Flowserve LY Series Limitorque User Manual
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Limitorque LY Series: LY 1001, LY 2001 and LY 3001 FCD LMENIM1501-00 – 11/11
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4. Install Declutch Assembly (piece #46, 48, 123, 122, and 44).
5. Install O-Ring (piece #138) over Declutch Shaft (piece #44).
6. Install Declutch Lever (piece #45) and Roll Pin (piece #121).
Install Drive Sleeve
7. Install Drive Sleeve (piece #10).
8. Install Bearing (piece #33) and O-Ring (piece #129) on the Drive Sleeve.
9. Install the Mechanical Stop Screws (piece #58), Locking Nut (piece #59), Thread-Seal (piece #60),
and Retaining Washer (piece #184).
10. Install the Roll Pins (piece #174) located in the end of the Mechanical Stop Screws (piece #58).
Install Worm Shaft Assembly
11. Install Worm Shaft Assembly. Push the Worm Shaft Assembly through to about 1/2” past the Input
Worm Gear. This allows installation of the Clutch Sleeve (piece #13).
Install Handwheel Assembly
12. Install the Clutch Sleeve (piece #13), ensuring the Declutch Fork Assembly (piece #46) is between
the Input Worm Gear (piece #18) and the Clutch Sleeve (piece #13).
13. Install Thrust Washer (piece #26), Thrust Bearing (piece #27) and second Thrust Washer (piece
#26) into the Handwheel Clutch (piece #16).
14. Put a light coat of grease on the Thrust Bearing. Install Spring (piece #17) into the Handwheel
Clutch.
15. Install Handwheel Clutch Assembly (pieces #16, 17, 26 [two pieces], and 27) into the Housing.
Push remaining Worm Shaft Assembly into the Handwheel Clutch of the Handwheel Clutch
Assembly.
16. Install O-Ring (piece #135) over the Worm Shaft Assembly Bearing.
17. Install Bearing Cap (piece #5) and Hardware (pieces #61 and 62).
LY 2001 Handwheel Assembly
18. Install Handwheel Assembly (pieces #146, 41, 112, 69, 192, 134, and 37).
19. Install Hardware (pieces #70 and 71).
20. Go to Step 22.