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Valtra 6550 - Page 466

Valtra 6550
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Picture 12. PTO control
425
Model Code Page
35. Autocontrol IV
15. 5. 1996
6600E
8100E-- 8750E
351 7
1. 1. 1994
D. PTO ( ---F17106)
--- Ensure that the PTO emergency plug is placed in the rear
socket.
--- Start the engine.
--- Set the display to show the PTO shaft revs.
--- Move the PTO lever to the front position (540 r/min), at
which time the ind. light starts to flash.
--- Move the lever knob switch to the front position and the
PTO shaft starts to rotate and the ind. light lights contin-
ually. Move the switch to the rear position and the PTO
shaft must stop and. ind. light goes out.
--- Move the lever to the middle position.
--- Engage PTO 540 r/min (shaft rotates). Switch off current
with the ignition switch. Restart the engine
--- PTO ind light must flash and the PTO shaft must not rotate.
Move the lever to the middle position and back to the front
position at which time the PTO shaft starts to rotate and the
ind. light lights continuously.
--- Remove the emergency plug and the shaft stops rotating
and the ind. light starts to flash. Refit the plug. The PTO
shaft must not rotate. Ind. light flashes.
--- Move the lever to the middle position and back to the front
position. The shaft must not rotate.
--- Stop the engine and switch off the current. Restart the
engine. The ind. light still flashes. Move the lever to the
middle position and back to the front position and the shaft
starts to rotate and the ind. light lights up.
Note! If the PTO clutch slips too much, the AC IV disen-
gages the PTO. The PTO restarts after the current is
switched off and then on with the ignition switch. This PTO
automatics can be overridden by making a connection in
the lever console, see page 350/9.
When the PTO solenoid is energised, the nut at the end of
the solenoid is magnetic. This can be verified with e.g. a
screwdriver. The solenoid is energised when the PTO is
on.
E. Slip control
Same as on Autocontrol III, see page 341/6 instr. E.
Setting the slip limit percent, see Autocontrol III on page
341/6.
F. Cold starting automatics
The same as on Autocontrol III, see page 341/6 instr. F.
Picture 13. Cold starting

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