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Page Title:
Manual control cable and handle subassemblies life cycle |
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|  MIL-R-8236F
3.5.6.3 Manual control cable and handle subassemblies life cycle. The manual control mechanism, consisting
of the manual control handle subassembly and manual control cable subassembly, shall withstand 25,000 cycles of
positioning the control handle from the "manual-lock" to "auto-lock" and back to "manual-lock" without
performance degradation below the performance levels specified (see 4.5.6.3).
3.5.7 Design static strength.
3.5.7.1 Design static strength of inertia reels. Inertia reels, including the inertia reel housing subassemblies
and mounting provisions, and the webbing lead-in strap subassemblies, including the terminal end fitting, as
applicable, shall withstand a design static load (see 6.4.5) for a period of 60 seconds without any structural or
mechanical failure which would impair the seat/occupant restraint capability. Inertia reds having more than one
locking mechanism shall meet the design static strength requirements for each locking mechanism (see 4.5.7.1).
3.5.7.1.1 Design static strength of MA-1, MA-2, and MA-6 type inertia reels. These types of inertia reels
shall withstand a design static load of 4,000 pounds (see 4.5.7.1.1).
3.5.7.1.2 Design static strength of MA-8, MA-14, and MA-16 type inertia reels. These types of inertia reels
shall withstand a design static load of 5,000 pounds (see 4.5.7.1.2).
3.5.7.2 Design static strength of webbing. The webbing, excluding its terminal end fitting and attachment
fitting, when grasped at each end. shall be capable of withstanding a design static load of 8,000 pounds for 60
seconds without failure (see 4.5.7.2).
3.5.8 Dynamic crash loads. In all specified mounting orientations shown in Figure 17, the inertia reel,
including its cable/webbing, shall be capable of withstanding survivable crash loads. Application of the crash
loads shall cause the locking mechanism to lock as specified (see 4.5.8).
3.6 Lubrication. Unless otherwise specified, lubrication shall be in accordance with MIL-HDBK-275.
3.7 Identification of product. Identification marking shall be in accordance with MIL-STD-130. The inertia
reel housing subassembly shall have a permanently attached nameplate which shall contain the following
information:
REEL, SHOULDER HARNESS INERTIA LOCK
Type (see 6.2)
Specification MIL-R-8236F
National Stock No.
Manufacturer's Part No.
Manufacturer's Serial No.
Contract or Order No.
Manufacturer's name/trade mark and CAGE
U.S.
3.7.1 Permanent identification of inertia reel. The housing of the inertia reel shall be stamp imprinted with
the serial number and date of manufacture to coincide with the serial number of the permanently attached
nameplate.
3.7.2 Anti-Tampering seal. Anti-tampering seals shall be affixed to primary unit entry points. The
anti-tampering seals shall remain their integrity throughout the life of the product.
3.8 Workmanship. The inertia reel assembly and subassemblies, including all detail parts, shall be fabricated
and finished to produce an item free from defects which could affect proper functioning of the complete unit in
service.
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