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National Mower HYDRO 70" TRIPLEX User Manual

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HYDRO 70" TRIPLEX
NATIONAL MOWER CO.
700 Raymond Ave., P.O. Box 14299, St. Paul, Minnesota 55114-0299, U.S.A.
Phone (651) 646-4079  Fax (651) 646-2887
OWNER'S MANUAL
Includes Assembly, Maintenance &
Parts Lists
For Serial Numbers 1586 & Up
HYD70OM-8/99
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National Mower HYDRO 70" TRIPLEX Specifications

General IconGeneral
BrandNational Mower
ModelHYDRO 70" TRIPLEX
CategoryLawn Mower
LanguageEnglish

Summary

Declaration of Conformity

Safe Operation Practices

Riding Mower Safety Guidelines

Key practices for safe operation of riding mowers, including controls, passenger safety, and general precautions.

Introduction and Shipment

Manual Introduction

Provides context and purpose of the owner's manual.

Receipt of Shipment Inspection

Instructions for checking the machine upon delivery for damage or shortages.

Product Specifications

Engine and Transmission Specs

Details on the engine, transmission, and hydraulic system.

Vehicle and Mower Specs

Information on wheels, tires, speeds, controls, reels, and cutting width.

Weight, Dimensions, and Lubricants

Physical characteristics and recommended lubricants for the mower.

Specifications Details

Disposal Numbers and Decals

Part numbers for disposal and identification of mower decals.

Noise Emission and Vibration

Data on sound levels and vibration experienced by the operator.

Transfer Descriptions

Decal and Transfer Locations

Explains the purpose and location of various decals on the mower.

Assembly Instructions

Tractor Assembly Process

Step-by-step guide for assembling the tractor unit, including battery installation.

Rear Cutting Unit Attachment

Instructions for attaching the rear cutting unit to the tractor.

General Information and Controls

Engine and Drive Train Systems

Overview of the engine, traction drive, and reel drive systems.

Operator Controls Overview

Explanation of ignition switch, hour meter, ammeter, and reel control.

Control Operations

Choke, Throttle, and Traction Pedal

How to use choke, throttle, and traction pedals for operation.

Mowing, Lifting, and Free-wheeling

Operation of mow/lift treadle, free-wheeling valve, and needle valve.

Interlock Safety Switches

Details the safety switches that prevent operation under unsafe conditions.

Operation and Adjustments

General Adjustment Precautions

Safety warnings and general guidelines before making adjustments.

Traction Pedal and Reel Clutch Adjustments

Procedures for adjusting the traction pedal and reel control clutch.

Adjustment Procedures

Seat Switch and Height of Cut Adjustment

Adjusting the seat switch and the cutting height.

Reel Adjustments and Procedures

Reel to Bedknife and End Play Adjustment

Adjusting reel contact and bearing end play.

Backlapping Procedure for Sharpening

Method for sharpening reel blades using lapping compound.

Grinding Procedure

Reel and Bedknife Grinding

Instructions for grinding reel blades and bed knife for sharpness.

Maintenance Guidelines

General Maintenance Tasks

Routine cleaning, lubrication, and inspection tasks for the mower.

Battery Maintenance and Handling

Precautions and procedures for battery care, installation, and removal.

Maintenance Procedures

Battery Charging and Bed Knife Replacement

Steps for safely charging the battery and replacing the bed knife.

Hydraulic System Maintenance

Hydraulic Hose Inspection and Oil Service

Guidelines for inspecting hoses and procedures for hydraulic oil.

Maintenance Tasks

Hydraulic Filter, Handle Bar, and Jumper Cables

Procedures for filter replacement, handle bar removal, and jump-starting.

Lubrication, Painting, and Belt Replacement

References for lubrication, touch-up paint, and belt replacement.

Coupling Alignment

Pump and Engine Shaft Alignment

Steps to ensure proper shaft alignment between pump and engine.

Storage Procedures

Engine, Battery, and Tractor Storage Prep

Preparing the engine, battery, and tractor for long-term storage.

Tire Storage and Starting After Storage

Proper tire storage and procedures for starting the mower after storage.

Troubleshooting Guide

Engine and Tractor Movement Issues

Solutions for engine not starting or tractor not moving.

Reel Operation and Cutting Issues

Diagnosing and fixing reel not turning or not cutting properly.

Lubrication Points

Lubrication Schedule and Diagram

Identifies grease points and oiling points for regular maintenance.

Electrical Schematic Diagram

Parts List and Ordering Information

Tank and Rear Fork Assembly Parts

Lists parts for the tank and rear fork assembly.

Steering Tower Assembly Parts

Lists parts for the steering tower assembly.

Engine and Footrest Assembly Parts

Lists parts for the engine and footrest assembly.

Traction Pedal and Pump Assembly Parts

Lists parts for the traction pedal and pump assembly.

Lift Arm and Drive Assembly Parts

Lists parts for the lift arm and drive assembly.

Cutting Unit Assembly Parts

Lists parts for front and center cutting units.

Hydraulic Hose and Fitting Parts

Lists hydraulic hoses, lines, and fittings with part numbers.

Kit Parts and Assemblies

Lists parts for basket, belt tool, height of cut bar, and scrapers.

Pump, Motor, Valve, and Cylinder Parts

Lists parts for pump, wheel motor, lift valve, and lift cylinder.

Limited Warranty Information

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