Stiga ZT 3107 T

ZT 3107 T
2017-2019
WORKSHOP MANUAL

Stiga ZT 3107 T Specifications

General

Brand	Stiga
Model	ZT 3107 T
Category	Lawn Mower
Language	English

Summary

1 - Introduction

1.1 Consultation Guide

Provides guidance on manual usage, responsibilities, structure, and symbols for effective understanding.

1.1.1 Limitation of Responsibility

States the author's limited liability for errors, inaccuracies, or modifications made to the product.

1.1.2 Structure of the Manual

Explains the manual's organization into chapters, paragraphs, and sub-paragraphs, including cross-references.

1.1.3 Symbols and Definitions Used

Details important symbols, safety terminology, spatial references, and abbreviations used throughout the manual.

1.2 Work Safety Instructions

Outlines essential safety precautions, operator qualifications, and preparation steps for performing maintenance.

1.2.1 Qualification of Operators

Specifies that only qualified mechanics familiar with safety regulations should perform maintenance and repairs.

1.2.2 Preparing to Work

Emphasizes the importance of a clean work area, organized parts, and gathered tools for efficient repairs.

1.2.3 Precautions During Servicing

Lists recommended precautions like removing the ignition key, using protective gloves, and checking for fuel leaks.

1.2.4 Safety Measures to be Adopted

Details checks on safety microswitches, covers, and labels to ensure the machine's safety systems remain functional.

1.3 Service Centre Procedures

Covers procedures for service centers, including machine registration, warranty interventions, and spare parts.

1.3.1 Machine Registration

Outlines the process for activating the warranty by completing and returning the machine registration card.

1.3.2 Interventions Under Warranty

Explains how warranty interventions are acknowledged and processed according to contract terms.

1.3.3 Exceptions to the Use of the Warranty

Lists damages and misuse not covered by warranty, such as lack of knowledge, carelessness, or non-genuine parts.

1.3.4 Service Repairs Outside Warranty

Describes the requirement for service centers to report details of repairs performed outside the warranty period.

1.3.5 Fault Notification

Encourages users to notify the manufacturer of recurring faults for inspection and corrective action.

1.3.6 Spare Parts Requests

Provides instructions on how to correctly request spare parts, referencing code numbers and exploded charts.

1.3.7 Non-Original Spare Parts

Warns that using non-original parts can adversely affect performance, safety, and void the warranty.

2 - Servicing Recommendations

2.1 Identification of the Machine and Components

Details how to identify the machine, engine, and transmission units using labels and serial numbers for reference.

2.1.1 Machine Identification

Explains that a label provides technical specifications, model, and serial number for repairs and parts orders.

2.1.2 Engine Identification

Describes how the engine's serial number uniquely identifies its specific product and technical specifications.

2.1.3 Transmission Unit Identification

Guides on identifying transmission units by their serial numbers, which are essential for spare parts or information requests.

2.2 Equipment Required

Lists the basic and special tools necessary for servicing operations, including specific screwing and torque tools.

2.2.1 Basic Equipment

Mentions standard tools and the benefit of a lifting platform for performing interventions in the machine's lower area.

2.2.2 Special Equipment

Recommends using a measuring instrument or extensible abutments to facilitate checking the alignment of the blades.

2.2.3 Screwing and Torque Tightening Tools

Details the use of inch-specific tools and provides a table for screw/nut sizes and necessary tightening torques.

2.3 Transportation and Handling

Provides essential safety instructions for loading, transporting, and handling the machine to prevent damage or accidents.

2.3.1 Machine Transportation

Advises on properly securing the machine chassis to transport vehicles and avoiding fastening to easily damaged parts.

2.3.2 Front Lifting

Describes the procedure for safely lifting the front of the machine using a jack and stands to access components.

2.3.3 Rear Lifting

Explains how to safely lift the rear of the machine using wedges, a jack, and stands for maintenance access.

