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FORST ST6D42 Operator And Maintenance Manual

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OPERATOR AND MAINTENANCE
MANUAL

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  • Page 1   OPERATOR AND MAINTENANCE MANUAL...
  • Page 2 The English language is used for the original instructions. Other languages are a translation of the original instructions. (Directive 2006/42/EC)
  • Page 3 Redwood Global Ltd - ST6D42 Operator and Maintenance Manual Published on: Document ID: 12-00-004 Document version: v2.1 DISCLAIMER This manual has been written by Redwood Global Ltd, to detail the safe operation and maintenance of the Först machine. This document provides information on the design of the product, procedures for routine maintenance, servicing, operating instructions and offers a troubleshooting guide to follow in the event of an unexpected occurrence.

  • Page 4: Table Of Contents

    Redwood Global Ltd - ST6D42 Operator and Maintenance Manual CONTENTS Preface Description of the user Purpose of these instructions Conventions in this document Left-hand and right-hand side Obtaining documentation and information Chapter 1: Machine Overview 1.1  Intended use 1.2  Technical data 1.3  Exterior components...
  • Page 5 Redwood Global Ltd - ST6D42 Operator and Maintenance Manual Chapter 3: Transportation and storage 3.1  Connecting to the tow vehicle 3.2  Towing the Machine 3.3  Disconnecting from the tow vehicle 3.4  Machine lifting 3.5  Removing the discharge chute 3.6  Storage 3.6.1  Preparing the machine for storage...
  • Page 6 Redwood Global Ltd - ST6D42 Operator and Maintenance Manual 5.6.10  Removing ash and cleaning the DPF 5.7  Opening the bonnet 5.8  Opening the chipping chamber cover 5.9  Removing the panel 5.10  Changing the blades 5.11  About blade sharpening 5.12  Turning or replacing the main anvil 5.13  Adjusting the main belt tension...
  • Page 7 Redwood Global Ltd - ST6D42 Operator and Maintenance Manual Warranty Claims Certification Service History Index 12-00-004 v2.1...
  • Page 8 Redwood Global Ltd - ST6D42 Operator and Maintenance Manual FIGURES Figure 1 - Exterior components, right-hand side Figure 2 - Exterior components, left-hand side Figure 3 - Left-hand side engine components Figure 4 - Right-hand side engine components Figure 5 - Chipping chamber...
  • Page 9 Redwood Global Ltd - ST6D42 Operator and Maintenance Manual Figure 35 - Key in the ON position Figure 36 - Key in the engine crank position Figure 37 - Increase speed Figure 38 - Feed roller controls Figure 39 - Feed roller speed adjustment...
  • Page 10 Redwood Global Ltd - ST6D42 Operator and Maintenance Manual Figure 71 - Correct main belt tension Figure 72 - Adjust tension Figure 73 - Hydraulic oil filter Figure 74 - Lifting tab Figure 75 - Battery terminals Figure 76 - Jump start Figure 77 - Wheel drum internal diameter 12-00-004 v2.1...
  • Page 11 Redwood Global Ltd - ST6D42 Operator and Maintenance Manual TABLES Table 1 - Technical data Table 2 - Safety and function test Table 3 - Daily checks Table 4 - Weekly checks Table 5 - Shim part numbers Table 6 - Oils, fluids and lubricants...

  • Page 12: Preface

    Operator and Maintenance Manual PREFACE DESCRIPTION OF THE USER These instructions are intended for the end-user of the ST6D42. The end-user can be described as each person who interacts directly with the machine. The end-user typically includes, but is not limited to:  ...

  • Page 13: Purpose Of These Instructions

    Redwood Global Ltd - ST6D42 Preface Operator and Maintenance Manual PURPOSE OF THESE INSTRUCTIONS Thank you for purchasing/hiring this Redwood Global Ltd, Först wood chipping machine. The purpose of this document is to make you familiar with the operation and maintenance of the machine, so that you can safely operate it as an end-user.

  • Page 14: Conventions In This Document

    Redwood Global Ltd - ST6D42 Preface Operator and Maintenance Manual CONVENTIONS IN THIS DOCUMENT This document uses the following safety notices and tips: DANGER Indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING Indicates a hazardous situation which, if not avoided, could result in serious injury.

  • Page 15: Left-Hand And Right-Hand Side

    Redwood Global Ltd - ST6D42 Preface Operator and Maintenance Manual LEFT-HAND AND RIGHT-HAND SIDE In this manual "left-hand" and "right-hand" mean your left and right when you are standing facing forward, feeding material into the machine. OBTAINING DOCUMENTATION AND INFORMATION The latest version of the documentation is available at the following address: https://forstglobal.com/my-forst/manuals...
  • Page 16 Redwood Global Ltd - ST6D42 Preface Operator and Maintenance Manual This page intentionally left blank 12-00-004 v2.1...

