Timberwolf TW 18/100G Instruction Manual

timberwolf-uk.com

TW 18/100G WOOD CHIPPER

UK INSTRUCTION MANUAL

(ORIGINAL INSTRUCTIONS)

© Copyright Timberwolf Ltd 2018

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.

CONTENTS

C190-0191 01.03.2019 Rev: 2.0

Section Page No.
INTRODUCTION 2
PARTS LOCATOR 3
SAFE WORKING 5

Operator’s Personal Protective Equipment (PPE) 5
Basic Woodchipping Safety 5
General Safety Matters 5
Noise Test 6
Safe Transportation 7
Hitching onto the Tow Ball 7
Unhitching the Chipper 7

STORAGE 8
Storing the Chipper 8
OPERATING INSTRUCTIONS 9

Recommissioning after storage 9
Delivery 9
Engine Controls 9
Starting the Engine 9
Stopping the Engine 9
Emergency Stopping 9
Daily Checks Before Starting 10
Discharge Controls 10
Starting to Chip 10
Chipping 10
Blockages 11
Blade Wear 11
Fuel Level Indicator 11
Refuelling 11
Troubleshooting 12

SERVICE INSTRUCTIONS 13

Service Schedule 13
Safe Maintenance 14
Safe Lifting of the Chipper 14
Spares 14
Battery Removal and Maintenance 14
Check Fittings 14
Hazardous Materials and End of Machine Life 15
Battery Safety Information 16
Change Blades 17
Tension Drive Belts 17
Grease the Discharge Flange 17
Engine Servicing 17

WARRANTY STATEMENT 18
DECLARATION OF CONFORMITY 19
IDENTIFICATION PLATE 20
DECALS 21
CIRCUIT DIAGRAM 23
V-BELT TENSIONING TABLE 24
WARRANTY SERVICE RECORD CHECK 25
SERVICE RECORD 26
PARTS LISTS 27

1 / 37

TW 18/100G

The Timberwolf TW 18/100G is designed to chip solid wood material up to 100mm
in diameter and capable of chipping over 1.5 tonnes of brushwood per hour.

PURPOSE

Engine type:

Briggs & Stratton V-Twin
(electric start)

Maximum power:

13.4kW (18hp)

Cooling method:

Air cooled

Overall weight:

385kg

Starting method:

Electric

Type of feed:

Gravity

Maximum diameter material:

100mm (4")

Fuel capacity:

8.5 litres

Material processing capacity:

1.5 tonnes/hr
Fuel type:

Unleaded petrol

DIMENSIONS

TW 18/100G

2 /37

INTRODUCTION

C190-0191 01.03.2019 Rev: 2.0

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 18/100G. 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 18/100G SPECIFICATION

Serial No. Location.

The serial number

can be found on

the identification

plate located on

the chassis beam.

2065mm (1570mm with discharge removed)

2910mm (2560mm with feed tray closed)

1280mm

TW 18/100G

3 /37

PARTS LOCATOR

C190-0191 01.03.2019 Rev: 2.0

FUNNEL

DISCHARGE BUCKET

TOP ROTOR

HOUSING GUARD

BELT GUARD

TOW HEAD

JOCKEY

WHEEL

ASSEMBLY

DISCHARGE TUBE

DISCHARGE CLAMPS

DRAW BAR

CONTROL PANEL

FUEL TANK

EXHAUST

SKID PLATE RESTRAINING CABLE

ANTI-TRAP BAR

RAIN FLAP

REFLECTORS

THE TW 18/100G 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. •
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.
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.

