The Steering and Transmission Integrated Controls (STIC) May Not Be Operating Correctly{3033} Caterpillar

Landfill Compactor:

826H (S/N: AWF402-UP)

836G (S/N: BRL75003-UP)

836H (S/N: BXD509-UP)

Load Haul Dump:

R1300G Series II (S/N: RSL1541-UP)

R1300G (S/N: LJB101-UP)

R1600 (S/N: 9EW78003-UP)

R1600G (S/N: 9PP178-UP; 9YZ401-UP)

R1700G (S/N: SBR546-UP; 8XZ78005-UP)

R2900G (S/N: GLK864-UP; JLK810-UP)

Wheel Dozer:

834H (S/N: BTX249-UP)

844H (S/N: BTW167-UP)

854G (S/N: A4W258-UP)

854K (S/N: 221275-UP)

Wheel Loader:

988F Series II (S/N: 2ZR75010-UP)

988H (S/N: BXY1462-UP)

990 Series II (S/N: 4FR75001-UP)

990H (S/N: BWX373-UP)

992G (S/N: 7HR1-UP; AZX696-UP; ADZ1-UP)

992K (S/N: H4C285-UP)

993K (S/N: Z9K269-UP)

994F (S/N: 442225-UP)

Introduction

The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.

Problem

Recent reports indicate that the Steering and Transmission Integrated Controls (STIC) may not be operating correctly. The 177-4113 STIC Control Gp may encounter the following issues:

• The transmission may not shift directions.

• The upshift button is inoperative.

• The downshift button is inoperative.

• The transmission performs intermittent shifting.

Preliminary analysis of field return parts indicates that the ground wire within the 177-4113 STIC Control Gp is breaking due to loose mounting of the Forward Neutral Reverse switch.

Solution

Replace the 177-4113 STIC Control Gp with a new 177-4113 STIC Control Gp .