National Mower 68 DL, 68 SR owner manual Countershaft

Page 43

68OM-06/03

REAR CUTTING UNIT

Item

Part No.

Description

Qty.

 

 

 

 

1

09170

GUARD, Clutch, Rear Mower, '96 and up

1

2

201513

BRACKET, Shield

2

_____3_______________200235___________UPRIGHT,__Shield_________________________________________________________2____

4

204498

ROLLER

1

5

204495

ADJUSTER, Roller Bracket

2

_____6______________203248____________ROLLER__BRACKET,___L_._H_.__________________________________________1____

7

200109

PULL YOKE, Rear Mower

1

8

200236

REEL TAKE-UP ASSEMBLY

2

_____9_______________200256___________ADJUSTING__SCREW__&___NUT,__Bearing____________________2____

10

200237

PIVOT TUBE, Rear Mower

1

11

200263

COUNTERSHAFT

1

___12_______________06006______________BUSHING,__Countershaft_______________________________________________2____

13

201735

REEL CARRIER ASSEMBLY, Right Hand

1

14

201437

TAKE-UP, Reel Bearing

2

___15_______________200261____________HOUSING,__Countershaft,___Rear___Mower_____________________1____

16

03116

SPROCKET, Countershaft

1

17

04008

PIN, Sprocket Hub, 5/16" x 1-1/8"

1

___18_______________03115______________SPROCKET,__Reel__________________________________________________________1____

19

200241

REEL ASSEMBLY, Rear Mower, 6 Blade

1

20

06120

BEARING, Reel

2

_____________________06121______________CUP,___Reel___Bearing________________________________________________________2____

21

02109

SCREW, Bed Knife

9

 

 

(sold as a set with nut below)

 

_____________________201802____________NUT,___Bed__Knife___Screw_______________________________________________________

22

201773

BED KNIFE FRAME ASSEMBLY, Rear Mower

1

23

201407

BED KNIFE, 30"

1

___24_______________04549______________SPRING,__Adjusting_________________________________________________________2____

Item

Part No.

Description

Qty.

 

 

 

 

25

302550

REEL CARRIER ASSEMBLY, Left Hand

1

26

200223

FRAME, Rear Mower

1

27 07481 CHAIN, Roller, Rear Mower1

________________________________________________________________________________________________________________________________________________

28

203452

LIFTER TEE, Rear Mower

1

29

200214

BRACKET, Guard

1

30 202301 BRACE, Seat1

_______________________________________________________________________________________________________________________________________________

31

200271

SHIFTER YOKE, Rear Mower

1

32

03905

BELT, Rear Mower, A42

1

___33__________________200388_________________________SHIFTER___________________LUG_______________________________________________________________________1______

34

05022

PIN, Clutch

2

35

200273

BRACKET, Clutch Lever

1

___36___________________202438_________________________SPRING____________________________________________________________________________________________1______

37

200276

LEVER, Clutch Shifter

1

38

07022

GRIP, Shifter Clutch

1

___39___________________02602_________________________DUST_____________CAP,___________3/4"________I.D.____________________________________________________________1______

40

04506

SPRING, Clutch

1

41

200266

CLUTCH, Sliding Jaw, Rear Mower

1

42 200264 PULLEY ASSEMBLY, Countershaft1

_______________________________________________________________________________________________________________________________________________

43

06007

BUSHING, Countershaft Pulley

1

44

200123

BUSHING, Pull Yoke

2

___45__________________203172_________________________ROLLER__________________BRACKET,______________________R.H.__________________________________________________1______

46

04504

SPRING, Idler

1

47

200115

IDLER ARM UNIT, Rear Mower

1

48 03607 PULLEY, Idler1

_______________________________________________________________________________________________________________________________________

49

201519

SHIELD, Rear Mower

1

_______________________________________________________________________________________________________________________________________

