Timberwolf TW 230DHB User manual

TW 230DHB
UK INSTRUCTION MANUAL
WOOD CHIPPER
timberwo f-uk.com

© Copyright Timberwolf Ltd 2017
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 230DHB
CONTENTS
C190-0101 25.07.2017 Rev: 1.0
Section Page No.
INTRODUCTION 2
PARTS LOCATOR DIAGRAMS 3
SAFE WORKING 5
Operator’s Personal Protective Equipment Required 5
Basic Woodchipping Sa ety 5
General Sa ety Matters 5
Noise Test 6
Sa e Transportation 7
Hitching onto the Tow Ball 7
Unhitching the Chipper 7
Stabilising the Chipper 7
STORAGE 8
Storing the Chipper 8
OPERATING INSTRUCTIONS 9
Recommissioning a ter storage 9
Delivery 9
Manual Controls 9
Auto Controls 10
Emergency Stopping 10
Engine Controls 10
Daily Checks Be ore Starting 10
Be ore Using the Chipper 10
Starting the Engine 10
Controlling the Engine Speed 11
Stopping the Engine 11
Discharge Controls 11
Starting to Chip 11
Chipping 11
Blockages 12
Blade Wear 12
Hydraulic Oil Level Indicator 12
Fuel Level Indicator 12
Re uelling 12
Troubleshooting 13
SERVICE INSTRUCTIONS 14
Service Schedule 14
Sa e Maintenance 15
Sa e Li ting o the Chipper 15
Spares 15
Battery Removal and Maintenance 15
Check Fittings 15
Hazardous Materials and End o Machine Li e 16
Battery Sa ety In ormation 17
Change Blades 18
Tension Drive Belts 19
Change Hydraulic Oil and Filter 19
Grease the Discharge Flange 19
Grease the Roller Spline and Rotor Bearings 20
Grease the Roller Box Slides 20
Engine Servicing 20
Check Hoses 20
WARRANTY STATEMENT 21
EC DECLARATION OF CONFORMITY 22
IDENTIFICATION PLATE 23
DECALS 24
ELECTRICAL PARTS LOCATOR 26
CIRCUIT DIAGRAM 27
HYDRAULIC LAYOUT 28
V‐ BELT TENSIONING TABLE 29
WARRANTY SERVICE CHECK RECORD 30
SERVICE RECORD 31
PARTS LISTS 32
1 / 55

2220mm (1360mm with discharg r mov d)
3810mm (3285mm with f d tray fold d)
1520mm
Th Timb rwolf TW 230DHB is d sign d to chip solid wood mat rial up to 160mm
in diam t r and capabl of chipping ov r 5 tonn s of brushwood p r hour.
PURPOSE
Engin typ :
Kubota 4-cylinder diesel
Maximum pow r:
26kW (35hp)
Cooling m thod:
Water cooled
Ov rall w ight:
749kg
Starting m thod:
Electric
Roll r f d:
Twin hydraulic motors
Maximum diam t r mat rial:
160mm (6 1⁄3")
Fu l capacity:
18 litres
Hydraulic oil capacity:
15 litres
Mat rial proc ssing capacity:
Up to 5 tonnes/hr
Fu l typ :
Diesel
DIMENSIONS
TW 230DHB
2/ 55
INTRODUCTION
C190-0101 25.07.2017 Rev: 1.0
Thank you or choosing Timberwol . Timberwol chippers are designed to give
sa e and dependable service i operated according to the instructions.
IMPORTANT HEALTH AND SAFETY INFORMATION
Be ore 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 o the Timberwol TW
230DHB. All in ormation in this manual is based on the latest product in ormation
available at the time o purchase.
All the in ormation you need to operate the machine sa ely and e ectively is
contained within pages 3 to 11. Ensure that all operators are prop rly train d or
operating this machine, especially in saf working practic s.
Timberwol 's policy o regularly reviewing and improving their products may
involve major or minor changes to the chippers or their accessories. Timberwol
reserves the right to make changes at any time without notice and without
incurring any obligation.
Due to improvements in design and per ormance during production there may
be, in some cases, minor discrepancies between the actual chipper and the text in
this manual.
Th manual should b consid r d an important part of th machin and should
r main with it if th machin is r sold.
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
SPECIFICATION
S rial No. Location.
Th s rial numb r
can b found on
th id ntification
plat locat d on
th chassis b am.

