Operator's Manual
CS3814, CS3816, CS4116 Chainsaws
Installing Spark Plug
1.Reinstall original spark plug, tighten additional 1/2 turn.
2.Installing new spark plug, adjust spark plug gap to .025”
(0,635mm) and tighten additional 1/8 – 1/4 turn.
NOTE: Loose spark plug may overheat and damage engine. Over tightened spark plug may damage threads in the cylinder head.
Carburetor
Never tamper with the factory setting of the carburetor.
Sharpening Saw Chain Cutters (Teeth)
The saw chain included with this saw is a 91VG Chamfer Chisel™ or 91P Chamfer Chisel™ and requires a 5/32 inch round file (included in the original packaging).
When to have your saw chain sharpened:
•Sawdust becomes
•You need to force the saw into the cut
•The saw tends to cut through at an angle instead of making a straight cut
•Vibration increases
Saw Chain Tension Maintenance
Keeping the saw chain at the proper tension is necessary for safe operation and will help prolong the life of the saw chain and the guide bar.
1.Shut the power unit off and allow the saw to cool.
2.The saw chain should not hang down from the bottom edge of the guide bar.
3.Wearing protective gloves, hold the guide bar with one hand and pinch the chain with the free hand.
4.Pull down on the chain. It should pull away from the bar, but the drive links should not disengage the groove around the perimeter of the guide bar.
5.Add or remove tension as needed.
6.Hold up on the guide bar nose and tighten the bar nuts with the Scwrench.
Add tension at the beginning of every work session. Check tension at every
Remove tension at the end of every work session.
• Fuel consumption increases
Always inspect your saw chain prior to sharpening. Check for the following:
•Bent or burred drive links
•Broken cutters or
•Loose rivets or broken rivet heads
If broken components are found, discard the chain immediately. To properly sharpen you saw chain:
1.Be sure to have the correct size file and file guide.
2.When hand filing it’s important that 1/5, or 20 percent, of the file’s diameter is always held above the cutter’s top plate.
3.Keep the correct
4.Sharpen all cutters on one side of the chain first. Sharpen by filing from the inside of each cutter to the outside. After sharpening the first side, turn the saw around and repeat the process for cutters on the other side of the chain.
5.If the chrome surface of the top or side plates is damaged, file back until such damage is removed.
Saw Chain Maintenance
Keeping the saw chain sharp is a critical component to operating a chainsaw. A dull saw chain will drastically reduce cutting efficiency and can pose certain safety hazards.
•Avoid unintentionally striking foreign objects. This can cause a kickback, but will also reduce the sharpness or permanently damage the saw chain.
•Avoid cutting wood that has been drug on the ground. Sand, dirt, and mud stuck to the log will dull the saw chain.
6.Keep all cutters at an equal length. Begin filing on the cutter with the most damage, and file all subsequent cutters to the same length.
7.DO NOT alter or file the tops of bumper tie strap links (between each cutter) on the 91VG chain.
•Avoid cutting wood that may contain metal such as nails, staples, or wire.
•Avoid cutting all the way through when bucking a log. This could allow the chain to come into contact with the soil below, dulling the saw chain.
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