OMAL161979: 6020, 6120, 6220, 6320, 6420 and 6420S Tractors(398791- ), Block File: OULXE59_001069C_19

Headland Management System HMS II - Details

Basic controls

On/off switch (A):

When this switch is actuated, an acoustic signal is emitted.

If this switch is actuated while the HMS II mode is on, it turns the HMS II mode off.
Actuating this switch does not activate the HMS II mode unless program switch (C) is in its neutral position.
If this switch is actuated while a program is being recorded, the recording of the program is interrupted and the program does not get stored in the memory.
If this switch is actuated while a program is being performed, the program stops.

Record/save switch (B):

When this switch is actuated, an acoustic signal is emitted.

If this switch is actuated while the HMS II mode is off, it has no effect.
If this switch is actuated while the HMS II mode is on, it starts to record a program.
If this switch is actuated while a program is being recorded, the relevant program (1 or 2) is stored in the memory.

A-HMS II on/off switch
B-Record/save switch
C-Program switch
D-HMS II indicator light
E-Program 1 indicator light
F-Program 2 indicator light
G-Location of program switch on tractors without Command Arm

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Program switch (C):

If this switch is actuated while the HMS II mode is off, it has no effect.
If this switch is actuated while the HMS II mode is on, the relevant program (1 or 2) will start.
If this switch is actuated while a program is being recorded, the following functions are allocated to the relevant program.

Functions that can be recorded

Differential lock:

The "on"/"off" status is recorded.

Front-wheel drive:

The status "brake assist (off)", "on" and "auto" is recorded.

NOTE: If HMS II is to perform a program that includes a front-wheel drive function, the FWD switch must be either in the "on" position or the "Auto" position. If HMS II switches FWD off, the FWD indicator light will flash "slowly" (on briefly, off for longer) until HMS II switches FWD on again or until the FWD switch is moved to its "off" position. In the event of HMS II being switched off during the period of slow flashing, the FWD indicator light changes to "rapid" flashing (on/off for the same length of time) until the FWD switch is moved to its "off" position.

Rear PTO:

The "on"/"off" status is recorded.

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NOTE: If HMS II is to perform a program that includes a PTO function, the PTO switch must be in its "on" position. If HMS II switches the PTO off, the PTO indicator light will flash "slowly" (on briefly, off for longer) until HMS II switches PTO on again or until the PTO switch is moved to its "off" position. In the event of HMS II being switched off during the period of slow flashing, the PTO indicator light changes to "rapid" flashing (on/off for the same length of time) until the PTO switch is moved to its "off" position.

Front PTO:

The "on"/"off" status is recorded.

Rockshaft:

The "raise", "lower" and "quick lower" functions are recorded.

NOTE: If HMS II is to perform a program that includes a rockshaft function, the rockshaft control switch must be in its neutral position.

Selective control valves:

The "extend", "retract", "float" and "neutral" functions are recorded (on tractors with Command Arm only).

NOTE: If HMS II is to perform a program that includes an SCV function, the control lever of the relevant SCV must be in its neutral position.

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Recording a program

NOTE: To enable the recording of PTO or rockshaft functions, the tractor must be driven at a speed of at least 0.5 km/h (0.31 mph). Recording may be interrupted if the tractor's speed momentarily drops below 0.5 km/h (0.31 mph). If this interruption lasts more than 60 seconds, the recording will be abandoned.

Functions "front PTO on", "rear PTO on" and "lower rockshaft" can be recorded only when the tractor is moving in forward direction.

1. Pressing on/off switch (A) makes HMS II indicator light (D) come on.

2. Pressing record/save switch (B) makes light (D) flash and an acoustic signal is emitted every 2 seconds.

3. Set program switch (C) to "1" or "2". Program indicator light (E) or (F) flashes.

4. Perform the desired functions with the tractor.

5. When finished, press record/save switch (B) again. The sequence of functions has been recorded and is now stored as a program. The program indicator light goes out; the HMS II indicator light remains on continuously (no flashing).

Stopping a recording

The following actions have the effect of stopping a recording before it is completed:

1. Actuating the HMS II on/off switch.

2. Not selecting a program within 60 seconds.

3. Not performing a function within 60 seconds.

4. Not actuating the record/save save switch within 60 seconds of performing the first function.

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5. Switching on a PTO when the transmission is not in a forward gear.

