FORST ST6D42 - User Manual

Questions and Answers

C
charleswilsonAug 13, 2025
Why doesn't the engine crank on my FORST ST6D42 Chipper?
- P
  Pamela RomeroAug 13, 2025
  If the engine of your FORST Chipper doesn't crank, there could be several reasons: * The battery might be loose, flat, or damaged. Tighten it if loose, charge if flat, or replace if damaged. * The bonnet sensor could be damaged, loose, or misaligned. Replace it if damaged, tighten the connector plug, adjust it to approximately 3-4 mm, or simply tighten it if loose. * A fuse might be blown. Replace it and check its security. * The flywheel might be seized. Clear any blockages. * The ignition switch or starter motor could be faulty. Refit or replace them as needed.
J
Jacob WallaceAug 17, 2025
What to do if my FORST ST6D42 Chipper cranks but doesn't start?
- D
  djordanAug 17, 2025
  If your FORST Chipper's engine cranks but doesn't fire, consider these potential causes: * **Fuel Issues:** The fuel tank might be empty, or there could be debris, a blocked filter, kinks in the fuel line, or a blocked vent in the fuel system. Top up the fuel if empty, remove any debris, replace the filter, replace or remove kinks, clear any blockage, or clean the vent or replace the cap. * **Fuel Quality:** The fuel might be of poor quality or the wrong type. Drain and refill the fuel system. * **Air in the Fuel System:** Tighten or replace components to eliminate air. * **Battery Problems:** A loose, flat, or damaged battery can prevent the engine from firing. Tighten if loose, charge if flat, or replace if damaged.
D
Deborah HernandezAug 25, 2025
Why is the display screen blank on my FORST ST6D42 Chipper?
- A
  Anita LandryAug 25, 2025
  If the display screen on your FORST Chipper is blank, it could be due to: * A loose CAN cable (communication cable between screen and controller). Tighten if loose. * Blown fuses. Replace them and check their security. * Battery issues. Tighten if loose, charge if flat, or replace if damaged.
Z
Zachary RamseyAug 28, 2025
What causes the feed rollers to stop turning on my FORST ST6D42 Chipper?
- K
  Karen BanksAug 28, 2025
  If the feed rollers on your FORST Chipper are not turning, consider the following: * **Hydraulic Oil:** Check if there is a lack of hydraulic oil and top up if required. * **Belts:** Loose belts can prevent the rollers from turning. Tension them correctly. * **RPM:** Ensure the throttle is in the max position. * **Shaft/Coupling:** If there's a damaged shaft or coupling at the feed rollers, contact a repair agent. * **Speed Sensor:** Replace if damaged, adjust to approximately 3 to 4 mm, or refit/replace as required. * **Valve Block Solenoid Plugs:** Refit or repair these plugs.
C
cporterSep 1, 2025
Why is my FORST Chipper struggling to chip wood?
- W
  Walter ButlerSep 1, 2025
  If your FORST Chipper is struggling to chip wood, it might be due to: * **Lack of Fuel:** The engine might not be getting enough fuel. Clean or refill the fuel system as required. * **Lack of Air:** The engine might not be getting enough air. Clean or replace the air filter as needed. * **Poor Quality Fuel:** The fuel quality could be affecting performance. Drain and refill the fuel system with a better quality fuel.
S
Stephanie MunozSep 5, 2025
How to fix hydraulic oil leak in FORST ST6D42 Chipper?
- M
  Mr. Isaac Porter DVMSep 5, 2025
  If hydraulic oil is leaking from your FORST Chipper, it could be due to: * The hydraulic oil level being too high. Drain to the correct level. * A loose hydraulic fitting. Tighten or replace the fitting.
T
thomas83Sep 9, 2025
What causes uneven tyre wear on FORST Chipper?
- H
  hshafferSep 9, 2025
  Uneven tyre wear on your FORST Chipper can be caused by: * Incorrect tyre pressure. Adjust to 2.76 bar (40 psi). * Loose wheel nuts. Adjust to 90Nm. * Damaged wheel bearings. In this case, contact a repair agent.
J
Joseph GayNov 20, 2025
What to do if FORST ST6D42 suddenly stops running?
- Q
  qgoodwinNov 20, 2025
  If your FORST Chipper suddenly stops running, it could be due to several reasons. Check the following: * **Oil Pressure:** A loss of oil pressure can cause the engine to stop. Top up if required or replace damaged or faulty components. * **Overheating:** Overheating can also cause the engine to stop. Replace damaged components, clear blockages, and top up fluids if required. * **Flywheel:** A seized flywheel will prevent the engine from running. Clear any blockages. * **Bonnet Catches/Sensor:** Ensure the bonnet catches are secure and the sensor is functioning correctly. Refit or replace catches; replace or adjust the sensor (adjust to approximately 3 to 4mm, replace sensor or tighten connector plug). * **Fuel Flow:** A lack of fuel can cause the engine to stop. Top up if empty,...

