Section II. ORGANIZATIONAL MAINTENANCE

checks and corrective measures (a, b, and c below). If the trouble

is not corrected by these corrective measures, higher echelon

repair is required.

a. If the front shelf (PH-637/PFP, PH-637B/PFP, and PH-

637C/PFP) does not stay open, raise it until it snaps into the

locked position. If the left-hand shelf (PH-637/PFP or PH-

637A/PFP) does not stay in position, raise it, and manually pull

out the shelf support.

b. If the female power cable connector does not fit the power

cable receptacle on the front of the projector housing (on PH/

637/PFP and PH-637A/PFP), check the power cable receptacle.

Straighten bent prongs.

c. If the blower motor operates, and the projection lamp does

not light, open the rear and lamp house doors (figs. 7.1 and 24),

and check the projection lamp for secure mounting in its socket.

If the lamp is securely mounted in its socket, replace the lamp.

Section II. ORGANIZATIONAL MAINTENANCE

43. Scope of Organizational Maintenance

a. This section contains instructions covering second echelon

maintenance of Projector PH-637 (*) /PFP. It includes instruc-

tions for performing preventive and periodic maintenance serv-

ices and repair functions to be accomplished by the organizational

repairman.

b. Second echelon maintenance of Projector PH-637 (*)/PFP

includes:

(1) Preventive Maintenance (par. 46 and 47).

(2) Lubrication (par. 47.1).

(3) Troubleshooting (pars. 47.2 and 47.3).

44. Tools, Materials, and Test Equipment Required

a. Tools. Tool Kit, Photographic Repair TK-77/GF.

b. Materials.

(1) Cleaning compound, FSN 7930-395-9542.

(2) Lubricating Oil, General Purpose (LO) (FSN 9150-

252-6173).

(3) Lubricating oil, general purpose : preservative (PL-

special), (FSN 9150-273-2389).

c. Test Equipment. Multimeter AN/URM-105.

TAG0 5909B