Page 25.18 Chapter 25 Furnishings APR 2019
25-73 Cargo Hook
A. Schematic
Refer to Figure 98-29 for cargo hook wiring schematic.
B. Removal
1. Turn battery switch off and pull out (10 amp) HOOK RELEASE and (10 amp) EXT
LOAD (if installed) circuit breaker(s) on circuit breaker panel.
2. Disconnect G140-6 (installations without load cell) or G140-7 (installations with
load cell) harness assembly from 528-029-00 cargo hook at hook connectors.
3. Remove cotter pin, castellated nut, washers, and bolt (G132-1) or load cell (G132-
2 or G132-4) securing hook to hard point’s D136-2 support. Remove hook.
4. Remove screws securing (mechanical release) cover to hook and remove cover.
Disconnect D676-3 (control) cable assembly’s ball from mechanical release’s fork.
5. Loosen jam nut and unthread hook from cable assembly.
6. Configure helicopter for flight with hook removed per Part F as required.
C. Installation
1. Turn battery switch off and pull out (10 amp) HOOK RELEASE and (10 amp) EXT
LOAD (if installed) circuit breaker(s) on circuit breaker panel.
2. Configure helicopter for flight with hook installed per Part F as required.
3. Loosen jam nut and thread 528-029-00 cargo hook onto D676-3 cable assembly.
Verify threads protrude beyond plate flange.
4. Insert bolt and washer (G132-1) or load cell (G132-2 or G132-4) securing hook
to hard point’s D136-2 support. Install washers and castellated nut, and tighten
nut finger tight (back off as required to align cotter pin holes, but do not install
cotter pin). Verify security.
CAUTION
Overtightening castellated nut can damage load cell.
5. Rig mechanical release control per § 25-75.
6. Install cotter pin at hook-to-hard point fastener.
7. Connect G140-6 (installations without load cell) or G140-7 (installations with
load cell) harness assembly to hook at hook connectors. Verify security.
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