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FORST ST6P 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 DISCLAIMER This manual has been written by Redwood Global Ltd, to detail the safe operation and maintenance of the Först ST6P Woodchipper 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 - ST6P 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 - ST6P Operator and Maintenance Manual 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 Chapter 4: Operation 4.1  Preparation for use...
  • Page 6 Redwood Global Ltd - ST6P Operator and Maintenance Manual 5.16.2  Going into long term storage 5.16.3  Replacing the battery 5.16.4  Charging the battery 5.16.5  Jump starting the battery 5.17  Oils, fluids and lubricants 5.18  Fastener tightening torques 5.19  Tools and accessories 5.20  Running gear –...
  • Page 7 Redwood Global Ltd - ST6P Operator and Maintenance Manual FIGURES Figure 1 - Exterior components, right-hand side view Figure 2 - Exterior components, left-hand side view Figure 3 - Engine left-hand side Figure 4 - Engine right-hand side Figure 5 - Chipping chamber...
  • Page 8 Redwood Global Ltd - ST6P Operator and Maintenance Manual Figure 35 - Feed roller speed adjustment Figure 36 - Idle Figure 37 - Key in the OFF position Figure 38 - Pushing the flywheel away from you Figure 39 - Pulling the flywheel towards you...
  • Page 9 Redwood Global Ltd - ST6P Operator and Maintenance Manual Figure 73 - Wheel drum internal diameter 12-00-001 v4.0...
  • Page 10 Redwood Global Ltd - ST6P Operator and Maintenance Manual TABLES Table 1 - Safety and function test Table 2 - Daily checks Table 3 - Weekly checks Table 4 - Shim part numbers Table 5 - Oils, fluids and lubricants...

  • Page 11: Preface

    PREFACE DESCRIPTION OF THE USER These instructions are intended for the end-user of the ST6P Woodchipper . 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 12: Purpose Of These Instructions

    Redwood Global Ltd - ST6P 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 13: Conventions In This Document

    Redwood Global Ltd - ST6P 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 14: Left-Hand And Right-Hand Side

    Redwood Global Ltd - ST6P 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 15: 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  Display screen 1.10.1  P1 - Information screen 1.10.2  P2 - Switch status screen 1.10.3  P3 - No stress system settings screen...

  • Page 16: Intended Use

    Operator and Maintenance Manual 1.1   INTENDED USE The Först ST6P 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 17: Technical Data

    Redwood Global Ltd - ST6P Chapter 1: Machine Overview Operator and Maintenance Manual 1.2   TECHNICAL DATA Technical Data ST6P 750 Part number 24-A-000 Weight Overall weight 745kg Engine Engine Type Briggs Vanguard V twin EFI Maximum Power 27.2kW (37hp)
  • Page 18 Redwood Global Ltd - ST6P Chapter 1: Machine Overview Operator and Maintenance Manual Technical Data ST6P 750 Voltage 12V DC Negative Earth Battery 063 44Ah Rollers Roller Feed Twin series hydraulic motors Material Processing Maximum Material Diameter 150mm Material Processing Capacity...

  • Page 19: Exterior Components

    Redwood Global Ltd - ST6P Chapter 1: Machine Overview Operator and Maintenance Manual 1.3   EXTERIOR COMPONENTS 1 Control valve speed adjust Tow hitch head 2 Fuel tank Handbrake lever / cable 3 Control panel Chute rotation clamp 4 Vehicle identification (vin)plate...

  • Page 20: Figure 2 - Exterior Components, Left-Hand Side View

    Redwood Global Ltd - ST6P Chapter 1: Machine Overview Operator and Maintenance Manual Jockey wheel handle Stop bar Hopper Hopper tray Battery Safety curtains Number plate Emergency stop Hopper tray buttons Lifting eye Jockey wheel handle Red stop bar Hopper...

  • Page 21: Engine Compartment Overview

    Redwood Global Ltd - ST6P 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. Fuel filter 3 Engine oil dipstick 2 Engine oil filler cap...

