Timberwolf TW 13/75G Instruction Manual
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TW 13/75G WOOD CHIPPER
INSTRUCTION MANUAL
(ORIGINAL INSTRUCTIONS)
© Copyright Timberwolf Ltd 2019
The content of this publication may not be copied, reproduced, republished, posted, broadcast, transmitted
or used in any way in any medium without the written permission of Timberwolf Ltd.
TW 13/75G
CONTENTS
C190-0187 25.01.2019 Rev: 1.0
Section Page No.
INTRODUCTION 2
PARTS LOCATOR 3
SAFE WORKING 5
Operator’s Personal Protective Equipment 5
Basic Woodchipping Safety 5
General Safety Matters 5
Noise Test 6
STORAGE 7
Storing the Chipper 7
OPERATING INSTRUCTIONS 8
Recommissioning after storage 8
Safe Transportation 8
Delivery 8
Manual Controls 8
Starting the Engine 9
Stopping the Engine 9
Emergency Stopping 9
Daily Checks Before Starting 9
Starting to Chip 9
Chipping 9
Blockages 10
Blade Wear 10
Refuelling 10
Troubleshooting 11
SERVICE INSTRUCTIONS 12
Service Schedule 12
Safe Maintenance 13
Safe Lifting of the Chipper 13
Spares 13
Check Fittings 13
Hazardous Materials and End of Machine Life 14
Change Blades 15
Tension Drive Belts 16
Grease the Rotor Bearings 16
Anvil Changing 16
Engine Servicing 16
WARRANTY STATEMENT 17
DECLARATION OF CONFORMITY 18
IDENTIFICATION PLATE 19
DECALS 20
CIRCUIT DIAGRAM 22
V-BELT TENSIONING TABLE 23
WARRANTY SERVICE CHECK RECORD 24
SERVICE RECORD 25
PARTS LISTS 26
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1600 mm (815 mm with funnel removed)
1565mm
(815mm with
funnel removed)
800mm
Designed to chip solid wood material up to 75mm in diameter and capable of
chipping over 0.75 tonnes of brushwood per hour.
PURPOSE
Engine type:
Honda 4 stroke OHV
Maximum power:
9.6kW (13hp)
Cooling method:
Air cooled
Overall weight:
188kg
Starting method:
Recoil
Type of feed:
Gravity
Maximum diameter material:
75 mm (3”)
Fuel capacity:
6.5 litres
Material processing capacity:
Up to 0.75 tonnes/hr
Fuel type:
Unleaded petrol
DIMENSIONS
TW 13/75G
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INTRODUCTION
C190-0187 25.01.2019 Rev: 1.0
Thank you for choosing Timberwolf. Timberwolf chippers are designed to give safe
and dependable service if operated according to the instructions.
IMPORTANT HEALTH AND SAFETY INFORMATION
Before using your new chipper, please take time to read this manual. Failure to do
so could result in:
- personal injury
- equipment damage
- damage to property
- 3rd party injuries
This manual covers the operation and maintenance of the Timberwolf TW 13/75G.
All information in this manual is based on the latest product information available at
the time of purchase.
All the information you need to operate the machine safely and effectively is
contained within pages 3 to 11. Ensure that all operators are properly trained for
operating this machine, especially in safe working practices.
Timberwolf's policy of regularly reviewing and improving their products may involve
major or minor changes to the chippers or their accessories. Timberwolf reserves
the right to make changes at any time without notice and without incurring any
obligation.
Due to improvements in design and performance during production there may be,
in some cases, minor discrepancies between the actual chipper and the text in this
manual.
The manual should be considered an important part of the machine and should
remain with it if the machine is resold.
CAUTION or WARNING
BE AWARE OF THIS SYMBOL
AND WHERE SHOWN,
CAREFULLY FOLLOW THE
INSTRUCTIONS.
THIS SYMBOL INDICATES
IMPORTANT SAFETY
MESSAGES IN THIS MANUAL.
WHEN YOU SEE THIS
SYMBOL, BE ALERT TO THE
POSSIBILITY OF INJURY TO
YOURSELF OR OTHERS AND
CAREFULLY READ THE
MESSAGE THAT FOLLOWS.
ALWAYS FOLLOW SAFE
OPERATING AND
MAINTENANCE PRACTICES
TW 13/75G SPECIFICATION
Serial No. Location.
The serial number
can be found on
the identification
plate located on
the rotor housing.
TW 13/75G
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PARTS LOCATOR
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THE TW13/75G HAS THE FOLLOWING FIXED GUARDS FOR PROTECTION OF THE OPERATOR, CHIPPER
AND ENVIRONMENT:
Funnel: Protects the user from injuries from moving parts and ejected material during operation. •
Exhaust Guard: Protects exhaust from damage. Protects the user from heat injuries. •
Top Rotor Housing Guard: Protects user from rotational parts e.g. cutting blades. The interlocking switch disengages •
the engine when the hatch is opened to stop the chipper running.
