Harper DEWEZE ATM 72LC Operator's Manual
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Harper DEWEZE ATM 72LC Operator's Manual

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S/N 04A21 AND ABOVE
S/N 04A21-04A40

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Summary of Contents for Harper DEWEZE ATM 72LC

  • Page 1 S/N 04A21 AND ABOVE S/N 04A21-04A40...

  • Page 3: For Your Records

    DewEze or at the manu- facturing plant in Harper, Kansas, of such part or parts, as inspection shall disclose to have been defective. This warranty does not apply to defects caused by damage or unreason-...
  • Page 4 The objective of Harper Industries, Inc. in the design of the ATM 72LC was to create a mowing machine that can function safely and comfortably on slopes and inclines. The result is a mowing machine that will automatically adjust itself to keep the operator in a vertical position on all slopes up to 34 degrees.
  • Page 5 Section 1 Safety & Operation...

  • Page 6: Control Identification

    CONTROL IDENTIFICATION...

  • Page 7: Pre-Start Instructions

    PRE-START INSTRUCTIONS BEFORE STARTING: Be sure the engine is properly filled with oil and fuel. CRANKCASE OIL: Fill the crankcase with an oil that meets the API (American Petroleum Institute) service designation CE/SF. Do not mix brands or grades of motor oil. Recommended oil viscosity for expected temperatures are listed in the service schedule on page 3.1.
  • Page 8 DRIVING THE DEWEZE ATM 72LC Driving the DewEze ATM 72LC with the automatic leveling device will be a new and different experience. After several minutes of driving, the smooth control and sturdy feel will become comfortable to you. The security of always sitting upright and the feel of powerful, positive traction will give you confidence and comfort in most mowing situations.

  • Page 9: Operating Tips

    OPERATING TIPS: 1. Read safety decals. 2. Always check engine oil and hydraulic oil before starting. 3. Make sure you have plenty of fuel. 4. Visually check tires. 5. Adjust seat to a comfortable position. 6. Always use good judgment when using this machine. 7.
  • Page 10 PARAMETERS FOR GRASS CUTTING WITH THE ATM 72LC: The principal objective when mowing is to achieve the highest quality cut with the greatest efficiency. However, there are many environmental conditions that work to diminish the capacity of the machine to achieve this goal. The variables include: type, density, length and moisture content of the vegetation.

  • Page 11: Deck Lift Adjustment

    DECK LIFT ADJUSTMENT STEP 1: With motor running use the STEP 2: When the deck is at the deck lift switch to obtain the desired desired center height, set the pin and center height. bushing in the closest hole and let the deck down so that it rests on the stops.

  • Page 12: Seat Adjustment

    SEAT ADJUSTMENT 1. The lever with the yellow handle controls chair’s horizontal movement. 2. The round knob adjusts the ride quality. Turn the knob clock-wise for a firmer ride, and counter-clock- wise for a softer ride. Adjust screw to change the Adjust safety tether to allow proper seat angle of the arm rests.

  • Page 13: Tow Valve

    TOW VALVE IMPORTANT! THE TOW VALVE MUST BE OPENED BEFORE THE UNIT IS TOWED TO AVOID DAMAGE TO THE HYDRAULIC PUMPS. TOW VALVE LOCATION: The Tow Valve is located behind the right front cowling. The Tow Valve is accessible for adjustment through a small hole located in the cowling for this purpose.

  • Page 14: Level Adjustment

    LEVEL ADJUSTMENT The manual over-ride switch located on the instrument panel is used to lean the mower from side to side as labeled. The box at the rear of the mower encloses the mercury switches that keep the machine level when the automatic leveling switch is on.

  • Page 15: Neutral Adjustment

    NEUTRAL ADJUSTMENT If the machine creeps forward or backwards when pedal is in neutral postion, the neutral adjustment must be made. TO ADJUST: 1. Remove the right side cowling. (The neutral adjustment is located behind the cowling and above the propulsion pump) 2.
  • Page 16 1.11...
  • Page 17 WARNING: REPLACE ALL DAMAGED OR MISSING DECALS 1.12...

  • Page 19: Maintenance

    Section 2 Maintenance...
  • Page 20 SERVICE PA ATM 72LC FILTERS Engine Air Filt er______________________ Deweze # 840027 Engine Oil Filter ______________________ Deweze # 820220 Engine Fuel Filt er _____________________ Deweze # 842012 Engine Fuel/Water_____________________ Dewzez # 852003 Hydraulic R eturn Fil l ter__________________ Deweze # 822002 Propulsion Pump Fi lter__________________Deweze # 220559 Hydraulic Tank Vent Fi lter______________ Deweze # 822018 BELTS...