  • Page 22: Figure 4 - Engine Right-Hand Side

    Redwood Global Ltd - ST6P Chapter 1: Machine Overview Operator and Maintenance Manual Below are components located on the right side of the machine: Hydraulic oil tank 4 V belt tensioner 2 Hydraulic filler cap 5 Air filter assembly 3 V belt...

  • Page 23: Chipping Chamber Overview

    Redwood Global Ltd - ST6P 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 79 Flywheel TFR lifting tool slot Flywheel blade...

  • Page 24: Autointelligence System

    Redwood Global Ltd - ST6P Chapter 1: Machine Overview Operator and Maintenance Manual 1.6   AUTOINTELLIGENCE SYSTEM The ST6P Woodchipper incorporates the Först Autointelligence system. This system monitors and manages the machine's electrical system. For example, the Autointelligence system:  ...

  • Page 25: Feed Roller Controls

    Redwood Global Ltd - ST6P 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 26: Control Panel

    Redwood Global Ltd - ST6P 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:   Screen Refer to "Display screen" on page 1  ...

  • Page 27: Emergency Stop Buttons

    Redwood Global Ltd - ST6P 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 28: Display Screen

    Redwood Global Ltd - ST6P Chapter 1: Machine Overview Operator and Maintenance Manual 1.10   DISPLAY SCREEN The display screen is located on the control panel. The information screen is displayed on start up. 1.10.1   P1 - INFORMATION SCREEN The information screen is displayed on start up.

  • Page 29: P3 - No Stress System Settings Screen

    Redwood Global Ltd - ST6P Chapter 1: Machine Overview Operator and Maintenance Manual   Orange - feed rollers backward button Lights up when the orange button is pushed 1.10.3   P3 - NO STRESS SYSTEM SETTINGS SCREEN Push the P3 button to access the no stress system settings screen.

  • Page 30: Ignition Switch

    Redwood Global Ltd - ST6P Chapter 1: Machine Overview Operator and Maintenance Manual 1.11   IGNITION SWITCH   Figure 13 - Ignition switch Off position (1, Figure 13) This is the normal position when the machine is not in use.

  • Page 31: Manufacturer's Statutory Plate

    Redwood Global Ltd - ST6P Chapter 1: Machine Overview Operator and Maintenance Manual 1.12   MANUFACTURER’S STATUTORY PLATE Figure 14 - Manufacturer's statutory plate Information on the Manufacturer’s Statutory Plate in line order from top to bottom is as follows:  ...

  • Page 32: Vehicle Identification Number (Vin) Plate

    Redwood Global Ltd - ST6P Chapter 1: Machine Overview Operator and Maintenance Manual 1.13   VEHICLE IDENTIFICATION NUMBER (VIN) PLATE Figure 15 - Vehicle identification number Information on the VIN Plate in line order from top to bottom is as follows:  1.

  • Page 33: Chapter 2: Safety Instructions

    CHAPTER 2: SAFETY INSTRUCTIONS In this chapter: 2.1  Safe working 2.2  General safety 2.3  Fuel recommendations 2.4  Noise test information 2.5  Decals 12-00-001 v4.0...

  • Page 34: Safe Working

    Redwood Global Ltd - ST6P 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 35 Redwood Global Ltd - ST6P 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 36 Redwood Global Ltd - ST6P 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 37 Redwood Global Ltd - ST6P 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 38: General Safety

    Redwood Global Ltd - ST6P 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 39: Fuel Recommendations

    Redwood Global Ltd - ST6P Chapter 2: Safety instructions Operator and Maintenance Manual 2.3   FUEL RECOMMENDATIONS Fuel Recommendations Fuel must meet these requirements:   Clean, fresh, unleaded petrol.   A minimum of 87 octane/87 AKI (91 RON). High altitude use, see below.
  • Page 40 Redwood Global Ltd - ST6P Chapter 2: Safety instructions Operator and Maintenance Manual If petrol in the engine has not been treated with a fuel stabilizer , it must be drained into an approved container. Run the engine until it stops from lack of fuel. The use of a fuel stabilizer in the storage container is recommended to maintain freshness.