  • Page 17: Chapter 1: Machine Overview

    CHAPTER 1: MACHINE OVERVIEW In this chapter: 1.1  Intended use 1.2  Technical data 1.3  Exterior components 1.4  Engine compartment overview 1.5  Chipping chamber overview 1.6  Autointelligence system 1.7  Feed roller controls 1.8  Control panel 1.9  Emergency stop buttons 1.10  Control Screen 1.10.1  Button Functions 1.10.2  Navigation 1.10.3  Home screen...

  • Page 18: Intended Use

    Operator and Maintenance Manual 1.1   INTENDED USE The Först ST6D42 is designed to reduce wood material up to 150mm (6 inch) wide in diameter to woodchip. This machine is capable of processing up to 5 tons of wood per hour.

  • Page 19: Technical Data

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.2   TECHNICAL DATA Table 1 - Technical data Technical Data ST6D 42 Part number 12-A-076 Weight Overall weight 1165kg Engine Engine Type Doosan D18 Maximum Power...

  • Page 20: Exterior Components

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.3   EXTERIOR COMPONENTS 1 Prop stand Tow hitch head 2 Fuel tank Handbrake lever/cable 3 Control valve speed adjust 10 Chute rotation clamp 4 Control panel...

  • Page 21: Figure 2 - Exterior Components, Left-Hand Side

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual Jockey wheel handle Red stop bar Hopper Hopper tray Battery Safety curtains Number plate Emergency stop Lift point Hopper tray buttons Figure 2 - Exterior components, left-hand side...

  • Page 22: Engine Compartment Overview

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.4   ENGINE COMPARTMENT OVERVIEW Below are the components of the engine located on the left side of the machine: Radiator filler cap Fuel pump 2 Intercooler...

  • Page 23: Figure 4 - Right-Hand Side Engine Components

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual Below are the components of the engine located on the right side of the machine: 1 Diesel particulate filter (DPF) 6 Starter motor 2 Air filter assembly...

  • Page 24: Chipping Chamber Overview

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.5   CHIPPING CHAMBER OVERVIEW To access the chipping chamber: ► Refer to "Opening the chipping chamber cover" on page 95 Flywheel TFR lifting tool slot Flywheel blade...

  • Page 25: Autointelligence System

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.6   AUTOINTELLIGENCE SYSTEM The ST6D42 incorporates the Först Autointelligence system. This system monitors and manages the machine's electrical system. For example, the Autointelligence system:   Will stop and start the feed rollers, making sure that the cutting conditions remain within the optimum limits.

  • Page 26: Feed Roller Controls

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.7   FEED ROLLER CONTROLS Red stop bar The red stop bar (1, Figure 6) located on the folding tray is used to stop the feed rollers during normal operation.

  • Page 27: Control Panel

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.8   CONTROL PANEL The control panel is located on the right-hand side panel. On the control panel you will find the following:   Display screen ►...

  • Page 28: Emergency Stop Buttons

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.9   EMERGENCY STOP BUTTONS WARNING Pushing an emergency stop button does not stop the engine. There is one emergency stop button located on the top of the hopper.

  • Page 29: Control Screen

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.10   CONTROL SCREEN The control screen houses the Först Autointelligence software. The software maintains and controls all functionality of the machine.   The control screen also displays information for all aspects of the machine, such as:  ...

  • Page 30: Button Functions

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.10.1   BUTTON FUNCTIONS Each page displays different information therefore each button performs multiple functions depending on which screen is displayed. Figure 9 - Button functions Description...

  • Page 31: Navigation

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.10.2   NAVIGATION This section describes how to navigate within the software. Figure 10 - Screen navigation Description Minus button - when an icon is highlighted, press this button to navigate left through the...

  • Page 32: Home Screen

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.10.3   HOME SCREEN The home screen displays by default once the machine is powered on. On the home screen you can see the actual engine speed, the target speed of the flywheel, the amount of fuel used and the engine running time since the last manual reset.

  • Page 33: Sensors And Dpf

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.10.4   SENSORS AND DPF The sensors and DPF page displays the sensor and DPF status. If a sensor is tripped the corresponding icon will illuminate or extinguish.

  • Page 34: Machine Information

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.10.5   MACHINE INFORMATION This screen displays all of the machines information such as its engine type and how many spokes it has. By default all features in this screen are locked and any changes to these settings are password protected.

  • Page 35: Active Engine Codes (Dm1)

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.10.6   ACTIVE ENGINE CODES (DM1) This screen displays any active fault codes. If your machine has a problem, the corresponding fault code displays on this screen. If this happens contact Först service personnel and quote the error code shown on this screen when asked.

