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TECHNICAL INFORMATION
Subject Change of Spur Gear 93
63414
For Models 6791D, 6792D, 6793D, 6794D, 6795D
Country All countries
Description Induction Hardening has been added in the manufacturing process of Spur Gear 93 to increase its
durability. The new Spur Gear can be distinguished from the current one by checking the marks
made by Induction Hardening. See the illustration below.
Current New
Marks made by Induction Hardening
Material: Steel S45C not induction-hardened Material: Steel S45C induction-hardened
Interchangeability(I/C)
Item No. Current part Q'ty I/C New part Q'ty Note
Spur Gear 93 Spur Gear 93
1 1 See note 1 below.
221988-3 221988-3
Spindle Complete Spindle Complete
006 1 1 For 6791D, 6793D
153186-0 153186-0
Spindle Complete Spindle Complete
006 1 1 For 6793D, 6794D
153220-6 153220-6
Spindle A'ssy (with Gear) Spindle A'ssy (with Gear)
006 1 1 For 6791D, 6792D
134728-9 134728-9
Spur Gear 93 Complete Spur Gear 93 Complete
027 1 1 For 6795D
153250-7 153250-7
Note
1. Spur Gear 93 (Pt. No. 221988-3) is a constituent part of Spindle Complete (Pt. No. 153186-0 or 153220-6) or Spindle
A'ssy (Pt. No. 134728-9).
2. Interchangeability mark ; means that the new part is substituted for the current.
Implementation
6791D: From serial No.515600E (Apr.,2001)
6792D: From serial No.505114E (Apr.,2001)
6793D: From serial No.20639E (Mar.,2001)
6794D: From serial No.6433E (Apr.,2001)
6795D: From serial No.502028E (May,2001)