SAFETY BAR
FUNNEL
DISCHARGE
BUCKET
DISCHARGE
TUBE
CLAMP
NUTS
LIGHT
BOARD
CONTROL BOX
( ach sid )
ENGINE BAY SIDE
PANELS
REFLECTORS
TOW HEAD
ROTOR HOUSING
REFLECTOR
PROP STAND
MANUAL
CANNISTER
AIR FILTER
ROTOR HOUSING BLADE ACCESS
LIFTING EYE
TW 230DHB
3/ 55
PARTS LOCATOR
C190-0101 25.07.2017 Rev: 1.0
HYDRAULIC MOTOR
GUARD
ROLLER BOX
GUARD
THE TW 230DHB HAS THE FOLLOWING FIXED GUARDS FOR PROTECTION OF THE OPERATOR, CHIPPER
AND ENVIRONMENT:
Roll r Box Guard: Protects rotor housing rom damage or oreign matter. Protects the user rom injuries rom•
moving rollers and ejected material during operation.
Hydraulic Motors Guard: Protects hydraulic motors rom damage. Protects the user rom injuries rom heat and•
movement o motor.
Rotor Housing Blad Acc ss: Protects user rom rotational parts e.g. cutting blades. The interlocking switch•
disengages the engine when the hatch is opened to stop the chipper running.
Engin Bay Sid Pan ls: Protects the user rom rotational parts e.g. belts and pulleys, hot sur aces, and engine•
luids. Protects machine rom ingress o environmental debris.
Guards may be removed or maintenance only, as described in the Service Instruction pages o this manual. Ensur
guards r main in plac throughout op ration.
FEED
TRAY

TW 230DHB
4/ 55
PARTS LOCATOR
C190-0101 25.07.2017 Rev: 1.0
JOCKEY WHEEL ASSEMBLY
FUEL TANK
ENGINE BLOCK
ROTOR
FAN
SECTION (x4)
ROTOR
PULLEY
FUEL PUMP
FUEL FILTER
CUTTER BLADE
(x2)
OIL FILTER
STARTER MOTOR
RADIATOR
HYDRAULIC PUMP
ELECTRICAL PANEL
HYDRAULIC TANK
CONTROL PANEL
BELT TENSION ADJUSTER IN‐LINE FUEL FILTER
DIRECTIONAL
CONTROL VALVE
EXHAUST
TOOL BOX CONTENTS:
Copper Ease •
Rotor locking tool •
Combination Spanner (17mm/19mm)•
Support Bracket x 2•
Lock Unit Keys x 2•
Ignition Keys x 2•
Access Cover Keys x 2•
Keyring•
DRIVE
PULLEY