  • Page 36: Historic Engine Codes (Dm2)

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.10.7   HISTORIC ENGINE CODES (DM2) this screen displays archived fault codes. Först service personnel may need to access this information to see a full history of your machine.

  • Page 37: Settings

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.10.8   SETTINGS In this screen you can adjust the pressure unit type, fuel unit type and the screen brightness. Figure 16 - Settings screen Description Brightness - displays the current brightness level...

  • Page 38: Alarm Splash Screen

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.10.9   ALARM SPLASH SCREEN If there is an alarm, the alarm splash screen appears. The screen shows details about the alarm Contact Först service personnel immediately and describe the alarm message displayed on screen.

  • Page 39: Ignition Switch

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.11   IGNITION SWITCH   Figure 18 - Ignition switch Off position (1, Figure 18) This is the normal position when the machine is not in use.

  • Page 40: Manufacturer's Statutory Plate

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.12   MANUFACTURER’S STATUTORY PLATE Figure 19 - Manufacturer's statutory plate Information on the Manufacturer’s Statutory Plate in line order from top to bottom is as follows:  ...

  • Page 41: Vehicle Identification Number (Vin) Plate

    Redwood Global Ltd - ST6D42 Chapter 1: Machine Overview Operator and Maintenance Manual 1.13   VEHICLE IDENTIFICATION NUMBER (VIN) PLATE Figure 20 - Vehicle identification number Information on the VIN Plate in line order from top to bottom is as follows:  1.
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  • Page 43: Chapter 2: Safety Instructions

    CHAPTER 2: SAFETY INSTRUCTIONS In this chapter: 2.1  Safe working 2.2  General safety 2.3  Noise test information 2.4  Decals 12-00-004 v2.1...

  • Page 44: Safe Working

    Redwood Global Ltd - ST6D42 Chapter 2: Safety instructions Operator and Maintenance Manual 2.1   SAFE WORKING Before using this machine, make sure that you are trained and competent in its operation.    Know the location of and how to use all the safety features. ...
  • Page 45 Redwood Global Ltd - ST6D42 Chapter 2: Safety instructions Operator and Maintenance Manual WARNING When the machine is In use, woodchip and debris are ejected with considerable force from the chute.   Make sure the discharge chute directs woodchip in a safe direction to...
  • Page 46 Redwood Global Ltd - ST6D42 Chapter 2: Safety instructions Operator and Maintenance Manual WARNING Keep all guards and shields around any moving parts in place while the machine is operational. WARNING Do not remove, jam, disable or otherwise impede the effectiveness of any stop and reset controls.
  • Page 47 Redwood Global Ltd - ST6D42 Chapter 2: Safety instructions Operator and Maintenance Manual CAUTION When operating the machine, be aware of your surroundings and work in a safe location.   Position the machine:   on as firm a surface as possible and stabilise the machine  ...

  • Page 48: General Safety

    Redwood Global Ltd - ST6D42 Chapter 2: Safety instructions Operator and Maintenance Manual 2.2   GENERAL SAFETY DO stop the machine before making any DO NOT use machine in poor visibility or adjustments, refuelling or cleaning. insufficient light to see clearly.

  • Page 49: Noise Test Information

    Redwood Global Ltd - ST6D42 Chapter 2: Safety instructions Operator and Maintenance Manual 2.3   NOISE TEST INFORMATION Machine ST6D42 Notes Tested chipping 50 x 50mm pine or an equivalent type of timber 4m in length. Noise levels above 91dB will be experienced at the working position and within a metre radius. ...

  • Page 50: Decals

    Redwood Global Ltd - ST6D42 Chapter 2: Safety instructions Operator and Maintenance Manual 2.4   DECALS Decal Description Decal Description CE (Conformité Ensure that all rotating Européenne or parts have stopped European before maintenance Conformity) mark. Manufacturer’s declaration that the...
  • Page 51 Redwood Global Ltd - ST6D42 Chapter 2: Safety instructions Operator and Maintenance Manual Decal Description Decal Description Use only close fitting Apply 2x parts of gloves, suitable grease to each grease hearing protection nipple once a week. and eye protection...
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  • Page 53: Chapter 3: Transportation And Storage

    CHAPTER 3: TRANSPORTATION AND STORAGE In this chapter: 3.1  Connecting to the tow vehicle 3.2  Towing the Machine 3.3  Disconnecting from the tow vehicle 3.4  Machine lifting 3.5  Removing the discharge chute 3.6  Storage 3.6.1  Preparing the machine for storage 3.6.2  Put into storage 3.6.3  During storage 3.6.4  Take out of storage...

  • Page 54: Connecting To The Tow Vehicle

    Redwood Global Ltd - ST6D42 Chapter 3: Transportation and storage Operator and Maintenance Manual 3.1   CONNECTING TO THE TOW VEHICLE NOTICE When the machine is not connected to a tow vehicle, make sure:   The handbrake is applied  ...