2.4 Maintenance

Covers criteria for performing maintenance and outlines detailed routine maintenance schedules for regular upkeep.

2.4.1 Criteria for Maintenance

Emphasizes the need for a routine maintenance schedule to keep the machine in perfect working order.

2.4.2 Routine Maintenance Schedules

Presents a table detailing operations, intervals (hours/seasonally), and actions for routine machine maintenance.

2.4.3 Control of Safety Devices

Stresses the importance of maintaining safety systems, including electric devices and safety labels, in efficient working order.

3 - Technical Data

3.1 Technical Specifications

Lists detailed technical specifications of the Stiga ZT 3107 T model, including dimensions, weight, engine, and transmission.

3.2 Overall Dimensions

Provides a visual representation with key dimensions of the Stiga ZT 3107 T machine.

4 - Engine and Fuel Tank

4.1 Engine

Covers engine tuning, maintenance, and detailed procedures for engine removal from the machine.

4.1.1 Engine Tuning and Maintenance

Refers to manufacturer manuals for engine adjustments, maintenance, and component replacement procedures.

4.1.2 Removal of the Engine

Provides a step-by-step guide for safely removing the engine, including disconnecting cables and fasteners.

4.2 Tank

Details general information about the fuel tank and the procedure for its removal from the machine.

4.2.1 General Information

Explains that the fuel tank must be removed to access the hydrostatic transmission control unit's shock absorber.

4.2.2 Removal of the Fuel Tank

Offers a detailed procedure for safely emptying and removing the fuel tank, including disconnecting the fuel pipe.

5 - Steering System - Transmission - Wheels

5.1 Steering System (Direction of Travel)

Explains the independent steering system and how to adjust levers for ergonomic fit and straight travel.

5.1.1 General Information

Describes the machine's independent transmission units and how they control rear wheels for differentiated steering.

5.1.2 Ergonomic Adjustment of the Levers

Details how to adjust lever height, longitudinal position, and distance for driver comfort and proper alignment.

5.1.3 Adjusting the Direction of Travel

Provides steps to correct machine deviation for straight forward movement by adjusting steering lever response.

5.2 Transmission

Covers adjustments and replacement procedures for the transmission system, including neutral, speed, belts, and units.

5.2.1 Adjusting the Neutral System and Parking Brake

Explains how to adjust the neutral return mechanism on the transaxle and calibrate the parking brake.

5.2.2 Adjusting Maximum Operating Speed

Details how to adjust the maximum forward speed by modifying the centre distance of the connection rod.

5.2.3 Replacing the Shock Absorber

Guides on replacing shock absorbers that return control levers to the neutral position.

5.2.4 Replacing the Transmission Belt

Provides instructions for replacing the transmission belt, including disconnecting the blade control belt and clutch.

5.2.5 Removing the Transmission Units

Details the step-by-step process for safely removing the transmission units from the machine.

5.3 Wheels and Tyres

Covers procedures for removing, replacing, and repairing wheels and tyres on the machine.

5.3.1 Removing and Replacing the Rear Wheels

Explains how to safely remove and replace the rear wheels, noting the screw fixing them to the shaft.

5.3.2 Replacing the Front Wheels

Details the procedure for removing and replacing the front wheels, including spacer and bearing greasing.

5.3.3 Replacing the Front Wheels Pin Bushings

Guides on removing the front guard and fork to replace the front wheels' pin bushings.

5.3.4 Replacement and Repair of Tyres

Advises on tubeless tyre repair by specialists and emphasizes maintaining consistent tyre pressure after replacement.

6 - Cutting Deck

6.1 Adjusting the Cutting Deck

Explains how to adjust the cutting deck for optimal grass cutting performance and even grass movement.

6.1.1 General Information

Describes conditions for correct cutting deck alignment, including blade height relative to the ground.

6.1.2 Adjusting the Blade Height

Provides steps to check tyre pressure and bring the cutting deck to its highest position for height adjustment.

