.
Coil springs . Check coil springs for alignment of coils by rolling spring across a smooth, flat
surface and observing misalignment or distortion of coils.
. Check for cracks, deformation, and elongation.
.
Welded and riveted parts . Visually check all welded and riveted parts for security of weld and rivets.
.
Flexible couplings . Visually check for physical damage that would impair function. . Inspect swaged assemblies for flange appearance. A raised impression of the
holding block split line may be visible. If the impression is 0.002 inch (0,0508 mm) or less, the assembly is acceptable. . Using a straight edge, check flatness of the flange face. Out of flatness beyond
0.010 inch (0,254 mm) is not acceptable.
. The tube shall be free of nicks and scratches, except there will be slight traces of the circular flange groove pattern in the ID of the tube in the swaged area as well as traces along the tube axis indicating the last point of advance of the expander roll.
. Perform pressure test in accordance with applicable manual.
Inspection
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H. Electrical Component Inspection
CAUTION: REFER TO APPLICABLE MANUAL PRIOR TO PERFORMING ANY ELECTRICAL CHECKS TO ENSURE THAT CHECKS WILL NOT DAMAGE EQUIPMENT.
(1)
Check continuity of circuits.
(a) Check continuity of wiring from termination point to termination point in accordance with applicable manual.
(2)
Check dielectric strength of electrical solenoids.
CAUTION: REFER TO APPLICABLE MANUAL TO ENSURE THAT CONNECTOR BEING CHECKED DOES NOT HAVE AN INTERNALLY GROUNDED PIN.
(a)
Connect all non-grounded pins (refer to CAUTION) of connector together electrically, then connect to one side of a 750 volt ac power source. Connect other side of power source to case of connector.
(b)
Apply 750 volts ac (rms) for one minute. There must be no evidence of arcing or sparking and current drain should not exceed 2.0 milliamperes.
(3) Check insulation resistance of electrical solenoids.
CAUTION: REFER TO APPLICABLE MANUAL TO ENSURE THAT CONNECTOR BEING CHECKED DOES NOT HAVE AN INTERNALLY GROUNDED PIN.
(a)
Connect all non-grounded pins (refer to CAUTION) of connector together electrically, then connect to one side of a 500 volt dc power source. Connect other side of power source to case of connector.
(b)
Apply 500 volts dc for one minute. Measure insulation resistance. The resistance between pins and case should not be less than 100 megohms.
(4) Check pins in wiring harness for security as follows:
(a)
Check security of loose 20 ga. Pins using Contact Retention Test Tool (ACT-3075) or equivalent. If loose pins are indicated, refer to repair.
(b)
Check security of loose 16 ga. Pins using Contact Retention Test Tool (ACT-3075) or equivalent t. If loose pins are indicated, refer to repair.
(c)
Check security of loose 12 ga. Pins using Contact Retention Test Tool (ACT-3075) or equivalent. If loose pins are indicated, refer to repair.
Inspection
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I. Curvic Coupling Inspection
(1) Check components with curvic coupling halves for curvic tooth bearing pattern.
NOTE: The importance of thoroughly cleaning the curvic coupling teeth prior to inspection cannot be over emphasized. Ensure fluorescent penetrant check has been performed and the part has been visually checked for cracks prior to glass bead peening.
WARNING: USE CORRECT PERSONAL PROTECTION. COMPRESSED AIR WILL CAUSE LOOSE PARTICLES THAT CAN GET IN YOUR EYES. COMPRESSED AIRFLOW CAN CAUSE CUTS, DO NOT POINT IT AT YOUR SKIN.
CAUTION: MASK ALL AREAS EXCEPT CURVIC COUPLING TEETH PRIOR TO PEENING. THIS PROTECTION IS REQUIRED TO PREVENT DAMAGE TO OTHER SURFACES AND REMOVAL OF IDENTIFYING INFORMATION.
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