  • Page 55: Figure 24 - Tow Hitch Handle

    Redwood Global Ltd - ST6D42 Chapter 3: Transportation and storage Operator and Maintenance Manual 6. Wind the jockey wheel handle clockwise to lower the tow head onto the ball hitch. 7. Release the tow head handle and continue to wind the jockey wheel handle clockwise.

  • Page 56: Figure 25 - Tow Hitch Wear Indicator

    Redwood Global Ltd - ST6D42 Chapter 3: Transportation and storage Operator and Maintenance Manual Figure 25 - Tow hitch wear indicator 11. Insert the barrel lock for security. 12. Connect the machine trailer extension plug into the vehicle trailer socket.

  • Page 57: Towing The Machine

    Redwood Global Ltd - ST6D42 Chapter 3: Transportation and storage Operator and Maintenance Manual 3.2   TOWING THE MACHINE Make sure that the machine is in transportation mode before departing: a. Hopper tray is closed in the up position and the locking latch is fully engaged.

  • Page 58: Disconnecting From The Tow Vehicle

    Redwood Global Ltd - ST6D42 Chapter 3: Transportation and storage Operator and Maintenance Manual 3.3   DISCONNECTING FROM THE TOW VEHICLE WARNING Make sure there is enough space behind the machine when parking. The machine can roll back 25-30 cm.

  • Page 59: Machine Lifting

    Redwood Global Ltd - ST6D42 Chapter 3: Transportation and storage Operator and Maintenance Manual 3.4   MACHINE LIFTING DANGER The lifting eye should not be used as the single point for lifting. WARNING When lifting the woodchipper, be aware that the lifting eye can securely hold the woodchipper’s weight only.

  • Page 60: Removing The Discharge Chute

    Redwood Global Ltd - ST6D42 Chapter 3: Transportation and storage Operator and Maintenance Manual 3.5   REMOVING THE DISCHARGE CHUTE DANGER Do not remove the rear clamp when removing the chute. Doing so will result in the chute falling. The discharge chute only needs to be removed for storage and transportation purposes.

  • Page 61: Figure 29 - Remove Clamp And Nut

    Redwood Global Ltd - ST6D42 Chapter 3: Transportation and storage Operator and Maintenance Manual 5. Remove both the clamp and the clamp nut and put them somewhere safe. Figure 29 - Remove clamp and nut 6. Loosen the rear clamp by rotating the clamp lever anti-clockwise.

  • Page 62: Figure 31 - Remove Chute

    Redwood Global Ltd - ST6D42 Chapter 3: Transportation and storage Operator and Maintenance Manual 7. Using both hands, carefully slide the chute backwards removing it from the machine. Figure 31 - Remove chute 12-00-004 v2.1...

  • Page 63: Storage

    Redwood Global Ltd - ST6D42 Chapter 3: Transportation and storage Operator and Maintenance Manual 3.6   STORAGE If the machine will not be used for an extended period, you must store the machine correctly. If you prepare the machine carefully and apply on-going care you can prevent deterioration and damage to the machine while it is in storage.

  • Page 64: Take Out Of Storage

    Redwood Global Ltd - ST6D42 Chapter 3: Transportation and storage Operator and Maintenance Manual 3.6.4   TAKE OUT OF STORAGE Remove any covers. 2. Examine all fluid levels. If necessary replace the fluid or add more fluid. 3. Check the pressure and condition of the tyres.

  • Page 65: Chapter 4: Operation

    CHAPTER 4: OPERATION In this chapter: 4.1  Preparation for use 4.2  Positioning the machine for use 4.3  Starting the Machine 4.4  Safety & function test Green and orange hopper buttons 4.5  Feed roller speed adjustment 4.6  Shutting down the machine 4.7  Removing blockages 12-00-004 v2.1...

  • Page 66: Preparation For Use

    Redwood Global Ltd - ST6D42 Chapter 4: Operation Operator and Maintenance Manual 4.1   PREPARATION FOR USE Do not attempt to operate a newly delivered machine before complying with the preparation for use instructions. The operator must be thoroughly familiar with the operating and safety instructions before using the machine.

  • Page 67: Positioning The Machine For Use

    Redwood Global Ltd - ST6D42 Chapter 4: Operation Operator and Maintenance Manual 4.2   POSITIONING THE MACHINE FOR USE WARNING Take care when lowering and lifting the hopper. Improperly handling the hopper can result in injury. CAUTION Obey all relevant safety warnings when positioning the machine for operation.For more information, refer to "Safety instructions"...