EMERGENCY STOP

MANUAL

CANNISTER

TW 18/100G

4 /37

PARTS LOCATOR

C190-0191 01.03.2019 Rev: 2.0

ROTOR

FAN SECTION (x 2)

CUTTER BLADES

ENGINE DRIVE PULLEY

DRIVE BELTS

ROTOR DRIVE PULLEY

DRIVE BELT
TENSIONER PULLEY

BATTERY COMPARTMENT

TOOL BOX CONTENTS:

Copper Ease •
Lock Unit Keys x 2 •
Ignition Keys x 2 •
Combination Spanner (17mm/19mm) •
Blade bolts •
Star (torx) tip and driver•

FEED FUNNEL CURTAINS

FRONT BEARING HOUSING

BLADE ACCESS COVER

5 /37

SAFE WORKING

C190-0191 01.03.2019 Rev: 2.0

TW 18/100G

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-visability 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

GENERAL SAFETY MATTERS

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.

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, remove the key and call the emergency services immediately.•

Always stop the chipper engine before making any adjustments, refuelling or cleaning. •
Always check the rotor has stopped rotating and remove the chipper ignition key 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. •
Always use a push stick to push in short pieces. 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 18/100G

6 /37

SAFE WORKING

C190-0191 01.03.2019 Rev: 2.0

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, guards and discharge unit 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: 125dB (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 18/100G
Notes: Tested chipping 50mm x 50mm 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

91.2 dB

96.7 dB

101 dB

R= 4 metres

109.3 dB

R= 10 metres

9

5

d

B

C

a

l

c

u

l

a

t

e

d

9

5

d

B

C

a

l

c

u

l

a

t

e

d

9

5

d

B

C

a

l

c

u

l

a

t

e

d

95.5 dB

97.6 dB

TW 18/100G

7 /37

SAFE WORKING

C190-0191 01.03.2019 Rev: 2.0

Check ball head is well greased. •
Wind jockey wheel assembly anticlockwise until the tow •

head is above the height of the ball hitch on the vehicle.
Reverse vehicle so the ball hitch is directly below •

the tow head.
Attach breakaway cable to a strong point on the vehicle, •

not the ball hitch.
Grasp handle on tow head and push back catch with •

thumb.
Wind jockey wheel assembly clockwise, to lower the •

tow head onto the ball hitch.
Release handle and continue to wind jockey wheel •

clockwise. The tow head should snap into place on the
ball hitch. If it doesn't, repeat previous 2 steps.

Wind jockey wheel up until fully retracted and the •
jockey wheel frame is seated in its notch on the stem.
The chipper weight should be fully on the vehicle.

Check jockey wheel handle is secure before •
transportation. Do not overtighten jockey wheel
handle.

Release jockey wheel clamp and slide the jockey •
wheel assembly fully up.

Tighten clamp on jockey wheel assembly. •
Connect electrical plug to socket on rear of towing •

vehicle and check operation of all the trailer and vehicle
lights.

The chipper is now properly attached to the vehicle.•

SAFE TRANSPORTATION

HITCHING ONTO THE TOW BALL

UNHITCHING THE CHIPPER

Ensure the chipper will not roll away after being •
disconnected from the vehicle.

Disconnect the electrical cable from the vehicle socket •
and stow in the dock provided on the chassis when not
in use.

Release breakaway cable and stow in the dock provided •
on the chassis when not in use.

Release the jockey wheel assembly clamp. •
Lower the jockey wheel assembly fully. •
Retighten the jockey wheel assembly clamp. •

Wind the jockey wheel assembly anticlockwise until it •
starts to take the weight of the chipper.

Grasp the handle and release the catch with your •
thumb.

Continue to wind the jockey wheel anticlockwise. This •
should lift the tow head clear of the ball hitch.

Drive the vehicle clear of the chipper. •
Wind the jockey wheel assembly to a suitable point •

where the chipper is level. Do not overtighten jockey
wheel handle.

The chipper is now fully detached from the vehicle.•

When towing a chipper the maximum speed limit is 60 •
mph.

On rough or bumpy road surfaces reduce speed •
accordingly to protect your machine from unnecessary
vibration.

When towing off road be aware of objects that may •
catch the chipper undergear.

When towing off road ensure inclination is not •
excessive.

