Pellerin Milnor Corporation 169
Figure 73. Using Threaded Rods
Legend
A...Tie bolt
B...Threaded rod
C...Piston stem
4. Loosen nuts on threaded rods evenly, permitting cylinder heads to separate. Use only a few
turns on one nut before moving to the other one. Continue until springs have no tension.
Figure 74. Ensuring Correct Piston Cup Shape
Correct Piston Cup Shape Distorted Piston Cup Shape
Legend
A...Locknut
B...Piston Cup
5. Note the position and orientation of the piston cup(s), washers, and springs. Replace the worn
parts, then reassemble them in reverse order. Tighten the locknut until it is just barely possible
to turn the piston cup and washer assembly on the stem. The correct piston cup shape is
shown on the left side of the above figure. Do not overtighten the locknut, as this causes the
Pneumatic
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