5 / 55
SAFE WORKING
C190-0101 25.07.2017 Rev: 1.0
ALWAYS stop the chipper engine be ore making any adjustments, re uelling or cleaning.•
ALWAYS check the rotor has stopped rotating and remove the chipper ignition key be ore maintenance o any•
kind, or whenever the machine is to be le t unattended. I in doubt, look through the in- eed unnel to see i
rotor is still moving.
ALWAYS check the machine is well supported and cannot move. I 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) or luid leaks. I ound, resolve the leak be ore operating the chipper.•
ALWAYS take regular breaks. Wearing personal protective equipment or long periods can be•
tiring and hot.
ALWAYS keep hands, eet and clothing out o eed opening, discharge and moving parts.•
ALWAYS use the next piece o material or a push stick to push in short pieces. Under no circumstances•
should you reach into the unnel.
ALWAYS keep the operating area clear o people, animals and children.•
ALWAYS keep the operating area clear rom debris build up.•
ALWAYS keep clear o the chip discharge tube. Foreign objects may be ejected with great•
orce.
ALWAYS ensure protective guarding is in place be ore commencing work. Failure to do so may•
result in personal injury or loss o li e.
ALWAYS operate the chipper in a well ventilated area - exhaust umes are dangerous.•
Ensure a ire extinguisher is available on site.•
Ensure a personal irst aid kit and hand cleaning materials are available (e.g. waterless skin cleanser).•
ü
TW 230DHB
WARNING
Chainsaw sa ety helmet (EN 397) itted with mesh visor (EN 1731) and•
ear de enders (EN 352).
Work gloves with elasticated wrist.•
Steel toe cap sa ety boots (EN 345-1).•
Close itting heavy-duty non-snag clothing. High-visability clothing (EN•
471) i risk assessment identi ies the need.
Face mask i 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 o the ollowing points:
MAINTAIN A SAFETY EXCLUSION ZONE around the chipper o at least 10 metres or the general public or employees•
without adequate protection. Use hazard tape to identi y this working area and keep it clear rom debris build up.
Chips should be ejected away rom any area the general public have access to.
HAZARDOUS MATERIAL - Some species o 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 be ore you start. Avoid con ined spaces and use a ace mask i necessary.
BE AWARE when the chipper is processing material that is an awkward shape. The material can move rom side to•
side in the unnel with great orce. I the material extends beyond the unnel, the brash may push you to one side
causing danger. Badly twisted brash should be trimmed be ore being chipped to avoid thrashing in the eed unnel.
BE AWARE that the chipper can eject chips out o the eed unnel with considerable orce. Always wear ull head and•
ace protection.
ALWAYS work on the side o the machine urthest rom 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 o an accident, stop the machine, remove the key and call the emergency services immediately.•
Th chipp r will f d mat rial
through on its own. To do this, it
r li s on sharp blad s both on th
f d roll rs and th chipp r rotor.
To k p th blad s sharp, only f d
th machin with cl an brushwood.
DO NOT put muddy/dirty wood,
roots, pott d plants, bricks, ston s
or m tal into th chipp r.
GENERAL SAFETY MATTERS

TW 230DHB
6/ 55
SAFE WORKING
C190-0101 25.07.2017 Rev: 1.0
GENERAL SAFETY MATTERS
DO NOT operate chipper unless available light is•
su icient to see clearly.
DO NOT use or attempt to start the chipper without•
the eed unnel, guards and discharge unit securely in
place.
DO NOT stand directly in ront o the•
eed unnel when using the chipper.
Stand to one side.
DO NOT smoke when re uelling. •
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.
93.3 dB
95.2 dB
96.3 dB96.6 dB
R= 4 metres
Guaranteed Sound
Power: 120dB (A)
101.5 dB
96.8 dB
As required by Annex III o Directive
2000/14/EC “Noise Emission in the
environment by equipment or use outdoors”.
Tested according to BS EN ISO 3744:2010. R= 10 metres
9
0
.
8
d
B
C
a
l
c
u
l
a
t
d
9
0
.
8
d
B
C
a
l
c
u
l
a
t
d
9
0
.
8
d
B
C
a
l
c
u
l
a
t
d
NOISE TEST
Machin : TW 230DHB
Not s: T st d chipping 120mm x 120mm corsican pin 1.5m in l ngth
DO NOT ALLOW
THE FOLLOWING
TO ENTER THE
MACHINE, AS
DAMAGE IS
LIKELY
BRICKS STRING ROOTS BEDDING
PLANTS
STONES METAL GLASS RUBBER
CLOTH PLASTIC

TW 230DHB
7/ 55
SAFE WORKING
C190-0101 25.07.2017 Rev: 1.0
Check ball head is well greased.•
Wind jockey wheel assembly anticlockwise until the•
tow head is above the height o 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. I it doesn't, repeat previous 2 steps.
Wind jockey wheel up until ully retracted and the•
jockey wheel rame is seated in its notch on the stem.
The chipper weight should be ully on the vehicle.
Check jockey wheel handle is secure be ore•
transportation. Do not overtighten jockey wheel
handle.
Release jockey wheel clamp and slide the jockey •
wheel assembly ully up.
Tighten clamp on jockey wheel assembly.•
Connect electrical plug to socket on rear o towing•
vehicle and check operation o 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
When hitched to a vehicle the chipper handbrake
should be released and the prop stand and jockey
wheel stored in the towing position (a).
Ensure the chipper will not roll away a ter being •
disconnected rom the vehicle.
Disconnect the electrical cable rom 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 ully.•
Retighten the jockey wheel assembly clamp.•
Wind the jockey wheel assembly anticlockwise until it•
starts to take the weight o the chipper.
Grasp the handle and release the catch with your•
thumb.
Continue to wind the jockey wheel anticlockwise. This•
should li t the tow head clear o the ball hitch.
Drive the vehicle clear o 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 ully detached rom the vehicle.•
When towing a chipper the maximum speed limit is 60•
mph.
On rough or bumpy road sur aces reduce speed•
accordingly to protect your machine rom unnecessary
vibration.
When towing o road be aware o objects that may•
catch the chipper undergear.
When towing o 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 be ore moving.•
Keep tyre pressures•
in lated to 2.2 bar or 32
psi.
Check wheel nuts are•
tightened to 90nm or 65
lbs t.
Clear loose chippings and debris rom the machine•
be ore departing.
Ensure eed unnel is closed and the catch is properly•
engaged be ore departing.
NEVER transport any items in eed unnel.•
Ensure tow hitch lock mechanism is locked be ore•
transporting.
(a) (b)
STABILISING THE CHIPPER
WARNING
DO NOT RIDE ON
THE CHIPPER
WHEN IT IS
BEING TOWED.
When the chipper is unhitched it should be level and made
secure be ore starting work by applying the handbrake and
lowering the prop stand and jockey wheel (b).
During unhitched storage the chipper must be level with
the discharge chute pointing towards the towhead.

