Operator's Manual
CS3814, CS3816, CS4116 Chainsaws
Assembly
The Earthquake Chainsaw carton includes the following
-Power Unit:
-Guide Bar: Oregon Double Guard 14” or 16”, depending on the saw model.
-Saw Chain: Oregon 91P or 91VG S52 (14” models) or Oregon S57 (16” models)
-“Scwrench”
-Bar Scabbard: Plastic guard that fits over the guide bar and saw chain.
Assembling your chainsaw
1.Carefully remove all items from the packaging. Place the power unit on a flat, stable work surface with the muffler facing to your right.
2.Pull back (toward the forward handle) on the brake lever to ensure that the chain brake is disengaged.
3.Using the “Scwrench”
4.Remove the plastic shipping spacer from the bar studs. The purpose of this spacer is to keep the clutch cover in the correct position when the guide bar is not installed on the power unit.
SEE FIGURE 1.
5.Install the guide bar on the bar studs, and slide the bar back until it comes into contact with the drive sprocket.
6.Carefully remove the saw chain from its package. Stretch the chain out into a long horizontal loop. The cutting teeth on the top length of chain should face away from the power unit. The cutting teeth on the bottom length of the chain should face toward the power unit. Protective gloves should be used when handling the chain.
7.Wrap the chain around the drive sprocket first, and lay the drive links of the chain into the groove along the outer perimeter of the guide bar. Lay the chain over the nose (tip) of the guide bar.
8.Slide the bar forward until the bar mates with the tensioning tab. Make sure that the drive links of the chain are seated within the groove around the perimeter of the bar. If the bar will not slide forward far enough, use the screwdriver end of the Scwrench to turn the tension screw
9.Replace the clutch cover over the bar, and turn the bar nuts
Warning
Failure to properly tension the chain could result in damage to the unit or severe injury or death. Over tensioning could cause damage to the saw’s power unit or guide bar. Lack of tension could cause the chain to disengage the bar completely, allowing it to whip back where it could contact the operator causing severe injury or death.
Figure 1
onto the bar studs. Only finger tighten the bar nuts at this step.
10.Locate the tension screw on the front of the power unit next to the guide bar. Use the Scwrench to turn the tension screw clockwise. This will take the slack out of the saw chain. When properly tensioned, two conditions must be met:
•The chain should not hang or droop away from the guide bar.
•You should be able to pull the chain slightly away from the guide bar, but not so far as to be able to disengage the drive links from the groove around the perimeter of the bar.
11.Pull up on the guide bar’s nose and use the Scwrench to tighten the bar nuts. Check that the chain spins freely around the bar by hand. If there is resistance, the chain may be too tight.
12.Place the bar scabbard over the guide bar and saw chain. This guard will help to protect the user from the sharp cutting teeth as well as help keep the cutting teeth sharp when the saw is not in use.
13.Check the tension of the saw chain frequently during use, especially during the first two hours of use on a new chain.
14. Always release the tension in the chain after finishing work and before the saw chain and guide bar cool completely. As the saw chain heats up during operation, it will expand and stretch, requiring
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