National Mower 68 SR, 68 DL Specifications, Mower Dimensions & Weight, Sound & Vibration Levels

Page 52

SPECIFICATIONS

MOWER DIMENSIONS & WEIGHT

 

 

 

Overall Length

 

79.13" (201 cm)

Width, Wing Mowers Folded

 

61.8" (157 cm)

Width, Wing Mowers Down

 

76" (193 cm)

Height

 

39.37"(100 cm)

Weight (empty)

 

659 lbs. (299 kg)

ENGINE – BRIGGS & STRATTON 138400 SERIES

 

Engine Type

Forced Air Cooled, 4-cycle, Horizontal Shaft, OHV Engine

Number Of Cylinders

 

One

Piston Displacement

 

13.1 cu. in. (215 cc)

Maximum Horsepower

7.5 hp (5.6 kW)) / 3600 rpm (Corrected per SAE J1349)

Direction Of Rotation

Counterclockwise, facing the power take-off shaft

Maximum Speed

 

3600 ±100 rpm

Fuel

 

Unleaded Gasoline (Petrol)

Fuel Tank Capacity

 

4.80 US qt (4.5 liter)

Maximum Fuel Consumption

 

0.68 gal/hr (2.4 liter/hr)

Oil

 

SAE 30 Engine Oil

Oil Capacity

 

30 fl. oz. (0.90 liter)

Carburetor

 

Float Type with Fixed Main Jet

Starter (68 SR)

Recoil Starter with Automatic Compression Release

Starter (68 DL)

 

Electric Starter and Recoil Starter

Lubrication Type

 

Splash

Air Cleaner

 

Dual Element

Muffler

 

Low Tone Type

Alternator

 

12v 10 A (68 DL)

Net Weight (Engine)

 

47 lbs (21.4 kg)

SOUND & VIBRATION LEVELS

 

 

 

Average Measured Sound Power

..............................................................................

99 dBA

Guaranteed Sound Power

 

105 dBA

Average Measured Sound Pressure, at operator position

87 dBA

Hand-Arm Vibration level

 

3.79 m/sec2 rms

Whole Body Vibration level

 

0.86 m/sec2 rms

52

68OM-06/03

Image 52 Contents
Model 68 SR Triplex Mower Model 68 DL Triplex Mower There is no Other Warranty Expressed or Implied ONE Year Limited WarrantyNational Mower Company Table of Contents IntroductionSafety Information National Mower Safe Operating PracticesTraining Preparation OperationMaintenance ISO Safe Operating PracticesHill Operation TrainingMaintenance and Storage California Safe Operating PracticesSafety and Control Decals Main Engine Clutch LeverSafety and Control Decals Height Adjuster Safety and Control Decals Receipt of Shipment Uncrating InstructionsSeat AssemblyRear Cutting Unit Reel to BED Knife Adjustment Rear Cutting Unit BeltNational 68 SR & DL Triplex Wing Cutting Units EngineOperation PreparationMain Clutch Lever Seat Position Adjuster Lever Transport Clutch Model 68 DL onlyRear Cutting Unit Clutch Wing Cutting Unit Latch Rear Cutting Unit Lift ArmSafety Switches Ignition Switch Model 68 DL shownService Brake Parking Brake LeverHeight of CUT Adjustment Other AdjustmentsStandard Adjusters DIAL-A-HEIGHT Adjuster OptionalMaintenance LubricationLubrication Points Maintenance Lubrication Points Reel Adjustments Reel END Play AdjustmentHeight of CUT Adjustment Brake AdjustmentMain Drive Belt Tension Main Countershaft to Rear Drive Adjusting Drive Belt TensionRear Cutting Unit Drive Belt Tension BED Knife Replacement Rear Cutting Unit Chain TensionBack Lapping Procedure IntroductionRecommended Steps Grinding ReelsMaintenance Record TROUBLE-SHOOTING Situation Things To CheckParts List Frame & Running GearRear Tire & Wheel Assembly Description QtyRunning Gear & MISC. Parts -- Model 68 DL Seat Mounting & Belt Guards WasherDrive Mechanism -- Upper Portion Spring Drive Mechanism -- Middle Portion Drive Mechanism -- Lower Portion Drive Mechanism -- Model 68 DL Needle Bearing Rear Axle & Differential Part No. Description Qty Shifter LeverWing Cutting Units Roller Rear Cutting Unit Countershaft SKIDS, Reel END Shields & Guards Rollers & Standard Scrapers DIAL-A-HEIGHT Roller Scraper KIT, P/N 860033 includes items Description Qty. per KitDIAL-A-HEIGHT Roller Adjuster KIT, P/N DIAL-A-HEIGHT ADJUSTER, P/N 205348 Safety Switches ResponseElectrical Diagrams Electrical PARTS-- Models 68 SR & 68 DL Description Qty Model 68 SR Model 68 DLSpecifications Mower Dimensions & WeightEngine Briggs & Stratton 138400 Series Sound & Vibration LevelsParts Ordering Information Belt CROSS-REFERENCE ChartFunction National Number Belt Mfr Number Declaracion DE Conformidad Déclaration DE ConformitéConformiteitsverklaring Raymond Avenue Box Saint Paul, Minnesota Tel Fax