Inspection Of Installed Itemsrepair

1. GENERAL.

a. Inspect the latch mechanism by moving it. The lock handle and helical torsion spring should move as a unit with no relative movement between them. Ensure all parts are lightly lubricated with no binding. Do not remove components unless parts replacement is necessary.

2. NEW COMPONENTS REQUIRING REPLACEMENT AS A UNIT.

a. If cover lock (1) is replaced, also install new headless grooved pin (2), lock pin (3), headless grooved pin (4), and lock handle (5). The cover lock and lock pin must be drilled as a unit when installed as new items. The lock handle must also be drilled when installed as a new item.

b. Headless grooved pin (2) may be replaced by itself.

c. Headless grooved pin (4) may be replaced by itself.

The cover lock and lock shoulder pin must be drilled as a unit when installed as new items. When installing the new cover lock, do not forget to install a new headless grooved pin, lock shoulder pin, headless grooved pin, and lock handle. The lock handle must also be drilled when installed as a new item.

a. Enlarge the pilot holes in the cover lock and lock shoulder pin.

(1) Clamp assembled cover lock and lock shoulder pin in a vise with soft jaws and align predrilled holes in the cover lock (1) and lock shoulder pin (2).

(2) Using the 3/32 inch drill bit and drill press, enlarge the holes (6 and 7) as shown.

3. INSTALLING A NEW COVER LOCK, LOCK SHOULDER PIN, AND LOCK HANDLE.

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