Jonsered CS 2138 - Manual

5 Thumb on underside of handlebar Elbow locked S Keep a good, firm grip on the saw with both hands when the engine is running and don’t let go. A firm grip will help you reduce kickback and maintain control of the saw. Keep the fingers of your left hand encir- cling and your left thumb under the fro...

6 SAFETY NOTICE: Exposure to vibrations through prolonged use of gasoline powered hand tools could cause blood vessel or nerve damage in the fingers, hands, and joints of people prone to circulation disorders or abnormal swellings. Prolonged use in cold weather has been linked to blood vessel damage...

7 7. Place chain over and behind clutch, fitting the drive links in the clutch drum sprocket. 8. Fit bottom of drive links between the teeth in the sprocket in the nose of the guide bar. 9. Fit chain drive links into bar groove. 10. Pull guide bar forward until chain is snug in guide bar groove. Ens...

8 IMPORTANT Experience indicates that alcohol blended fuels (called gasohol or using ethanol or methanol) can attract moisture which leads to separation and formation of acids during storage. Acidic gas can damage the fuel system of an engine while in storage. To avoid engine problems, empty the fue...

9 S The inertia activated chain brake is acti- vated if the front hand guard is pushed for- ward, either manually or by centrifugal force. S If the brake is already activated, it is disen- gaged by pulling the front hand guard back toward the front handle as far as possible. S When cutting with the ...

10 NOTCH CUT AND FELLING THE TREE S Make notch cut by cutting the top of the notch first. Cut through 1/3 of the diameter of the tree. Next complete the notch by cut- ting the bottom of the notch. See illustra- tion. Once the notch is cut remove the notch of wood from the tree. Notch First cut Secon...

11 S Roll the log over and finish with a second overcut. S Give special attention to logs under strain to prevent the saw from pinching. Make the first cut on the pressure side to relieve the stress on the log. BUCKING USING A LOG OR SUP- PORT STAND S Remember your first cut is always on the pressur...

12 SERVICE AND ADJUSTMENTS WARNING : Disconnect the spark plug before performing maintenance, except for carburetor adjustments. We recommend all service and adjustments not listed in this manual be performed by an Authorized Service Dealer. MAINTENANCE SCHEDULE Check: Fuel mixture level Before each...

13 CHAIN SHARPENING Chain sharpening is a complicated task that requires special tools. We recommend that you refer chain sharpening to a professional chain sharpener. CARBURETOR ADJUSTMENTS WARNING : The chain will be moving during most of this procedure. Wear your pro- tective equipment and observ...

15 TECHNICAL DATA SHEET Engine Cylinder volume, cm 3 42 Stroke, mm 32 Idle speed, rpm 3,000 Recommended max. speed, unloaded, rpm 13,000 Power, kW 1,8 Ignition system Manufacturer Walbro Type of ignition system CD Spark plug Champion Electrode gap, mm 0,5 Fuel and lubrication system Manufacturer Wal...