Section II. REPAIR OF HELMET SIGHT ASSEMBLY

TM 9-1270-212-14&P

Section II. REPAIR OF HELMET SIGHT ASSEMBLY

5-7. Removal (fig.5-1).

c. Loosen the visor lock knob; rotate the visor 90

degrees and remove the visor and the two nylon gaskets

a. Hold the threaded pins with a hex key wrench; with a

from the helmet sight assembly.

visegrip or an equivalent wrench, remove the six pin collars

and washers that secure the back straps and sides of the

d. Position the visor lock at the top position and secure

helmet sight assembly to the SPH-4 helmet.

the lock.

e. Retain the visor and nylon gaskets for reinstallation.

b. Depress the back strap area and back out the two

threaded pins on the back straps with a hex key wrench.

Tag the helmet sight assembly with the size of the

Back out the remaining four threaded pins.

SPH-4 helmet from which it was removed.

Figure 5-1. Helmet sight assembly - removal and installation

5-3