  • Page 41: Noise Test Information

    Redwood Global Ltd - ST6P Chapter 2: Safety instructions Operator and Maintenance Manual 2.4   NOISE TEST INFORMATION Machine Först ST6P Woodchipper 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 42: Decals

    Redwood Global Ltd - ST6P Chapter 2: Safety instructions Operator and Maintenance Manual 2.5   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 43 Redwood Global Ltd - ST6P 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...
  • Page 44 Redwood Global Ltd - ST6P Chapter 2: Safety instructions Operator and Maintenance Manual This page intentionally left blank 12-00-001 v4.0...

  • Page 45: 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 46: Connecting To The Tow Vehicle

    Redwood Global Ltd - ST6P 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 47: Figure 19 - Tow Hitch Handle

    Redwood Global Ltd - ST6P 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 48: Figure 20 - Tow Hitch Wear Indicator

    Redwood Global Ltd - ST6P Chapter 3: Transportation and storage Operator and Maintenance Manual Figure 20 - Tow hitch wear indicator 11. Insert the barrel lock for security. 12. Connect the machine trailer extension plug into the vehicle trailer socket.

  • Page 49: Towing The Machine

    Redwood Global Ltd - ST6P 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 50: Disconnecting From The Tow Vehicle

    Redwood Global Ltd - ST6P 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 51: Machine Lifting

    Redwood Global Ltd - ST6P 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 52: Removing The Discharge Chute

    Redwood Global Ltd - ST6P Chapter 3: Transportation and storage Operator and Maintenance Manual 3.5   REMOVING THE DISCHARGE CHUTE DANGER Do not remove the rear chute clamp when removing the chute. Doing so will result in the chute falling.

  • Page 53: Figure 24 - Remove Clamp And Nut

    Redwood Global Ltd - ST6P Chapter 3: Transportation and storage Operator and Maintenance Manual 5. Remove both the clamp and the clamp nut and put them somewhere safe. Figure 24 - Remove clamp and nut 6. Loosen the rear clamp by rotating the clamp lever anti-clockwise.

  • Page 54: Figure 26 - Remove Chute

    Redwood Global Ltd - ST6P Chapter 3: Transportation and storage Operator and Maintenance Manual 7. Using 2x hands, carefully slide the chute backwards removing it from the machine. Figure 26 - Remove chute 12-00-001 v4.0...

  • Page 55: Storage

    Redwood Global Ltd - ST6P 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 56: Take Out Of Storage

    Redwood Global Ltd - ST6P 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 57: 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 12-00-001 v4.0...

  • Page 58: Preparation For Use

    Redwood Global Ltd - ST6P 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 59: Positioning The Machine For Use

    Redwood Global Ltd - ST6P 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 60: Figure 28 - Hopper Tray Locking Latch

    Redwood Global Ltd - ST6P Chapter 4: Operation Operator and Maintenance Manual 2. Disengage both hopper tray locking latches (1, Figure 28). Figure 28 - Hopper tray locking latch 3. Lower the hopper tray in a controlled manner (do not drop the hopper tray).

  • Page 61: Starting The Machine

    Redwood Global Ltd - ST6P 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 62: Figure 32 - Key In The Engine Crank Position

    Redwood Global Ltd - ST6P Chapter 4: Operation Operator and Maintenance Manual Figure 32 - Key in the engine crank position • If the engine doesn't fire, turn the key to the OFF position and return to step • If the engine doesn't fire after trying three times, check for faults.

  • Page 63: Safety & Function Test

    Redwood Global Ltd - ST6P 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 64: Figure 34 - Feed Roller Controls

    Redwood Global Ltd - ST6P 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 65: Feed Roller Speed Adjustment

    Redwood Global Ltd - ST6P 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 35.    1. Turn dial to align number with paint spot.

  • Page 66: Shutting Down The Machine

    Redwood Global Ltd - ST6P Chapter 4: Operation Operator and Maintenance Manual 4.6   SHUTTING DOWN THE MACHINE To shut down safely, follow the procedure below. Reduce the speed to idle. Figure 36 - Idle 2. Allow the engine to run unloaded and idle for 30 seconds.

  • Page 67: Removing Blockages

    Redwood Global Ltd - ST6P 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 68: Figure 40 - Spring Hanger

    Redwood Global Ltd - ST6P Chapter 4: Operation Operator and Maintenance Manual Check the feed rollers: 8. Open the bonnet. 9. Open the chipping chamber cover. 10. Using a suitable tool, loosen the 4x nuts located on top of the 2x spring hangers.

