Hi,

Reach truck model mentioned in subject.

Is there any plausible explanation if when we're retracting the reach of the forks at a height and the forks suddenly jerk 5-7 inches upwards?

Received this complaint from an operator.

I couldn't come up with any logical explanation for this technical wise.
Rather I don't even believe anything as such can happen unless the operator accidentally operates the multipilot's function to move the forks upwards.

Feedback from technical experts will be appreciated.
Thanks.