Textron Bell 212 - Inspection of Spiral Bevel Gear

BHT-212-MM-1
5-00-00
Page 112 Rev. 14 26 JUN 2013
Export Classification C, ECCN EAR99
Figure 5-6. Inspection of Spiral Bevel Gear (Sheet 1 of 3)
212_MM_05_0004
ROTOR BRAKE QUILL PORT
LOOKING UP THROUGH ROTOR BRAKE QUILL PORT
MANUFACTURING FLATS
INPUT PINION COAST SIDE
PATTERN (VERY LIGHT) LOCATED
AT ONE OR TWO POSITIONS
NOT ACCEPTABLE
DETACHED STRIKE
MARKS USUALLY ONE
PER TOOTH USUALLY ON
ONE OR MORE GROUPS
OF 2, 3 OR 4 TEETH
TOE
CONCAVE SIDE
SCORED PATCH NOT
ACCEPTABLE WILL BE ON
ALL 62 TEETH
0.70 IN.
(17.78 mm)
APPROX.
0.01 TO 0.04 IN.
(0.254 TO 1.016 mm)
ACCEPTABLE BAND
OF BRIGHT MARKING ON
ALL 62 TEETH
0.050 IN. (1.270 mm)
APPROX. PITCH DIA.
NORMAL GAP FROM GEAR ROLL NOT
ACCEPTABLE IF GAP IS NOT EVIDENT
HEEL