PROMD 1 TO 3mm GAP gen.

[adelaida]

Прошу помочь разобраться с опечаткой (?)

SUPERBOLT TIGHTENING SEQUENCE
..
STEP 4.
AT 133Nm OF TORQUE.
TIGHTEN ALL JACKBOLTS IN A CIRCULAR PATTERN
DO THIS FOR ALL SUPERBOLTS (1 ROUND ONLY).
STEP 5.
REPEAT "STEP 4" UNTIL ALL JACKBOLTS ARE “STABILIZED” (LESS THAN 10” ROTATION).
THIS USUALLY REQUIRES 2-4 ADDITIONAL PASSES IF USING AIR/TOOLS, SWITCH TO A TORQUE WRENCH WHEN SOCKET ROTATION IS SMALL.
USE THE TORQUE WRENCH TO STABILIZE AT THE TARGET TORQUE.
HELPFUL HINT BACK THE TENSIONER OFF BEFORE TIGHTENING TO PROMD 1 TO 3mm GAP.

Не могу понять окончание:
PROMD 1 TO 3mm GAP.
Что это может быть?

Спасибо.

[AsIs]

PROVIDE 1-3 mm

[adelaida]

СПАСИБО!