Safety Switch Guard: Prevents user overriding the interlocking switch. •
Belt Guard: Protects the user from rotational parts e.g. belts and pulleys, hot surfaces and engine fluids. Protects •
machine from ingress of environmental debris.
Guards may be removed for maintenance only, as described in the Service Instruction pages of this manual. Ensure guards
remain in place throughout operation.
GRIP
FUNNEL
DISCHARGE BUCKET
TOP ROTOR HOUSING
GUARD
BELT GUARD
ENGINE
PETROL TANK
AIR FILTER COVER
DISCHARGE HANDLE
OPENING HANDLE
ROTOR HOUSING CATCH BOLT
SAFETY SWITCH
MANUAL CANNISTER
LIFTING EYE
EXHAUSTGUARD
TW 13/75G
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PARTS LOCATOR
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TOOL BOX CONTENTS:
Copper Ease •
Rotor Retaining Pin •
Combination Spanner (17mm/19mm) •
Blade bolts •
Star (torx) tip and driver •
Shaft & handle tools•
ROTOR
FAN BLADE
CUTTER BLADE
ROTOR DRIVE PULLEY
REAR BEARING
HOUSING
ENGINE PROTECTOR
ENGINE PULLEY
EMERGENCY STOP
FEED FUNNEL CURTAINS
FRONT BEARING
HOUSING
5 / 32
SAFE WORKING
Always stop the chipper engine before making any adjustments, refuelling or cleaning. •
Always check the rotor has stopped rotating before maintenance of any kind, or whenever the machine is to be left •
unattended. If in doubt, look through the in-feed funnel to see if rotor is still moving.
Always check the machine is well supported and cannot move. If working on an incline, position on solid ground, across •
the slope.
Always operate the chipper with the engine set to maximum speed when chipping. •
Always check (visually) for fluid leaks. If found, resolve the leak before operating the chipper. •
Always take regular breaks. Wearing personal protective equipment for long periods can be tiring and hot. •
Always keep hands, feet and clothing out of feed opening, discharge and moving parts. Under no circumstances should •
you reach into the funnel.
Always keep the operating area clear of people, animals and children. •
Always keep the operating area clear from debris build up. •
Always keep clear of the chip discharge tube. Foreign objects may be ejected with great force. •
Always ensure protective guarding is in place before commencing work. Failure to do so may result in personal injury •
or loss of life.
Always operate the chipper in a well ventilated area - exhaust fumes are dangerous. •
Ensure a fire extinguisher is available on site. •
Ensure a personal first aid kit and hand cleaning materials are available (e.g. waterless skin cleanser).•
TW 13/75G
C190-0187 25.01.2019 Rev: 1.0
WARNING
Chainsaw safety helmet (EN 397) fitted with mesh visor (EN 1731) and •
ear defenders (EN 352).
Work gloves with elasticated wrist. •
Steel toe cap safety boots (EN 345-1). •
Close fitting heavy-duty non-snag clothing. High-visibility clothing (EN •
471) if risk assessment identifies the need.
Face mask if appropriate. •
DO NOT wear rings, bracelets, watches, jewellery or any other items that •
could be caught in the material and draw you into the chipper.
OPERATOR'S PERSONAL PROTECTIVE EQUIPMENT PPE
BASIC WOODCHIPPING SAFETY
The operator should be aware of the following points:
Maintain a safety exclusion zone around the chipper of at least 10 metres for the general public or employees without •
adequate protection. Use hazard tape to identify this working area and keep it clear from debris build up. Chips should
be ejected away from any area the general public have access to.
Hazardous material - Some species of trees and bushes are poisonous. The chipping action can produce vapour, spray •
and dust that can irritate the skin. This may lead to respiratory problems or even cause serious poisoning. Check the
material to be chipped before you start. Avoid confined spaces and use a face mask if necessary.
Be aware when the chipper is processing material that is an awkward shape. The material can move from side to side •
in the funnel with great force. If the material extends beyond the funnel, the brash may push you to one side causing
danger. Badly twisted brash should be trimmed before being chipped to avoid thrashing in the feed funnel.
Be aware that the chipper can eject chips out of the feed funnel with considerable force. Always wear full head and •
face protection.
Always work on the side of the machine furthest from any local danger, e.g. not road side. •
Never leave the chipper unattended when running. Machines must be supervised at all times when in use. •
In the event of an accident, stop the machine and call the emergency services immediately.•
The chipper will feed material
through on its own. To do this, it
relies on sharp blades on the
chipper rotor. To keep the blades
sharp, only feed the machine with
clean brushwood. DO NOT put
muddy/dirty wood, roots, potted
plants, bricks, stones or metal into
the chipper.