  • Page 69: Figure 42 - Raising The Top Feed Roller Housing

    Redwood Global Ltd - ST6P Chapter 4: Operation Operator and Maintenance Manual 13. Lift the top feed roller (2, Figure 42) to the fully open position. Figure 42 - Raising the top feed roller housing 14. You should now have access to the feed chamber.
  • Page 70 Redwood Global Ltd - ST6P Chapter 4: Operation Operator and Maintenance Manual This page intentionally left blank 12-00-001 v4.0...

  • Page 71: 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  Opening the bonnet 5.7  Opening the chipping chamber cover 5.8  Removing the panel 5.9  Changing the blades 5.10  About blade sharpening 5.11  Turning or replacing the main anvil 5.12  Adjusting the main belt tension...

  • Page 72: Routine Maintenance

    Redwood Global Ltd - ST6P 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. ...

  • Page 73: Daily Checks

    Redwood Global Ltd - ST6P 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 2 - Daily checks Item Check Further action ✔...
  • Page 74 Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual Item Check Further action ✔ /✘   17  Check the battery Terminals secure   Clamp secure   Check the bonnet catches Secure 18      Function correctly 19 ...

  • Page 75: Weekly Maintenance Checks

    Redwood Global Ltd - ST6P 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 3 - Weekly checks Item Check Further action ✔ /✘...
  • Page 76 Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual Item Check Further action ✔ /✘ 17  Visually check all electrical wiring Cables and conduit secure and undamaged     Hoses secure 18  Visually check all hydraulic components  ...

  • Page 77: Engine Maintenance

    Redwood Global Ltd - ST6P 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 78: Opening The Bonnet

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.6   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 79: Opening The Chipping Chamber Cover

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.7   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 80: Figure 46 - Open Chipping Chamber Cover

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual Figure 46 - 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 81: Removing The Panel

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.8   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 82: Figure 48 - Remove Side Panel

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual Figure 48 - Remove side panel 12-00-001 v4.0...

  • Page 83: Changing The Blades

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.9   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 84: Figure 51 - Flywheel Locking Tool

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5. Open the chipping chamber cover. Figure 51 - Flywheel locking tool 6. Turn the flywheel until it is in the locking position. (Figure 52). 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 52).

  • Page 85: Figure 53 - Blade Removal

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual Figure 53 - 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 86: Figure 54 - Correct Position Of The Back Edge Of The Blade

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual Figure 54 - 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 87: About Blade Sharpening

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.10   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 88: Figure 56 - Blade Gaps

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual Side Anvil Flywheel Blade Anvil Inside Blade Gap Outside Blade Gap     Figure 56 - Blade gaps When changing the blades, make sure each blade bolt set is replaced every time the blades are changed.

  • Page 89: Turning Or Replacing The Main Anvil

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.11   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 90: Figure 59 - Anvil Removed

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 10. Using the slide hammer, extract the anvil (3, Figure 59) through the side of the chamber. Figure 59 - Anvil removed 11. Check the anvil seats inside the chamber for damage or wear.

  • Page 91: Figure 61 - Anvil Tight To The Bedplate

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual Figure 61 - 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 62).

  • Page 92: Adjusting The Main Belt Tension

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.12   ADJUSTING THE MAIN BELT TENSION The flywheel V belts must be checked for tension and condition.  If any belt shows signs of wear, surface damage, shredding, excessive glazing, or have been stretched to their limit, they must be replaced. ...

  • Page 93: Figure 65 - Loosen Main Tension Bolt

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual Figure 65 - Loosen main tension bolt b. With the bolts loosened, use a suitable tool to move the belt tensioner. Pressing against the belt will increase the tension and moving away from the belt reduces the tension.

  • Page 94: Hydraulic Oil Filter

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.13   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 95: Changing The Hydraulic Filter

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.14   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 96 Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 10. If the level of hydraulic oil in the tank is low, add more oil. 11. Before refitting a new filter, apply a small amount of hydraulic oil to the filter O-ring.​...

