Robinson R66 - Page 335

APR 2019 Chapter 25 Furnishings Page 25.19
25-73 Cargo Hook (continued)
C. Installation (continued)
CAUTION
The cargo hook must be able to swing freely in all directions.
Incorrect restraining of the mechanical release control cable
could cause uncommanded cargo hook release if hook were to
strain against cable’s inner wire.
8. Maneuver cargo hook and verify wire harness and control cable have sufficient
slack through full range of travel.
9. Refer to Figure 25-3. Push-in (10 amp) HOOK RELEASE and (10 amp) EXT LOAD
(if installed) circuit breaker(s) on circuit breaker panel. Turn battery switch on.
Verify proper function of electrical release. Reset load beam by hand. Verify lock
indicator returns to locked position. Turn battery switch off.
10. Verify proper function of mechanical release control. Reset load beam by hand.
Verify lock indicator returns to locked position.
D. Scheduled Inspections
NOTE
Track time of external load operations when anything is attached
to the cargo hook and the helicopter is flying.
Every 100 hours of external load operations or annually, whichever occurs first:
1. Push-in (10 amp) HOOK RELEASE and (10 amp) EXT LOAD (if installed) circuit
breaker(s) on circuit breaker panel. Turn battery switch on. Refer to Figure 25-
3. Verify proper function of electrical hook release. Reset load beam by hand.
Verify lock indicator returns to locked position. Turn battery switch off.
2. Verify proper function of mechanical release control. Reset load beam by hand.
Verify lock indicator returns to locked position.
3. Maneuver cargo hook and verify wire harness and control cable have sufficient
slack through full range of travel.
4. Verify proper routing and security of mechanical release control cable; verify
smooth actuation without binding.
5. Remove screws securing (mechanical release) cover to 528-029-00 cargo hook
and remove cover. Refer to Figure 25-4. Rotate release lever clockwise to
remove free play (lock indicator will begin to move) and measure gap between
fork and ball as shown. Adjust gap per § 25-75 as required to obtain measurement
between 0.15–0.25 inch.
6. Inspect condition of cargo hook equipment for damage. Verify equipment security.