National Mower 68 DL, 68 SR owner manual Introduction, Table of Contents

Models: 68 SR 68 DL

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®

NATIONAL 68 SR & DL TRIPLEX

TABLE OF CONTENTS

 

Warranty

2

Introduction

3

Safety Information

4

Safety and Control Decals

7

Receipt of Shipment

11

Uncrating Instructions

11

Assembly

12

Preparation

14

Operation

14

Maintenance

18

Maintenance Record

26

Troubleshooting

27

Parts List

28

Frame & Running Gear

28

Running Gear & Misc. Parts - 68 DL

30

Seat Mounting & Belt Guards

31

Drive Mechanism - Upper Portion

32

Drive Mechanism - Middle Portion

34

Drive Mechanism - Lower Portion

35

Drive Mechanism - 68 DL

36

Rear Axle & Differential

38

Wing Cutting Units

40

Rear Cutting Unit

42

Skids, Reel End Shields & Guards

44

Roller & Standard Scrapers

45

Roller Scraper Kit, Dial-A-Height™

46

Dial-A-Height™ Roller Adjuster Kit

47

Dial-A-Height™ Adjuster

48

Safety Switches

49

Electrical Diagrams

50

Electrical Parts

51

Specifications

52

Parts Ordering Information

53

Declaration of Conformity

55

INTRODUCTION

This manual has been prepared by National Mower Company as an aid to users in the assembly, safe operation, maintenance, adjustment and ordering re- placement parts. Additional information will gladly be furnished by calling or writing the manufacturer or his authorized agent.

Please furnish us with the Model Number, Serial Number and Date of Purchase when contacting us about your machine. Designations of right, left, front add rear are used as if the operator was sitting in the mower seat.

Before operating mower, carefully and completely read this manual. The contents provide you with an understanding of safety instructions and controls during normal operation and maintenance. Understand all safety precautions provided in the manuals. Review control functions and operation of the mower. Do not operate the mower unless all controls function as described in this manual. Review recommended lubrication, maintenance, and adjustments.

68OM-06/03

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National Mower 68 DL, 68 SR owner manual Introduction, Table of Contents

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.