Ultra Start 72 Series Operator's Manual Page 1

Operator’s ManualRam Ultra 50, 25 KOH / 968999722Ram Ultra 60, 25 KOH / 968999723Ram Ultra 72, 27 KOH / 968999724Ram Ultra 50, 25 KOH BF / 968999725Ra

SAFETY10-DixonWARNING!Engine exhaust and certain vehicle components contain or emit chemicals considered to cause cancer, birth defects, or other repr

SAFETYDixon-11WARNING!When using the machine, approved personal protective equipment (shown in illustrations) shall be used. Personal protective equip

SAFETY12-Dixon8011-509Be extra cautious when driving on slopes8011-517Never allow children to operate the machine8011-518Keep children away from work

SAFETYDixon-13Safe Handling of GasolineTo avoid personal injury or property damage, use extreme care in handling gasoline. Gasoline is extremely amma

SAFETY14-Dixon8011-515Never drive the machine in an enclosed spaceWARNING!The battery contains lead and lead compounds, chemicals that are considered

SAFETYDixon-15Ensure that nuts and bolts, especially the • fastening bolts for the blade attachments, are properly tightened, torqued and that the equ

SAFETY16-DixonWARNING!Escaping hydraulic oil under pressure can have sufcient force to penetrate the skin, causing serious injury. If injured by esca

SAFETYDixon-17Roll over Protection system (ROPS)The ROPS increases the basic weight of the unit by 42 lbs/19 kg. The ROPS is an accessory. Do not use

CONTROLS18-DixonThis operator’s manual describes the Dixon Zero Turn Rider. The rider is tted with a Kohler four-stroke overhead valve engine develop

CONTROLSDixon-198011-789Steering controlsWARNING!The machine can turn very rapidly if one steering control is moved much further forward than the othe

©2008 HTC. All rights reserved.Beatrice, NE. Printed in U.S.A.

CONTROLS20-DixonParking Brake8061-019 Parking brake not activatedIMPORTANT INFORMATIONThe machine must stand absolutely still when applying the parkin

CONTROLSDixon-21Ignition SwitchThe ignition key is placed on the control panel and is used to start and stop the engine.FusesFuses are located on the

CONTROLS22-DixonFuel TankRead the safety instructions before refueling. The machine has one fuel tank, just behind the seat. The tank capacity is 5.7

CONTROLSDixon-23Fuel Shut Off ValveThe fuel shut off valve is located at the left rear of the seat. The valve is off when the handle tab is turned per

CONTROLS24-DixonSeat Adjustment LeverThe seat can be adjusted lengthways. When making adjustments, the lever under the front edge of the seat is moved

OPERATIONDixon-25Read “Safety Instructions” section and following pages, if you are unfamiliar with the machine.TrainingZero turn mowers are far more

OPERATION26-Dixon8061-019 Parking brake not activatedBefore StartingRead the sections Safety Instructions and • Controls before starting the machine.P

OPERATIONDixon-27Move the steering controls outward to the locked (outer) neutral position. Move the throttle to the middle position.8061-001Set the t

OPERATION28-Dixon8011-642Jumper cable connectionWARNING!Lead-acid batteries generate explosive gases. Keep sparks, ame and smoking materials away fro

OPERATIONDixon-29THROTTLECHOKEONOFFBLADESRunningRelease the parking brake by moving the 1. lever downward. NOTE: The mower is equipped with an operat

CONTENTSEnglish-3INTRODUCTION ... 5General ...

OPERATION30-DixonOperating On HillsRead the Safety Instructions “Driving on Slopes” in the “Safety Instructions”.The slowest speed possible should be

OPERATIONDixon-31WARNING!Clear the lawn of stones and other objects that can be thrown out by the blades.WARNING!Never drive the rider on terrain that

OPERATION32-DixonIMPORTANT INFORMATIONLeaving the ignition switch in any other position than “OFF” will cause the battery to be discharged and the hou

OPERATIONDixon-33English-33Moving by HandIMPORTANT INFORMATIONTighten the valve moderately.Do not overtighten the valve when closing. That can damage

MAINTENANCE34-DixonMaintenance ScheduleThe following is a list of maintenance procedures that must be performed on the machine. For those points not d

MAINTENANCEDixon-35Maintenance Before AfterDaily Weekly At least once each yearMaintenance interval in hours25 50 100 300Check/adjust throttle and cho

MAINTENANCE36-DixonBatteryYour mower is equipped with a maintenance free battery and does not need servicing. However, periodic charging of the batter

MAINTENANCEDixon-37Ignition SystemThe engine is equipped with an electronic ignition system. Only the spark plugs require maintenance.For recommended

MAINTENANCE38-DixonEngine Cooling Air IntakeCheck that the engine’s cooling air intake is free from leaves, grass, and dirt. If the cooling air intake

MAINTENANCEDixon-39Replacing Air FilterThe engine is equipped with a replaceable, high density paper air cleaner element and an oiled, foam precleaner

WARNING!Failure to follow cautious operating practices can result in serious injury to the operator or other persons. The owner must understand these

MAINTENANCE40-DixonFuel FilterReplace the line-mounted fuel lter every 100 hours (once per season) or more regularly if it is clogged.Replace the lt

MAINTENANCEDixon-41Parking BrakeVisually check that no damage is found on the lever, cables, or switch belonging to the parking brake. Perform a stand