TW 230DHB
8/ 55
STORAGE
C190-0101 25.07.2017 Rev: 1.0
STORING THE CHIPPER
Per orm the ollowing tasks at the storage intervals indicated, ollowing procedures described within this manual.
Storag tim
Maint nanc 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
Per orm routine maintenance.
ü ü ü ü
Check all asteners and retighten.
ü ü ü ü
Remove all uel rom the tank. NOTE: Either allow the machine to run until all uel has been
used, or drain rom the plug provided. I necessary, siphon the uel into an approved storage
container (re er to re- uelling section). Drain prior to moving machinery, to prevent spillage.
ü ü ü ü
Disassemble the spark plug (petrol machines) or remove battery cables (diesel machines).
ü ü ü ü
Where paint is damaged, touch up paint or treat with a lubricant. NOTE: Original paint colours
are available rom Timberwol dealers.
ü ü ü ü
Store the chipper in a dry place at +5°C to +40°C. NOTE: Timberwol strongly recommends the
machine is stored in a sheltered location, protected rom rain. I the machine is stored outside,
it must be well protected with tarpaulin.
xü ü ü
I relative humidity o the storage environment is > 60%, the sha t o the engine must be
rotated by hand 1-2 revolutions bi-weekly. Prior to rotating the sha t, 20 to 30 ml o engine oil
should be poured onto the bearing liner.
xü 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, coolant reservoirs, uel lines, oil
reservoirs. Replace with new lubricants. NOTE: This should be per ormed 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 con irm it has not become sticky or aulty.
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
ree rom extremes in temperature, at a min. temp. o +5°C and max. +40°C, humidity and
corrosive environments. NOTE: I the storage location is cold, damp or severe humidity changes
exist, adequate action should be taken to sa eguard machinery.
x x x ü
I machine is exposed to environmental conditions such as humidity during storage, inspect
bearing lubrication system or presence o water. I water is detected in the lubricant, lush 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 be ore operation.
xü ü ü
NOTE:
Regardless o storage time, all Timberwol machines must be in a stable, level position when unhitched rom 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 230DHB
9/ 55
OPERATING INSTRUCTIONS
C190-0101 25.07.2017 Rev: 1.0
RECOMMISSIONING AFTER STORAGE
Ensure machine is stable.•
Remove all guards and check all asteners. I necessary,•
retighten as described within this manual.
Ensure discharge tube is correctly astened, ree o•
objects or blockages and rotates around its pivot
without being directed to ace the point o operation
(danger zone).
Ensure eed unnel is ree rom oreign objects e.g.•
tools and clothing.
Lower and raise eed unnel into its open and closed•
positions to con irm unctionality.
Check uel and hydraulic luid levels within engine and•
reservoir and top up accordingly. *
Inspect all internal parts e.g. drive belts, taper locks•
and sha t keyways.
Check belt tension as described within this manual.•
Inspect cutting blades to con irm they are sharp and•
suitable or use.
Re-connect the battery to its positive and negative•
terminals.
Undertake electrical diagnostic continuity check, to•
con irm circuit is complete.
Check tyre pressures. •
Re-lubricate all grease pipes. Remove pipes and bleed•
the system prior to use, i necessary. *
Follow daily checks be ore starting, as described within•
this manual.
Start the machine. •
Run or 15 minutes at hal throttle, prior to any cutting•
activity, to clear the combustion engine. Once
complete, bring the machine onto ull throttle or a
urther 5 minutes.
*Storage luids should be replaced, DO NOT USE old
stagnate luids.
DELIVERY
All Timberwol TW 230DHB machines have a ull pre - delivery inspection be ore leaving the actory and are ready to
use. Read and understand this instruction manual be ore attempting to operate the chipper. In particular, read pages 5-
7 which contain important health and sa ety in ormation and advice.
GREEN
FORWARD
FEED
CONTROL
BLUE
REVERSE
FEED
CONTROL
RED SAFETY BAR
Do not r ly on th r d bar to k p th roll r
stationary if it is n c ssary to cl ar or touch th
roll r. Always switch off th machin and r mov
ignition k y b for approaching th roll r.
There are two control boxes, located on either side o the
eed tray.
MANUAL CONTROLS
Roller control boxes: a control box is located on either side o the eed unnel. Their unction is to control the eed roller
whilst processing material. They do not control the main rotor.
RED SAFETY BAR: This is the large red bar that surrounds the eed tray and side o the eed unnel. The bar is spring
loaded and connected to a switch that will interrupt the power to the rollers. The switch is designed so that it only
activates i the bar is pushed to the limit o its travel. The rollers stop instantly, but can be made to turn again by
pressing either the GREEN FEED or BLUE REVERSE controls.
Control Box Diagram
WARNING
DO NOT REMOVE, JAM,
DISABLE, BYPASS,
OVERRIDE OR OTHERWISE
IMPEDE THE
EFFECTIVENESS OF THE
RED SAFETY BAR.
R d Saf ty Bar T st
To nsur th saf ty bar is always op rational it must b activat d
onc b for ach work s ssion.
GREEN FEED CONTROL: orward eed - push the eed control once -
this activates the rollers and will allow you to start chipping (i the
rotor speed is high enough).
BLUE FEED CONTROL: reverse eed - allows you to back material out
o the rollers. The rollers will only turn in reverse as long as you
keep pressing the eed control.