GENERAL SAFETY MATTERS
TW 13/75G
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SAFE WORKING
C190-0187 25.01.2019 Rev: 1.0
GENERAL SAFETY MATTERS
Do not operate chipper unless available light is sufficient •
to see clearly.
Do not use or attempt to start the chipper without the •
feed funnel and guards securely in place.
Do not stand directly in front of the feed funnel when •
using the chipper. Stand to one side.
Do not smoke when refuelling. •
Do not let anyone who has not received •
instruction operate the machine.
Do not climb on the machine at any time. •
Do not handle material that is partially •
engaged in the machine.
Do not touch any exposed wiring while the machine is •
running.
Do not use the chipper inside buildings.•
Noise levels above 80dB (A) will be
experienced at the working position.
Prolonged exposure to loud noise may
cause permanent hearing loss. All
persons within a 4 metre radius must
also wear good quality ear protection
(EN 352) at all times to prevent possible
damage to hearing.
Guaranteed Sound
Power: 120dB (A)
As required by Annex III of Directive
2000/14/EC “Noise Emission in the
environment by equipment for use
outdoors”. Tested according to BS EN
ISO 3744:2010.
NOISE TEST
Machine: TW 13/75G
Notes: Tested chipping 40mm x 40mm corsican pine 1.5m in length
DO NOT ALLOW
THE FOLLOWING
TO ENTER THE
MACHINE, AS
DAMAGE IS
LIKELY
BRICKS STRING ROOTS BEDDING
PLANTS
STONES METAL GLASS RUBBER
CLOTH PLASTIC
96.0 dB
92.9 dB
R= 4 metres
R= 10 metres
9
0
.
3
d
B
C
a
l
c
u
l
a
t
e
d
9
0
.
3
d
B
C
a
l
c
u
l
a
t
e
d
9
0
.
3
d
B
C
a
l
c
u
l
a
t
e
d
98.0 dB
103.1 dB
96.2 dB
95.9 dB
TW 13/75G
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STORAGE
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STORING THE CHIPPER
Perform the following tasks at the storage intervals indicated, following procedures described within this manual.
Storage time
Maintenance Tasks
<1
month
1-6
months
6-12
months
>12
months
Allow the engine to cool down.
ü ü ü ü
Clean the chipper, removing all woodchips.
ü ü ü ü
Perform routine maintenance.
ü ü ü ü
Check all fasteners and retighten.
ü ü ü ü
Remove all fuel from the tank. NOTE: Either allow the machine to run until all fuel has been used,
or drain from the plug provided. If necessary, siphon the fuel into an approved storage container
(refer to re-fuelling section). Drain prior to moving machinery, to prevent spillage.
ü ü ü ü
Disassemble the spark plug (petrol machines).
ü ü ü ü
Where paint is damaged, touch up paint or treat with a lubricant. NOTE: Original paint colours
are available from Timberwolf dealers.
ü ü ü ü
Store the chipper in a dry place at +5°C to +40°C. NOTE: Timberwolf strongly recommends the
machine is stored in a sheltered location, protected from rain. If the machine is stored outside,
it must be well protected with tarpaulin.
x
ü ü ü
If relative humidity of the storage environment is > 60%, the shaft of the engine must be rotated
by hand 1-2 revolutions bi-weekly. Prior to rotating the shaft, 20 to 30 ml of engine oil should be
poured onto the bearing liner.
x
ü ü ü
Every 3 months, inspect the machine as per <1 month column.
x x
ü ü
Clean out and drain all lubrication lines, including grease pipes, fuel lines and oil reservoirs.
Replace with new lubricants. NOTE: This should be performed at 6 month intervals (months 6 &
12) until recommissioned. Drain prior to moving machinery, to prevent spillage.
x x
ü ü
Keep machine in original container/packaging or equivalent protection and store in a location
free from extremes in temperature, at a min. temp. of +5°C and max. +40°C, humidity and
corrosive environments. NOTE: If the storage location is cold, damp or severe humidity changes
exist, adequate action should be taken to safeguard machinery.
x x x
ü
If machine is exposed to environmental conditions such as humidity during storage, inspect
bearing lubrication system for presence of water. If water is detected in the lubricant, flush out
the bearing housing and re-lubricate immediately.
x x x
ü
All breathers and drains are to be operable while in storage and/or the moisture drain plugs
removed. The machinery must be stored so the drain(s) are at the lowest point, while the
machine is in its stable position.
x x x
ü
Follow the recommissioning process before operation.
x
ü ü ü
NOTE:
Regardless of storage time, all Timberwolf machines must be in a stable, level position to ensure the machine is unable to
roll or move unintentionally during storage.
TW 13/75G
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IGNITION SWITCH
CHOKE
LEVER
FUEL VALVE
THROTTLE
CONTROL LEVER
Refer to the Honda engine
manual for detailed instructions
of how to start and control the
GX390 engine.