  • Page 68: Figure 33 - Hopper Tray Locking Latch

    Redwood Global Ltd - ST6D42 Chapter 4: Operation Operator and Maintenance Manual 2. Disengage both hopper tray locking latches (1, Figure 33). Figure 33 - Hopper tray locking latch 3. Lower the hopper tray in a controlled manner (do not drop the hopper tray).

  • Page 69: Starting The Machine

    Redwood Global Ltd - ST6D42 Chapter 4: Operation Operator and Maintenance Manual 4.3   STARTING THE MACHINE Carry out daily checks before first use of machine everyday. To start safely, follow the start up procedure below. Insert the key into the ignition.

  • Page 70: Figure 37 - Increase Speed

    Redwood Global Ltd - ST6D42 Chapter 4: Operation Operator and Maintenance Manual Figure 37 - Increase speed 6. Check the safety system is functioning correctly. 7. The machine is now ready for use. Wait until the engine is warm before heavy use.

  • Page 71: Safety & Function Test

    Redwood Global Ltd - ST6D42 Chapter 4: Operation Operator and Maintenance Manual 4.4   SAFETY & FUNCTION TEST The safety & function test makes sure that the safety devices and controls on the machine are working correctly. WARNING If any of these checks fail, turn off the machine, remove the key from the ignition switch, and contact FörstAssist.
  • Page 72 Redwood Global Ltd - ST6D42 Chapter 4: Operation Operator and Maintenance Manual   Action Expected outcome   Turn the feed roller flow control valve between 1 and The speed of the feed rollers decreases and 15  increases. 16  Close the hopper tray.

  • Page 73: Feed Roller Speed Adjustment

    Redwood Global Ltd - ST6D42 Chapter 4: Operation Operator and Maintenance Manual 4.5   FEED ROLLER SPEED ADJUSTMENT The feed roller speed can be adjusted to suit the material being chipped, refer to Figure 39.    1. Turn dial to align number with paint spot.

  • Page 74: Shutting Down The Machine

    Redwood Global Ltd - ST6D42 Chapter 4: Operation Operator and Maintenance Manual 4.6   SHUTTING DOWN THE MACHINE To shut down safely, follow the procedure below. NOTICE Increase and decrease the engine speed slowly, especially during the first 50 hours of operation.

  • Page 75: Removing Blockages

    Redwood Global Ltd - ST6D42 Chapter 4: Operation Operator and Maintenance Manual 4.7   REMOVING BLOCKAGES Be careful, whatever is fed into the machine has to come out of the discharge chute. DANGER Stop the engine before attempting to remove any blockages in the machine.

  • Page 76: Figure 44 - Spring Hanger

    Redwood Global Ltd - ST6D42 Chapter 4: Operation Operator and Maintenance Manual Check the feed rollers: 8. Open the bonnet. 9. Open the chipping chamber cover. Figure 44 - Spring hanger 10. Release the feed roller spring tension on both sides. Remove the spring if necessary.

  • Page 77: Figure 46 - Raising The Top Feed Roller Housing

    Redwood Global Ltd - ST6D42 Chapter 4: Operation Operator and Maintenance Manual 12. Lift the top feed roller (2, Figure 46) to the fully open position. Figure 46 - Raising the top feed roller housing 13. You should now have access to the feed chamber.
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  • Page 79: Chapter 5: Maintenance

    CHAPTER 5: MAINTENANCE In this chapter: 5.1  Routine maintenance 5.2  Daily checks 5.3  Weekly maintenance checks 5.4  Engine maintenance 5.5  Routine cleaning 5.5.1  Pressure washing 5.6  Aftertreatment System 5.6.1  Diesel particulate filter (DPF) 5.6.2  DPF regeneration 5.6.3  Stage V DPF regeneration 5.6.4  DPF regeneration methods 5.6.5  DPF regeneration lamp and switch 5.6.6  Regeneration mode during operation (passive and active regeneration)

  • Page 80: Table 6 - Oils, Fluids And Lubricants

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.17.3  Replacing the battery 5.17.4  Charging the battery 5.17.5  Jump starting the battery 5.18  Oils, fluids and lubricants 5.19  Fastener tightening torques 5.20  Tools and accessories 5.21  Running gear – hitch & axle 5.22  Service Schedule...

  • Page 81: Routine Maintenance

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.1   ROUTINE MAINTENANCE WARNING Make sure the key is removed from the ignition before commencing any service or maintenance on the machine. NOTICE When the machine is new, the hydraulic oil level may drop during initial use. ...
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  • Page 83: Daily Checks

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.2   DAILY CHECKS Perform the following checks before putting the unit into operational service and before each operational day. Table 3 - Daily checks Item Check Further action ✔...
  • Page 84 Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual Item Check Further action ✔ /✘ 17  Feed roller function Feed rollers operate backwards and forwards at maximum RPM Check the hopper tray Secure hopper tray 18  catches  ...