Avoid excessively pot holed ground. •
When reversing the chipper the short wheel base will •

react quickly to steering.
Always check the discharge is tight before moving. •

Keep tyre pressures •
inflated to 1.8 bar or 26
psi.

Check wheel nuts are •
tightened to 90nm or 65
lbs ft.

Clear loose chippings and debris from the machine •
before departing.

Ensure feed funnel is closed and the catch is properly •
engaged before departing.

NEVER transport any items in feed funnel. •
Ensure tow hitch lock mechanism is locked before •

transporting.

WARNING

DO NOT RIDE ON

THE CHIPPER

WHEN IT IS

BEING TOWED.

TW 18/100G

8 /37

STORAGE

C190-0191 01.03.2019 Rev: 2.0

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, oil reservoirs.
Replace with new lubricants. NOTE: This should be performed at 6 month intervals (months 6
& 12) until re-commissioned. Drain prior to moving machinery, to prevent spillage.

x x

ü ü

Release and reapply handbrake to confirm it has not become sticky or faulty.

x x

ü ü

Check and restore tyre pressure levels.

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 when unhitched from a vehicle.
Lower the Jockey wheel, unhitch and lower the prop stand, to ensure the machine is unable to roll or move unintentionally
during storage. The discharge tube must be pointing towards the tow head. Braked machines should have the brake applied.

TW 18/100G

9 /37

OPERATING INSTRUCTIONS

C190-0191 01.03.2019 Rev: 2.0

RECOMMISSIONING AFTER STORAGE

Ensure machine is stable. •
Remove all guards and check all fasteners. If necessary, •

retighten as described within this manual.
Ensure discharge tube is correctly fastened, free of •

objects or blockages and rotates around its pivot
without being directed to face the point of operation
(danger zone).

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.

Re-connect the battery to its positive and negative •
terminals.

Undertake electrical diagnostic continuity check, to •
confirm circuit is complete.

Check tyre pressures. •
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 18/100G 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 5-7 which
contain important health and safety information and advice.

For more detailed information refer to the Engine Owner’s Manual

The engine speed is controlled by the vertically adjustable lever shown in diagram below. With the throttle lever in the
FAST position the machine is ready to chip. It MUST be pushed up as far as possible to achieve a suitable working speed.
If no wood is to be chipped for a few minutes the throttle should be returned to the idle position.

ENGINE CONTROLS

Open fuel shutoff valve. •
Pull choke control to the full choke position. •
Move throttle lever to ‘fast’. Always operate engine with throttle •

set to ‘fast’.
Push ‘on/off’ rocker switch to ‘on’ position. •
Insert key in ignition and turn to start engine. •
Release key as soon as engine starts. •
NOTE: To extend the life of the starter use only short starting •

cycles - 5 seconds max.
Allow engine to warm up. •
In cold weather, allow engine to run smoothly before each •

change in the position of the choke handle. Operate with choke
in ‘run’ position.

In warm weather temperatures or recently operated conditions, •
move choke handle slowly in towards the ‘run’ position.

THROTTLE LEVER

CHOKE

FUEL

SHUTOFF

VALVE

IGNITION

SWITCH

STARTING THE ENGINE

STOPPING THE ENGINE

Move throttle lever to ‘slow’ •
Turn ignition key to ‘off’ position and remove. •
Close fuel shutoff valve.•

EMERGENCY STOPPING

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 and the main ignition switch is turned off to reset the machine. 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.

TW 18/100G

10 /37

OPERATING INSTRUCTIONS

C190-0191 01.03.2019 Rev: 2.0

Check that the chipper is running smoothly. •
Stand to one side of the feed funnel. •
Proceed to feed material into the feed funnel. •

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.

ROTATION

Slacken nut using integral handle. 1
Rotate tube. 2
Retighten nut.3

1

DISCHARGE CONTROLS

Controlling the discharge is an essential part of safe working.

BUCKET ANGLE

Adjust the bucket to
the desired angle
using the handle
provided.

