D6D TRACTOR POWER TRAIN – Final Drive Pinion Shafts And Flanges

Remove Final Drive Pinion Shafts And Flanges

Start By:

a. remove steering clutches

NOTE: The steering clutch hubs do not have to be removed for the removal of the final drive pinion shafts and flanges.


NOTICE

Keep all parts clean from contaminants. Contaminants put into the system may cause rapid wear and shortened component life.


1. Install a bolt and two nuts that will fit in a hole on the outside diameter of the flange toward the bottom of the steering clutch case. Put a wood block between the bolt and the bottom of the steering clutch case. The bolt will hold the flange in position when nut (1) is loosened.

2. Remove bolt, lock and nut (1).

------ WARNING! ------

Install nut (1) back on the pinion shaft until there is a distance of 3.2 mm (1/8 in.) between the nut and flange. The flange is installed with a force of several tons. The nut will keep the flange on the shaft after it is removed from the tapered splines.

--------WARNING!------

3. Install tooling (A) on the flange. Remove the flange (2). Remove tooling (A) and the nut from the pinion shaft. Remove the flange from the pinion shaft.

4. Remove the Duo-Cone seals from the flange and cage. Put identification on the seals for correct installation.

5. Remove the bolts that hold the cage in position. Install two 3/8″-16 NC forcing screws in the cage. Tighten the screws evenly until the cage is loose. Remove cage (3).

6. Remove pinion shaft (4).

7. Remove the plug from the cage with tool (B).

8. Install a 1/4″-20 NC bolt in the dowel that holds the bearing in the cage. Remove dowel (5) from the cage.

9. Remove ring (7) and bearing (6).

10. Remove the two bearing races from the pinion shaft with tooling (C).

Install Final Drive Pinion Shafts And Flanges

1. Heat the two bearing races (8) to a maximum temperature of 135°C (275°F). Install the two bearing races on the pinion shaft until they make contact with the shoulders on the shaft.

2. Install the pinion shaft (4) in the final drive case.

3. Install the bearing in the cage with tooling (A). Install the ring that holds the bearing in position.

NOTE: Make sure the hole in the bearing is in alignment with the hole in the cage.

4. Install dowel (5) in the cage and into the bearing.

5. Install a new plug over the dowel.

NOTE: For assembly and installation of duo-cone seals, see topic, Duo-Cone Seals, in this manual.

6. Install the Duo-Cone seal in the flange with tool (B).

NOTE: The rubber seal and the surface that makes contact with the seal must be clean and dry. After installation of the seal, put clean oil on the contact surface of the metal seal.

7. Put 7M7260 Liquid Gasket Material on the contact surface of cage (8) and the surface in the steering clutch case with which cage (8) makes contact.

8. Install cage (8) in the steering clutch case. Install bolts (9) that hold the cage in position. Tighten the bolts to a torque of 135 ± 14 N·m (100 ± 10 lb.ft.).

NOTE: For assembly and installation of duo-cone seals, see topic, Duo-Cone Seals, in this manual.

9. Install the Duo-Cone seal in the cage with tool (B).

NOTE: The rubber seal and the surface that makes contact with the seal must be clean and dry. After installation of the seal, put clean oil on the contact surface of the metal seal.

10. Install flange (10) on the pinion shaft. Install tooling (C). Push the flange into position with a force of 180 to 225 kN (20 to 25 tons).

11. Remove tooling (C). Check the distance from the face of the flange to the shoulder on the pinion shaft [Dimension (D)]. Dimension (D) must be 3.18 ± 0.76 mm (.125 ± .030 in.).

12. Install the large nut on the end of the pinion shaft. Tighten the nut to a torque of 950 ± 135 N·m (700 ± 100 lb.ft.). Install the lock and the small bolt that holds the lock.

End By:

a. install steering clutches

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