• 1. For RP (riveted pin) roller chain, grind down one end of the outer plate's two pins (same side) to the surface of the plate.
  Be careful of the chain overheating during the grinding process.
  This process is unnecessary for Poly Steel Chain as there are no rivets.
  As RS08B-1 to RS16B-1 use easy cutting pins, the rivets do not need to be ground.
• 2. Remove the cotter pins for CP (cotter pin) roller chain.

  Fig. 1. Rivet-type roller chain

  

  Fig. 2. Grinding the pin ends

  
• 3. Place the roller chain into the groove of the chain vise and tighten the vise to secure the roller to be disassembled.
  Follow 1.3 and 1.4 for Poly Steel Chain and Lambda chain.
  For multi-strand Super Roller Chain, place the lowest roller into the groove of the chain vise.

  Fig. 3. Setting the roller chain in the chain vise

  

  Setting Super Roller Chain

  
• 4. Place a primary punch, according to chain size, on the head of the ground pin, and then hit the head of the primary punch with a hammer.
  Make sure to hit the pins alternatively to ensure the pins are removed evenly and at the same time. Continue to tap the pin until just before the pin is removed from the outer plate.

  Fig. 4. Tapping the pin with the primary punch

  
• 5. Use a secondary punch to remove the pin completely from the outer link plate.

• 1. For RP (riveted pin) roller chain, grind down one end of the outer plate's two pins (same side) to the surface of the link plate. (Same as 1.1)
  Remove the cotter pins for CP (cotter pin) roller chain.
• 2. Remove the two pins from the same outer plate.

  Fig. 5. How to cut a chain using a chain screw

  

• 1. Support the outer plate of the chain in the cradle and push down on the pinhead with the exclusive punch. Then lightly hit the head of the punch using a hammer.
• 2. Be careful not to damage the inner links by using excessive force.

  Fig. 6. Poly Steel Chain set in a cradle

  

  Fig. 7. Cutting Poly Steel Chain

  

• 1. For RP (riveted pin) roller chain, grind down one end of the outer plate's two pins (same side) to the surface of the link plate. (Same as 1.1)
  Remove the cotter pins for CP (cotter pin) roller chain.
• 2. Then cut the chain using an exclusive cradle and an RS Roller Chain punch. Important points for cutting are outlined in 1.1. However, use an exclusive cradle instead of a vise.
• 3. Hit the pins alternatively when removing the pins with a punch.

When connecting roller chain, it is convenient to use the sprocket teeth. Please carry out the following steps.

• 1. Wind the chain around one of the sprockets so that both ends of the chain are facing each other on the sprocket.
• 2. Insert the connecting link in the two end links of the chain.
• 3. Insert the connecting link plate of the connecting link and fasten the plate using the clips/cotter pins or spring pins provided.
• 4. When using an F-type (press-fit) connecting link, insert the connecting link plate by tapping it with a hammer until it moves into position. Then fasten it using the clips/cotter pins or spring pins provided.
• 5. Use protective measures to prevent damage to the teeth when hammering.

Fig. 8. Connecting on a sprocket

If a sprocket cannot be used due to layout, follow the procedures below.

• 1. Wind the chain around the sprockets and pull the chain ends together using a chain puller (see Accessories section) or wire.
• 2. Insert the connecting link in the two end links of the chain.
• 3. Insert the connecting link plate of the connecting link and fasten the plate using the clips/cotter pins or spring pins provided.

Fig. 9. Connecting between shafts

1. Clip

Clips are used for roller chain (under RS60) connecting links.
When connecting the chain, the clip should be inserted securely into the slot of the pin on the connecting link after the connecting plate has been inserted on the pin.

If the legs of the clips are spread too far they will not catch properly and will fall off during operation of the chain.

The clip is generally installed opposite to the direction of travel for the chain as shown in Fig. 10.

Fig. 10. Direction in which the clip is installed

2. Cotter pin

Tsubaki cotter pins are heat treated, except for on certain corrosion-resistant chains and specialty roller chains.

The legs of the cotter pin should be bent approx. 60 degrees. Cotter pins should not be reused, and commercially available cotter pins other than those produced by Tsubaki should be avoided.

Fig. 11. Attaching clips and pins

RS Roller Chain cotter pin dimensions (Exclusively for roller chain )

Note) Cotter pins unavailable for RS240.