OWNER'S MANUAL Includes Assembly, Maintenance & Parts Lists For Serial Numbers 1586 & Up HYDRO 70" TRIPLEX NATIONAL MOWER CO. HYD70OM-8/99 700 Raymond Ave., P.O. Box 14299, St. Paul, Minnesota 55114-0299, U.S.A. Phone (651) 646-4079 Fax (651) 646-2887 DECLARATION OF CONFORMITY according to Directive 89/392/EEC We NATIONAL MOWER COMPANY .............................................................................................................................................................. (Name of supplier) 700 Raymond Avenue, St. Paul, Minnesota 55114 U.S.A. .............................................................................................................................................................. (Full address of the manufacturerauthorized representative in the community must also give the business name and address of the manufacturer) declare under our sole responsibility, that the product NATIONAL HYDRO 70" TRIPLEX MOWER (Make and model) to which this declaration relates corresponds to the relevant basic safety and health requirements of the Directive 89/392/EEC, (if applicable) and to the requirements of other relevant Directives: EN292-1&2--EN294--EN349 .............................................................................................................................................................. (Title and/or number and date of issue of the other Directives) (If applicable) For the relevant implementation of the safety and health requirements mentioned in the directives, the following standard(s) and/or technical specification(s) has (have) been respected: ANSI B71.4 .............................................................................................................................................................. (Title and/or number and date of issue of standard(s) and/or technical specification(s)) 8/1/99 .............................................................................................................................................................. (Place and date of issue) (Name, function and signature of the authorized person) 2 HY70OM-8/99 ® NATIONAL HYDRO 70" TRIPLEX IMPORTANT National Mower Safe Operation Practices For Riding Mowers Know control functions and how to stop quickly. READ THE OWNERS MANUAL. Do not allow children to operate the mower. Do not allow adults to operate the mower without proper instruction. Do not carry passengers. Keep children and pets at a safe distance from an operating mower. Clear the work place of objects which might be picked up by the blades and thrown. To start engine, operator must be seated, reel control must be disengaged and foot control must be in neutral. Take all possible precautions when leaving the mower unattended, such as shifting into neutral, stopping the engine and removing the ignition key. Do not stop or start suddenly when going uphill or downhill. Use extreme caution when mowing on slopes. Reduce travel speed on slopes and in sharp turns to prevent tipping or loss of control. Use extreme caution when changing direction on slopes. Watch for holes in the terrain and other hidden hazards. Watch for dangerous traffic when crossing or near roadways. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Never direct the discharge of material from operating reels toward bystanders nor allow anyone near the mower during operation. 12. Handle gasoline with CAUTION - it is highly flammable. a. Use an approved gasoline container. b. Never fill the fuel tank indoors. Wipe spilled gas immediately. c. Open garage doors to allow ventilation if engine is run inside-exhaust fumes are dangerous. Do not run engine in any enclosed area. 13. Keep the mower in good operating condition. Make sure that all safety switches are operating properly and all safety guards are in place at all times, except during servicing. 14. Keep all nuts, bolts and screws tight to be sure that the mower is in a safe working condition. 15. Never store the mower, with gasoline in the tank, inside a building where the fumes could reach an open flame or spark. Allow the engine to cool before storing in any enclosure. 16. Keep the engine free of grass, leaves or excessive grease to reduce a fire hazard. 17. The mower and reels should be stopped and inspected for damage after striking a foreign object. The damage should be repaired before restarting and operating the mower. 18. Do not change the engine governor settings or over speed the engine. 19. Proceed as follows when mowing. a. Mow only in the daylight or in good artificial light. b. Never make a cutting height adjustment while the engine (motor) is running. c. Shut the engine (motor) off when removing grass or unclogging reels. WARNING California, USA residents are required by law (CA PRC 4442 & CA H & SC 13005) to equip their engines with spark arresters when operating in flammable vegitation. Arresters must be obtained from your engine dealer and are not available from National Mower Company. 3 TABLE OF CONTENTS Declaration Of Conformity ............................................................................. 2 Safe Operating Practices .............................................................................. 3 Introduction ................................................................................................... 5 Receipt of Shipment ...................................................................................... 5 Specifications ............................................................................................ 6-9 Engine Specifications ............................................................................ 6 Transmission .......................................................................................... 6 Vehicle Specifications ............................................................................ 6 Battery ................................................................................................... 6 Mower Specifications ............................................................................. 6 Weight and Dimensions ......................................................................... 6 Lubricants .............................................................................................. 6 Disposal Numbers .................................................................................. 7 Noise Emission and Vibration ................................................................. 7 Decals ................................................................................................. 7-8 Assembly Instructions .............................................................................. 9-10 General Information ......................................................................... 11-12 Engine .................................................................................................. 11 Traction Drive Train .............................................................................. 11 Reel Drive ............................................................................................ 11 Ignition Switch ...................................................................................... 11 Hour meter ........................................................................................... 11 Ammeter ............................................................................................... 11 Reel Control ......................................................................................... 11 Choke .................................................................................................. 12 Throttle Lever ....................................................................................... 12 Traction Pedal ...................................................................................... 12 Mow and Lift Treadle ............................................................................ 12 Free Wheeling Valve ............................................................................ 12 Drop/Lift Needle Valve .......................................................................... 12 Interlock Switches ................................................................................ 12 Operation .................................................................................................... 13 Adjustments ................................................................................................. 13 Traction Pedal ...................................................................................... 13 Reel Control Clutch ........................................................................ 13, 14 Seat Switch .......................................................................................... 14 Height of Cut ........................................................................................ 14 Reel to Bedknife ................................................................................... 15 Reel End Play ...................................................................................... 15 Backlapping Procedure .................................................................. 15, 16 Grinding Procedure .............................................................................. 16 Maintenance ............................................................................................... 17 General ................................................................................................ 17 Assembly and Disassembly .................................................................. 17 Battery ........................................................................................... 17, 18 Charging a Battery ............................................................................... 18 Bed Knife Replacement ........................................................................ 18 Fuel filter .............................................................................................. 18 Engine .................................................................................................. 18 Electrical System ................................................................................. 18 Hydraulic Hoses ................................................................................... 19 Hydraulic Oil ......................................................................................... 19 Hydraulic Oil Filter ................................................................................ 20 Handle Bar Removal ............................................................................. 20 Jumper Cables ..................................................................................... 20 4 HY70OM-8/99 ® NATIONAL HYDRO 70" TRIPLEX Lubrication ........................................................................................... 20 Painting ................................................................................................ 20 Belt Replacement ........................................................................... 20, 21 Coupling Alignment .............................................................................. 21 Storage ....................................................................................................... 22 General Instructions ............................................................................. 22 Engine .................................................................................................. 22 Battery ................................................................................................. 22 Tractor ................................................................................................. 22 Tires ..................................................................................................... 22 Starting After Storage ........................................................................... 22 Trouble Shooting Guide ............................................................................... 23 Engine Will Not Start ............................................................................ 23 Tractor Will Not Move ........................................................................... 23 Reel Not Turning ................................................................................... 23 Reel Will Not Cut .................................................................................. 23 Lubrication ..................................................................................... 24, 25 Electrical Schematic ............................................................................. 26 Parts List and Ordering Information ............................................................. 27 Tank and Rear Fork Assembly ....................................................... 28, 29 Steering Tower Assembly ..................................... ...