Page 2 - IDENTIFICATION OF SYMBOLS; Starting Reminder; SAFETY RULES; PLAN AHEAD
2 IDENTIFICATION OF SYMBOLS WARNING! This chain saw can be dangerous! Care- less or improper use can cause serious or even fatal injury. Read and understand the instruction manual before using the chain saw. Always use two hands when operating the chain saw. WARNING! Contacting the guide bar tip wit...
Page 3 - Kickback
3 ging, vented goggles or face screen; an approved safety hard hat; and sound barri- ers (ear plugs or mufflers) to protect your hearing. Regular users should have hearing checked regularly as chain saw noise can damage hearing. Secure hair above shoul- der length. Snug Fitting Clothing Safety Shoes...
Page 4 - REDUCE THE CHANCE OF
4 S Pinch-Kickback can occur when the the wood closes in and pinches the moving saw chain in the cut along the top of the guide bar and the saw chain is suddenly stopped. This sudden stopping of the chain results in a reversal of the chain force used to cut wood and causes the saw to move in the opp...
Page 6 - CKA without chain brake; ASSEMBLY; ATTACHING THE BUMPER; DISENGAGED
6 Computed kickback angle (CKA) Table BAR P/N Length CHAIN P/N MODEL 952044815 20 ″ 952051310 31 _ CKA without chain brake PP4620AV NOTE: If this saw is to be used for commer- cial logging, a chain brake is required and shall not be removed or otherwise disabled to comply with Federal OSHA Regulatio...
Page 7 - CHAIN TENSION
7 Chain Brake Chain Brake Nuts Bar Tool Location of shipping spacer 3. Turn adjusting screw on bar counter- clockwise to move the tensioning rack as far as it will go toward the front of the bar. Tensioning Rack Adjusting Screw 4. Slide the bar behind clutch drum until bar stops against clutch drum ...
Page 8 - OPERATION; KNOW YOUR SAW
8 S Lift up tip of guide bar to check for sag. Re- lease tip of guide bar, then turn adjusting screw until sag does not exist. S Tighten chain brake nuts securely with the bar tool. Chain Brake Nuts S Use the screwdriver end of the bar tool to move chain around guide bar. S If chain does not rotate,...
Page 9 - HELPFUL TIP
9 CHOKE/FAST IDLE LEVER The choke and fast idle speed are set by pull- ing the CHOKE/FAST IDLE LEVER out fully for cold starting or after refueling. The choke provides additional fuel to the engine during cold starting. CHAIN BRAKE The CHAIN BRAKE is a device designed to stop the chain if kickback o...
Page 10 - IMPORTANT POINTS TO REMEMBER; STARTING A COLD ENGINE (or warm; CHOKE/FAST IDLE LEVER; STARTING A WARM ENGINE
10 manual. Avoid contact with the muffler. A hot muffler can cause serious burns. To stop the engine move the ON/STOP switch to the STOP position. To start the engine hold the saw firmly on the ground as illustrated. Make sure the chain is free to turn without contacting any object. Hold saw firmly ...
Page 11 - Braking function control; CUTTING METHODS; IMPORTANT POINTS
11 Disengaged Engaged Braking function control CAUTION: The chain brake must be checked several times daily. The engine must be running when performing this procedure. This is the only instance when the saw should be placed on the ground with the engine run- ning. Place the saw on firm ground. Grip ...
Page 12 - Plan a clear retreat path; FELLING LARGE TREES; Hinge holds tree on stump and helps; CUTTING A FALLEN TREE; Use a wedge to remove pinched saw; Overcutting
12 Direction of Fall 45 _ Plan a clear retreat path FELLING LARGE TREES (6 inches in diameter or larger) The notch method is used to fell large trees. A notch is cut on the side of the tree in the de- sired direction of fall. After a felling cut is made on the opposite side of tree, the tree will te...
Page 13 - BUCKING WITHOUT A SUPPORT; Using a log for support; LIMBING AND PRUNING
13 Overcutting Undercutting Undercutting involves cutting on the under- side of the log with top of saw against the log. When undercutting use light upward pres- sure. Hold saw firmly and maintain control. The saw will tend to push back toward you. WARNING: Never turn saw upside down to undercut. Th...
Page 14 - PRUNING; all the way; SERVICE; Replace spark plug; AIR FILTER
14 S Keep the tree between you and the chain. Cut from the side of the tree opposite the branch you are cutting. S Remove larger, supporting branches with the cutting techniques described in BUCK- ING WITHOUT A SUPPORT. S Always use an overcut to cut small and freely hanging limbs. Undercutting coul...
Page 16 - CHAIN SHARPENING; Right
16 Replace guide bar when the groove is worn, the guide bar is bent or cracked, or when excess heating or burring of the rails occurs. If replacement is necessary, use only the guide bar specified for your saw in the repair parts list or on the decal located on the chain saw. CHAIN SHARPENING WARNIN...
Page 17 - STORAGE; IMPORTANT
17 SPARK PLUG The spark plug should be replaced each year to ensure the engine starts easier and runs better. Ignition timing is fixed and non- adjustable. NOTE: This spark ignition system complies with the Canadian standard ICES--002. 1. Loosen 3 screws on cylinder cover. 2. Remove the cylinder cov...