300BAUX (Excavadora Hidraulica 300B)

7/30/2019 300BAUX (Excavadora Hidraulica 300B)

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Service TrainingMALAGA

300B Hydraulic Excavators

AUXILIARY

HYDRAULIC CONTROL

FrancisNOV 97


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2

Page:

3T-3132

Hammer2ndSpeed

Lo Hi

L970 - GY

547-OR

549-PK

548-GY

546-BU

954-GN

Aux Hyd Contr

950-BR

A849-OR

585-YL

A850-WH

PILOTPUMP

951-PK

LHS RHS

AUXILIARYCONTROLVALVE

198-PK

NFC

AUX. PILOT MANIFOLD

952-OR

117-8919

191 - WH

131-9203

106-0179

961-BR

MAINPUMPS

200 - BK

NFC

PILOT PUMP

1114878

Medium Press Circ

HammerPress.Switch

37

COMBINED CIRCUITNEUTRAL (Single Action)

121-1491121-1491111-9916

AC1 AC2


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Page:

3T-3132

Hammer2ndSpeed

Lo Hi

EL970 - GY

547-OR

549-PK

548-GY

546-BU

954-GN

Aux Hyd Contr

950-BR

PILOTPUMP

A849-OR

NFC

117-8919

585-YL

A850

-WH

MAINPUMPS

951-PK

NFC

LHS RHS

198-PK

952-OR

191 - WH

131-9203

106-0179

961-BR

200 - BK

PILOT PUMP

1114878

Medium Press Circ

HammerPress.Switch

37

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

300B COMBINED CIRCUITHAMMER ACTIVATED

AUX. PILOT MANIFOLD

121-1491121-1491111-9916

ATTACHMENTCONTROLVALVE


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4

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Medium Press Circ

HammerPress.

Switch

37

PILOTPUMP

AUXILIARYCONTROLVALVE

NFC

117-8919

MAINPUMPS

NFC

300B COMBINED CIRCUITHAMMER/BOOM ACTIVATED

AUX. PILOT MANIFOLD

121-1491121-1491111-9916

3T-3132

Hammer2ndSpeed

Lo Hi

EL970 - GY

547-OR

549-PK

548-GY

546-BU

954-GN

Aux Hyd Contr

950-BR

A849-OR

585-YL

A850-WH

951-PK

LHS RHS

198-PK

952-OR

191 - WH

131-9203

106-0179

961-BR

200 - BK

PILOT PUMP

1114878

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


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5

Page:

Medium Press Circ

HammerPress.Switch

37

PILOT

PUMP

ATTACHMENTCONTROL

VALVE

NFC

117-8919

MAINPUMPS

NFC

300B COMBINED CIRCUITDOUBLE ACTION

AUX. PILOT MANIFOLD

121-1491121-1491111-9916

3T-3132

AttachCtrl Vl

MediumPress

Lo Hi

EnL970 - GY

Aux Hyd Contr

LHS RHS

191 - WH

131-9203

106-0179

200 - BK

PILOT PUMP

1114878


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6

Page:

A

M

LS

25

175

131-9203

T P

3T-3132

AttachCtrl Vl

MediumPress

Lo Hi

Eng / Pump CtrlL970 - GY

547-OR

549-PK

548-GY

546-BU

954-GN

Aux Hyd Contr

950-BR

A849-OR

585-YL

A850-WH

LHS RHS

198-PK

952-OR

961-BR

200 - BK

PILOT PUMP

1114878

117-8919

AUX PUMP132-5975

VALVE GROUP125-8075

200-BK

191 - WH

106-0179

HammerPress.

Switch

37

(ATCH VAL)

ABC

A847-YL

A848-PK

200-BK

To AC1 aux sol.To AC2 aux sol.

To F/C aux prop. sol.

MEDIUM PRESSURE CIRCUIT (Neutral)


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CHAPTER : Auxiliary Hydraulic Control

AUXILIARY HYDRAULIC CONTROLLER

(122-9897)

When the controller in "ON", the first information displayed is the version of thecontroller.

