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 TM 55-1905-219-14-7
3-171.2. CONNECTING ROD - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
INSPECTION (Cont)
c.
Since it is subjected to
downward loading only,
free movement of the
piston pin is desired
to secure perfect align-
ment and uniform wear.
Therefore, the piston
pin is assembled with a
full floating fit in
the connecting rod and
piston bushings with
relatively large clear-
ances. Worn piston pin
clearances up to.010
inch (.025 cm) are
satisfactory.
TRANSVERSE INDICATIONS (ACROSS FLOW LINES)
GRINDING NOTES
LONGITUDINAL INDICATIONS
HAVING A MAXIMUM LENGTH OF 1/2, "INCH CAN
CARE SHDULD BE TAKEN IN GRINDING OUT
FOLLOWING FORGED FLOW LINES
BE REMOVED BY GRINDING NO DEEPER THAN 1/64
INDICATIONS TO ASSURE PROPER BLENDING
ARE USUALLY SEAMS AND ARE NOT
ARE ACCEPTABLE AFTER THEIR COMPLETE REMOVAL,
OF GROUND AREA INTO UNGROUND SURFACE
CONSIDERED HARMFUL IF LESS
AN EXCEPTION TO THIS IS A ROD HAVING AN
SO AS TO FORM A SMOOTH CONTOUR.
THAN 1132 DEEP. DEPTH CAN BE
INDICATION WHICH EXTEHDS OVER THE EDGE OF
DETERMINED BY GRINDING A SMALL
" "SECTION AND IS PRESENT ON BOTH SIDES
H
POOR PRACTICE GOOD PRACTICE
AREA NEAR THE CENTER OF THE
DF THE FLANGE. IN THIS CASE, MAXIMUM
INDICATION.
ALLOWABLE DEPTH IS.005 (SEE SECTION A-A).
3-2940
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