TW 230DHB
10 / 55
OPERATING INSTRUCTIONS
C190-0101 25.07.2017 Rev: 1.0
AUTO CONTROLS
The no stress unit controls the eed rate o the material going into the chipping chamber. When the rotor speed is
below the predetermined level the no stress unit will not allow the eed rollers to work in the orward direction. When
the rotor speed rises above the predetermined level the eed rollers will start turning without warning.
EMERGENCY STOPPING
Push the RED SAFETY BAR. The rotor will still be turning, the engine must be powered down to stop the rotor. Turn o
the engine ignition key.
ENGINE CONTROLS
The engine controls are in two locations. The engine ignition is on the control panel in the centre o the machine, and
the throttle lever is mounted on the eed unnel.
LOCATE the machine on irm level ground.•
CHECK machine is well supported and cannot move.•
CHECK jack stand is lowered and secure.•
CHECK all guards are itted and secure.•
CHECK the discharge unit is in place and astened•
securely.
CHECK discharge tube is pointing in a sa e direction.•
CHECK the eed unnel to ensure no objects are•
inside.
CHECK eed tray is in up position - to prevent people•
reaching rollers.
CHECK controls as described below.•
CHECK (visually) or luid leaks.•
CHECK uel and hydraulic oil levels.•
I still hitched, ensure tow vehicle is isolated prior to•
operation o the chipper.
For parts location see diagrams on pages 3 & 4.
DAILY CHECKS BEFORE STARTING
BEFORE USING THE CHIPPER
3
1
PRESS THE GREEN FEED CONTROL
THE INFEED SHOULD TURN
FORWARDS
PRESS THE RED SAFETY
BAR
THE INFEED SHOULD STOP
PRESS THE BLUE FEED CONTROL
THE INFEED SHOULD TURN BACKWARDS ONLY
WHILE THE FEED CONTROL IS PRESSED
WITH THE ENGINE RUNNING AT FULL SPEED
STARTING THE ENGINE
Ensure throttle lever is in the slow•
(tortoise) position.
Insert key. Turn to heat.•
Heater LED comes on. •
Wait or heater LED to go out.•
Turn key to engage starter motor.•
Release key once engine starts.•
Do not ngag start r motor for mor
than 20 s conds ‐ allow on minut
b for att mpting to start. Inv stigat
r asons for failur to start. R f r to
Troubl shooting.
OFF
START
HEAT
ON
HOURS
COUNTER
THROTTLE LEVER
2

