PSZ2450S 848-A59-93A0 (909) U S OWNER'S/OPERATOR'S MANUAL POLE SAW PSZ2450S WARNING The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. WARNING Before using our products, please read this manual carefully to understand the proper use of your unit.
PSZ2450S SAFETY FIRST Instructions contained in warnings within this manual marked with a symbol concern critical points which must be taken into consideration to prevent possible serious bodily injury, and for this reason you are requested to read all such instructions carefully and follow them without fail. ■ WARNINGS IN THE MANUAL WARNING This mark indicates instructions which must be followed in order to prevent accidents which could lead to serious bodily injury or death.
PSZ2450S 1. Parts location U S (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) Primer pump Air cleaner cover Choke lever Fuel tank Starter knob Spark arrester Gear case Chain cover Saw chain Guide bar Grip Drive shaft housing Sholder strap hanger Throttle trigger Stop switch Throttle cable 2. Specifications ■ PSZ2450S Overall size (LxWxH) ····················································································· 83.9(2130) x 9.8(250) x 12.
PSZ2450S 3. Warning labels on the machine (1) (2) (3) (4) (5) (6) 15m (50ft) (1) Read owner's manual before operating this machine. (2) Wear head, eye and ear protection. (3) Warning! Danger of kickback. (4) Beware of thrown objects.
PSZ2450S 5. For safe operation 1. Read this manual carefully until you completely understand and follow all safety and operating instructions. 2. Keep this manual handy so that you may refer to it later whenever any questions arise. Also note, if you have any questions which cannot be answered herein, contact the dealer from whom you purchased the product. 3. Always be sure to include this manual when selling, lending, or otherwise transferring the ownership of this product. 4.
PSZ2450S 5. For safe operation between each person sufficient to ensure safety. 3. Check the condition of working area to avoid any accident by hitting hidden obstacles such as stumps, stones, cans, or broken grass. IMPORTANT Remove any obstacle before beginning work. 4. Inspect the entire unit for loose fasteners and fuel leakage. Make sure that the cutting attachment is properly installed and securely fastened. 5. Always use the shoulder strap. Adjust the strap for comfort before starting the engine.
PSZ2450S 5. For safe operation have been certified by RedMax for use with the RedMax product. 4. In the event that any part must be replaced or any maintenance or repair work not described in this manual must be performed, please contact a representative from the store nearest RedMax authorized servicing dealer for assistance. 5. Do not use any accessory or attachment other than those bearing the RedMax mark and recommended for the unit. 6.
PSZ2450S 5. For safe operation • Never use a cracked or warped guide bar: replace it with a serviceable one and make sure it fits properly. • If a saw blade should bind fast in a cut, shut off the engine immediately. Push the branch or tree to ease the bind and free the blade. • Do not operate the pole pruner with the muffler removed. • When cutting a limb that is under tension, be alert for springback so that you will not be struck by the moving limb.
PSZ2450S 6. Set up ■ MOUNTING ENGINE (SE1) 1. Push the driveshaft housing toward the clutch housing and rotate it by hand to check that the driveshaft is engaged with the gears. 2. Insert the driveshaft housing into the clutch housing until it bottoms, and align the positioning holes on the both housings and install the screw. 3. Fasten the clamp securely with 2 screws. SE1 WARNING The saw chain has very sharp edges. Use protective gloves for safety. SE5 WARNING ■ CONNECTING THROTTLE WIRE 1.
PSZ2450S 7. Fuel and Chain Oil ■ FUEL lines or fuel tank of the engine. WARNING • Gasoline is very flammable. Avoid smoking or bringing any flame or sparks near fuel. Make sure to stop the engine and allow it cool before refueling the unit. Select outdoor bare ground for fueling and move at least 10 ft (3 m) away from the fueling point before starting the engine.
PSZ2450S 7. Fuel and Chain Oil test standard has been discontinued by API in 1995 and it no longer exists. IMPORTANT • Gasoline/Oil mixture Storage Recommendations Store your gasoline or gasoline/oil mixture in a cool dry area in a tightly sealed approved container to limit the entry of moisture and additional air (oxygen). Moisture and air cause the development of varnish and gum, making the fuel stale. Stored gasoline and gasoline/oil mixture ages and loses its octane rating and volatility.
PSZ2450S 8. Operation ■ STARTING ENGINE 7. Move the choke lever downward to open the choke. And restart the engine. (OP3) 8. Allow the engine to warm up for a several minutes before starting operation. WARNING The cutting head will start rotating upon the engine starts. 1. Feed fuel and chain oil into their respective tanks and tighten the caps securely. (OP1) OP1 NOTE 1. When restarting the engine immediately after stopping it, leave the choke open. 2.
PSZ2450S 8. Operation ■ ADJUSTING OIL FLOW RATE ■ ADJUSTING THROTTLE CABLE • The normal play is 1 or 2mm when measured at the carburetor side end. Readjust with the cable adjuster as required. (OP8) OP8 WARNING Never fill the oil reservoir nor adjust the oiler with the engine running. .04 in (1~2mm) (1) IMPORTANT An increase in bar oil flow rate will speed oil consumption, requiring more frequent checks on the oil reservoir.
PSZ2450S 9. Maintenance Maintenance, replacement, or repair of the emission control device and systems may be performed by any non-road engine repair establishment or individual. CUTTING UNIT SHAFT ENGINE ■ MAINTENANCE CHART MA1 (1) System/compornent Procedure fuel leaks, fuel spillage fuel tank, air filter, fuel filter wipe out inspect/clean see ■ADJUSTING IDLING SPEED (p.
PSZ2450S 9. Maintenance ■ SAW CHAIN Make sure every cutter has the same length and edge angles as illustrated. (MA8) MA8 WARNING It is very important for smooth and safe operation to keep the cutters always sharp. (4) Cutter length (5) Filing angle (6) Side plate angle (7) Top plate cutting angle U S Your cutters need to be sharpened when: • Sawdust becomes powder-like. • You need extra force to saw in. • The cut way does not go straight. • Vibration increases. • Fuel consumption increases.
PSZ2450S 9. Maintenance TIGHTENING TORQUE: 87–121 (in-lbs) (9.8–13.7 N.m.) check the area around the muffler and remove any wood chips or leaves which have attached themselves to the brushcutter. Failing to do so could cause the muffler to become overheated, and that this in turn could cause the engine to catch on fire. Always make sure that the muffler is clean and free of wood chips, leaves, and other waste before use.
PSZ2450S 10. Storage • Aged fuel is one of major causes of engine starting failure. Before storing the unit, empty the fuel tank and run the engine until it uses all the fuel left in the fuel line and the carburetor. Store the unit indoor taking necessary measures for rust prevention. U S 11. Disposal • When disposing your machine, fuel or oil for the machine, be sure to allow your local regulations. 12. Troubleshooting guide Case 1.
PSZ2450S FEDERAL AND CALIFORNIA EMISSIONS CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS The EPA (U.S. Environmental Protection Agency), CARB (California Air Resources Board), Environment Canada and RedMax are pleased to explain the emissions control system's warranty on your 2009 and later small off-road engine. In U.S.
PSZ2450S warranty is warranted for the remaining warranty period. Any warranted part that is scheduled only for regular inspection in the maintenance schedule will be warranted for a period of two years. A statement in such written instructions to the effect of "repair or replace as necessary" will not reduce the period of warranty coverage. Any such part repaired or replaced under warranty will be warranted for the remaining warranty period.
