Redwood Forst ST6p User manual

Redwood Global Ltd,
Unit 86, Livingstone Road, Walworth Business Park, Andover,
Hampshire. SP10 5NS. United Kingdom
pWoodchipper
USER MANUAL
ENGLISH
21/11/2018 Revision 3

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Table of Contents
Introduction............................................................................................................................................3
Purpose of machine.............................................................................................................................4
Safety.....................................................................................................................................................7
Safe working .....................................................................................................................................7
Machine lifting...................................................................................................................................8
DOs and DON’Ts .............................................................................................................................9
Noise test information........................................................................................................................10
Machine operation..............................................................................................................................11
Machine control panel, start/stop & operating settings ............................................................12
Ignition switch .................................................................................................................................12
Emergency Stopping –Standard Program ....................................................................................15
Emergency Stopping –Orange Button Program...........................................................................16
Feed jam & blockages.......................................................................................................................17
Transportation.....................................................................................................................................18
Attaching to the vehicle tow hitch ................................................................................................19
Unhitching the machine.................................................................................................................19
Routine maintenance.........................................................................................................................20
Engine maintenance......................................................................................................................21
Fastener tightening torques..........................................................................................................21
Service schedule............................................................................................................................22
Covers: engine, chipping chamber, side panels.................................................................24
Engine bay ......................................................................................................................................25
Blade changing……………………………………………………………….…………………...27
Blade sharpening ...........................................................................................................................28
Hydraulic oil filter............................................................................................................................29
Battery..................................................................................................................................................32
Battery safety information.............................................................................................................32
Storage and transport....................................................................................................................32
Initial operation ...............................................................................................................................32
Battery removal & maintenance...................................................................................................32
Charging..........................................................................................................................................33
Jump starting...................................................................................................................................33
Taking battery out of service ........................................................................................................34
Parts lists.............................................................................................................................................35
Hopper tray touch sensor..........................................................................................................35

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Chipping chamber assembly........................................................................................................36
Chipping chamber assembly - Bottom feed...............................................................................36
Chipping chamber assembly –Bottom feed & Anvil.................................................................38
Chipping chamber assembly - Drive..........................................................................................39
Chipping chamber assembly - Flywheel drive..........................................................................40
Chipping chamber assembly - Bottom feed roller cover..........................................................41
Chute assembly............................................................................................................................42
Top feed roller assembly...............................................................................................................43
Flywheel assembly.........................................................................................................................44
Fuel Tank Assembly......................................................................................................................45
Hydraulic Pump Assembly............................................................................................................46
Light board assembly.....................................................................................................................47
Belt Tensioner assembly...................................................................................................................48
Running gear –hitch & axle..........................................................................................................49
Hydraulics circuit diagram.................................................................................................................49
Electrical circuit diagram –Mechanical & touch sensor hopper .................................................50
Decals....................................................................................................................................................50
Manufacturer’s Statutory Plate.........................................................................................................52
Warranty..............................................................................................................................................53
CE Certificate......................................................................................................................................54

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Introduction
Thank you for becoming the owner of this Redwood Global Ltd, Forst ST6p
woodchipping machine. By observing the contents of this manual, we hope the
machine gives safe and productive service. This user manual is intended for the
owner/operator to safely and effectively operate this machine and carry out routine
maintenance between services. This is not a comprehensive service manual. See
Service Schedule for routine maintenance and when to take the machine to a service
specialist. For engine maintenance, please refer to the engine manual supplied with
this machine.
This machine has been through a pre-delivery inspection before leaving the factory
and is ready to use.
Before use and as a minimum, the safety and machine operation
sections covered on pages 4 to 19 must be read and understood.
Failure to do so could result in serious injury or loss of life to the
operator and others nearby.Also, damage to property and this machine may
occur. Please observe and obey all warning signs (decals) located on the machine.
Their meaning is covered in this manual under decals.
All personnel working with this machine must be adequately trained in its use and
most importantly, follow the advice on safe working practices.
Redwood Global Ltd endeavour to continuously develop and improve its products.
They reserve the right to make changes at any time, without notice or incurring any
obligation.
Continuous improvement will affect machine design and production so there may be
minor discrepancies between the actual product and this manual.
This manual must remain with the machine for reference by operators and includes
hiring or if the machine is resold.

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Purpose of machine
The Forst ST6p is designed to reduce wood material up to 150mm diameter to
woodchip. This machine is capable of processing up to 5 tonnes of wood per hour.
Engine
Briggs Vanguard V twin EFI
Roller feed
Twin series hydraulic motors
Maximum power
27.2 kW (37hp)
Maximum material diameter
150mm
Cooling method
Air cooled
Fuel capacity
30 litres
Overall weight
745kg
Hydraulic oil capacity
18 litres
Starting method
Electric
Material processing capacity
5 Tonnes/Hr
Fuel type
Petrol

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Exterior component identification
Figure 1
1
TRIP BAR
2
HOPPER TRAY LATCH
3
HOPPER
4
CHIPPING CHAMBER COVER
5
CHUTE HOOD
6
CHUTE
7
MACHINE LIFTING EYE
8
ENGINE COVER
9
MANUFACTURER'S STATUTORY PLATE
10
SERIAL NUMBER
11
JOCKEY WHEEL HANDLE
12
VEHICLE CONNECTION LEAD
13
TOW HEAD
14
MACHINE LIGHT BOARD SOCKET
15
ENGINE COVER LATCH
16
CHIPPING CHAMBER
17
THROTTLE
18
GREASE POINT
19
IGNITION SWITCH
20
CONTROL VALVE FEED SPEED ADJUSTMENT
21
CONTROL PANEL
22
FUEL TANK
23
LIGHT BOARD
24
FEED START/STOP TOUCH SENSORS
25
HOPPER TRAY

