Re: Triple Red Band Rebuild
***EDIT: Better pics added***
Well here goes. First off before you start go to the hub diagram thread and download the service diagram and read it thoroughly.
Dissassembly:
1. Remove the Adjusting Cone Lock Nut AB-35, using Wrench AB-102 (or make your own using the idea elsewhere in this thread) shift brake to low gear, and rotate sprocket clockwise ( in the driving direction ) until the sun gear is disengaged from planet gears. The cone can then be removed and the brake disassembled in the normal manner.
The custom wrench made from a 12mm socket.
Loosen the lock nut
Rotate the sun gear clockwise to remove the sun gear and planetary assembly
The planetary assembly should slide out of the sun gear. USE CAUTION NOT TO LOOSE THE 11 (OR 12) LOOSE BALL BEARINGS!
Slide the rest of the unit out of the hub
Remove the clutch pack
Remove the lock nut, brake arm, and dust cap.
Unscrew the disc set assembly from the axle.
Now you can take all the inner assemblies apart to clean, repair, or replace what is needed.
I decided to put the innerds together with out the housing or grease so I would be sure how it went together and to make the pics easier to see.
That being said, Here we go.
1. Screw the Cone Arm and Disc Support AB-33, onto axle until 1 1/8" of axle projects beyond the outside end. ( Short spline end outside ).
2. Assemble hub retainer AB-16, ( large bearing ) on the anchor cone, (balls facing in ).
3. Install Anchor End Dust Cap AB-31; Brake Arm AB-10; and Lock Nut BB-15. Tighten lock nut ( 1" of axle should project outside of lock nut ).
4. Assemble Disc Set AB-22, by first placing a thin steel disc next to cone arm and disc support, alternate brass and steel disc are assembled with the thick steel disc and inside end of the disc set. ( Disc Set is composed of six steel and five brass discs ). Steel discs should be lubricated before assembly by dipping in grease to approximately one-third their diameter.
5. Install Plate Assembly AB-6, and lock the assembly with Retaining Ring AB-9.
6. Install the low speed clutch retarder spring in the groove of the plate assembly. ( Control Nut Retarders are the spring wires wrapped around Plate Assembly AB-6 and High Speed Clutch Assembly AB-23--retarder springs are not sold seperately ). Assemble the Retarder Coupling, Low Speed AB-12, on the Plate Assembly. ( This retarder coupling has no hooks ). When properly assembled the ends of the low speed clutch retarder spring will point toward the open section of the Low Speed Retarder Coupling.
7. Install the high speed retarder spring in the groove of the High Speed Clutch AB-23. ( High Speed Retarder Spring is not sold seperately and becomes part of AB-23 assembly ). Assemble the High Speed Retarder Coupling AB-21, on this clutch. When properly assembled the ends of the high speed retarder spring will point toward the open section of the High Speed Retarder Coupling.
8. Assemble the Low Speed Clutch AB-3, on the High Speed Retarder Coupling AB-21, by hooking one finger of the coupling through the slot in the Low Speed Clutch and spreading the High Speed Retarder Coupling far enough to allow the opposite finger to through the other slot in the clutch. ( The tapered surfaces on the clutches should slant in the same direction ). This comprises the Clutch Pack Assembly AB-45.
9. Install the Clutch Pack Assembly on the axle. Fingers on the Low Speed Retarder Coupling should project through the slots in the Clutch Pack Assembly.
10. Align and center the lugs of the brass discs. Carefully align the slots in the hub with lugs on discs and assemble hub. If Disc Aligning Tool AB-103 is available it should be used to compress disc pack in order to hold the disc lugs in alignment before assembling hub.
11. Assemble the Indexing Spring AB-26, over the indexing sleeve on the High Speed Screw Assembly AB-18 or 19. The three short lugs must be next to the ball race shoulder.
12. Assemble the Planet Gears MS-37, in the Low Speed Screw AB-2, by driving the Planet Pins AB-30, flush with, or slightly below the surface containing the large holes. This now becomes the Low Speed Driving Screw Assembly AB-28.
13. This is composed of the control assembly, the Low Speed Screw Assembly AB-28, and eleven loose 1/4" balls AB-24. The balls should be placed in the internal ball race of the Control Assembly AB-18. The Low Speed Screw Assembly AB-28, should be assembled with AB-18, and checked for free rolling.
14. Locate hub Retainer AB-16, ( large bearing ) in the drive end of the hub. Assemble transmission assembly by holding together and screwing clockwise until both members are seated on their bearings.
15. Drop drive end Retainer AB-20, in place.
16. Locate Drive End Dust Cap AB-32, on Adjusting Cone and Sun Gear AB-7, and assemble drive end Dust Cap Lock Ring AB-41. Be sure dust cap seats flush all the way around.
17. Screw the Dust Cap, Sun Gear and Cone Assembly on axle until the sun gear engages the planet gears. ( It may be necessary to rotate the sprocket slightly in order to engage the gears ). Use wrench BB-100, and backoff 90* - 120* ( degrees ). Hold cone in this position and tighten Lock Nut AB-35, using Cone Adjusting Wrench AB-102.
I will edit to add pics of the final greased assembly later. This being my first detailed rebuild thread, I am open to any suggestions or comments to help make my next one better.
And thanks for letting me piggyback the thread.
