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Limitorque B320 Series FCD LMENIM3201-02 – 01/15
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6.3.7 Disassembly of 17.5:1 Spur Gear Attachment for B320-90
(Piece numbers refer to Figure 6.9 and Table 6.7).
1. Remove Socket Head Cap Screws (piece #220) and Lockwashers (piece #221) to remove the
Housing Cover (piece #201). The Input Shaft and Pinion (piece #202, 207, 208 ad 211) are
removed with the Housing Cover (piece #201).
NOTE: If the Input Shaft is horizontal, exercise caution when removing the Housing Cover.
Prepare to support the 2nd Set Input Shaft Assembly (piece# 204, #205, and #206)
2. Remove the 1st Set Output Gear (piece #203), the 2nd Set Input Shaft (piece #204), and the 2nd
Set Input Gear (piece #205).
3. Remove the Socket Head Screw (piece #218), Lockwasher (piece #217), and the Flat Washer
(piece #216).
4. Remove the 2nd Set Output Gear (piece #206).
5. Remove the Hex Head Cap Screw (piece #222) and Lockwashers (piece #223), and remove the
Housing (piece #200) and O-ring (piece #212).
6. Continue disassembly as detailed in Section 6.2, Disassembly & Reassembly – B320-90.
6.3.8 Reassembly of 17.5:1 Spur Gear Attachment for B320-90
(Piece numbers refer to Figure 6.9 and Table 6.7).
1. Install O-ring (piece #212) and Housing (piece #200) using the Hex Head Cap Screws (piece
#222) and Lockwashers (piece #223).
2. Install the 2nd Set Output Gear (piece #206).
3. Install the Flat Washer (piece #216), Lockwasher (piece #217), and Socket Head Cap Screws
(piece #218).
4. Install the 2nd Set Input Gear (piece #205), 2nd Set Input Shaft (piece #204), and 1st Set Output
Gear (piece #203).
5. Apply liquid gasket to the flange surface of the Housing (piece #200), and install the Housing
Cover (piece #201) using Lockwashers (piece #221) and Socket Head Cap Screws (piece #220).
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