Remove the front panel. Multiply the count by two to include the inner links.
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Pitch gauge and the number of drive links are the three numbers you need when its time for a replacement chainsaw chain.
How to count drive links on chainsaw chain. Measure from the first to the third then divide that number in half to get your chain pitch. Finally- count the number of drive links on your old chain loop to get the correct replacement chain. The drive link count is included in the saw chain part number after the chain type designation example 20BPX066 H66.
Count each outside link which is easily identifiable by the large plates on either side of the link. The proper way for how to measure a chainsaw chain length is as follows. How to Change a Chainsaw Chain.
The chain must match the guide bar numbers and sprocket to work correctly. Find a quarter a dime and a penny. This number needs to match the drive link reference often stamped on the chainsaw bar or via the manufacturers reference table.
Find the pitch of your chain by picking three circular rivets and measuring the distance between them. Remove the old chain if there is one Inspect and clean the bar. STIHLs green and yellow color code system serves to identify STIHL bars and chains with different kickback reduction characteristics.
157 rows The second is the gauge or the thickness of the drive lugs. Thats because chainsaw chains actually have three measurements. Rim Sprockets use a pocket that must be wide enough to allow the drive tangs to seat.
The drive links are the individual units that create the chain and connect to the chainsaw cog. Example 72LGX 072 G 72 Drive Links 72LGX 070 G 70 Drive Link count. To determine the chain gauge you can use this simple trick.
To get a chain that is the correct size you need to count the drive links those little teeth on the underside of the chain. Clean around the sprocket. The number of drive links on a chainsaw gives you the overall length of the chain.
Pull the bar off. Look for the chains drive links which are sometimes referred to as lugs. One tip is to place a strip of tape on the first link and count your way around.
Screw the panel back on. But if youre unsure you can simply take the chain off and count the drive links. Green go marks those products which are designed to reduce the risk of kickback injury and comply with the ANSI B1751 kickback standard.
Grab a scrench and a gauge tool. The drive links are the teeth on the underside of the chain. ANSI B1751 Chain Saw Kickback Standard.
Common examples of drive length count are 70 for D or 72 chain. The Number of Drive Links in the Chain this matches the guide bar length. Learn how to take these measurements with this instructional video.
Learn how to take these measureme. Pitch gauge and the number of drive links are the three numbers you need when its time for a replacement chainsaw chain. The most common measurements of pitch youll see on replacement chain are 38 and 325.
The only effect chain gauge will have on standard spur sprockets is the contact area it presents on the spur teeth thicker gauge wider contact area. Counting complete and half links as Sheldon does is non-standard at least as far as the industry is concerned. Some chainsaws will have this number printed on the tool or listed in the user manual.
Youll need to count each drive link on the chain to find the length of your chain. This Video is to help you better understand what drive links are on your chainsaw. Chain gauge must match the groove width on the bar.
0050 13 mm and 0058 15. Counting complete links has the effect of halving the number of links thus Image A would have 2 complete links Image B would have 4 complete links and that five foot length of SRAM chain would have 60 complete links. Gauge is the thickness of the drive tangs on the saw chain.
This is the most mundane part of the measurement process but also one of the most important. Number of drive links pitch and gauge. While chainsaws are sold based on the length of their guide bar the best way to ensure youre purchasing the right replacement chain is by the number of drive links you need.
Re-assemble the bar and chain. These links protrude from the underside of the chain and they grab the drive cog powering the chain. Knowing this is very important to maintaining your chainsaw and better und.
Measure the pitch This is the distance between each drive link. Pitch is the length of the links that make up the chain basically the distance spanned by three rivets divided by 2 and chain. Want to know how to measure a chainsaw chain.
The suggested bar chain types are based on the most common Original Equipment Combinations Chainsaw Model Bar Length Bar Type Chain Type Drive Links Chain Pitch Chain Gauge 12 HLI-280-45 H36-45 45 38 050. Once you have this number divide it by two. Pitch gauge and the number of drive links are the three numbers you need when its time for a replacement.
Count the drive links Count the individual links on the chain one by one. We mentioned drive links when discussing the gauge of a chain. The drive link count is the last 3 numbers before the G on the chain part number.
Continue counting until you reach the beginning. As an example if you counted 55 outer links you will know there are 110 total links.
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