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Figure 2
1
CHUTE HOOD LOCK HANDLE
2
CHUTE HANDLE
3
CHUTE ROTATION LOCK HANDLE
4
BATTERY
5
REMOVEABLE NUMBER PLATE HOLDER
6
7

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Safety
Safe working
Before using this machine, make sure that you are trained and fluent in its operation.
Know the location of and how to use all the safety features. Know how to control the
feed and stop the machine in an emergency. Be familiar with the hazards and safe
working practices to prevent injury and damage to property and machine. Also be
aware of the legal restrictions for personnel and towing with vehicles.
1. The minimum age for service personnel is 18 years. Personnel aged 16 can
use the machine for training under supervision by a suitably trained person of
18 years or over.
2. Operators and personnel working with this machine must not be under the
influence of alcohol, drugs or medication that would impair judgement,
concentration or reaction times. Excessive tiredness is also a risk.
3. In use, woodchip and debris are ejected with considerable force from the
chute and can travel up to 10m. Make sure the chute directs woodchip to a
safe location so that no one can be harmed or property damaged. Do not
allow discharge to be directed onto roads or public rights of way.
4. Maintain a 10m exclusion zone around the machine and clearly mark if in a
public area. Keep this area free of material build up.
5. Make sure the machine is on even, level and stable ground and cannot move
or topple when in use. Use wheel chocks if necessary.
6. Keep children and animals well away from the working area.
7. The machine operator must wear protective equipment:
a. Chainsaw safety helmet (EN 397) with mesh visor (EN 1731)
b. Correctly rated ear defenders (EN 352)
c. Work gloves with elasticated wrist bands.
d. Steel toe cap boots (EN345-1)
e. Close fitting heavy duty non-snag clothing. Hi-viz clothing (EN 471) if
needed.
f. Protect breathing with a face mask if appropriate. Some plant material
can give off harmful dust and poisonous vapours. This may cause
respiratory problems or serious poisoning. Check the material to be
processed before starting.
g. DO NOT wear rings, bracelets, watches, jewellery or anything that
could be caught on the material being fed and draw you into the
machine.

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8. All personnel operating or feeding material into the machine must wear heavy
duty non-snag clothing to help prevent being caught on material and drawn
into the machine. The feed mechanism of this machine uses high powered
hydraulic motors to drive sharp toothed rollers that feed material into the
cutting blades. DO NOT take risks with it. NEVER ASSIST ANY MATERIAL
INTO THE FEED ROLLERS WITH HANDS OR FEET.Use the wooden
paddle or further long material if necessary.
9. Never climb onto the hopper area while the machine is in operation.
10.CAUTION! –Keep hands and feet outside the hopper. Do not attempt to force
material into the machine by hand –use a piece of wood if necessary.
11.Material can be forcibly ejected from the hopper towards the operator. Ensure
full head and face protection is worn.
12.Very twisted material should be trimmed into manageable pieces. Failure to
do this can result in material extending outside the hopper, moving
aggressively side-to-side creating a hazard to the operator.
13.Do not try to force material over 150mm in diameter into the machine.
14.Carefully site the machine so operators can work furthest from any local
danger. For example, on a road side, place machine so operators work on
the verge and not in the road exposed to traffic.
Machine lifting
The lifting eye is designed for securely holding the machine’s weight only. Do not
use hoist hook directly on the lifting eye. Use a correctly rated safety shackle.
Inspect lifting eye before each use and do not use if damaged.
Figure 3

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DOs and DON’Ts
DO stop the machine before making
any adjustments, refuelling or
cleaning.
DO make sure the machine has
stopped rotating and remove the
ignition key before any maintenance or
the machine is left unattended.
DO ensure that the machine is level,
well supported and cannot move
during use.
DO run the machine at full throttle.
DO conduct regular machine checks
for visual fluid leaks.
DO take regular breaks. Wearing
protective equipment can be hot and
tiring leading to a lack of
concentration, increasing the risk of
having an accident.
DO keep hands, feet and clothing out
of feed area, chute and moving parts.
DO NOT use machine in poor visibility
or insufficient light to see clearly.
DO NOT use or attempt to start the
machine without the discharge chute
or guards correctly and securely fitted.
DO NOT stand directly in front of the
in-feed hopper when using the chipper.
Stand to one side.
DO NOT allow the following to enter
the machine as damage is likely:
BRICKS
METAL
STRING
GLASS
CLOTH
RUBBER
PLASTIC
ROOTS
STONES
BEDDING
PLANTS
DO NOT stand in front of the chute.
DO NOT smoke when refuelling.
Petrol fuel is highly flammable and
explosive in certain conditions.
DO NOT let anyone who has not
received instruction, operate the
machine.
DO NOT climb on the machine at any
time except for a tracked machine
ride-on plate where fitted.
DO NOT handle material partially
engaged in the machine while in
operation.
DO NOT touch any exposed wiring
while the machine is running.