TM 55-1520-240-23-9
11-30
INSTALL ROTARY-WING BLADE LEAD/LAG TOOL
11-30
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Lead/Lag Tool (T72) (6)
Strap Wrench
Workstand
Materials:
None
Personnel Required:
Medium Helicopter Repairer (3)
Inspector
Equipment Condition:
Battery Connected (Task 1-39)
Electrical Power On
Hydraulic Power On
Forward and Aft Work Platforms Open (Task 2-2)
Forward Tunnel Access Door Open (Task 2-2)
Rotary-Wing Blade Tie Downs 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) at about
center of absorber (8) travel.
4.
Position upper clamp (9) with arm (10) outward
on absorber (8).
5.
Position lower clamp (11) on lower side of
absorber (8) to inward end of clamp (9). Install
two pins (12) in clamps (9 and 11).
6.
Release wrench (6).
7.
Repeat steps 1 thru 6 for forward blades (13 and
14).
11-99