® NATIONAL 68 SR & DL TRIPLEX

43

Image 43
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 Introduction Table of ContentsOperation Safety InformationNational Mower Safe Operating Practices Training PreparationTraining MaintenanceISO Safe Operating Practices Hill OperationCalifornia Safe Operating Practices Maintenance and StorageMain Engine Clutch Lever Safety and Control DecalsSafety and Control Decals Height Adjuster Safety and Control Decals Uncrating Instructions Receipt of ShipmentSeat AssemblyRear Cutting Unit Engine Reel to BED Knife AdjustmentRear Cutting Unit Belt National 68 SR & DL Triplex Wing Cutting UnitsOperation PreparationMain Clutch Lever Wing Cutting Unit Latch Rear Cutting Unit Lift Arm Seat Position Adjuster LeverTransport Clutch Model 68 DL only Rear Cutting Unit ClutchParking Brake Lever Safety SwitchesIgnition Switch Model 68 DL shown Service BrakeDIAL-A-HEIGHT Adjuster Optional Height of CUT AdjustmentOther Adjustments Standard AdjustersLubrication MaintenanceLubrication Points Maintenance Lubrication Points Brake Adjustment Reel AdjustmentsReel END Play Adjustment Height of CUT AdjustmentMain Drive Belt Tension Main Countershaft to Rear Drive Adjusting Drive Belt TensionRear Cutting Unit Drive Belt Tension Rear Cutting Unit Chain Tension BED Knife ReplacementGrinding Reels Back Lapping ProcedureIntroduction Recommended StepsMaintenance Record Situation Things To Check TROUBLE-SHOOTINGFrame & Running Gear Parts ListDescription Qty Rear Tire & Wheel AssemblyRunning Gear & MISC. Parts -- Model 68 DL Washer Seat Mounting & Belt GuardsDrive Mechanism -- Upper Portion Spring Drive Mechanism -- Middle Portion Drive Mechanism -- Lower Portion Drive Mechanism -- Model 68 DL Needle Bearing Rear Axle & Differential Shifter Lever Part No. Description QtyWing Cutting Units Roller Rear Cutting Unit Countershaft SKIDS, Reel END Shields & Guards Rollers & Standard Scrapers Description Qty. per Kit DIAL-A-HEIGHT Roller Scraper KIT, P/N 860033 includes itemsDIAL-A-HEIGHT Roller Adjuster KIT, P/N DIAL-A-HEIGHT ADJUSTER, P/N 205348 Response Safety SwitchesElectrical Diagrams Description Qty Model 68 SR Model 68 DL Electrical PARTS-- Models 68 SR & 68 DLSound & Vibration Levels SpecificationsMower Dimensions & Weight Engine Briggs & Stratton 138400 SeriesParts 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

68 SR, 68 DL specifications

The National Mower 68 DL and 68 SR are two outstanding models in the world of lawn care, engineered for efficiency and ease of use. Both mowers offer a range of features tailored to meet the needs of both residential and commercial users, making them popular choices among landscapers and homeowners alike.

The National Mower 68 DL is designed with durability and performance in mind. It features a robust steel deck that enhances longevity while providing a clean and even cut. Equipped with a powerful engine, the 68 DL delivers high torque and swift acceleration, enabling users to tackle even the toughest grass and rough terrain effortlessly. The mower's advanced cutting system ensures that grass is cut finely and evenly, reducing the need for additional clean-up.

On the other hand, the National Mower 68 SR offers a self-propelled option, allowing users to move with ease across various landscapes. This model incorporates hydrostatic transmission technology, which provides smooth, variable speed control. This feature is particularly beneficial for those who demand precision in their mowing tasks, as it allow for adjustments on the fly, catering to changing terrain conditions.

Both models come with adjustable cutting height options, offering users the flexibility to choose their desired grass length. The easy-to-use lever enables quick and simple adjustments without needing tools, making the mowing process more efficient. Additionally, both the 68 DL and 68 SR are designed with ergonomics in mind, featuring comfortable handles and intuitive controls that minimize operator fatigue.

Safety is another critical consideration in the design of the National Mower 68 series. Both models come equipped with protective shields and safety switches to prevent accidental starts, ensuring that users can operate the machines with confidence.

For convenience, the mowers also feature large, easy-roll wheels that enhance maneuverability. The inclusion of a bagging system offers an option for collection of grass clippings, contributing to a cleaner lawn appearance post-mowing.

In summary, the National Mower 68 DL and 68 SR combine advanced engineering with user-friendly features that prioritize performance and safety. They are exceptional choices for anyone looking to maintain a pristine lawn with minimal effort, making yard work a more enjoyable task. Whether for home use or professional landscaping, these mowers stand out in their class, delivering reliable performance time after time.