OFF
ON
STARTER
HANDLE
SAFE TRANSPORTATION
The TW 13/75G chipper may be transported as a unit or with the feed funnel removed. •
Take care when loading the TW 13/75G as it is 188 kg in weight. •
Strap the chipper down firmly before beginning a journey (do not use feed funnel handles to •
strap down machine).
Ensure no debris or water is trapped in the rotor housing that may spill during transit. •
Turn the fuel valve OFF and keep the engine upright.•
RECOMMISSIONING AFTER STORAGE
Ensure machine is stable. •
Remove all guards and check all fasteners. If necessary, •
retighten as described within this manual.
Ensure feed funnel is free from foreign objects e.g. tools •
and clothing.
Lower and raise feed funnel into its open and closed •
positions to confirm functionality.
Check fuel within engine and top up accordingly. * •
Inspect all internal parts e.g. drive belts, taper locks and •
shaft keyways.
Check belt tension as described within this manual. •
Inspect cutting blades to confirm they are sharp and •
suitable for use.
Undertake electrical diagnostic continuity check, to •
confirm circuit is complete.
Re-lubricate all grease pipes. Remove pipes and bleed •
the system prior to use, if necessary. *
Follow daily checks before starting, as described within •
this manual.
Start the machine. •
Run for 15 minutes at half throttle, prior to any cutting •
activity, to clear the combustion engine. Once
complete, bring the machine onto full throttle for a
further 5 minutes.
*Storage fluids should be replaced, DO NOT USE old
stagnate fluids.
DELIVERY
All Timberwolf TW 13/75G machines have a full pre - delivery inspection before leaving the factory and are ready to use.
Read and understand this instruction manual before attempting to operate the chipper. In particular, read pages 5-6 which
contain important health and safety information and advice.
MANUAL CONTROLS
There are five controls on the Honda GX 390 K1 that are required for daily usage of the TW 13/75G chipper.
OPERATING INSTRUCTIONS
TW 13/75G
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OPERATING INSTRUCTIONS
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STARTING THE ENGINE
Turn the fuel valve to the ‘ON’ position. •
Move the choke lever to the ‘CLOSE’ position. NOTE: Do not use the choke if the engine is warm or the air •
temperature is high.
Move the throttle control lever slightly to the left. •
Turn the ignition switch to the ‘ON’ position. •
Pull the starter handle lightly until resistance is felt, then pull briskly. •
CAUTION: Do not allow the starter handle to snap back against the engine. Return it gently to prevent damage to
the recoil mechanism.
As the engine warms up, gradually move the choke lever to the ‘OPEN’ position. •
Position the throttle control lever for the desired engine speed.•
Should the machine need to be stopped in an emergency, push the red emergency stop button positioned on the funnel.
This stops all power to the engine, bringing the machine to a complete stop. The engine cannot be restarted until the
button is restored to its original position. Before disengaging the emergency stop button, ensure the engine has come to
a complete standstill then inspect the machinery to determine the reason for activation.
EMERGENCY STOPPING
STOPPING THE ENGINE
Move the throttle control lever to idle and allow to run for one minute. •
Turn the fuel valve to the ‘Off’ position. •
Turn the ignition switch to the 'Off' position (as shown in the diagram on page 8). •
Locate the machine on firm level ground. •
Check engine oil level. •
Check the fuel valve is open. •
Check all guards are in place. •
Check the discharge unit is pointing in a safe direction. •
Check the feed funnel to ensure no objects are inside. •
For parts location see diagrams on pages 3 & 4.
DAILY CHECKS BEFORE STARTING
Wood up to 75 mm in diameter can be fed into the feed funnel. Enter it into the funnel butt end first. Release the material
before it engages the rotor. Some pieces of wood may move around significantly whilst being chipped. The wood will be
drawn into the cutting blade quite quickly, be ready for this to happen. Stand well clear.
A piece of wood which is too tough or too large for the chipper will slow the engine down. When this happens it is possible
to hold back the branches that are being chipped and allow the engine to regain its speed again.
If a piece of wood gets stuck in the funnel and it cannot be chipped due to its size or shape, it will need to be removed.
Stop the engine and wait for moving parts to stop before removing the material. Trim the branch until it is a suitable
shape for the chipper to accept.
STARTING TO CHIP
WARNING
DO NOT USE OR
ATTEMPT TO START THE
CHIPPER WITHOUT THE
PROTECTIVE GUARDING
AND DISCHARGE UNIT
SECURELY IN PLACE.
FAILURE TO DO SO MAY
RESULT IN PERSONAL
INJURY OR LOSS OF LIFE.
Check that the chipper is running smoothly. •
Stand to one side of the feed funnel. •
Proceed to feed material into the feed funnel. •
CHIPPING
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