Usage:
784B (5RK) Tractors;
785 (8GB),
785B (6HK),
789B (7EK),
789C (2BW),
793 (3SJ),
793B (1HL),
793C (4AR) Off-Highway Trucks
- SUPPLEMENT: JULY 19, 1999
Service Magazine, SEPD0458, Article 9, Page 8, February 15, 1999; "Thrust Buttons For Planetary End Housing Assembly Salvage Now Available".
Disregard this article and see Service Magazine SEPD0481, Article 8, Page 14 with the same title.
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Description of Change: A 147-2392 Thrust Button is now available to salvage the planetary end housing assembly when contact damage from the ring gear has occurred.
Illustration 1.
Typical thrust button hole location. (Dimension in millimeters.)
Illustration 2.
Section F-F. Thrust button hole dimensions.
It is necessary to machine twenty-four Ø15.5 ± 0.1 mm (.61 ± .004 in) holes with Ø25 ± 0.3 mm (1.0 ± .012 in) and 5 ± 0.1 mm (.2 ± .004 in) deep counterbore in the planetary end housing assembly as in Illustration 1 and 2.
The thrust buttons are installed in the planetary end housing assembly and held in place by a baffle that is bolted to the housing. The ring gear then will contact the thrust buttons and the possibility of damage to the end housing assembly, ring gear and contamination by metallic particles will be reduced.
Adaptable To: The 147-2392 Thrust Button is adaptable to the 3T-0213 Planetary End Housing Assembly used in 784B (5RK1-Up), 784C (2PZ1-Up), 785 (8GB1-Up), 785B (6HK1-Up), 785C (1HW1-Up), 785C HAA (5AZ1-Up), 789B (7EK1-Up) Off-Highway Trucks.
The 147-2392 Thrust Button is adaptable to the 9U-9850 Planetary End Housing Assembly used in 793 (3SJ1-Up), 793B (1HL1-Up), 793C (4AR1-Up), Off-Highway Trucks.
The 147-2392 Thrust Button is adaptable to the 8E-5626 Planetary End Housing Assembly used in 789C (2BW1-Up) Off-Highway Trucks.