Locate the machine on firm level ground. •
Check machine is well supported and cannot move. •
Check all guards are fitted and secure. •
Check the discharge unit is in place and fastened securely. •
Check discharge tube is pointing in a safe direction. •
Check the feed funnel to ensure no objects are inside. •
Check feed table is in up position - to prevent people reaching •

cutting blades.
Check controls as described. •
Check (visually) for fluid leaks. •
Check fuel levels. •

For parts location see diagrams on pages 3 & 4.

DAILY CHECKS BEFORE STARTING

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.

CHIPPING

Wood up to the recommended 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 while 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.

TW 18/100G

11 /37

OPERATING INSTRUCTIONS

C190-0191 01.03.2019 Rev: 2.0

BLOCKAGES

Always be aware that what you are putting into the chipper must come
out. If the chips stop coming out of the discharge tube but the chipper
is taking material in - STOP IMMEDIATELY. Continuing to feed material
into a blocked machine may cause damage and will make it difficult to
clear. If the chipper becomes blocked, proceed as follows:

Stop the engine and remove the spark plug lead. •
Remove the discharge tube. Check that it is clear. •
Wearing gloves, reach into the rotor housing and scoop out the •

majority of the debris causing the blockage.
Replace the discharge tube. •
Restart the engine and increase to full speed. •
Allow machine time to clear excess chips still remaining in rotor housing before you continue feeding brushwood. •
Feed in a small piece of wood while watching to make sure that it comes out of the discharge. •
If this does not clear it, repeat the process and carefully inspect the discharge tube to find any obstruction. •

NOTE

Continuing to feed the chipper with brushwood once it has become blocked will cause the chipper to compact the chips
in the rotor housing and it will be difficult and time consuming to clear.

AVOID THIS SITUATION - WATCH THE DISCHARGE TUBE AT ALL TIMES.

WARNING

DO NOT REACH INTO THE

ROTOR HOUSING WITH
UNPROTECTED HANDS.

THERE ARE SHARP

BLADES AND ANY SMALL

MOVEMENT OF THE

ROTOR MAY CAUSE

SERIOUS INJURY.

BLADE WEAR

The most important part of using a wood chipper is keeping the cutter blades sharp. Timberwolf chipper blades are hollow
ground to an angle of 40 degrees. When performing daily blade checks ensure blade edge is sharp and free from chips, if
there is any evidence of damage, or the edge is “dull” change the blade(s). The TW 18/100G is fitted with 2 blades 177mm
(7") long. They are 44 mm wide when new. A new blade should chip for up to 25 hours before it requires sharpening.
This figure will be drastically reduced by feeding the machine with stony, sandy or muddy material.

As the blade becomes blunt, performance is reduced. With increased stress and load on the machine the chips will become
more irregular and stringy. At this point the blade should be sent to a reputable blade sharpening company. The blade
can be sharpened several times in its life. A wear mark indicates the safe limit of blade wear. Replace when this line is
exceeded.

The machine is also fitted with a static blade (anvil). It is important that the anvil is in good condition to allow the cutting
blades to function efficiently. Performance will be poor even with sharp cutter blades if the anvil is worn.

REFUELLING

When refuelling, follow standard Health & Safety practices:

Stop the engine and allow to cool before refuelling. •
Never smoke or allow naked flames nearby while refuelling. •
Store fuel away from vapour ignition sources such as fires and people smoking. •
Never refuel at operating location, keep a distance of > 10 m to avoid creating fire hazards. •
Fuel storage containers must be approved for diesel fuel storage and clearly labelled with securely fitting caps. •
Clean area around fuel cap and use a funnel for refuelling. Replace the fuel cap securely. Do not fill the tank beyond •

the max. fill indicator.
Avoid skin contact with fuel. If it gets into eyes wash out with sterile water immediately and seek medical advice as •

soon as possible.
Always clean spillages quickly and change clothes before re-entering the work area if fuel is spilled onto garments.•

FUEL LEVEL INDICATOR

The fuel level can be seen through the wall of the plastic tank.