SF GAS FR:
SF is almost linear as far as we checked.
However, the stepper motor should have moved about 20.0 mm, but K1:VIS-PR2_SF_LVDTINF_GAS_OUTPUT was about 4.6 mm, and
K1:VIS-PR2_BF_DAMP_V_INMON moved about 2.4 mm.

BF GAS FR:
The linear range was -5mm to +11.7mm. Also, below about -5mm, the advance reversed and there was abnormal movement.
Also, from +11.7mm and above, the tilt became gentle.
The stepper motor should have moved about 16.7mm, but the K1:VIS-PR2_BF_LVDTINF_GAS_OUTPUT moved about 9.4mm.

JGW-E2112492

Burt: