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Models
20” Push
This Instruction Book contains information for several models.
Read and keep this book for future reference.
This book contains important information on
SAFETY, ASSEMBLY, OPERATION, AND MAINTENANCE.
PRODUCT INFORMATION
The owner must be certain that all
the product information is included with the unit.
This information includes
the INSTRUCTION BOOKS,
the REPLACEMENT PARTS and the WARRANTIES.
This information must be included to make sure state laws
and other laws are followed.
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MURRAY, INC. One Year Limited Warranty Murray, Inc. warrants to the original purchaser that this unit shall be free from defects in ma- terial and workmanship under normal use and service for a period of One (1) Years from the date of purchase; however, this warranty does not cover engines, accessories (such as snow blowers, snow blades, grass baggers and plows), transmissions, batteries and Nor- mal Wear Parts (except as noted below) or transaxles as the companies that manufacture these items f
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OWNER’S INFORMATION This instruction book is written for a person with some mechanical ability. Like most service books, not all the steps are described. Steps on how to loosen or tighten fasteners are steps anyone can follow with some mechanical ability. Read and follow these instructions before you use the unit. Know your product: If you understand the unit and how the unit operates, you will get the best performance. As you read this manual, compare the illustrations to the unit. Learn the lo
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IMPORTANT Safe Operation Practices for Walk-Behind Mowers. This cutting machine is capable of amputating hands and feet and throwing objects. Failure to ob- serve the following safety instructions could result in serious injury or death. I. General Operation tion which can cause drowsiness or affect your ability to operate this machine safely. 1. Read, understand, and follow all instruc- 15. Never operate mower in wet grass. Always tions on the machine and in the manual(s). be sure of your footi
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IMPORTANT DO NOT: nect the spark plug wire, and keep the wire away from the plug to prevent accidental Do not mow near drop-offs, ditches, or em- starting. Always wear eye protection when bankments. The operator could lose footing you make adjustments or repairs. or balance. 4. Keep all nuts and bolts, especially blade at- Do not mow excessively steep slopes. tachment bolts, tight and keep equipment in Do not mow on wet grass. Reduced footing good condition. could cause slipping. 5. Never tamper
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SAFE MOWING GUIDE Every person who uses power equipment gency. Learn how to cut and how to keep con- must learn the difference between proper and trol of the mower at all times. improper use, safe and unsafe mowing prac- Many mowers are started manually. When us- tices. Read the next few pages carefully. ing a pull start or rope start, place your feet They can help you learn. Too often the mow- firmly and away from the blade. Hold the rope er user is inexperienced, not properly in- handle secure
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SAFE MOWING GUIDE bruises, or even put out an eye. Often the per- improve the performance, help the engine stay son hurt by a thrown object is a bystander such cooler, extend the life of moving parts, and as a child, another family member or a neigh- minimize the danger of fire. People get burned bor. Keep people and pets completely away working with and around their mowers for oth- from the mowing area. Direct the mower’s dis- er reasons than fire and explosions. It takes charge away from areas
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SAFE MOWING GUIDE Use only original equipment or approved sub- in the rain is no fun and it is dangerous. Always stitutions as service parts. If you need profes- seek shelter in an electrical storm. In extreme- sional service, select a shop that is an ly dry mowing conditions, your safety glasses can serve a dual purpose by protecting your Authorized Service Center for your brand of mower. If you plan to service the unit yourself, eyes from dust and thrown objects, also a dust follow directions
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SAFE MOWING GUIDE While mowing, if you hit a foreign object, stop equipped, in FAST position when mowing and the engine. Remove the spark plug wire. Care- bagging. When bagging, slower ground speed fully and thoroughly inspect the mower for will provide the best results. damage. Make necessary repairs before re- Change the mowing pattern slightly each time starting. If the unit starts to vibrate abnormally, you cut. If you always cut the same way, the stop the engine immediately and check for th
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STEPS TO FOLLOW BEFORE MOWING Be sure to dress correctly. Wear hard shoes, not sandals or tennis shoes. Examine the blade. A blade that is bent, cracked, or damaged must be replaced with a factory replacement blade. Fill the fuel tank outside. Clean off spilled fuel. Read and follow the Owner’s Manual, the instructions with the engine, and the instructions with any attachments. Owner’s Manual instructions are for your safety and the safety of others. Exhaust fumes are dangerous. Sta
