TABLE OF CONTENTS

Declaration Of Conformity

2

Safe Operating Practices

3

Introduction

5

Receipt of Shipment

5

Specifications

6-9

Engine Specifications

6

Transmission

6

Vehicle Specifications

6

Battery

6

Mower Specifications

6

Weight and Dimensions

6

Lubricants

6

Disposal Numbers

7

Noise Emission and Vibration

7

Decals

7-8

Assembly Instructions

9-10

General Information

11-12

Engine

11

Traction Drive Train

11

Reel Drive

11

Ignition Switch

11

Hour meter

11

Ammeter

11

Reel Control

11

Choke

12

ThrottleLever

12

Traction Pedal

12

Mow and Lift Treadle

12

Free Wheeling Valve

12

Drop/Lift Needle Valve

12

Interlock Switches

12

Operation

13

Adjustments

13

Traction Pedal

13

Reel Control Clutch

13, 14

Seat Switch

14

Height of Cut

14

Reel to Bedknife

15

Reel End Play

15

Backlapping Procedure

15, 16

Grinding Procedure

16

Maintenance

17

General

17

Assembly and Disassembly

17

Battery

17, 18

Charging a Battery

18

Bed Knife Replacement

18

Fuel filter

18

Engine

18

Electrical System

18

Hydraulic Hoses

19

Hydraulic Oil

19

Hydraulic Oil Filter

20

Handle Bar Removal

20

Jumper Cables

20

4

HY70OM-8/99

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National Mower HYD70OM-8/99, HY70OM-8/992 owner manual Table of Contents