6.2 Blade Maintenance

Covers procedures for accessing, checking, and maintaining the cutting blades for optimal performance.

6.2.1 Access to the Lower Section of the Cutting Deck

Details how to lift the machine's front part to gain easier access to the cutting deck's underside for maintenance.

6.2.2 Checking Blade Alignment

Explains how to check the alignment of the three cutting blades by measuring the gap between their edges.

6.2.3 Checking Blade Condition

Advises on carefully inspecting blades for breakages, deformations, or cracks, emphasizing replacement over repair.

6.2.4 Removing and Reassembling the Blades

Provides instructions for removing and reassembling cutting blades, including tightening the central nut to a specific torque.

6.2.5 Sharpening and Balancing the Blades

Guides on sharpening cutting edges and balancing blades to prevent vibration and ensure grass collection.

6.3 Replacement Procedures

Covers specific procedures for replacing key components within the cutting deck system.

6.3.1 Blade Control Belt Replacement

Details the step-by-step process for removing and replacing the blade control belt on the cutting deck.

6.3.2 Replacement of the Blade Flanged Supports

Explains how to remove and replace the blade flanged supports from the upper part of the cutting deck.

6.4 Removal of the Cutting Deck

Covers general information and procedures for removing and reassembling the entire cutting deck.

6.4.1 General Information

Explains that removing the cutting deck facilitates servicing of blade supports and drive systems.

6.4.2 Removal and Reassembly of the Cutting Deck

Provides a step-by-step guide for safely removing and then reassembling the cutting deck.

7 - Electrical System

7.1 Troubleshooting

Offers guidance for diagnosing and resolving common problems within the machine's electrical system.

7.1.1 Electrical System Problem Table

A table listing common electrical issues, their likely causes, and the necessary remedial actions.

7.1.2 Safety Device Intervention Table

Details how safety devices prevent engine ignition or operation based on machine conditions.

7.1.3 Equipment

Lists specialized tools and consumable materials required for performing electrical repair work.

7.1.4 Electrical Measure Gauges

Explains the types and usage of electrical measurement tools like voltmeters, ammeters, and ohmmeters.

7.1.5 Electrical Measurements

Outlines the fundamental rules and procedures for taking voltage, current, and resistance measurements accurately.

7.2 System and Component Descriptions

Describes the function, layout, and operation of various electrical components and systems.

7.2.1 Wiring

Presents the cabling layout and arrangement of electrical utilities with a comprehensive wiring diagram.

7.2.2 Battery

Covers battery removal, installation, inspection, cleaning, maintenance, and recharging procedures.

7.2.3 Switches

Explains the operation of normally open and closed switches and provides methods for testing their functionality.

7.2.4 Ignition Switch

Details the functions of the three-position ignition switch (OFF, RUN, START) and how to test its continuity.

7.2.5 Relays and Solenoids

Explains the magnetic principles behind relays and solenoids and their operation in electrical circuits.

7.2.6 Fuses

Describes the role of fuses in protecting circuits from overloads and the correct procedure for replacement.

7.2.7 Diodes and Rectifiers

Explains the function of diodes and rectifiers in converting AC to DC and provides testing methods.

7.2.8 Electromagnetic Clutch

Describes the function and operation of the electromagnetic clutch used to engage or disengage equipment.

7.3 Functional Checks

Guides on performing functional checks of the electrical system in various operating modes and ignition key positions.

7.3.1 General System Checks

Outlines essential checks for switches, transmission, parking brake, and battery voltage in different ignition states.

7.4 Electrical Wiring Diagrams

Provides detailed wiring diagrams for the machine's electrical system, illustrating component connections and layouts.

7.4.1 General Wiring Diagram

Presents the overall wiring diagram, including a key to components, their colors, and circuit functions.

7.4.2 Operating Layouts in User Modes

Illustrates electrical circuit operations based on ignition key positions (OFF, RUN, START) and operator presence.