New Holland T4.75F Operator's Manual page 120

Lower arms up/down control knob
The up/down movement of the arms is controlled by knob
(1). Turn the knob clockwise to raise the arms or anti-
clockwise to lower them.
To the left of the knob (1) there is an indicator light:
• indicator (2) indicates that the lift is momentarily dis-
abled, i.e.: the position of the knob (1) does not corre-
spond to the position of the arms, therefore the imple-
ment may neither be raised nor lowered. The external
controls can be used to vary the position of the imple-
ment.
Fast raise/lower switch
To raise and lower the implement, use the switch (2),
which has three positions:
• UP position (A)
• Work position (B)
• Fast ground entry position (C).
Use the position (C) at the headland to increase the im-
plement ground entry speed; when released the switch
automatically returns to the work position (B).
Lift arms reset procedure
To set the knob back in phase with the arms, check that
the fast up/down switch (2) fig. 3 is in position (B). Turn
the knob (1) fig. 2 completely clockwise (lifting), then turn
it slowly anticlockwise (lowering) until the indicator light
(2) goes out; now the movements of the knob (1) will be
in phase with the movements of the lower arms.
External controls
Up/down pushbuttons
The external lift controls (1) are located at the rear of the
tractor on both sides next to the tail lights. To enable the
controls, press the control buttons (1) into either position.
Switch to position (A) to raise, and position (B) to lower.
When using the external controls for the hydraulic lift,
all the central unit controls located in the cab are auto-
matically disabled. To re-enable these it is necessary to
perform the operations described under the heading "Lift
arms reset procedure".
6 - WORKING OPERATIONS
6-22
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