Gradall 534B (9103-1390) Service Manual - Manual (Page 175)

PROPER INSTALLATION OF TEFLON PISTON RING AND PISTON RING EXPANDER SPRINGS
NOTE: NOT ALL TRANSMISSIONS WILL HAVE TEFLON PISTON RINGS AND EXPANDER SPRINGS
Fill the oil sealing ring grooves with a good grade of grease, this will help stabilize the teflon ring and expander spring in the ring
groove for installation.
Position the expander spring in the inner groove of the new piston ring, with the expander spring gap 180° from the hook joint gap
of the piston ring.
Carefully position the piston ring and expander spring on the clutch shaft in the inner most ring groove. Hook the piston piston ring
joint.
Repeat steps 1, 2 and 3 for the remaining ring or rings making certain all hook joints are fastened securely.
Apply a heavy coat of grease to the outer diameter of the rings and clutch shaft. Center the piston ring’s in the ring groove.
Before installing the clutch assembly in the front cover or converter housing it is recommended a piston ring sleeve P/N’s 241309,
237576 or 234265 be used to center all of the piston rings in their respective ring grooves. Use extreme caution to not damage
piston rings when installing the clutch shaft in the front transmission cover or converter housing.
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