2000/02/14 Caterpillar

Wheel Skidder:

515 (S/N: 4LR1-UP)

525 (S/N: 1DN1-UP)

545 (S/N: 2FZ1-UP)

Wheel Tractor:

824G (S/N: 4SN1-UP)

844 (S/N: 2KZ1-UP)

854G (S/N: 1JW1-UP)

Wheel Loader:

980G (S/N: 2KR1-UP; 2SR1-UP; 9CM1-UP)

988F (S/N: 8YG1-UP)

988F Series II (S/N: 2ZR1-UP)

990 (S/N: 7HK1-UP)

990 Series II (S/N: 4FR1-UP)

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

992D (S/N: 7MJ1-UP)

994D (S/N: 3TZ1-UP)

Earthmoving Compactor:

825G (S/N: 6RN1-UP)

826G (S/N: 7LN1-UP)

Service Magazine, SEPD0497, 15 November 1999, "Improved Transmission Direction Rocker Switch Available". The table on page 18 of this article is incorrect. An additional STIC control (shift lever) is now available. See the article with the same title in this issue.

Reference: Special Instruction, SEHS9615, "Servicing DT Connectors"

Description of Change: The transmission direction rocker switches in Table 1 have been replaced by the new switches in Table 1. The STIC control (shift levers) in Table 2 have been replaced by the new STIC control (shift levers) in Table 2.

Table 1

Former Switch	New Switch
145-8673 159-8663	177-2373 177-2374

Table 2

Former STIC control (shift levers)	New STIC control (shift levers)
117-0298 136-1155 159-8661	177-4113

1. Remove The Former Switch.

   1. Place the actuator in the NEUTRAL position.

   2. Use a small screwdriver in order to depress the tangs that are located on each end of the connector.

   3. Remove the actuator from the switch.

   4. Remove the screws that mount the transmission direction rocker switch onto the steering wheel.

   5. Remove the black ground wire from the switch's ground stud.

   6. Remove the purple wire and the gray wire from the connector. See Special Instruction, SEHS9615, "Servicing DT Connectors".

   7. Remove the transmission direction rocker switch from the assembly.

Illustration 1	g00670145

1. Install The New Switch.

   1. Note the direction of the actuator on the new switch.

   2. Remove the actuator from the new switch.

   3. Apply 4C-4030 Thread Lock Compound to the two screws.

   4. Tighten the screws to 0.7 ± .2 N·m (6 ± 1.8 lb in).

   5. Reinstall the actuator on the switch.

   6. Install the gray wire, purple wire, and blue wire on the connector. See illustration 1.

   7. Apply 4C-4030 Thread Lock Compound to the ground post.

   8. Tighten the ground bolt to 1.7 ± 0.2 N·m (15 ± 1.8 lb in).

   9. Check for proper operation of the transmission direction rocker switch.

Adaptable To: The above changes are effective with Table 3.

Table 3

Sales Model	Part Name	Part Number
515 (S/N: 4LR00728-UP) 525 (S/N: 1DN02013-UP) 545 (S/N: 2FZ00275-UP) 826G (S/N: 7LN00525-UP) 980G (S/N: 2KR03305-UP)	Transmission Direction Rocker Switch	177-2373
844 (S/N: 2KZ00305-UP) 854 (S/N: 1JW00244-UP) 988F II (S/N: 2ZR02050-UP) 990S II (S/N: 4FR00424-UP) 992G (S/N: 7HR00385-UP)	Transmission Direction Rocker Switch STIC control (shift lever)	177-2374 177-4113