National Mower HYD70OM-8/99, HY70OM-8/992 owner manual Specifications

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3—SPECIFICATIONS

3.1—ENGINESPECIFICATIONS

TYPE: Twin Cylinder, Air Cooled

ENGINE MODEL: Briggs & Stratton Vanguard

HORSEPOWER: 11.9 kw (16 hp)

COOLING: Ducted air flow

3.2—TRANSMISSION

TRACTIONDRIVE: Direct coupled variable displacement hydraulic pump with high torque wheel motors.

OIL TANK:

18.9 L (5 gallon) capacity

3.3—VEHICLESPECIFICATIONS

FUEL TANK: 18.9 L (5 gallon) capacity

WHEELS AND TIRES:

Front: 20-10 x 8.00 Tubeless Turfmate

Rear: 18-8.50 x 8.00 Tubeless Turfmate TIRE PRESSURE: 10-12 PSI

FRAME: Welded steel construction

MOWING SPEED: 0- 12 K/H (0 - 7.5 MPH)

TRANSPORT SPEED: 12 K/H (7.5 MPH)

REVERSE SPEED: 3 K/H (2 MPH)

CONTROLS:

Foot operated traction pedal for forward and reverse.

Hand operated choke and throttle levers.

Foot operated hydraulic lift with auto start/stop feature.

Hand operated reel engagement lever. Free-wheeling valve.

3.4—BATTERY

TYPE: Group U1 Type GT

NOMINAL VOLTAGE: 12V

DIMENSIONS: L: 7-3/4”(19.68 cm) x W: 5-3/16” (13.17 cm) x H: 7-5/16”(18.5 cm)

3.5—MOWERSPECIFICATIONS

NUMBER AND SIZE: 3 – 25" Reels

REEL DIAMETER: 7" (17.8 cm)

BEARINGS: Timken Tapered Roller

BLADES: Six Alloy Steel Blades

HEIGHT OF CUT: Adjustable: 1/2” to 2" (1.3 cm to 5.08 cm)

OVERALL CUTTING WIDTH: 70" (177.8 cm)

HEIGHT ADJUSTMENT: Roller Screw Adjustment

BEDKNIFE ADJUSTMENT: Screw adjustment of reel to bedknife.

REEL FLOATATION: Front and Rear Roller with Cutting

Unit Center-line Pivot.

3.6—WEIGHT & DIMENSIONS

OVERALL LENGTH: 86-3/8" (219.4 cm)

OVERALL HEIGHT: 44-3/4" (113.6 cm)

WHEEL BASE: 50-3/4" (128.9 cm)

WHEEL TREAD WIDTH: 45" (114.3 cm) (center of tires)

OVERALL WHEEL WIDTH: 55" (139.7 cm)

OVERALL WIDTH: 75" (190.5 cm)

WORKING WEIGHT: 1, 085 lbs. (492 kg)

3.7—LUBRICANTS

ENGINE OIL:

Use high-quality detergent oil API (American Petroleum Institute) service class SF. Select the viscosity based on the air temperature at the time of operation as shown in the table.

Recommended SAE Oil Viscosity Grades

HYDRAULIC SYSTEM OIL:

Use ISO GRADE 100 (SAE 30W) Hydraulic Oil

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HY70OM-8/99

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Contents Hydro 70 Triplex Declaration of Conformity Raymond Avenue, St. Paul, Minnesota 55114 U.S.ANational Mower Safe Operation Practices For Riding Mowers Table of Contents Introduction Receipt of ShipmentSpecifications Disposal Numbers TransfersNoise Emission & Vibration Transfer Description Tractor Assembly Assembly InstructionsAssembly Assembly of Rear Cutting Unit to TractorAssembly of Rear Cutting UNIT, General Information Throttle Lever Interlock SwitchesChoke DROP/LIFT Needle ValveTraction Pedal Adjustment AdjustmentsAdjustments Reel Control Clutch AdjustmentAdjustment Seat Switch AdjustmentHeight of CUT Adjustment Reel Control ClutchReel to Bedknife Adjustment Reel END Play AdjustmentBacklapping Procedure Grinding Procedure Backlapping ProcedureMaintenance General MaintenanceAssembly & Disassembly Maintenance Charging a BatteryBED Knife Replacement Fuel FilterHydraulic Hoses Hydraulic OILHandle BAR Removal Belt ReplacementHydraulic OIL Filter Jumper CablesBelt Replacement Coupling AlignmentTractor StorageGeneral Instructions TiresReel will not CUT Trouble Shooting GuideEngine will not Start Tractor will not MoveLubrication National Hydro 70 Triplex Reel Control Parts List Ordering InformationHY70OM-8/99 Tank and Rear Fork Assembly Description QtyHY70OM-8/99 Steering Tower Assembly HY70OM-8/99 Engine and Footrest Assembly KnobHY70OM-8/99 Traction Pedal and Pump Assembly Part No. Description Qty. ItemHY70OM-8/99 Lift ARM and Drive Assembly HY70OM-8/99 Front Cutting Unit Assembly SKIDBAR, L.HHY70OM-8/99 Center Rear Cutting Unit Assembly Side PLATE, L.HPump Wheel Motor Filter Lift Hydraulic Hose and Line Assembly Pump Wheel Motor Filter Lift Tank Hydraulic Fitting Assembly Basket Assembly Kit No Belt Tool KIT KIt NoHeight of CUT BAR Kit No Pump Part NoWheel Motor Part Nos , 07388 Lift Valve Part NoLift Cylinder Part No Front Roller Scraper KIT Part NoRear Roller Scraper KIT Part No Valve Block Part NoNational Mower Company National Mower CompanyRaymond Avenue, St. Paul, Minnesota 55414, U.S.A