TM 55-1520-240-23-9
11-31
REMOVE ROTARY-WING BLADE LEAD/LAG TOOL
11-31
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Strap Wrench
Workstand
Materials:
None
Personnel Required:
Medium Helicopter Repairer (3)
Equipment Condition:
Forward and Aft Work Platforms Open Task 2-2)
Forward Tunnel Access Door Open (Task 2-2)
Rotary-Wing Blade Tiedowns Installed (Task 1-26)
Keep objects and personnel away
from rotary-wing blades when blades
are being turned. Blades may swing
unexpectedly and can cause injury to
personnel or damage to components.
1.
Have helper turn forward rotor head (1) until
rotary-wing blade (2) is over tunnel (3). Use
tiedown.
2.
Working from forward tunnel access (4), have
helper hold drive shaft (5). Use strap wrench (6)
positioned close to coupling (7).
3.
Have helper move and hold blade (2) until
lead/lag tool (T72) (8) on shock absorber (9) is
loose.
4.
Support tool (8). Remove two pins (10) from tool
and remove lower clamp (11). Lift and remove
tool from absorber (9).
5.
Release wrench (6).
6.
Repeat steps 1 thru 5 for forward blades (12 and
13).
11-101