  • Page 21: Service Parts

    SERVICE PARTS ATM 72LC TIRES AND WHEELS Stabilizer W heel Assy._ __________________________Deweze # 800057 Caster Wheel Ass y._____________________________ Deweze # 800093 Dri ve Tire ___ _________________________________ Deweze # 800114 Dri ve Wheel (Ri m) _____________________________ Deweze # 500181 Drive Tire a nd Whee l Assy . ______________________Deweze # 800126...

  • Page 22: Hydraulic Breather

    Hydraulic Breather 1. Change breather whenever hydraulic filter is serviced Breather part number: 822018 Hydraulic breather Hydraulic Filter 1. Change hydraulic filter whenever filter indicator needle runs in the red area. NOTE:Check gauge when oil is at operating temperature. Hydraulic Filter (Part No. 822002) Breather Cap Filter indicator...
  • Page 23 SERVICE POINTS - YANMAR ENGINE -RIGHT SIDE (TNV SERIES) Fuel Filter Fuel/Water Separator Engine Oil Dipstick Engine Oil Filter Engine Oil Fill Radiator Fluid Overflow...
  • Page 25 72LC Service Schedule Disclaimer-On engine applications YANMAR Diesel Engine Co. recommends the following: Daily Check Engine oil level....Use HD 15-40, HD 10-40 if below 40°F (19°C) Check Hydraulic oil level....Use HD 15-40 or HD 10-40 motor oil (HD 15-40 SUPPLIED FROM FACTORY) Check fuel level......Use Clean #2 Diesel Visually inspect ......Fan Belt, bolts, fittings, and hoses (for signs of leaks or looseness) Check Coolant Level......Between Low and Full, 50% Ethylene glycol...
  • Page 28 DECK LIFT PROCEDURE STEP 1: Set the parking brake and engine half throttle. automatic leveling switch to OFF. STEP 2: Get off machine and lean mower right using the manual over- ride switch as shown. STEP 3: Mower should be leaned all the way to the right at this time.
  • Page 29 STEP 4: Close the leveling cylinder valve. Turn the knob or lever clock- wise until completely closed. STEP 5: Push and hold the manual over-ride switch to the left until the left deck is raised far enough to access the blades. STEP 6: FOR YOUR SAFETY place a jack stand or comparable support under the deck as shown.
  • Page 30 STEP 7: Remove the support from under the deck. Push manual over- ride switch to the right to set the deck back down on the ground. STEP 8: Completely open the valve on the right leveling cylinder. Turn the knob or lever counter-clockwise until it is completely open.
  • Page 31 2.11...
  • Page 32 Section 3 Frame & Assemblies...
  • Page 42 3.10...
  • Page 43 3.11...
  • Page 44 3.12...
  • Page 45 3.13...
  • Page 46 3.14...

  • Page 48: Hydraulic Systems

    Section 4 Hydraulic Systems...
  • Page 58 4.10...
  • Page 59 4.11...
  • Page 60 4.12...
  • Page 61 4.13...
  • Page 62 4.14...
  • Page 63 4.15...
  • Page 64 4.16...
  • Page 65 4.17...
  • Page 66 4.18...
  • Page 67 4.19...

  • Page 68: Electrical System

    Section 5 Electrical System...
  • Page 75 Section 6 Engine and Cooling...

  • Page 83: Technical Specifications

    Section 7 Technical Specifications...
  • Page 84 72LC Specifications / SN 04A21+ Engine ……………………………Yanmar 3TNV82A Number of Cylinders…….…. 3 Bore x Stroke in (mm)……… 3.23 x 3.31 (82 x 84) Displacement cu.in /(cc)……. 81.22 / (1331) Compression Ratio…………..18.0:1 Lubricating System………… Forced / Trochoid pump Cooling / Capacity …………. Radiator / 1.5 gal. (5.7 liters) Firing Order ………………..
  • Page 85 Hydraulic Filters Return (10 Micron) …………. DewEze 822002 Propulsion Pump Filter ………DewEze 220559 System Pressures Deck …………………………. 3000 PSI (20,685 kPA) Propulsion ……………………. 3750 PSI (25,856 kPA) Leveling/ Steering …………… 1200 PSI (8,274 kPA) Accumulators ………………... ½ pt @475 PSI Charge (.473 liters@3275@kPA) Tires Drive …………………………...
  • Page 86 Notes...
  • Page 87 Notes...
  • Page 88 HARPER INDUSTRIES, INC 151 E. HWY. 160 Harper, KS 67058 Phone: (620)896-7181 Fax: (620)896-7129 www.deweze.com...

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04a21-04a40

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