Safe Operation Practices • Set-Up • Operation • Maintenance • Service • Troubleshooting • Warranty Operator’s Manual Chipper Shredder — Model Series 452J WARNING READ AND FOLLOW ALL SAFETY RULES AND INSTRUCTIONS IN THIS MANUAL BEFORE ATTEMPTING TO OPERATE THIS MACHINE. FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY. MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019 Printed In USA Form No.
1 To The Owner Thank You Thank you for purchasing a Chipper Shredder manufactured by MTD LLC. It was carefully engineered to provide excellent performance when properly operated and maintained. If applicable, the power testing information used to establish the power rating of the engine equipped on this machine can be found at www.opei.org or the engine manufacturer’s web site. Please read this entire manual prior to operating the equipment.
Important Safe Operation Practices 2 WARNING: This symbol points out important safety instructions which, if not followed, could endanger the personal safety and/or property of yourself and others. Read and follow all instructions in this manual before attempting to operate this machine. Failure to comply with these instructions may result in personal injury. When you see this symbol.
Safe Handling of Gasoline: 4. To avoid personal injury or property damage use extreme care in handling gasoline. Gasoline is extremely flammable and the vapors are explosive. Serious personal injury can occur when gasoline is spilled on yourself or your clothes which can ignite. Wash your skin and change clothes immediately. If it becomes necessary to push material through the shredder hopper, use a small diameter stick. Do not use your hands or feet. 5.
3. Before cleaning, repairing, or inspecting, stop the engine and make certain the impeller and all moving parts have stopped. Disconnect the spark plug wire and ground it against the engine to prevent unintended starting. 4. Do not change the engine governor settings or overspeed the engine. The governor controls the maximum safe operating speed of the engine. 5. Maintain or replace safety and instruction labels, as necessary. 6.
Safety Symbols This page depicts and describes safety symbols that may appear on this product. Read, understand, and follow all instructions on the machine before attempting to assemble and operate. Symbol Description READ THE OPERATOR’S MANUAL(S) Read, understand, and follow all instructions in the manual(s) before attempting to assemble and operate WARNING— ROTATING BLADES Keep hands out of inlet and discharge openings while machine is running.
3 Assembly & Set-Up Contents of Carton • One Chipper Shredder • One Operator’s Manual • One Engine Operator’s Manual • One Hopper Assembly • One Bag • One Chipper Chute • One Chute Deflector • One Safety Glasses • One Bottle of Oil Assembly NOTE: This unit is shipped without gasoline or oil in the engine. Fill up gasoline and oil as instructed in the accompanying engine manual BEFORE operating your chipper shredder. A Hopper Assembly 1.
2. Remove the hex lock nut, spacers, and hex bolt from the top of the impeller housing. See Figure 3-3B. 2. Align the chipper chute over the weld studs, so the slot in the bottom of the chute is facing down. See Fig. 3-6. 3. Align the chute deflector in position on the discharge opening and insert hex bolt with spacer through hinge on chute deflector (spacers fit inside of hinges). See Figure 3-4A. 3.
Bag 4. Place the opening of the bag completely over the chute deflector. See Figure 3-7. 5. Pull on the drawstring until the bag is tight around chute deflector opening. 6. Clip drawstring back on itself, tight against chute deflector to secure into position. See the inset of Figure 3-7. Figure 3-7 Set-Up Gas and Oil Fill-Up Refer to the separate engine owner’s manual for additional engine information. 1. Add oil provided before starting unit for the first time out of the box. 2.
4 Controls and Features Hopper Release Rod Chipper Chute Discharge Chute Figure 4-1 Chipper Chute Discharge Chute Allows twigs and small branches up to 2” in diameter to be fed into the impeller for chipping. See Fig. 4-1. The discharge chute is where the material exits the unit and can be bagged. Hopper Engine Controls Allow leaves and small branches up to 1/2 diameter to be fed into the impeller for chipping and shredding.