The controller "Display/Keypad" has the following modes:

- Active mode (Aux/Hyd controller is operating)- Inactive mode (Aux/Hyd controller is not operating)- Programming mode

ACTIVE MODE

During the Aux/Hyd controller operation, the Display will visualize the selected

working mode. The Aux/Hyd controller has 4 different working modes:

1 L 1

2 H 1

3 L 2

4 H 2

The 4 different working mode are combined as follows:

1 _ _ _ L 1 = Low Mode One Way

2 _ _ _ H 1 = High Mode One Way

3 _ _ _ L 2 = Low Mode Two Way

4 _ _ _ H 2 = High Mode Two Way

Example : _ _ 2 . 1 0 _

NB. In each major change (software or hardware) that will affect the operation of thecontroller, the left side digit will be increased.In each minor changes, the digits on the right will be increased.


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(122-9897)

To visualize all these information the Arrow Key must be pushed.The first information shown on the display will be the number of ours of the currentactive working mode. Pressing the Arrow Key again, will display the next operatingengine speed information. Pressing The Arrow Key again, the operating flow willbe displayed.

- Number of hours the tool has already accomplished in that working mode.- Operating engine speed set up for that working mode.- Operating flow set up for that working mode.

INACTIVE MODE

2 H 1

2 X

2 H 1

2 H 1

Example : Active Working Mode

X X Xh

E Y Y

F n n

3 X

3 L 2

3 L 2

X X Xh

E Y Y

F n n

4 X

4 H 2

4 H 2

X X Xh

E Y Y

F n n

1 X

1 L 1

1 L 1

X X Xh

E Y Y

F n n

2 XX X Xh

NB. Use the arrow key to visualize all settings by scrolling down.


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(122-9897)

The engine speed parameters can be set between 01 and 10 (speed dial position).

The operating flow parameters can be set between 00 and 99.

2 H 1

Engine speed parameters display

PARAMETERS ADJUSTMENT

E 0 9

2 H 1

Operating flow parameters

E 5 0

As an example we have recorded on a 325B the following flow values. The enginespeed has been set at dial 9 and the machine in One Way configuration.

Flowparam.

FlowLtr/min

SysPresskPa

NFCPresskPa

10 102 15000 3081

20 151 15300 2693

25 177 15000 2504

30 198 15100 2328

35 215 15000 2162

40 234 14900 2007

262 15100 183945

50

55

60

297 14800 1696

323 15100 1550

325 15200 1410

DISPLAY WINDOW

NOTE.The above table should be consideredas reference only. As the Aux/Hydcontroller is regulating the pump flowthrough the NFC pressure, it is notguarantee that each machine will havethe same flow for the same flow param.setting.


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The adequate flow and engine speed parameters must be adjusted within theprogramming mode to meet the auxiliary tool requirements. In most of the cases,the machine will probably have to be tested prior to recording these values.

The programming mode enables the machine to be tested without living the mode,the Keypad remains active and the Display still visualizing whether the flow or enginespeed parameters during the Aux/Hyd controller operation. The best practice will bewithin the programming mode to set first the engine speed to the desire value andthen, increase the flow parameters step by step starting from the minimum value,testing each of the values until the requested flow is reached. (Ref. to Hammerinstallation procedure)

TESTING WITHIN THE PROGRAMMING MODE

ERROR CODES:

Error 1 : open circuit in NFC proportional reducing valve.

Error 2 : Aux/Hyd Controller NFC proportional reducing valve output is short -grounded.

Error 3 : Aux/Hyd Controller AC1 or AC2 output are short - grounded.(AC1 and AC2 are ON/OFF solenoids)

Error 4 : Aux/Hyd Controller HAM2 R1 or R2 outputs are short - grounded.

NOTE. The display of the Error-Codes has priority over the rest of the display codes,but does not affect the function of the Aux/Hyd Controller.

Several Error-Codes can appear at the same time, the Aux/Hyd Controllerwill display on the screen the last Error-Code detected.

The Error 1 and 2 can appear in both active or inactive modes.The error 2 and 4 appear only when the Aux/Hyd Controller is operating. As the Aux/HydController is continuously checking the NFC proportional reducing valve signal, theError 1 and 2 will disappear automatically when the problems are solved.