MAINTENANCE42-DixonDeck BeltPark on a level surface. Apply parking brake.1. Lower the deck into the lowest cutting 2. position.Remove bolts from belt

MAINTENANCEDixon-43Cutting BladesIn order to attain the best mowing effect, it is important that the blades are well sharpened and not damaged.WARNING

MAINTENANCE44-DixonBlade replacementWARNING!Blades are sharp. Protect your hands with gloves and/or wrap blades with a heavy cloth when handling.• Re

MAINTENANCEDixon-45Adjusting the Mower DeckWARNING!Blades are sharp. Protect your hands with gloves and/or wrap blades with a heavy cloth when handlin

MAINTENANCE46-DixonAnti-scalp rollersAnti-scalp rollers are properly adjusted when they are just slightly off of the ground when the deck is at the de

MAINTENANCEDixon-47Cleaning and WashingRegular cleaning and washing, especially under the mower deck, will increase the machine’s life-span. Make it a

LUBRICATION48-DixonGeneralRemove the ignition key to prevent unintentional movements during lubrication.When lubricating with an oil can, it must be 

LUBRICATIONDixon-49Lubricating the CablesIf possible, grease both ends of the cables and move the controls to end stop positions when lubricating. Re

INTRODUCTIONDixon-5CongratulationsThank you for purchasing a Dixon ride-on mower. This machine is built for superior efciency to rapidly mow primaril

LUBRICATION50-DixonIMPORTANT INFORMATIONUsed engine oil is a health hazard and must not be disposed of on the ground or in nature; it should always be

LUBRICATIONDixon-51Engine Oil LevelsCheck the oil level in the engine when the machine is standing level and the engine is stopped. Remove the dipstic

LUBRICATION52-DixonPurging Due to the effects air has on efciency in hydrostatic drive applications, it is critical that it is purged from the system

TROUBLESHOOTINGDixon-53Problem CauseThe engine will not start. • The blade switch is engaged.• The steering controls are not locked in the neutral p

TROUBLESHOOTING54-DixonThe engine overheats.Battery not charging.• Poor contact with battery terminal cable connectors.• Charging lead is disconnect

Dixon-55STORAGEDixon-55Winter StorageAt the end of the mowing season, the machine should be readied for storage (or if it will not be in use for longe

SCHEMATICS56-Dixon20 AMPELECTRICCLUTCHACCESSORYOUTLETENGINEGROUNDWHTGRNWHTBLKRED/BLKRED/BLKYELYELBRNGRYBRNGRNGRNBRNYEL/REDBRNRIGHT MOTIONCONTROL LEVER

TECHNICAL DATADixon-57EngineManufacturer Type PowerLubricationOil capacity excluding lterOil capacity including lterEngine oil (See viscosity diagra

TECHNICAL DATA58-DixonCutting WidthCutting HeightUncut CircleNumber of BladesBlade LengthNose RollersSprung SeatHinged Arm RestsHour MeterBlade Engage

TECHNICAL DATADixon-59EngineManufacturer Type PowerLubricationOil capacity excluding lterOil capacity including lterEngine oil (See viscosity diagra

INTRODUCTION6-DixonGood ServiceDixon’s products are sold all over the world and only in specialized retail stores with complete service. This ensures

TECHNICAL DATA60-DixonCutting WidthCutting HeightUncut CircleNumber of BladesBlade LengthNose RollersSprung SeatHinged Arm RestsHour MeterBlade Engage

TECHNICAL DATADixon-61AccessoriesCollection systemTorque SpecicationsEngine crankshaft bolt 50 ft/lb (67 Nm)• Deck pulley bolts 45 ft/lb (61 Nm)•

62-DixonCONFORMITY CERTIFICATESUSA requirementsLabels are placed on the engine and/or in the engine compartment stating that the machine will fulll t

Dixon-63SERVICE JOURNALActionDate, mtr reading, stamp, signDelivery Service1. Charge the battery.2. Adjust the tire pressure of all wheels to 15 PSI

64-DixonSERVICE JOURNALAfter the First 5-8 Hours1. Change engine oil.ActionDate, mtr reading, stamp, sign

Dixon-65SERVICE JOURNALAction Date, mtr reading, stamp, sign25-Hour Service1. Check the engine air lter.2. Sharpen/Replace mower blades if required

66-DixonSERVICE JOURNALActionDate, mtr reading, stamp, sign50-Hour Service1. Perform the 25-hour service.2. Clean/replace the air cleaner’s lter ca

Dixon-67SERVICE JOURNALAction Date, mtr reading, stamp, sign100-Hour Service1. Perform the 25-hour service.2. Perform the 50-hour service.3. Change

68-DixonSERVICE JOURNALAction Date, mtr reading, stamp, sign300-Hour Service1. Perform the 25-hour service.2. Perform the 50-hour service.3. Perfo

Dixon-69SERVICE JOURNALAction Date, mtr reading, stamp, signAt Least Once Each Year1. Clean the engine’s cooling air intake (25 hours).2. Replace th

SYMBOLS AND DECALSDixon-7These symbols are found on the machine and in the operator’s manual.Study them carefully so that you know what they mean. Use

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SYMBOLS AND DECALS8-Dixon Read Shut off engine and Keep a safe Use on slopes No passengers Operator’s remove key before distance from no gre

SAFETYDixon-9Safety InstructionsThese instructions are for your safety. Read them carefully.IMPORTANT: THIS CUTTING MACHINE IS CAPABLE OF AMPUTATING H