  • Page 85: Weekly Maintenance Checks

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.3   WEEKLY MAINTENANCE CHECKS Perform the following checks every week, or after every 8 hours of use. Table 4 - Weekly checks Item Check Further action ✔ /✘...
  • Page 86 Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual Item Check Further action ✔ /✘   Hoses secure Visually check all hydraulic components 16    All components free of leaks 17  Check the safety decals Decals are fitted, legible and undamaged  ...

  • Page 87: Engine Maintenance

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.4   ENGINE MAINTENANCE Please refer to the engine manual supplied with this machine for the following:   Checking the engine oil.   Changing the engine oil and oil filter.

  • Page 88: Aftertreatment System

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.6   AFTERTREATMENT SYSTEM 5.6.1   DIESEL PARTICULATE FILTER (DPF) The DPF (Diesel Particulate Filter) system serves to prevent particulate matter (PM) in emissions from being discharged into the air and consists of a DPF body, one exhaust gas temperature sensors, and one differential pressure sensor.

  • Page 89: Stage V Dpf Regeneration

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.6.3   STAGE V DPF REGENERATION Step Soot Quantity Torque de-rate Remark Lamp No action (passive regeneration Below 99% dependent on machine CUP) To start active regen. With high 100-105% temp.

  • Page 90: Dpf Regeneration Methods

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.6.4   DPF REGENERATION METHODS Stage V engines are designed to perform passive regeneration of soot accumulated in the DPF even under normal exhaust conditions without needing to be initiated by the operator.

  • Page 91: Dpf Regeneration Lamp And Switch

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.6.5   DPF REGENERATION LAMP AND SWITCH The HEST (High Exhaust System Temperature) Lamp notifies the operator when hot exhaust gas is being discharged from the engine during DPF regeneration.

  • Page 92: Regeneration Mode During Operation (Passive And Active Regeneration)

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.6.6   REGENERATION MODE DURING OPERATION (PASSIVE AND ACTIVE REGENERATION) The regeneration mode is performed automatically by the ECU to regenerate the DPF when any of the following regeneration modes are met. During regeneration, the regeneration lamp and HEST lamp turn on to warn the operator of the hot exhaust gas.

  • Page 93: Removing Ash And Cleaning The Dpf

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.6.10   REMOVING ASH AND CLEANING THE DPF During the regeneration soot in the DPF, ash accumulates in the DPF. Once a certain amount of ash accumulates, engine performance and fuel efficiency are affected due to a build up of back pressure from the exhaust system, so ash cleaning must be performed regularly to prevent any worsening of engine performance or fuel efficiency.

  • Page 94: Opening The Bonnet

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.7   OPENING THE BONNET To access the engine: Stop the engine. 2. Remove the key from the ignition and keep in a safe place. 3. Release the two bonnet catches.

  • Page 95: Opening The Chipping Chamber Cover

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.8   OPENING THE CHIPPING CHAMBER COVER To access the chipping chamber: Stop the engine. 2. Remove the key from the ignition and keep in a safe place.

  • Page 96: Figure 53 - Open Chipping Chamber Cover

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual Figure 53 - Open chipping chamber cover NOTICE When closing the chipping chamber, carry out these tasks in reverse. When installing the two chipping chamber cover bolts bolts, torque to 86Nm.

  • Page 97: Removing The Panel

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.9   REMOVING THE PANEL Removing the panel will give you access to the following:   Battery   Stone trap   Fuses   Spring To remove the side panel: Stop the engine.

  • Page 98: Changing The Blades

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.10   CHANGING THE BLADES WARNING The blades must not be used beyond the wear mark. Failure to comply with this could result in damaging the machine, injury, or loss of life.

  • Page 99: Figure 58 - Flywheel Locking Tool

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5. Open the chipping chamber cover. Figure 58 - Flywheel locking tool 6. Turn the flywheel until it is in the locking position. (Figure 59). 7. Insert the flywheel locking tool into the groove on the flywheel. The groove becomes visible once the wheel is in the correct position (Figure 59).

  • Page 100: Figure 60 - Blade Removal

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual Figure 60 - Blade removal Installing the replacement blades: CAUTION Use genuine Först blades and blade bolt sets only. Replace the blade bolt sets every time the blades removed...

  • Page 101: Figure 61 - Correct Position Of The Back Edge Of The Blade

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual Figure 61 - Correct position of the back edge of the blade CAUTION Shims may be required to keep the gap between the blade and the anvil on the inner edge (closest to the flywheel shaft) at 1mm.

  • Page 102: About Blade Sharpening

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.11   ABOUT BLADE SHARPENING • After sharpening, reset the blade gap by using a blade shim. • Shims are available in the following thicknesses: For optimum performance, keep the blades on the woodchipper sharp.