5 Operation WARNING: The operation of any chipper shredder can result in foreign objects being thrown into the eyes, which can damage your eyes severely. Always wear the safety glasses provided with this unit or eye shields before chipping or shredding and while performing any adjustments or repairs. Starting Engine IMPORTANT: Because this manual covers several different model units, different starting instructions may apply to your particular engine. Some engines may have a fuel petcock, some may not.
Shredding Emptying the Bag Yard waste such as leaves and pine needles can be raked up in the hopper for shredding. After material has been processed by the shredder blade and flails, it will be forced out of the chute deflector, and, if attached, into a debris collection bag. 1. Stop engine. 2. Un-clip drawstring and loosen bag from chute deflector opening. See Figure 5-3. 3. Empty bag and reattach to the discharge chute opening.
6 Maintenance & Adjustments Maintenance Equipment Care General Recommendations • Clean the chipper shredder thoroughly after each use. • Wash bag periodically with water. Allow to dry thoroughly in shade. • If the discharge area becomes clogged, remove flail screen and clean as instructed below. • Always observe safety rules when performing any maintenance. • The warranty on this chipper shredder does not cover items that have been subjected to operator abuse or negligence.
Removing the Flail Screen WARNING: The impeller’s shredder blade and chipper blades are sharp. Wear leather work gloves to protect your hands when cleaning out the reduction chamber. If the discharge area becomes clogged, remove the flail screen and clean area as follows: 1. Stop engine and make certain the chipper shredder has come to a complete stop. WARNING: The muffler and surrounding area will be hot if the engine has been running. Use caution and protect your hands if working near the muffler. 2.
7 Service Blade Care 5. Chipper Blades Remove the blade by removing the internal hex screws, lock washers, and hex nuts which secure it to the impeller. See Figure 7-2. Retain the hardware. WARNING: Always stop engine, disconnect spark plug, and ground against engine before cleaning, lubricating or doing any kind of maintenance on your machine. 1. Disconnect the spark plug wire and ground against the engine. 2. Remove the flail screen as instructed in the previous section. 3.
Shredder Blade 8. 1. Stop the engine and make certain that all moving parts have come to a complete stop. 2. Disconnect the spark plug wire and ground against the engine. 3. Lower the hopper assembly and block up the housing. 4. Remove the six hex lock nuts and flat washers from the weld studs on the flail housing. See Figure 7-3A. Retain the hardware. Remove the two internal hex screws, lock washers, and hex lock nuts which secure the shredder blade to the impeller. See Figure 7-4A.
8 Troubleshooting Problem Engine Fails to start Cause Remedy 1. Throttle lever not in correct starting position. 1. Move throttle lever to FAST or START position. 2. Spark plug wire disconnected. 2. Connect wire to spark plug. 3. Choke not in CHOKE position (if equipped). 3. Move choke lever to CHOKE position. 4. Fuel tank empty or stale fuel. 4. Fill tank with clean, fresh gasoline. 5. Engine not primed (if equipped). 5. Prime engine as instructed in Engine Manual. 6. Faulty spark plug. 6.
9 Replacement Parts Component Part Number and Description 942-0571 Shredder Blade 981-0490 Chipper Blade 719-04308 Flail Blade (3 total) 934-04009 Wheel Asm Comp 10X4 Oyster-Carlise Phone (800) 800-7310 to order replacement parts or a complete Parts Manual (have your full model number and serial number ready). Parts Manual downloads are also available free of charge at www.mtdproducts.com.
Notes 10 19
MANUFACTURER’S LIMITED WARRANTY FOR The limited warranty set forth below is given by MTD LLC with respect to new merchandise purchased and used in the United States and/or its territories and possessions, and by MTD Products Limited with respect to new merchandise purchased and used in Canada and/ or its territories and possessions (either entity respectively, “MTD”). This warranty is in addition to any applicable emissions warranty provided with your product.
