TM 55-1520-240-23-9
11-33
NEUTRAL RIG CHECK
11-33
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Second Stage Rig Pin (T135)
First Stage Rig Pin (T44)
Protractor Assembly
Blade Angle Tool (T129)
Personnel Required:
Medium Helicopter Repairer (2)
Inspector
References:
Task 5-94
Task 5-114
Task 11-51
Task 11-54
Task 11-193
Task 11-210
Task 11-225
Equipment Condition:
Battery Connected (Task 1-39)
Electrical Power On
Hydraulic Power On
AFCS SYSTEM SEL Switch Set to OFF
Pilot’s and Copilot’s Seats Fully Aft
Servocylinder Safety Blocks Installed (T31) (Task
11-28)
Blade Lead-Lag Rigging Tool (T72) Installed (Task
11-30)
Pitch Link Positioned Over Forward Right
Servocylinder (Task 1-26)
Pilot’s and Copilot’s Cockpit Control Assemblies
Rigged (Task Step 6.)
Copilot’s Rigging Tool (T39) Installed (Task 11-22)
DASH Actuator Removed (Task 11-163)
DASH Actuator Dummy Link Installed (T42) (Task
11-26)
Closet Acoustic Blanket Removed (Task 2-107)
Closet Backup Panel Removed (Task 2-2)
Forward and Aft Work Platforms Open (Task 2-2)
Forward and Aft Fairings Open (Task 2-2)
Forward and Aft LCT Actuators Fully Retracted (TM
55-1520-240-T)
Rotary-Wing Blade Tie Down Lines installed (Task
1-26)
Forward and Aft Rotor Shaft Covers Removed (Task
5-8)
11-109
