TM 1-1520-238-23
Change 5
5-19
5.3.
MAIN ROTOR BLADE REMOVAL
5.3.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
5.3.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
Sling set kit (item 194, App H)
Materials/Parts:
Cloth (item 52, App F)
Corrosion preventive compound (item 63, App F)
Cotton gloves (item 82, App F)
Personnel Required:
67R
Attack Helicopter Repairer
Two persons to assist
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
1.97
Maintenance crane installed
1.100
Crane adjustment-main rotor blade
1.106
Main rotor blade tiedown installed
1.112
Main rotor blade adapter installed
1.83
Droop stop wedges installed
WARNING
FLIGHT SAFETY PART
The main rotor blade is a flight safety
part. Failure to follow maintenance
instructions may result in serious
injury or death of crewmembers
and/or serious damage to the
helicopter.
CAUTION
Main rotor blades are individually cali-
brated to de-icing system controller.
When removing main rotor blades, re-
cord blade serial number and power dis-
tributor connector number to ensure
installation at same position. Incorrect
de-ice system adjustment will cause
damage to heater elements.
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