Flowserve PT Series Limitorque - Manual (Page 29)

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Limitorque PT Series Worm Gear Operator FCD LMENIM2001-00 – 01/10
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8. Remove the Tapered Roller Bearing (pc# 6) from the open worm bore.
9. Remove the Tapered Roller Bearing (pc# 6) from the blind worm bore.
10. Attach two eye bolts to the Drive Sleeve/Gear (pc# 3) and remove.
11. Remove the Worm Shaft (pc# 2) from the Housing (pc# 1).
12. Remove the Hex Nut (pc# 11) from the Drive Sleeve Stops (pc# 10) and remove the Stops from the Housing.
Reassembly Instructions:
1. Install the Drive Sleeve Stops (pc# 10) into the Housing (pc# 1) and reattach the Hex Nuts (pc# 11).
2. Insert the Worm Shaft (pc# 2) into the Housing.
3. Attach two eye bolts to the Drive Sleeve/Gear (pc# 3) and install into the Housing.
note: Replace the upper O-Ring (pc# 4) and lower O-Ring (pc# 5) on the Drive Sleeve/Gear (pc# 3). Lubricate the
O-Rings for easier installation.
4. Install the Tapered Roller Bearing (pc# 6) and bearing cone for the blind worm bore.
5. Install the Tapered Roller Bearing (pc# 6) and bearing cone for the open End Cap.
6. Install the open End Cap and Worm Shaft Gasket (pc# 17).
7. Re-lubricate the housing to replace lubricant lost during disassembly.
8. Insert two eye bolts into the Base Plate (pc# 13) and install the Base Plate (pc# 13) to the Housing (pc# 1).
note: Ensure that the O-Ring is securely positioned into the groove on the bottom of the Base Plate. Lubricate the
O-Ring for easier installation
9. Turn the operator right side up and install the blind Worm Cap (pc# 7) and Worm Shaft Shim Set (pc# 9) on the
Housing.
note: Add or subtract shims until there is no excessive play in the Worm Shaft (pc# 2) and the Worm Shaft turns
freely.
10. Attach two eye bolts to the Stem Nut (pc# 18) and install into the Drive Sleeve/Gear
11. Install the Pointer Cap.
12. Check the rotation of the Drive Sleeve/Gear through one complete open-close cycle to ensure proper operation.