INSTALL LEADS IN EXACT POSITION SHOWN

CHECKING THE RECTIFIER ASSEMBLY 120 VAC STARTER MOTOR

GEAR DRIVE STARTERS

TM-5-4240-501-14P Special Diver Air Support System (SDASS) NSN 4220-01-292-3708 Manual
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TM 5-4240-501-14&P STARTERS Gear Drive 12V & 120V Fig. 78 - Assembling Armature to End cap If 120 volt motor, connect rectifier to end cap as shown in Fig. 79 with 1/4" nut driver. INSTALL LEADS IN EXACT POSITION SHOWN. Fig. 79 - Installing Rectifier Assembly Support armature shaft and slide it slowly into housing, as shown in Fig. 80. Insert rubber mounted terminal into housing at this time. Fig. 80 - Inserting Armature Place thrust washer on motor PTO shaft. Install end head and thru bolts. Align end cap and end head match marks correctly. Fig. 74. Tighten screws. Tap edge of end cap using a soft hammer to align motor bearings if required. Fig. 81. Check armature shaft for end play. Armature should rotate freely. NOTE: 120 VOLT MOTORS HAVE TWO POSSIBLE HOUSING POSITIONS. INTERFERENCE MAY RESULT IF CORRECT POSITION IS NOT USED. FIG. 74. Fig. 81 - Aligning Bearings Test performance of starter motor. Page 19 or 20. If starter motor tests as specified, continue assembly. HI-POTENTIAL TEST (HI-POT) WARNING: A Hi-Potential Test of the 120 Volt AC starter motor must be conducted prior to installation of starter motor to engine. DANGER: High voltage is used in this test. Exercise extreme care to minimize the hazard of electrical shock. If test equipment is not available, take starter motor to a local electrical motor repair shop for test. Failure to perform this test may present an electrical hazard. If starter motor tests are positive, continue assembly. 22

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