  • Page 97: Draining The Hydraulic Oil

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.15   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 98: Battery

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.16   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 99: Replacing The Battery

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.16.3   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 100: Charging The Battery

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.16.4   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 101: Jump Starting The Battery

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.16.5   JUMP STARTING THE BATTERY If the woodchipper has a flat battery, you can use a support vehicle to jump start the battery. WARNING When jump starting the battery of the woodchipper, switch off the engine of the support vehicle to avoid damaging the charging system.

  • Page 102: Oils, Fluids And Lubricants

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.17   OILS, FLUIDS AND LUBRICANTS Table 5 - Oils, fluids and lubricants Oils, Fluids, and Lubricants Item Assembly Product 1  Engine oil 5w30 API SJ or higher (fully-synthetic) 2 ...

  • Page 103: Fastener Tightening Torques

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.18   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 104: Tools And Accessories

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.19   TOOLS AND ACCESSORIES The following is a list of tools and accessories supplied with the machine. Table 7 - Tools and accessories Item Part Number Quantity Item Description Reference 1 ...

  • Page 105: Running Gear - Hitch & Axle

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.20   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 106: Service Schedule

    Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual 5.21   SERVICE SCHEDULE NOTICE Remember to carry out the Redwood Global Ltd standard inspection at every service. Table 8 - Service schedule Hours of Tasks Requirements operation...
  • Page 107 Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual Hours of Tasks Requirements operation and part numbers Perform all 300 hour tasks.​   1000 Perform all 100 hour tasks.​   Remove and replace hydraulic oil filter element.​...
  • Page 108 Redwood Global Ltd - ST6P Chapter 5: Maintenance Operator and Maintenance Manual This page intentionally left blank 12-00-001 v4.0...

  • Page 109: 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 12-00-001 v4.0...

  • Page 110: The Engine Doesn't Crank

    Redwood Global Ltd - ST6P 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 111: The Display Screen Is Blank

    Redwood Global Ltd - ST6P Chapter 6: Troubleshooting Operator and Maintenance Manual 6.3   THE DISPLAY SCREEN IS BLANK Possible cause Check Corrective action Loose CAN cable Check both ends of cable for Tighten if loose (communication cable security between screen and controller)

  • Page 112: The Woodchipper Suddenly Stops Running

    Redwood Global Ltd - ST6P 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 113: Hydraulic Oil Is Leaking

    Redwood Global Ltd - ST6P Chapter 6: Troubleshooting Operator and Maintenance Manual 6.7   HYDRAULIC OIL IS LEAKING Possible cause Check Corrective action Hydraulic oil level is too high Check hydraulic oil level Drain to correct level Loose hydraulic fitting...

  • Page 114: Hydraulics Schematic

    Redwood Global Ltd - ST6P Hydraulics schematic Operator and Maintenance Manual HYDRAULICS SCHEMATIC   12-00-001 v4.0...

  • Page 115: Förstassist

    Redwood Global Ltd - ST6P 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 116: Warranty

    Redwood Global Ltd - ST6P 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 117: Certification

    Redwood Global Ltd - ST6P 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 118: Service History

    Redwood Global Ltd - ST6P Service History Operator and Maintenance Manual SERVICE HISTORY Date Service Hours Agent stamp   Date Service Hours Agent stamp type type                            ...

  • Page 119: Index

    Redwood Global Ltd - ST6P Index Operator and Maintenance Manual Exterior components  19 INDEX Fastener Tightening Torques  103 Feed roller controls  25 Feed speed adjustment  65 About blade sharpening  87 FörstAssist  115 Adjusting the main belt tension  92 Forward and backwards buttons  25 Autointelligence system  24 Fuel recommendations  39 Battery  98 General safety  38...
  • Page 120 Redwood Global Ltd - ST6P Index Operator and Maintenance Manual Obtaining documentation and Take out of storage  56 information  14 Technical data  17 Oils, fluids and lubricants  102 The display screen is blank  111 Opening the Bonnet  78 The engine cranks but doesn't fire  110 Opening the chipping chamber The engine doesn't crank  110...
  • Page 121   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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