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CC-1132 & CC-1133 Transmission Gear Hardness

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Tough Torque Transmissions Service Bulletin/ TT SBD Update Service Advisory

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Service Advisory Summary: CC-1132 / CC-1133

  • Subject: Premature Side Bevel Gear Wear on Tuff Torq Transmissions.

  • Affected Models: Cub Cadet XT1 & XT2 Enduro Series (Model Years 2021 through 2022).

  • Transmission Assemblies Affected:

    • 918-07207A (K46DM Hydro Trans)

    • 918-07208A (K46DS Hydro Trans)

    • 618P08373A (TL200D Hydro Trans)

  • Issue: Side bevel gear (P/N 168T20-31560) does not meet specifications, causing potential rapid excessive wear and premature failure.

  • Symptoms to Inspect: Jerking while turning, rapid loss of power, reduced speed/climbing ability on hills, unusual noises (popping/grinding), or loss of propulsion and braking.

  • Warranty & Claim Guidance: FIX-AS-FAIL basis; original failed part listed as TT-1A646031570. Inspection/repair labor allowance is 2.0 Hrs under Fail Code "Supplier Defect".

    • CC-1132: Applies to mowers less than 2 years from original purchase date.

    • CC-1133: Applies to mowers more than 2 years past original purchase date.

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1. What specific transmission part is cited in Service Advisory CC-1132/CC-1133 as failing to meet specifications?
Differential side bevel gear (P/N 168T20-31560) Hydrostatic pump piston plate Input drive pulley spline Charge pump impeller shaft
2. How do technicians determine whether to use Advisory CC-1132 or CC-1133 when processing an affected unit?
Whether the unit is less than 2 years or more than 2 years past the original purchase date Whether the tractor is an XT1 model or an XT2 model Whether the unit uses a Kohler engine or a Kawasaki engine Whether the transmission is manufactured by Tuff Torq or Hydro-Gear
3. Which of the following operational symptoms is NOT listed in the advisory as a sign of side bevel gear wear?
Engine overheating under heavy mower deck load Jerking while turning Popping, cracking, or grinding noises from the transmission Loss of propulsion and braking
4. What is the labor allowance and Fail Code to select on the warranty claim for CC-1132?
2.0 Hrs / Supplier Defect 1.0 Hr / Improper Torque 0.5 Hrs / Wear and Tear 1.5 Hrs / Loose Assembly
5. According to the inspection procedure, what must be present on the fill cap to qualify the transmission for replacement under CC-1132?
Debris on the fill cap Discolored or burnt fluid Cracked plastic reservoir housing Metal shavings on the external drain plug
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