Zenoah PSZ2500 manual

OWNER / OPERA T OR MANUAL POLE SA W 848-A52-93A1 (501) PSZ2500 The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. W ARNING Before using our machine, please read this manual carefully to understand the proper use of your unit. W ARNING DRIVE UNIT 000000 [...]

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 This mark indicates i[...]

2. Specifications ■ PSZ2500 Overall size(LxWxH) ························································ 83.9(2130)x9.8(250)x12.2(310) in(mm) Dry weight w/o bar and chain ····························································?[...]

 4  (1) Read owner's manual before operating this machine. (2) Wear head, eye and ear protection. (3) Handling this machine improperly could result in accidents causing serious injury or death. Read this manual carefully and practice using the machine until you are fully acquainted with all operations and have learned to use it correctly[...]

For safe operation and maintenance, symbols are carved in relief on the machine. According to these indications, please be careful not to take a mistake. (a) The port to refuel the "MIX GASOLINE" Position: FUEL TANK CAP (b) The direction to close the choke Position: AIR CLEANER COVER (c) The direction to open the choke Position: AIR CLEAN[...]

 6  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[...]

b. At night, at times of heavy fog, or at any other times when your field of vision might be limited and it would be difficult to gain a clear view of the working area. c. During rain storms, during lightning storms, at times of strong or gale-force winds, or at any other times when weather conditions might make it unsafe to use the product. ■ WO[...]

 8  ■ BEFORE STARTING THE ENGINE 1. Make sure there is always good ventilation when operating the pruner. Fumes from engine exhaust can cause serious injury or death. Never run the engine indoors! 2. The area within a perimeter of 50 feet (15m) of the person using the product should be considered a hazardous area into which no one should en[...]

Never place the throttle into the high speed position when starting the engine. 3. After starting the engine, check to make sure that the cutting attachment stops rotating when the throttle is moved fully back to its original position. If it continues to rotate even after the throttle has been moved fully back, turn off the engine and take the unit[...]

 10  • IF SOMEONE COMES 1. Guard against hazardous situations at all times. Warn adults to keep pets and children away from the area. Be careful if you are approached. Injury may result from flying debris. 2. If someone calls out or otherwise interrupts you while working, always be sure to turn off the engine before turning around. ■ MAIN[...]

5. For safe operation ■ HANDLING FUEL 1. The engine of the RedMax product is designed to run on a mixed fuel which contains highly flammable gasoline. Never store cans of fuel or refill the tank of the unit in any place where there is a boiler, stove, wood fire, electrical sparks, welding sparks, or any other source of heat or fire which might ig[...]

 12  ■ KICKBACK AND PINCHING SAFETY PRECAUTIONS Beware of kickback! Kickback can occur whenever the tip of the guide bar touches an object while the saw is operating. Kickback may force the bar up and back toward the operator with lightning-like speed! Beware of pinching. Pinching the saw along the tip of the guide bar may force the bar bac[...]

• Make sure the chain and sprocket are correctly adjusted before operating the pruner (see page 15,16 for adjustment procedures). Never attempt chain adjustment with the engine running! • Always make sure the cutting attachment is properly installed and firmly tightened before operation. • Never use a cracked or warped guide bar: replace it w[...]

 14  ■ 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 clutch housing and the shaft tube and install the screw. When di[...]

6. Set up A standard package contains the items as shown below. (SE4) (1) Guide bar (2) Saw chain (3) Gase case (4) Sprocket (5) Chain tension adjust screw (6) Nut (7) Chain tensioner nut (8) Chain cover Install the guide bar and the saw chain on the gear case as follows. The saw chain has very sharp edges. Use protective gloves for safety. 1. Loos[...]

 16  6. Set up 5. Tighten the mounting nut securely with the bar tip held up (SE8)(TORQUE: 8.9~11.7 N.m./90~120 kg-cm). Then check the chain for smooth rotation and correct tension while moving it by hand. If necessary, readjustment. (1) Tighten It is very important to maintain the proper chain tension. Rapid wear of the guide bar or the chai[...]

7. Fuel and chain oil ■ RECOMMENDED MIXING RATIO GASOLINE 50:OIL 1 • Exhaust emission are controlled by the fundamental engine parameters and components(eq., carburation, ignition timing and port timing) without addition of any major hardware or the introduction of an inert material during combustion. • These engines are certified to operate [...]

 18  7. Fuel and chain oil again for at least one minute. As some oils may be difficult to agitate depending on oil ingredients, sufficient agitation is necessary for the engine to last long. Be careful that, if the agitation is insufficient, there is an increased danger of early piston seizing due to abnormally lean mixture. 5. Put a clear i[...]

■ STARTING ENGINE 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) 2. Rest the unit on a flat, firm place. Keep the cutting head off the ground and clear of surrounding objects as it will start rotating upon starting of the engine. 3. Push the [...]

 20  8. Operation ■ STOPPING ENGINE (OP4) 1. Release the throttle lever and run the engine for a half minute. 2. Shift the ignition switch to the STOP position. • Except for an emergency, avoid stopping the engine while pulling the throttle lever. ■ CHECKING OIL SUPPLY After starting the engine, run the chain at medium speed and see if [...]

Adjust the pump as follows: 1. Stop the engine and make sure the stop switch is in the OFF position. 2. Place the unit on its side with the oil reservoir up. (OP7) (1) Oil tank (2) Chain cover The oil flow adjusting screw must be pressed in slightly in order to turn. Failure to do so could damage the pump and screw. 3. With a screwdriver, push in o[...]