TW 230DHB
11 / 55
OPERATING INSTRUCTIONS
C190-0101 25.07.2017 Rev: 1.0
STOPPING THE ENGINE
ROTATION
Slacken nut using integral1
handle.
Rotate tube.2
Retighten nut.3
1
DISCHARGE CONTROLS
Controlling the discharge is an essential part o sa e working. BUCKET ANGLE
Adjust the bucket to the desired angle
using the handle provided.
Move the throttle lever to the ‘Tortoise’ to reduce the engine speed to idle.•
Leave the engine running or 1 minute.•
Turn the power switch to position 0. The engine should stop a ter a ew seconds.•
Remove the ignition key.•
For more detailed in ormation re er to the Engine Owner’s Manual.
Check that the chipper is level and running smoothly.•
Release the catches on the eed tray and lower. •
Per orm the “be ore using the chipper” tests (see page 10).•
Press the green eed control. The rollers will commence turning. •
Stand to one side o the eed unnel.•
Proceed to eed material into the eed unnel. •
STARTING TO CHIP
CHIPPING
Wood up to the recommended diameter can be ed into the eed unnel. Put the butt end in irst and engage it with the
eed rollers. The hydraulic eed rollers will pull the branch into the machine quite quickly. Large diameter material will
have its eed rate automatically controlled by the no stress unit.
Sometimes a piece o wood that is a particularly awkward shape is too strong or the eed rollers to break. This will
cause the top roller to either bounce up and down on the wood, or both rollers to stall. I this occurs, press the BLUE
REVERSE eed control until the material has been released. Pull the material out o the eed unnel and trim it so the
chipper can handle it.
Both eed rollers should always turn at the same speed. I one or both rollers stop or suddenly slow down it may be that
a piece o wood has become stuck behind one o the rollers. I this occurs, press the BLUE REVERSE eed control and
hold or 2 seconds - then repress GREEN FEED eed control. This should enable the rollers to ree the o ending piece o
material and continue rotating at the correct speed. I the rollers continue to stall in the ' orward eed' or 'reverse eed',
turn the engine o , remove the ignition key and investigate.
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.
CONTROLLING THE ENGINE SPEED
Always start the engine with the lever in the ‘slow’ (idle) position. With the throttle lever in the
‘ ast’ position the machine is ready to chip. It MUST be ully pushed to the le t to achieve a
suitable working speed. I no wood is to be chipped or a ew minutes the throttle should be
returned to the ‘slow’ (idle) position.

TW 230DHB
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OPERATING INSTRUCTIONS
C190-0101 25.07.2017 Rev: 1.0
BLOCKAGES
Always be aware that what you are putting into the chipper must
come out. I the chips stop coming out o the discharge tube but the
chipper is taking material in - STOP IMMEDIATELY. Continuing to eed
material into a blocked machine may cause damage and will make it
di icult to clear. I the chipper becomes blocked, proceed as ollows:
Stop the engine and remove the ignition keys. •
Remove the discharge tube. Check that it is clear.•
Wearing gloves, reach into the rotor housing and scoop out the•
majority o the debris causing the blockage.
Replace the discharge tube.•
Restart the engine and increase to ull speed.•
Allow machine time to clear excess chips still remaining in rotor housing be ore you continue eeding brushwood. Feed
in a small piece o wood while watching to make sure that it comes out o the discharge. I this does not clear it, repeat
the process and care ully inspect the discharge tube to ind any obstruction.
NOTE
Continuing to eed 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 di icult 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.
HYDRAULIC OIL LEVEL INDICATOR
The oil level will be visible through the tank wall. It should be within the upper and
lower level marks. Re er to illing and draining instructions on page 19.
BLADE WEAR
The most important part o using a wood chipper is keeping the cutter blades sharp. Timberwol chipper blades are
hollow ground to an angle o 40 degrees. When per orming daily blade checks ensure blade edge is sharp and ree rom
chips, i there is any evidence o damage, or the edge is “dull” change the blade(s). The TW 230DHB is itted with 2
blades 135mm (5") long. They are 100mm wide when new. A new blade should chip or up to 25 hours be ore it
requires sharpening. This igure will be drastically reduced by eeding the machine with stony, sandy or muddy material.
As the blade becomes blunt, per ormance 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 li e. A wear mark indicates the sa e limit o blade wear. Replace when
this line is exceeded.
The machine is also itted with a static blade (anvil). It is important that the anvil is in good condition to allow the
cutting blades to unction e iciently. Per ormance will be poor even with sharp cutter blades i the anvil is worn.
FUEL LEVEL INDICATOR
The uel level can be seen through the wall o the plastic tank.
REFUELLING
When re uelling, ollow standard Health & Sa ety practises:
Stop the engine and allow to cool be ore re uelling.•
Never smoke or allow naked lames nearby while re uelling.•
Store uel away rom vapour ignition sources such as ires and people•
smoking.
Never re uel at operating location, keep a distance o > 10 m to avoid creating ire hazards.•
Fuel storage containers must be approved or diesel uel storage and clearly labelled with securely itting caps. •
Clean area around uel cap and use a unnel or re uelling. Replace the uel cap securely. Do not ill the tank beyond•
the max. ill indicator.
Avoid skin contact with uel. I 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 be ore re-entering the work area i uel is spilled onto garments.•