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ASSEMBLY Read and follow the assembly and adjustment NOTE: Torque is measured in foot pounds instructions for your mower. All fasteners are (metric N.m). This measurement describes in the parts bag. Do not discard any parts or how tight a nut or bolt must be. The torque material until the unit is assembled. is measured with a torque wrench. WARNING: Before doing any TOOLS REQUIRED assembly or maintenance to the 1 Pliers mower, remove the wire from the 2 Adjustable open end wrenches 1 Blade type
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ASSEMBLY NOTE: In this instruction book, left and 3. Attach the chute deflector to the mower right describe the location of a part with housing with a bolt, washer, and nut the operator standing behind the handle. (Figure 1). Make sure the fasteners are tight. UNPACKING INSTRUCTIONS For shipping purposes, the mower was not fully assembled. To complete the assembly of Bolt the mower, follow the steps below. 1x121 HOW TO ASSEMBLE Washer 17x37 THE CHUTE DEFLECTOR Nut WARNING: The chute deflector 1
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ASSEMBLY HOW TO ASSEMBLE THE CONTROLS TO THE HANDLE Two types of handles are shown in Figure 4. with Tecumseh engine, make sure the stop The engine on your model will determine lever bracket is on the right side of the han- which type of handle is on your model. Type A dle. is for models with Briggs & Stratton engines. Type B is for models with Tecumseh engines. 1. Mount the ends of the engine stop lever into the top holes of the handle. Note: On models with Briggs & Stratton en- gines, make sur
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ASSEMBLY 3. Attach the engine stop cable to the en- Briggs gine. Models with Briggs & Stratton en- Engine gines are shown in Figure 5. Models with Tecumseh engines are shown in Figure 6. 4. Make sure the engine stop cable moves freely. If the cable does not move freely, re- peat the above steps. Engine Stop Cable CAUTION: A cable that is bent or damaged will not work correctly. Before you use the unit, replace a damaged cable. 5. Attach the cable to the handle with the Figure 5 cable fastene
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ASSEMBLY HOW TO ASSEMBLE THE Mower Housing WHEELS WITH AXLE BOLTS 1. To change the height of cut, change the position of the axle bolts on the mower housing. Make sure you assemble each axle bolt in the same hole position so that the mower will cut level. Hub Cap 2. Make sure to mount each wheel with the wheel flange on the inside toward the Flange Nut mower housing as shown. Assemble the 15x68 wheel to the mower housing with an axle Washer bolt, washer, and flange nut (Figure 8). 845 To tighte
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OPERATION ENGINE STOP LEVER WARNING: Always use a safety gasoline container. Do not smoke Release the engine stop lever and the engine when adding gasoline to the fuel and the blade will automatically stop. To run tank. When inside an enclosure, the engine, hold the engine stop lever in the Operating position (Figure 9). do not add gasoline. Before you add gasoline, stop the engine and Before you start the engine, operate the en- gine stop lever several times. Make sure the let the engine cool f
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MAINTENANCE Hard starting. ENGINE MAINTENANCE Engine smoking. Use the following maintenance section to keep Spark plug fouling. your unit in good operating condition. All the Oil or gas saturation of the air filter. maintenance information for the engine is in the ”Engine Instruction Book”. Before you start the engine, read this book. WARNING: Before you make an inspection, adjustment (except carburetor), or repair, discon- nect the wire from the spark plug. ENGINE TIPPING When you serv
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MAINTENANCE 6. Mount the blade with the curved edges to- BLADE SERVICE ward the housing. If the blade is upside WARNING: Before you inspect down, the blade will not cut correctly and the blade or the blade adapter, can cause an accident. disconnect the wire to the spark 7. Fasten the blade with the original wash- plug. If the blade hits an object, stop the ers and bolt. Make sure the outside rims engine. Disconnect the wire to the spark of the Belleville washers are toward the plug. Check the un
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MAINTENANCE CHECK THE LEVEL OF CUT Test the unit in a small area. If the height of cut Blade is not level or if the cut grass is not discharged, the cause can be: (1) the blade is bent or dam- aged, (2) the blade is not sharp, (3) a worn blade, (4) or a broken blade adapter. Before you use the unit, correct the problem. File Screwdriver Blade is balanced when parallel to the ground. Ground Figure 15 5. Make sure the blade is balanced. Use a screwdriver and hold the blade parallel to the ground a
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TROUBLE SHOOTING CHART The Engine will not start. 1. Make sure the fuel tank is filled with clean gasoline. Do not use old gasoline. 2. On a cold engine, push the primer button (optional on some models). For the number of times required to push the primer button, see the engine manufacturer’s instructions. 3. Make sure the wire for the spark plug is connected to the spark plug. 4. Adjust the Carburetor. See the “Engine Instruction Book”. 5. There is too much gasoline in the engine cylinder. Remo
