During regular operation y released the triger and after that it does not return with power

since there are numerous ways a truck of this size and weight can experience poor returnability of the steering, i suggest system prechecks be performed first. tire pressure. p/s fluid level, belt intact. lubrication service gets regular attention? customer is not braking during attempt to steer. since turns like you describe happen at idle,
like parking maneuvers, i suggest releasing the brake.
the designed caster value engineered into the front axle creates the resitance to turn left or right. the returnability happens by those angles creating preload for the steering parts to return when relaxed. if the driver applies and holds the brake, the brake rotor is not allowed to slip thru the brake pads during low speed returnability.
once prechecks and road test proves concern is still verified, one can only suspect a restriction or blockage exists. inspect all the parts.
is something in contact with the lower steering shaft? hood open, inspect steering shaft that drives the steering gear input. is there contact with something under the hood? next theres a hydraulic restriction test. observe the fluid in the reservoir of the pump while recreating the problem. can you see it swirl or move in the reservoir? if there was a blockage in the return circuit there would be no perceptible movement in the fluid. is the fluid reddish pink? should be, ford specified fluid is type F. maintaining it requires flushing. if its black, that indicates excessive wear. or contaminates.
the bolts that hold the crossmembers and axles should be the next thing to inspect. brackets and braces for the support of the front axles have been known to wear loose and require attention. if they are progressively allowing the front end to sag, you would be able to see it as negative camber. have someone steer it while you observe the parts. any looseness or objectionable movement? mud, rocks obstructing the steering knuckles? visible damage ? bent linkage?
this is something the ford dealer can inspect for you in a few minutes
in the event you need a trained experienced eye!

1) Close the print head cover, and turn off the printer. While pressing the Resume/Cancel button, press the Power button. (Do not release the buttons. The LED lights in green to indicate that a function is selectable.)

2) While holding the Power button, release the Resume/Cancel button. (Do not release the Power button.)

3) While holding the Power button, press the Resume/Cancel button three times, and then release the Power and Resume/Cancel buttons. (Each time the Resume/Cancel button is pressed, the LED lights alternately in either orange or green, starting with orange.) During initialization, the LED blinks in green.

4) When the LED stops blinking and lights in green, press the Resume/Cancel button the 4 times. (Each time the Resume/Cancel button is pressed, the LED lights alternately in either orange or green, starting with orange.)

5) Press the Power button. The LED lights in green, and the
selected function is performed. (When the operation completes, the printer returns to the menu selection mode automatically.)

6) Power off then back on and test.

adjust throttle at carb try riching it up tiny bit

1) Close the print head cover, and turn off the printer. While pressing the Resume/Cancel button, press the Power button. Do not release the buttons.
2) While holding the Power button, release the Resume/Cancel button. Do not release the Power button.
3) While holding the Power button, press the Resume/Cancel button 3 times, and then release the Power and Resume/Cancel buttons. Each time the Resume/Cancel button is pressed, the LED lights alternately in either orange or green, starting with orange. During initialization, the LED blinks in green.
4) When the LED stops blinking and lights in green, press the Resume/Cancel button 4 times. After the function is selected, press the Power button. The LED lights in green, and the selected function is performed. When the operation completes, the printer returns to the menu selection mode automatically.

I would say you have a loose wire in the harness. Check all the wires in that circuit.

the fault is the triger return spring,,,,,,,get it looked at,,,,,
by a gun smith,,,faulty triger are dangerous,,and killers too?

the triger has a small ball bearing and a spring in it,,,strip out the triger
dont loose the bits and clean then grease it using water proof grease so its free to slide then the jobs a good un? get yourself a drink and go back to power washing ,,but this time it stops when you tell it to?

Hi

Try this to reset the error.

1) Close the print head cover, and turn off the printer. While pressing the Resume/Cancel button, press the Power button. (Do not release the buttons. The LED lights in green to indicate that a function is selectable.)

2) While holding the Power button, release the Resume/Cancel button. (Do not release the Power button.)

3) While holding the Power button, press the Resume/Cancel button three times, and then release the Power and Resume/Cancel buttons. (Each time the Resume/Cancel button is pressed, the LED lights alternately in either orange or green, starting with orange.) During initialization, the LED blinks in green.

4) When the LED stops blinking and lights in green, press the Resume/Cancel button the 4 times. (Each time the Resume/Cancel button is pressed, the LED lights alternately in either orange or green, starting with orange.)

5) Press the Power button. The LED lights in green, and the
selected function is performed. (When the operation completes, the printer returns to the menu selection mode automatically.)

6) Power off then back on and test.

Your catylatic converter may be clogged if your loosing power or top speed is less than it was. You can check this when its running with a battery operated infared heat gauge. the temperature of the muffler should be around the same temp. as the catylatic converter.

if the nailer is for 18 guage nail use 18 gauge nail if not 16 guage will jam. if it is not the problem is the profile return asyy may jam in side.