Relieve valve

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From Main Control Valve Group Pilot Pump

320B330B HYDRAULIC EXCAVATORSCHAPTER : Product Description

SWING CIRCUIT SCHEMATIC1. 2. 3. 4. 5. 6. 7. 9. 10. a. b. c. Swing Motor Rotary Group. Swing Anti-reaction Valve Spool Line Relief Valve Main Control Valve Slow Return Check Valve Lower Pump Upper Pump Solenoid Valve Swing Brake Port Port Makeup Port

9 1

10

c

3

2

4

a

b

5

7 6

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320B330B HYDRAULIC EXCAVATORSCHAPTER : Product Description

TRAVEL PILOT CONTROL VALVEDIFFERENCES

300A 110 - 5608

300B 123 - 2148

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320B330B HYDRAULIC EXCAVATORSCHAPTER : Product Description

320 -330B TRAVEL PILOT CONTROL VALVE

T

P

Pilot Pressure

Travel Speed

4000 kPa

300A

300B

Lever Stroke

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320B330B HYDRAULIC EXCAVATORSCHAPTER : Product Description

PILOT CONTROL VALVE

1 3 2

From Main Control Valve

c

b

a

300A110-5621

To Main Control Valve Pilot Pump

300B123-2147

d e f g Fig. A

To Main Control Valve

Pilot Pump To Main Control Valve

4000 kPa

Pilot Pressure

3000 kPa

300A800 kPa

300B Lever Stroke

1. Rod 2. Spring 3. Spool a. Line to control valve b. Line from control valve c. Return passage d. Larg diameter e. Small diameter f. Large shoulder area g. Small shoulder area h. Inlet passage

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10

320B330B HYDRAULIC EXCAVATORSCHAPTER : Product Description

ENGINE / PUMP CONTROL

Instrument Panel

Engine Speed Sensor

Throttle Dial

Engine Dial Position Feed Back Sensor

Pump

ELECTRONIC CONTROL UNITEngine Speed

Governor Motor Backup Circuit

(Controller)Implement Pressure Switch Travel Pressure Switch Attachment Pressure Switch Pump Flow

Proportional Reducing Valve

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11

320B330B HYDRAULIC EXCAVATORSCHAPTER : Product Description

BACKUP SYSTEM

1

3

M2 6

4

24V

7 5 10 8 9

1. Controller 2. Governor Actuator Drive Circuit 3. Governor Actuator 4. Speed Change Switch 5. Swing Parking Brake Drive Circuit 6. Backup Resistor 7. Swing Parking Brake Valve 8. Proportional reducing Valve Drive Circuit 9. Buckup Switch 10. Proportional Reducing Valve

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320B330B HYDRAULIC EXCAVATORSCHAPTER : Product Description

INSTRUMENT PANEL

BOOM UP PRIORITYKw

POWER PLUS MODE AEC ON/OFFAUT M/min

SWING PRIORITY

FINE CONTROL

SPEED TRAVEL HIGH/LOW

USER MODE

ALARM CANCEL

R

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320B330B HYDRAULIC EXCAVATORSCHAPTER : Product Description

300A /300B INSTRUMENT PANELDIFFERENCES

Kw

AU T M/mi n

POWER

WORK ON

AEC

1 2

LIGHT

WIPER

WASHER

1 2ALARM CANCELR

TRAVEL SPEED

300A HEX

300B HEX

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320B330B HYDRAULIC EXCAVATORSCHAPTER : Product Description

POWER MODE SELECTIONPOWER UP

FINE CONTROL MODEKw

Kw

ECONOMY

AUTM m in

R

INSTRUMENT PANEL

If the power mode is on the economy position during trave, engine output automatically increases by one level to increase travel speed.

Power Mode position High power Economy Fine Control

Excavation 100 % 90 % 70 %

Travel 100 % 100 % 70 %

NOTE: The hammer mode must be activated with Power + Mode and Boom Priority selected Page: 15

320B330B HYDRAULIC EXCAVATORSCHAPTER : Product Description

POWER MODE APPLICATION

The table below gives some application examples with suggested power modes ;

POWER

CHARACTERISTICS Engine power is maximazed. HP is at maximum and underspeed control is in effect at th thrttle dial "10" position General setting. Fuel economy is good and sound level is reduced. For work in regions requiring additional sound level reduction, this mode can be used for precision work, although is lowr

Power Up POWER MODE Economy

100 %

90 %

FINE CONTROL

70 %

Mode Power Up Economy Fine Control

% of Avail HP 100 90 70

Gov. Setting 10 9 7

Eng. Speed 2180 rpm 2050 rpm 1750 rpm

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320B330B HYDRAULIC EXCAVATORSCHAPTER : Product Description

WORK MODE SELECTOR

BOOM UP PRIORITY FINE CONTROL

SWING PRIORITY

Kw

T AU M m in

USER MODE

R

Only one of the four switches on the left side of the instrument panel may be selected. When a new switch is selected, the previous switch automatically turns off. If the engine is switched off, the position of these switches is recorded, and the switches preset to this position when the engine is started again.

NOTE: The hammer mode must be activated with Power + Mode and Boom Priority selected

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320B330B HYDRAULIC EXCAVATORSCHAPTER : Product Description

WORK MODE APPLICATION