Triple Roller Joint AAR 2900, Disassembling and Assembling

Triple roller joint AAR 2900, disassembling and assembling

Disassembling
- Open clamp of joint piece and slide back CV joint boot.
- Open clamp at shaft and slide back CV boot.





- Drive slot-head screwdriver or similar tool in cover and pry off cover.
- If cover cannot be pried off, it is recommended to drive screwdriver in on the opposite side, then pry off cover.





- Mark installation position of parts 1 through 3 with lines.
- It is only necessary to mark when the rollers can be pulled off triple roller star.
- If they are not marked and are not re-installed in their previously installed positions, noises may occur later during driving operation.
- A water-proof felt pen is well-suited for marking.
- Remove rubber ring - arrow - from groove.
1 - Triple roller joint housing
2 - Triple roller star
3 - Axle shaft
- Secure joint piece and remove drive axle from vise.

Make sure that roller does not slip out of triple roller star and fall to the ground!
- Hold drive axle with joint piece in vertical position and now slowly slide joint piece back using the other hand.





- Mark installation position of rollers - 1 - to triple roller star - 2 - using felt-tip marker.
- Remove rollers - 1- and set aside on a clean surface.





- Remove securing ring.
1 - Pliers (commercially available)
- Insert axle shaft in vise.





- Secure axle shaft then press off triple roller star from drive axle.
- Pull off joint piece with CV joint boot from axle.
- Clean shaft, joint piece and groove for oil seal.

Assembling
- Slide small clamp for CV boot onto shaft.
- Slide CV boot onto shaft.
- Slide joint piece onto shaft.

Mount triple roller star.
- Chamfer on star faces toward shaft, it facilitates assembly.





- Connect triple roller star on shaft and press on up to stop.
- Make sure that pressure does not increase above 3.0 t!
- If necessary, coat drive axle splines and triple roller star with solid lubricant G 052 142 A2.
- Insert securing ring, be sure to fit properly.
- Install rollers according to markings on triple roller star.
- Slide joint piece over rollers and secure.
- Press 70 grams of drive axle grease from repair kit into triple roller joint.
- Press 70 grams of drive axle grease from repair kit into back of triple roller joint and CV joint boot.





- Insert round seal - 3 - from repair kit into groove of triple roller joint - 4 -.
1 - Circlip
2 - Cover from repair kit
3 - Sealing ring
4 - Triple roller joint
- Insert axle shaft in vise.





- Press cover - 1 - far enough into triple roller joint so that securing ring can be inserted.
- Insert securing ring, be sure to fit properly.

Securing ring must engage audibly!
- Install CV boot.





- Position triple roller joint approximately in center of slide path, see distance between min. and max.
- Hold triple roller joint in this position and lift CV joint boot - arrow -.
- This dissipates any vacuum created within the CV joint boot.





- Mount clamp.

Note: Position the crimping tab - arrow A - of the clamp between mounting flanges of joint piece - arrows B -. This will facilitate threading the socket head bolts during installation of the drive axle.





- Tighten clamp using Hose Clamp Pliers V.A.G 1275.





- Tighten small clamp using Hose Clamp Pliers V.A.G 1275.