  • Page 103: Figure 63 - Blade Gaps

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual Side Anvil Flywheel Blade Anvil Inside Blade Gap Outside Blade Gap     Figure 63 - Blade gaps When changing the blades, make sure each blade bolt set is replaced every time the blades are changed.

  • Page 104: Turning Or Replacing The Main Anvil

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.12   TURNING OR REPLACING THE MAIN ANVIL If an anvil is worn or damaged, turn or replace it with a new one. You can turn an anvil 180° to use it a second time.

  • Page 105: Figure 66 - Anvil Removed

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 10. Using the slide hammer, extract the anvil (3, Figure 66) through the side of the chamber. Figure 66 - Anvil removed 11. Check the anvil seats inside the chamber for damage or wear.

  • Page 106: Figure 68 - Anvil Tight To The Bedplate

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual Figure 68 - Anvil tight to the bedplate 15. Push the anvil along the lower seat. 16. Push the anvil into the seat under the side anvil (6, Figure 69).

  • Page 107: Adjusting The Main Belt Tension

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.13   ADJUSTING THE MAIN BELT TENSION The flywheel V belts must be checked for tension and condition. If any belt shows sign of wear, surface damage, shredding, excessive glazing, or have been stretched to their limit, they must be replaced.

  • Page 108: Figure 71 - Correct Main Belt Tension

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual Figure 71 - Correct main belt tension 6. To adjust the tension: a. Using a suitable tool, loosen the main tension belt. b. With the bolts loosened, use a suitable tool to move the belt tensioner.
  • Page 109 Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 9. Allow the engine to idle for 30 seconds. 10. Turn the engine off and remove the key from the ignition switch. 11. Open the bonnet. 12. Check the main belt tension.

  • Page 110: Hydraulic Oil Filter

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.14   HYDRAULIC OIL FILTER CAUTION Use suitable protective gloves to prevent fluid contact with skin. CAUTION Use approved local authority environmental procedures when disposing of fluids and filters.

  • Page 111: Changing The Hydraulic Filter

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.15   CHANGING THE HYDRAULIC FILTER CAUTION Use suitable protective gloves to prevent fluid contact with skin. CAUTION Use approved local authority environmental procedures when disposing of fluids and filters.

  • Page 112: Draining The Hydraulic Oil

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.16   DRAINING THE HYDRAULIC OIL CAUTION Use suitable protective gloves to avoid contact with skin. CAUTION Use suitable protective eye wear to protect eyes from contact with oil.

  • Page 113: Battery

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.17   BATTERY Before using and charging batteries, read the following safety information: WARNING Battery acid is highly corrosive. Always wear eye protection when handling a battery. Do not tilt battery as acid could escape from vents.

  • Page 114: Replacing The Battery

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.17.3   REPLACING THE BATTERY You can replace an old battery with a new one. Stop the engine. 2. Remove the key from the ignition and keep in a safe place.

  • Page 115: Charging The Battery

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.17.4   CHARGING THE BATTERY If the woodchipper has a flat battery, charge the battery. NOTICE When charging the battery, take the following into consideration: • Ensure good ventilation •...

  • Page 116: Jump Starting The Battery

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.17.5   JUMP STARTING THE BATTERY If the woodchipper has a flat battery, you can use a support vehicle to jump start the battery. CAUTION When attaching jump leads to a battery, make sure that only the lead ends make contact with the battery terminals.

  • Page 117: Oils, Fluids And Lubricants

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.18   OILS, FLUIDS AND LUBRICANTS Table 6 - Oils, fluids and lubricants Oils, Fluids, and Lubricants Item Assembly Product 1  Engine oil HD SAE 10w40 ( API CJ-4 or ACEA E9) 2 ...

  • Page 118: Fastener Tightening Torques

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.19   FASTENER TIGHTENING TORQUES All machine fastener torques should be regularly checked in accordance with the table below. In particular, those for the flywheel blades, flywheel bearings, axle assembly, hitch, road wheels and engine mounts.

  • Page 119: Tools And Accessories

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.20   TOOLS AND ACCESSORIES The following is a list of tools and accessories supplied with the machine. Table 8 - Tools and accessories Item Part Number Quantity Item Description Reference 1 ...

  • Page 120: Running Gear - Hitch & Axle

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.21   RUNNING GEAR – HITCH & AXLE Först uses AL-KO Kobler break drums. Please refer to maintenance instruction manual supplied with the machine. Check the internal diameter of the wheel drum for ware.