 22  9. Maintenance (1) MA1 MA2 MA3 every every every 25 50 100 system/compornent procedure before hours hours hours note use after after after fuel leaks, fuel spillage wipe out ✔ fuel tank, air filter, fuel filter inspect/clean ✔✔ replace, if necessary see ■ ADJUSTING replace carburetor idle adjusting screw ✔ IDLING SPEED (p.21) i[...]

9. Maintenance The bar rail should always be a square. Check for wear of the bar rail. Apply a ruler to the bar and the outside of a cutter. If a gap is observed between them, the rail is normal. Otherwise, the bar rail is worn. Such a bar needs to be corrected or replaced.(MA4) (1) Ruler (2) Gap (3) No gap (4) Chain tilts ■ SPROCKET Check for ex[...]

 24  9. Maintenance MA8 MA7 Place your file on the cutter and push straight forward. Keep the file position as illustrated. (MA6) After every cutter has been set, check the depth gauge and file it to the proper level as illustrated. (MA7) Be sure to round off the front edge to reduce the chance of kickback or tie-strap breakage. (1) Appropria[...]

■ GEAR CASE The reduction gears are lubricated by multipurpose, lithium-based grease in the gearcase. Supply new grease every 25 hours of use or more often depending on the job condition. When adding lubricant, use a grease gun to insert lubricant into the three grease nipples located on the gear case. (MA9) (1) Grease fitting •M ake sure that [...]

 26  ■ SPARK PLUG • Starting failure and mis-firing are often caused by a fouled spark plug. Clean the spark plug and check that the plug gap is in the correct range. For a replacement plug, use the correct type specified by RedMax. (MA12) • REPLACEMENT PLUG IS A NGK CMR7A. • Note that using any spark plug other than those designated [...]

9. Maintenance ■ INTAKE AIR COOLING VENT •N ever touch the cylinder, muffler, or spark plugs with your bare hands immediately after stopping the engine. The engine can become very hot when in operation, and doing so could result in severe burns. •W hen checking the machine to make sure that it is okay before using it, check the area around th[...]

11 . T roubleshooting guide Case 1. Starting failure CHECK PROBABLE CAUSES ACTION fuel tank ➞ incorrect fuel ➞ drain it and with correct fuel fuel filter ➞ fuel filter is clogged ➞ clean carburetor adjustment screw ➞ out of normal range ➞ adjust to normal range sparking (no spark) ➞ spark plug is fouled/wet ➞ clean/dry ➞ plug gap [...]

12. Parts list NOTE : 1. Use KOMATSU ZENOAH genuine parts as specified in the parts list for repair and/or replacement. 2. KOMATSU ZENOAH does not warrant the machines, which have been damaged by the use of any parts other than those specified by the company. 3. When placing parts orders for repair and/or replacement, check if the model name and th[...]

12. Parts list  30  Fig.1 DRIVE UNIT PSZ2500 (S/N 000000 and up) Fig.2 CUTTING UNIT PSZ2500 (S/N 000000 and up)[...]

Fig.2 CUTTING UNIT PSZ2500 (S/N 000000 and up) Fig.1 DRIVE UNIT PSZ2500 (S/N 000000 and up) Key# Description Part Number Q'ty 1P IPE COMP. T3002-12101 1 2S HAFT 3520-12213 1 3 GRIP 6442-11332 1 4 LEVER COMP. T3002-12202 1 5• LEVER 6110-14412 1 6• CORD(A) T3002-12220 1 7• CORD(B) T3002-12230 1 8 TUBE T3002-12240 1 9 CABLE COMP. T3002-8310[...]

Fig.3 ENGINE UNIT PSZ2500 (S/N 50100000 and up)  32  12. Parts list[...]

Fig.3 ENGINE UNIT PSZ2500 (S/N 50100000 and up)  33  Key# Description Part Number Q'ty 1 CYLINDER 848-F30-12A2 1 2 GASKET, base 4810-12210 1 3 BOLT 1850-12130 2 4 INSULATOR 4810-13162 1 5 GASKET, insulator 4810-13120 1 6G ASKET, carburetor 4810-13130 1 7 SCREW 0263-90520 1 8 REEDVALVE (S) ASSY 848-F30-1602 1 9• VALVECASE (S) 848-F30-16[...]

EMISSION-RELATED PARTS, FOR TWO (2) YEARS FROM THE DATE OF ORIGINAL DELIVERY OF THE UNIT, KOMATSU ZENOAH AMERICA INC. (THE COMPANY), THROUGH ANY RedMax DEALER, WILL REPAIR OR REPLACE, FREE OF CHARGE, FOR THE ORIGINAL AND EACH SUBSEQUENT PURCHASER, ANY PART OR PARTS FOUND TO BE DEFECTIVE IN MATERIAL AND/OR WORKMANSHIP. EMISSION-RELATED PARTS ARE: TH[...]

Pièces en rapport avec les émissions de gaz d'échappement : KOMATSU ZENOAH AMERICA INC., par l'intermédiaire de n'importe quel revendeur RedMax, réparera gratuitement ou remplacera gratuitement pour l'acheteur initial et chaque acheteur successif toute(s) pièce(s) se révélant de constitution et/ou de montage défectueux [...]

KOMATSU ZENOAH AMERICA INC. 4344 Shackleford Road Suite 500 Norcross, Georgia 30093 ©P rinted in Japan[...]