Usage:
815F (1GN),
816F (5FN),
825G (6RN),
826G (7LN) Compactors;
12H (4XM1-1147, 8MN1-461, 2WR1-565, 2GS1-301),
14H (7WJ1-474),
16H (6ZJ1-237),
120H (4MK1-286, 2AN1-81, 9FN1-337, 9YR1-271),
135H (3YK1-203),
140H (2ZK1-1716, 9TN1-121, 9ZN1-160, 3AS1-401),
143H (1AL1-301),
160H (9EJ1-419, 3GM1-51, 2HS1-351),
163H (5AK1-119) Motor Graders;
953B (5MK1-Up),
953C (2ZN),
963B (9BL),
973 (86G1399-Up) Track Loaders;
D6H (4RC5500-Up, 6FC5500-Up, 8FC5500-Up, 1KD5500-Up, 2KD5500-Up, 3ED5500-Up, 3ZF5500-Up, 4YF5500-Up, 5HF5500-Up, 6CF5500-Up, 2TG5500-Up, 3YG5500-Up, 4GG5500-Up, 4LG5500-Up, 8ZJ1-Up, 9KJ1-Up, 2DK5500-Up, 5KK1-Up, 6CK1-Up, 7ZK1-Up, 8KK1-Up, 8SK1-Up, 9LK1-Up, 9RK1-Up, 1YL1-Up, 2BL1-Up, 2TL1-Up),
D6R (2YN, 3ZN, 4MN, 5LN, 6JN, 7KN, 8LN, 9PN),
D7H (4AB4000-Up, 5WB4000-Up, 5BF4000-Up, 2RG4000-Up, 3XG4000-Up, 4FG4000-Up, 79Z4000-Up, 80Z4000-Up),
D7R (2EN, 3DN, 9HM, 2HR),
D8N (5TJ1-Up, 7TK1-Up),
D8R (7XM) Track-Type Tractors;
950F Series II (4DJ, 5SK, 8TK, 2LM),
960F (9ZJ, 4CL, 6XL, 1YM),
966F Series II (8BG, 6FJ, 9YJ, 1SL),
970F (7SK, 9JK, 7PL),
980G (9CM, 2KR, 2SR),
980F Series II (8JN),
992G (7HR) Wheel Loaders;
515 (4LR),
525 (1DN) Wheel Skidders;
814F (9DM),
824G (4SN) Wheel Tractors;
613C (8LJ, 9GM, 93X),
615C (2XG, 9XG),
621F (4SK, 5JK),
623E (5SG),
623F (6BK),
627F (4YK, 1DL) Wheel Tractor - Scrapers
Reference: Service Magazine; March 10, 1997; Page 2; "New Fuel Tanks And New Fuel Level Senders Provide More Accurate Readings"
Reference: Service Magazine; April 10, 1995; Page 8; "New Fuel Level Senders Now Used For Models Equipped With A 9X-3496 Fuel Level Gauge"
Reference: Service Magazine; October 31, 1994; Page 5; "New Fuel Level Senders Now Used For Models Equipped With A 9X-3496 Fuel Level Gauge"
Description of Change: The sensor-dials resistive elements in the fuel level senders have been improved internally to prevent intermittent or open conditions.
Adaptable To: The 138-0444, 139-8661, 139-8662, 139-8663, 139-8665, and 139-8666 Sensor-Dials in the Fuel Level Sender Assembly have been improved effective with date code D97 (D = April, 97 = 1997) at the supplier. The improvement can also be noted by checking the part number marked on the top of the complete sender assembly. The change level of the new sender has been marked after the part number. Senders made before the improvement DO NOT have the change level marked after the part number. The part numbers of the improved Sensor-Dials and the part numbers of the former Sensor-Dials are also shown in Chart 1.
The location of the sensor-dial is shown in Illustration 1. To check effectivity for the machine being serviced, and to find the correct Fuel Level Sender Assembly part number and improved Sensor-Dial part number, refer to Chart 2. This is a partial list of effective serial numbers because not all effective serial numbers are known at this time. As a reference, the sensor-dial will read approximately 64 to 255 ohms at the empty position and 0 to 29 ohms at the full position (varies depending on part number-see Chart 3) when using the Caterpillar 6V-7070 Multimeter or equivalent. Typically, the sensor-dial is all that needs to be replaced on a malfunctioning sender assembly.
Illustration 1:
Typical Sensor-Dial location (1).
