MWO-9-2330-390-25-1
MODIFICATION WORK ORDER
MODIFICATION OF M1022A1 DOLLY SET; POSITIONING TUBE REINFORCEMENT
DECEMBER 2006
CHANGE 1
MWO-9-2330-390-25-1 - Page 28 of 54
MWO 9-2330-390-25-1
A-7
APPENDIX A:
LOWERING DOLLY SET WITH OR WITHOUT SHELTER
AND DETACHING FRONT AND REAR DOLLIES (Con’t).
WARNING
•
Use extreme caution when removing twist locks.
Keep hands and/or feet clear of
top hooks, top and bottom beams, and from between beams and shelter.
Failure
to follow this warning may cause serious injury to personnel.
•
Use extreme caution when loosening and removing twist locks.
Loosened twist
locks at top beam MUST be removed or they may fall, causing serious injury to
personnel.
•
Use extreme caution when using ladder.
Have an assistant hold ladder to ensure
that it is stable.
Failure to follow this warning may cause serious injury to
personnel.
NOTE
•
If there is difficulty loosening twist lock nut or twist locks do not come out, it may
be necessary to operate hydraulic control valve to slightly retract or extend each
lift cylinder.
•
If detaching dolly halves from each other, perform step l.
Skip remaining steps in
task.
•
If detaching dolly halves from shelter, skip step n and perform steps o through s.
n. At front and rear, remove safety pins (66).
Use twist lock wrench (table 9a) to loosen
nuts (67) at top beams (1).
Rotate twist locks (68) 90
°
and remove from top beams.
Repeat to remove from bottom beams (3).
Stow twist locks in toolbox (69) on front dolly.
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