EarthQuake CS3814 Manual De Usuario

Check for parts online at 

www.getearthquake.com or call 800-345-6007 M-F 8-5

13

Operator's Manual

The Earthquake Chainsaw carton includes the following

-  Power Unit:  Pre-assembled engine, handles, fuel tank, 

oil tank, and chain brake handle.

-  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” Multi-tool: Combination plug/bar wrench

and screwdriver

-  Bar Scabbard: Plastic guard that fits over the guide bar 

and saw chain.

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” multi-tool, loosen and remove the bar

nuts securing the clutch cover to the power unit.  Set the clutch 
cover aside.  Tip: If working in the field, place the bar nuts in 
the clutch cover to keep from losing them in grass or foliage.

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.  

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 

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 counter-clockwise.  
The tension screw is located on the front of the power unit, 
next to the guide bar.

9.  Replace the clutch cover over the bar, and turn the bar nuts 

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.  

Re-tension as needed.

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 re-tensioning on occasion.  As the saw cools 

down the saw chain will shrink, and if left tensioned, could 

cause severe and permanent damage to the guide bar or the 

power unit’s drive components.