Summary

Preface

Description of the User

Defines the intended end-users of the ST6D42 manual.

Purpose of These Instructions

Explains the manual's intent to familiarize users with operation and maintenance.

Conventions in This Document

Details safety notices, cross-references, and image references used in the manual.

Chapter 1: Machine Overview

Intended Use

Describes the ST6D42's design to reduce wood material into woodchip.

Technical Data

Provides detailed specifications and measurements for the ST6D42 machine.

Exterior Components

Identifies and labels the external parts of the machine with diagrams.

Control Panel

Locates and lists the components found on the machine's control panel.

Emergency Stop Buttons

Details the location and function of the emergency stop button on the hopper.

Ignition Switch

Describes the off, on, and start positions of the machine's ignition switch.

Chapter 2: Safety Instructions

Safe Working

Emphasizes operator training, familiarization with safety features, and proper PPE.

General Safety

Lists essential DOs and DON'Ts for safe operation and maintenance of the machine.

Decals

Explains the meaning and importance of various safety decals found on the machine.

Chapter 3: Transportation and Storage

Connecting to the Tow Vehicle

Provides step-by-step instructions and safety notices for connecting the machine to a tow vehicle.

Towing the Machine

Outlines procedures and precautions for safely towing the woodchipper.

Storage

Covers procedures for preparing, storing, and retrieving the machine for extended periods.

Chapter 4: Operation

Preparation for Use

Details essential checks and familiarization required before operating the machine.

Positioning the Machine for Use

Explains how to safely position the machine on level ground for operation.

Starting the Machine

Provides a step-by-step guide for safely starting the woodchipper engine.

Safety & Function Test

Outlines the critical safety and function tests to ensure machine readiness.

Removing Blockages

Provides critical safety instructions and steps for clearing material blockages.

Chapter 5: Maintenance

Daily Checks

Lists essential checks to be performed before each operational day.

Weekly Maintenance Checks

Details checks recommended to be performed weekly or every 8 hours of use.

Changing the Blades

Offers detailed instructions and safety warnings for replacing the machine's blades.

Turning or Replacing the Main Anvil

Explains how to turn or replace the machine's main anvil.

Changing the Hydraulic Filter

Guides users through the process of replacing the hydraulic oil filter.

Replacing the Battery

Details the step-by-step process for replacing the machine's battery.

Service Schedule

Outlines tasks to be performed at different service intervals based on operating hours.

Chapter 6: Troubleshooting

The Engine Doesnt Crank

Lists possible causes and corrective actions when the engine fails to crank.

The Engine Cranks But Doesnt Fire

Addresses issues when the engine cranks but does not start.

The Feed Rollers Are Not Turning

Offers troubleshooting steps for when the feed rollers fail to operate.

The Woodchipper Suddenly Stops Running

Identifies reasons and solutions for the machine unexpectedly stopping during operation.

Hydraulics Schematic

FörstAssist

Warranty

Service History

FORST ST6D42 Specifications

General

Brand	FORST
Model	ST6D42
Category	Chipper
Language	English

Related product manuals

FORST ST6D42 - User Manual

Table of Contents

Questions and Answers

Summary

Preface

Description of the User

Purpose of These Instructions

Conventions in This Document

Chapter 1: Machine Overview

Intended Use

Technical Data

Exterior Components

Control Panel

Emergency Stop Buttons

Ignition Switch

Chapter 2: Safety Instructions

Safe Working

General Safety

Decals

Chapter 3: Transportation and Storage

Connecting to the Tow Vehicle

Towing the Machine

Storage

Chapter 4: Operation

Preparation for Use

Positioning the Machine for Use

Starting the Machine

Safety & Function Test

Removing Blockages

Chapter 5: Maintenance

Daily Checks

Weekly Maintenance Checks

Changing the Blades

Turning or Replacing the Main Anvil

Changing the Hydraulic Filter

Replacing the Battery

Service Schedule

Chapter 6: Troubleshooting

The Engine Doesnt Crank

The Engine Cranks But Doesnt Fire

The Feed Rollers Are Not Turning

The Woodchipper Suddenly Stops Running

Hydraulics Schematic

FörstAssist

Warranty

Service History

FORST ST6D42 Specifications

Related product manuals