Flowserve LY Series Limitorque - Manual (Page 51)

51
Limitorque LY Series: LY 1001, LY 2001 and LY 3001 FCD LMENIM1501-00 – 11/11
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9. Lift Top Plate (piece #2) off the LY Housing (piece #1). The Motor (piece #6) can be left attached to
the Top Plate when the Top Plate is removed.
Remove Input Worm Motor Pinion Assembly
10. Remove Input Worm Motor Pinion Assembly (piece #52, 53, 124, and 31).
Remove Worm Shaft Assembly
11. Remove four Screws (piece #61) and four Lockwashers (piece #62) to remove Bearing Cap
(piece #5).
12. Remove Bearing Cap (piece #5) and O-Ring (piece #135).
13. Rotate Worm Shaft Assembly counterclockwise. The Worm Shaft Assembly should travel out of
the Housing. Once it has reached the end-of-travel, pull the remaining Worm Shaft Assembly out;
Clutch Sleeve (piece #13) will slip off the Worm Shaft Assembly. In the event that the Worm is
stripped, the Worm Shaft Assembly will need to be completely replaced.
NOTE: If Light Spring Pack or Heavy Spring Pack replacement is necessary, contact your Limitorque
authorized dealer or the Limitorque Service Department for a complete Worm Shaft Assembly
replacement.
Remove Handwheel Assembly (LY 2001)
14. Remove the Handwheel Clutch (piece #16), Compression Spring (piece #17), Clutch Sleeve (piece
#13), Thrust Washer (piece #26 [two pieces]), and Thrust Bearing (piece #27).
15. Remove four Screws (piece #70) and four Lockwashers (piece #71) from the Handwheel Cap Plate
(piece #69).
16. Remove the Handwheel Assembly as one piece (pieces #146, 41, 112, 69, 192, 134, and 37).
17. Go to Step 19.
Remove Handwheel Assembly (LY 3001)
14. Remove the Handwheel Clutch (piece #16), Compression Spring (piece #17), Clutch Sleeve (piece
#13) and Thrust Washer (piece #26 [two pieces]), and Thrust Bearing (piece #27).
15. Remove Screws (pieces #63 and 65) and Lockwashers (piece #64 and 66) from the Spur Gear
Cover (piece #34) of the Handwheel Assembly.
16. Remove the Handwheel Assembly as one piece (pieces #146, 41, 112, 136, 39 [two pieces], 34,
137, 116, 115, 38, and 36).
17. Remove the Handwheel Pinion and Idler (piece #43) and Idler Shaft (piece #42).
18. Remove the Handwheel Gear Assembly (pieces #119, 35, and 37).
Remove Drive Sleeve
19. Remove the Roll Pins (piece #174) located in the end of the Mechanical Stop Screws (piece #58).
20. Remove the Mechanical Stop Screws (piece #58), Locking Nut (piece #59), Thread-Seal (piece
#60), and Retaining Washer (piece #184).