4 How to Disconnect RS Roller Chain There are two relatively simple methods for disconnecting RS Roller Chain. One way is to use a chain vise and punch. The other is to use a chain breaker.
Using a Chain Vise 1. For riveted type U.S. Tsubaki Roller Chain, first grind down one end of the pin to be removed. For cottered type chain, be sure to take out the cotter pin. 2. As shown in Figure 4-1, put the chain into the vise groove and tighten the vise to secure the chain. 3. Hit the head of the pin with a punch or hammer. Be sure to hit the pins alternately for even removal. Note: For riveted types, be sure to grind off the riveted part of the pin. If the pin is taken out without grinding, it will take more time and may damage the chain. Chain vises and punches are available for RS40 to RS240 chain.
Figure 4-1: Disconnecting RS Roller Chain
Table 4-1: Chain Vise Selection
Chain No.
No. of Strands
RS40 RS50 RS60 RS80 RS100 RS120 RS140 RS160 RS180 RS200 RS240 1 CV-1 2 CV-2 CV-3 3 Not In Stock Indicates CV-1 Indicates CV-2 Indicates CV-3 Notes: 1. For overlapping parts, a smaller chain vise is easier to use. 2.These chain vises can also be used for double-pitch chain other than RS Roller Chain.
Table 4-2: Chain Vise Dimensions
mm (in.)
Type
L
H
B
CV-3
CV-1
100
65
94 ~ 115
CV-1
(3.94)
(2.56)
(3.70 ~ 4.53)
180
110
120 ~ 151
CV-2
(7.09)
(4.53)
(4.72 ~ 5.94)
CV-2
200
170
180 ~ 220
CV-3
(7.87)
(6.69)
(7.09 ~ 8.66)
Figure 4-2: Chain Vise Types
6 I NSTALLATION & M AINTENANCE
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