Limitorque WTR Series - Disassemble SGA for WTR-15 through 150; Disassemble WTR-3 through 150; Reassemble SGA for WTR-15 through 150; Reassemble WTR-3 through 150

WTR Series
Maintenance
WTR Installation & Maintenance Manual 330-15000 • Revision A • August
5.3.1 Disassemble WTR-3 through 150
Piece numbers refer to the Illustrated Parts Breakdown of Figure 6.1.
Remove the Drive Sleeve
1. Remove Hex Head Cap Screws (piece #19) and Spring Washers (piece #20); lift Pointer
Cap (piece #5) from Drive Sleeve (piece #4).
2. Remove Hex Head Cap Screws (piece #15) and Spring Washers (piece #16) from the
WTR Housing Cover (piece #3) and Housing Base (piece #2); remove the Housing
Cover.
3. Back the Stop Screws (piece #13) and Jam Nut (piece #14) out of the WTR to provide
extra space for removing the Drive Sleeve (piece #4).
4. Slide the WTR Housing Assembly away from the Drive Sleeve (piece #4); once
disengaged from the Worm Shaft Assembly, lift the Drive Sleeve out of the WTR
Housing Base (piece #2).
Remove the Worm Shaft Assembly
5. Tap the two Spiral Pins (piece #8) out of the Worm (piece #7) and slide the Input Shaft
(piece #6) out of the actuator.
6. Remove the loose Worm Shaft Assembly parts: O-ring (piece #21), Thrust Bearings
(piece #9) and Shim Washers (piece #28).
5.3.2 Reassemble WTR-3 through 150
Perform Steps 1 through 6 listed above in the reverse order to reassemble the WTR.
5.3.3 Disassemble SGA for WTR-15 through 150
Piece numbers refer to the Illustrated Parts Breakdown of Figure 6.1.
The WTR Spur Gear Attachments are modular and can be assembled directly to the WTR
housing without special modifications. To disassemble the SGA:
1. Remove Key (piece #15) for Input Pinion (piece #3).
2. Remove Mounting Adapter (piece #19) if supplied by removing Hex Head Cap Screws
(piece #21) and Lockwashers (piece #20).
3. Remove Hex Head Cap Screws (piece #11) and Lockwashers (piece #12) and slide
Housing Cover (piece #2) off the Input Shaft (piece #3).
4. Remove the Input Shaft (piece #3), Idler Gear (piece #5), and Output Spur Gear
(piece #4).
5. Remove Socket Head Cap Screws (piece #13) and Lockwasher (piece #14) and slide Spur
Gear Housing (piece #1) off the WTR’s input shaft.
6. Remove Spur Gear Attachment Register (piece #17).
5.3.4 Reassemble SGA for WTR-15 through 150
Perform Steps 1 through 6 listed above in the reverse order to reassemble the WTR.
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