TW 230DHB
13 / 55
OPERATING INSTRUCTIONS
C190-0101 25.07.2017 Rev: 1.0
THE FOLLOWING PAGES DETAIL ONLY BASIC
MAINTENANCE GUIDELINES SPECIFIC TO YOUR CHIPPER.
THIS IS NOT A WORKSHOP MANUAL.
Th following guid lin s ar not xhaustiv and do not xt nd to g n rally acc pt d standards of
ngin ring/m chanical maint nanc that should b appli d to any pi c of m chanical quipm nt and th
chassis to which it is mount d.
Authoris d Timb rwolf s rvic ag nts ar fully train d in all asp cts of total s rvic and maint nanc of
Timb rwolf wood chipp rs. You ar strongly advis d to tak your chipp r to an authoris d ag nt for all but th
most routin maint nanc and ch cks.
Timb rwolf acc pts no r sponsibility for th failur of th own r/us r of Timb rwolf chipp rs to r cognis
g n rally acc pt d standards of ngin ring/m chanical maint nanc and apply th m throughout th machin .
Th failur to apply g n rally acc pt d standards of maint nanc , or th p rformanc of inappropriat
maint nanc or modifications, may invalidat warranty and/or r gulatory complianc , in whol or in part.
Pl as r f r to your authoris d Timb rwolf s rvic ag nt for s rvic and maint nanc .
Probl m Caus Solution Caution ‐ Always nsur appropriat PPE is worn.
Wood chip
ejection
stopped /
limited
Obstructed
discharge Clear debris rom discharge chute. Ensure machine is o and keys removed.
Loose drive belts Re er to manual & tension belts guidelines. Ensure machine is o and keys
removed.
Broken rotor
paddles
Inspect paddles, replace broken / missing
paddle.
Ensure machine is o and keys
removed. Call engineer or repair.
Rotor does
not turn
Obstructed
discharge Clear debris rom discharge chute. Ensure machine is o and keys removed.
Rotor jammed Inspect & clear in eed unnel, roller box and
rotor housing.
Ensure machine is o and keys
removed.
Drive belt issue Inspect drive belts, replace i required.
Re er to manual & tension belts guidelines.
Ensure machine is o and keys
removed.
Slow or not
eeding
Low engine speed Check & inspect throttle and cable. Check
throttle is set to speci ied speed.
Ensure machine is o and keys
removed.
In eed rollers
jammed
Inspect & clear in eed unnel, roller box and
rotor housing.
Ensure machine is o and keys
removed.
Hydraulic oil Check hydraulic oil level, top up i
necessary.
Ensure machine is o , cool & pressure
isn’t present within the system.
Blades dull Rotate, sharpen or replace blades. Ensure machine is o and keys
removed.
Anvils dull Check anvil has sharp edge, rotate, sharpen
or replace i necessary.
Ensure machine is o and keys
removed.
Obstructed
discharge Clear debris rom discharge chute. Ensure machine is o and keys removed.
TROUBLESHOOTING
This table is a troubleshooting guide to common problems.
I your problem is not listed below, or is unresolved a ter ollowing the guide, please contact your Timberwol service
agent, whose Timberwol trained engineers can per orm urther ault inding. Be ore you call, please have this operating
manual and the machine serial number ready.

