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
flowserve.com
4. Install Declutch Assembly (piece #46, 123, 44, and 55).
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 Ball Bearing (piece #33) and O-Ring (piece #129) on the Drive Sleeve.
Install Worm Shaft Assembly
9. Install Worm Shaft Assembly.
NOTE: Push the Worm Shaft Assembly through to about 1/2" past the Input Worm Gear for installing
the Clutch Sleeve (piece #13).
Install Handwheel Assembly
10. 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).
11. Install Thrust Washer (piece #26), Thrust Bearing (piece #27), and second Thrust Washer (piece
#26) into the Handwheel Clutch (piece #16).
12. Put a light coat of grease on the Thrust Bearing. Install Spring (piece #154) into the Handwheel
Clutch.
13. Install Handwheel Clutch Assembly (pieces #16, 154, 26 [two pieces], and 27) into the Housing.
Push remaining Worm Shaft Assembly into the Handwheel Clutch of the Handwheel Clutch
Assembly.
14. Install O-Ring (piece #135) over the Worm Shaft Assembly Bearing.
15. Install Disc Spring Cap (piece #5) and Hardware (pieces #61 and 62).
16. Install Handwheel Cap Gasket (piece #137) and Handwheel Assembly (pieces #41, 112, 34, 137,
134, 155 [two pieces], 154, 70, and 37).
17. Install Hex Head Cap Screw and Lockwasher (pieces #63 and 64).
Install Input Worm Motor Pinion Assembly
18. Install Input Worm Motor Pinion Assembly (pieces #52, 156, 53, 124, and 31) into the Housing.
19. Install Housing Seal (O-Ring) (pieces #131).
Grease Unit
20. Grease unit with the properly recommended grease. (See Section 7.1, Lubrication.)