  • Page 121: Service Schedule

    Redwood Global Ltd - ST6D42 Chapter 5: Maintenance Operator and Maintenance Manual 5.22   SERVICE SCHEDULE The service schedule must be carried out by a competent person familiar with the machine. Table 9 - Service schedule Hours of Tasks Requirements and part...
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  • Page 123: Chapter 6: Troubleshooting

    CHAPTER 6: TROUBLESHOOTING In this chapter: 6.1  The engine doesn't crank 6.2  The engine cranks but doesn't fire 6.3  The display screen is blank 6.4  The feed rollers are not turning 6.5  The woodchipper suddenly stops running 6.6  The woodchipper is struggling to chip wood 6.7  Hydraulic oil is leaking 6.8  The tyres are wearing unevenly 12-00-004 v2.1...

  • Page 124: The Engine Doesn't Crank

    Redwood Global Ltd - ST6D42 Chapter 6: Troubleshooting Operator and Maintenance Manual 6.1   THE ENGINE DOESN'T CRANK Possible cause Check Corrective action Battery Check battery terminals Tighten if loose Check battery is charged Charge if flat Check red and black battery...

  • Page 125: The Display Screen Is Blank

    Redwood Global Ltd - ST6D42 Chapter 6: Troubleshooting Operator and Maintenance Manual Possible cause Check Corrective action Check battery condition Replace if damaged Ignition switch is damaged Check plug and wiring Refit or repair Debris in chamber Check chamber for debris Remove any debris 6.3  ...
  • Page 126 Redwood Global Ltd - ST6D42 Chapter 6: Troubleshooting Operator and Maintenance Manual Possible cause Check Corrective action Flow control valve Check valve is free to rotate Set the dial to 5 E-stop button depressed Check E-stop button Reset E-stop button...

  • Page 127: The Woodchipper Suddenly Stops Running

    Redwood Global Ltd - ST6D42 Chapter 6: Troubleshooting Operator and Maintenance Manual 6.5   THE WOODCHIPPER SUDDENLY STOPS RUNNING Possible cause Check Corrective action Loss of oil pressure Check oil level Top up if required Check oil pressure switch Replace if damaged or faulty...

  • Page 128: Hydraulic Oil Is Leaking

    Redwood Global Ltd - ST6D42 Chapter 6: Troubleshooting Operator and Maintenance Manual Possible cause Check Corrective action No stress occurring too soon Check main belts Tension correctly Low RPM Check throttle Adjust as required Blade condition Check blade sharpness Replace if dull 6.7  ...

  • Page 129: Hydraulics Schematic

    Redwood Global Ltd - ST6D42 Hydraulics schematic Operator and Maintenance Manual HYDRAULICS SCHEMATIC   12-00-004 v2.1...

  • Page 130: Förstassist

    Redwood Global Ltd - ST6D42 FörstAssist Operator and Maintenance Manual FÖRSTASSIST The FörstAssist technical support team is there to back you up and give you assistance in the event of a mechanical issue or if you have a product-related technical question.

  • Page 131: Warranty

    Redwood Global Ltd - ST6D42 Warranty Operator and Maintenance Manual WARRANTY WARRANTY STATEMENT  1. Redwood Global Ltd guarantee all Först equipment supplied by them against any defect in manufacture and assembly – this guarantee is for a period of 3 years commencing on the date of sale to the first end user.
  • Page 132 Redwood Global Ltd - ST6D42 Certification Operator and Maintenance Manual CERTIFICATION     DECLARATION OF CONFORMITY FOR CE MARKING The certification is provided separately with the associated machine. Company contact details:Redwood Global Ltd,Unit 86, Livingstone Road, Walworth Business Park,Andover, SP10 5NS  ...
  • Page 133 Redwood Global Ltd - ST6D42 Service History Operator and Maintenance Manual SERVICE HISTORY Date Service Hours Agent stamp   Date Service Hours Agent stamp type type                            ...
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  • Page 135 Redwood Global Ltd - ST6D42 Index Operator and Maintenance Manual regeneration  88 DPF regeneration lamp and switch  91 INDEX DPF regeneration methods  90 Draining the Hydraulic Oil  112 During storage  63 About blade sharpening  102 Active Engine Codes  35 Emergency Stop buttons  28 Adjusting the main belt tension  107 Engine compartment overview  22...
  • Page 136 Redwood Global Ltd - ST6D42 Index Operator and Maintenance Manual Replacing the battery  114 Routine Cleaning  87 Left-hand and right-hand side  15 Routine maintenance  81 Running gear – hitch & axle  120 Machine Information  34 Machine lifting  59 Safe working  44 Manual regeneration mode (forced regeneration)  92 Safety & function test  71...
  • Page 137 Redwood Global Ltd - ST6D42 Index Operator and Maintenance Manual Warranty Claims  131 Warranty Statement  131 Weekly maintenance checks  85 12-00-004 v2.1...
  • Page 138   Redwood Global Ltd Unit 86, Livingstone Road, Walworth Business Park, Andover, SP10 5NS www.forstglobal.com sales@ForstGlobal.com Scan for www.forstglobal.com...

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