Flowserve PT Series Limitorque - Manual (Page 19)

19
Limitorque PT Series Worm Gear Operator FCD LMENIM2001-00 – 01/10
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4. Mount the Motorized Pinion (pc# 8) and Bearing assembly into the Gearcase.
note: The Oil Seal should be located near the end of the Motorized Pinion (pc# 8) to facilitate installing the assembly
into the Gearcase (pc# 2).
5. Repack the gearing area with lubricant, thoroughly immersing the Worm/Worm Gear, Worm Shaft Bearings, and
Spur Wheel/Motorized Pinion.
6. Apply Loctite 574 or equivalent around the Oil Seal and slide the Oil Seal down the Motorized Pinion (pc# 8) and
into the Gearcase.
7. Apply a bead of Loctite 574 or equivalent on the machined surface and around the bolt holes of the Gearcase, being
careful to avoid applying Loctite into the bolt holes.
8. Reinstall the Flanged Cover Bearing by seating it into the Flanged Cover from the outboard end of the Cover.
9. Install the Circlip (pc# 22).
10. Prior to installing the Flanged Cover place the Protection Sleeve Seal (pc# 25) against the Oil Seal.
11. Slide the Flanged Cover over the Worm Shaft and place onto the Gearcase.
12. Tap down the Cover Dowels (pc# 18), in the two holes in the Gearcase that are not tapped so that they are flush
with the Flanged Cover.
13. Install the Flanged Cover screws.
14. Attach the Indicator Cap (pc# 12) to the Quadrant (pc# 9) noting the location of the nub on the inside of the plastic
Indicator Cap that sets in one of the drilled holes in the Quadrant.
Caution: Check the condition of the o-ring in the Indicator Cap. If worn or damaged, replace it.
Caution: Check that the Indicator Cap is installed to correctly reflect the position of the Quadrant relative to the valve
position.
note: The cast iron Indicator Cap is attached with two screws.
15. Ensure that the Protection Sleeve (pc# 24) is against the Protection Sleeve Seal (pc# 25). Use the Smalley Retaining
Ring (pc# 23) to push the Protection Sleeve against the Protection Sleeve Seal if needed.
16. Place the Flanged Cover Bearing and Snap Ring (pc# 17) over the Motorized Pinion (pc# 8) and into the Flanged
Cover.
17. Re-insert the Key (pc# 6) in the Motorized Pinion (pc# 8).
18. Check the operator for proper operation. The Worm Shaft should be capable of operation by hand. Stroke through a
complete open-close cycle.