6. Lowering the rockshaft when the transmission is not in a forward gear.

7. No operator on the seat and the tractor not moving for more than 5 seconds.

8. A fault being detected at the program switch.

Displaying the stored programs

When HMS II is selected, all the functions included in the two programs are displayed one after the other, each appearing for 2 seconds.

This display will reappear if the operator leaves his seat for more than 30 seconds while HMS II is active.

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Dot matrix display	LCD screen	Meaning

Text "SEQUENCE I"	SE-1	Program 1
Text "SEQUENCE II"	SE-2	Program 2
Differential lock symbol	dLon	Differential lock on
Differential lock symbol scored through	dLoF	Differential lock off
Front-wheel drive symbol	Fdon	Front-wheel drive on
Front-wheel drive symbol scored through	FdoF	Front-wheel drive off
Rear PTO symbol	Pton	Rear PTO on
Rear PTO symbol scored through	PtoF	Rear PTO off
Front PTO symbol	FPto	Front PTO on
Front PTO symbol scored through	FPoF	Front PTO off
Rockshaft symbol + "up" arrow	HUP	Rockshaft rises
Rockshaft symbol + "down" arrow	Hdn	Rockshaft lowers
Tractor symbol (rear) + SCV cylinder symbol + "up" arrow + number	EtdX	SCV X (1-4) extends
Tractor symbol (rear) + SCV cylinder symbol + number + "down" arrow	rEtX	SCV X (1-4) retracts
Tractor symbol (rear) + SCV cylinder symbol + number + ~	FLtX	SCV X (1-4) in float
Tractor symbol (rear) + SCV cylinder symbol + number scored through	CAnX	SCV X (1-4) in neutral
SCV cylinder symbol + tractor symbol (front) + number + "up" arrow	EtdX	Front SCV X (6-8) extends
SCV cylinder symbol + tractor symbol (front) + number + "down" arrow	rEtX	Front SCV X (6-8) retracts
SCV cylinder symbol + tractor symbol (front) + number + ~	FLtX	Front SCV X (6-8) in float
SCV cylinder symbol + tractor symbol (front) + number scored through	CAnX	Front SCV X (6-8) in neutral
End	End	Program completed

Performing the stored programs

NOTE: To enable the recorded programs to be performed, the tractor must be driven at a speed of at least 0.5 km/h (0.31 mph).

Before programs are performed that include front-wheel drive and/or PTO functions, front-wheel drive and/or the PTO(s) must be switched on. HMS II cannot physically "turn on" the relevant switches.

Before programs are performed that include rockshaft and/or SCV functions, the relevant levers/switches must be in their neutral positions.

1. Pressing on/off switch (A) makes HMS II indicator light (D) come on.

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2. To select the desired program, press program switch (C) or (G) to "1" or "2". Program indicator light (E) or (F) will come on. This light goes out once the program has been completed.

Faults in the functions

If a fault occurs in a function that is included in the program, then the following applies:

If the fault occurred before the program was started, the entire program will not run.
If the fault occurs during the course of the program, then the function in question will be ignored. The other functions are performed in their normal sequence.

Manual intervention while a program is running

If one of the stored functions is activated manually while the program is running, this function will be ignored for the rest of the program. The function will not be deleted from the program. The other functions are performed in their normal sequence.

Stopping a program while it is still running

The following actions have the effect of stopping a program while it is still running:

1. Selecting the other program at the program switch.

2. Pressing the on/off switch.

3. Pressing the record/save switch.

4. It taking longer than 60 seconds for the program to be completed.

5. The requirement to switch on a PTO when the transmission is not in a forward gear.

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6. The requirement to lower the rockshaft when the transmission is not in a forward gear

7. The operator leaving his seat and the tractor not moving for more than 5 seconds.

8. The rockshaft or a selective control valve not performing the desired function.

9. A fault being detected at the program switch.

If a program is stopped while it is running and functions have already been performed, then HMS II reacts as follows:

The differential lock is disengaged.
The status of front-wheel drive remains unchanged.
All the PTOs are switched off.
Rockshaft movement is stopped.
The flow of oil to the SCVs is stopped.

Deleting the stored programs

1. Pressing the on/off switch makes the HMS II indicator light come on.

2. Pressing the record/save switch makes the HMS II light flash and an acoustic signal is emitted every 2 seconds.

3. To select the program to be deleted, set the program switch to "1" or "2". The program indicator light starts to flash.

4. Do not perform any functions with the tractor.

5. When finished, press record/save switch (B) again. The selected program is now deleted. The program indicator light goes out; the HMS II indicator light remains on continuously (no flashing).

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