The Error 3 and 4 will disappear at the next Aux/Hyd Controller operation.If one or several Error-Codes are detected, start to fix the firs Error-Code displayed,then check if additional Error-Codes are displayed. The Aux/Hyd Controller canvisualize the errors only one at the time.

In case of Errors 1 and 2, the Aux/Hyd Controller will proceed as follows :

- Deactivation of AC1 and AC2 output signals.

- If for any reason the Activation Pressure SW Signal is "ON", the Aux/HydController will decrease the engine speed to Dial 1.

Error 5 : Aux/Hyd Controller detects malfunction of the Activation PressureSwitch . The pressure switch is located on the PTA port of the auxiliary

control valve. When ERROR 5 is displayed, maximum pressure is sentto the NFC port for minimum flow output.


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AUXILIARY/HYDRAULIC CONTROLLER

1 h X X X X

1 E X X L 1

1 F X X L 1

2 h X X X X

2 E X X H 1

2 F X X H 1

3 h X X X X

3 E X X L 2

3 F X X L 2

4 h X X X X

4 E X X H 2

4 F X X H 2

1 h X X X X

1 E X X H 1

WORKING MODE

1- Low Mode One Way

2- High Mode One Way

3- Low Mode Two Way

4- High Mode Two Way

SETTING

h- Hours of working Mode

E- Engine RPM of Working Mode

F- Flow of Working Mode

DISPLAY VALUE

OF WORKING CONDITIONS

- hours

- Eng. RPM

- Flow

L1 = Low Mode One Way

H1 = High Mode One Way

L2 = Low Mode Two Way

H2 = High Mode Two Way

WORKING MODE

COFIGURATION

PROGRAMMING

CHANNELS

SELECTION

DISPLAY WINDOW


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AUXILIARY/HYDRAULIC CONTROLLER

ACCESS TO PROGRAMMING MODE

ENTER KEY PLUS KEY MINUS KEYARROW KEY

To access the programming mode, press the keys as follow:

" ++", "-","+","--", Then press enter key

DISPLAY WINDOW

Exemple : Current active mode L 2, change flow parameters from 00 to35.Select first the flow parameters with "Arrow Key" then, press on "+ " or"-" key until you have reached 35

(Could be any other value)

To save the new parameters press "Enter Key" and then "+" Key, the last digit "P"will change from "P" to "S"(Saved)

To end the programming mode press "Enter Key" and then "Arrow Key'.

TO CHECK THE DIFFERENTS WORK MODE SETTING, PRESS "ARROW KEY",THE DISPLAY WILL SCROLLNOTE: To modify the engine speed and the flow parameters of another working mode,

the position of the One Way (Hammer) or Two way (Shear) Ball-Valve Leverand the Rocker Switch (tortoise or rabbit) must be selected. The position mustbe set to have the desire mode active, the controller authorizes to change onlythe parameters of the courrent active mode


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NFC Adjustment

TorquePiston

NFC Piston

Sleeve

PowerScrew

ControlSpring

Controlpiston

ActuatorSpring

Actuator

Max AngleAdjust.

PortPlate

Piston

RetainerPin

PilotPump

Pilot PumpDrive Gear

Barrel

300B MAIN HYDRAULIC PUMP(SECTIONAL VIEW)


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NFCAdjustment

Horsp.Adjus.

Max AngleAdjustment

To ControlValve

NFCPressure

ActuatorPiston

PSPressurefrom PRV

NFCAdjustment

Horsp.Adjus.

Max AngleAdjustment

To ControlValve

NFCPressure

PWMPress sensor

(Standby)

TWO PUMP CONTROLS


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(2 Pumps Flow)

TWO PUMP CONTROLS

NFCAdjustment

Horsp.Adjus.

Max AngleAdjustment

To ControlValve

NFCPressure

ActuatorPiston

PSPressurefrom PRV

NFCAdjustment

Horsp.Adjus.

Max AngleAdjustment

To ControlValve

NFCPressure

PWMPress sensor

300BAUX (Excavadora Hidraulica 300B)

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