TW 230DHB
14 / 55
SER ICE INSTRUCTIONS
C190-0101 25.07.2017 Rev: 1.0
SERVICE SCHEDULE
SERVICE SCHEDULE
Check water. ü
Check radiator is clear. ü
Check engine oil - top up i necessary (10W-30). ü
Check or engine oil / hydraulic oil leaks. ü
Check uel level. ü
Check eed unnel, eed roller cover, access covers,
engine covers and discharge unit are securely itted. ü
Check blades. ü
Clean air ilter element.
Check tyre pressure is 2.2 Bar (32 psi). ü
Check sa ety bar mechanism. ü
Check or tightness all nuts, bolts and astenings
making sure nothing has worked loose. ü
Grease discharge lange. ü
Check tension o main drive belts
(and tension i necessary). ü
Grease the roller box slides. ü
Grease the roller spline and bearing. ü
Check anvils or wear. ü
Check sa ety bar mechanism. ü
Check uel pipes and clamp bands. ü
Check battery electrolyte level. ü
Check or loose electrical wiring. ü
Replace hydraulic oil ilter - every year or 100 hours
a ter service or repair work to the hydraulic system. ü ü
Replace hydraulic oil. ü ü
Replace uel pipes and clamp bands.
Check coolant.
Change engine oil.
Replace engine oil ilter cartridge.
Check valve clearance.
Replace anvils when worn.
Axle maintenance.
Tow head maintenance.
Daily
Ch ck
50
Hours
100
Hours
500
Hours
1
Y ar
REFER TO YOUR ENGINE
SUPPLIERS MANUAL
DEPENDING ON WORKING ENVIRONMENT
RETURN TO DEALER FOR ANVIL CHANGE
REFER TO SUPPLIERS
INSTRUCTION SHEET
OR
OR
OR AS REQUIRED ‐ SEE PAGE 20
OR AS REQUIRED ‐ SEE PAGE 20
WARNING
ALWAYS IMMOBILISE THE MACHINE BY STOPPING THE ENGINE, REMOVING
THE IGNITION KEY AND DISCONNECTING THE BATTERY BEFORE
UNDERTAKING ANY MAINTENANCE WORK.

TW 230DHB
15 / 55
SER ICE INSTRUCTIONS
C190-0101 25.07.2017 Rev: 1.0
SPARES
Only it genuine Timberwol replacement blades, screws and chipper spares. Failure to do so will result in the
invalidation o the warranty and may result in damage to the chipper, personal injury or even loss o li e.
The battery can be located under the unnel.1
Remove the negative lead irst and then the positive2
lead.
Clean, charge and/or top up the battery as required.3
Re itting is the reverse o removal. Apply a smear o4
vaseline to the terminals to prevent corrosion.
Siz Pitch H ad Torqu Ib ft
Blade Bolts M16 Standard 24mm Hex 125
Anvil Bolts M12 Standard M12 Cap 65
General M8 Standard 13 mm Hex 20
General M10 Standard 17 mm Hex 45
General M12 Standard 19 mm Hex 65
Drain Bung in Fuel Tank 3/8” BSP - 22 mm Hex 15
SAFE LIFTING OF THE CHIPPER
The li ting eye is designed to li t the machine’s weight only.
Do not use hoist hook directly on the li ting eye, use a
correctly rated sa ety shackle. Inspect the li ting eye prior
to each use - DO NOT USE LIFTING EYE IF DAMAGED.
Maximum li t weight is 850kg, as indicated on the machine.
BATTERY REMOVAL AND MAINTENANCE
CHECK FITTINGS
The Timberwol TW 230DHB is subject to large vibrations during the normal course o operation. Consequently there is
always a possibility that nuts and bolts will work themselves loose. It is important that periodic checks are made to
ensure the security o all asteners. Fasteners should be tightened using a torque wrench to the required torque (see
below). Uncalibrat d torqu wr nch s can b inaccurat by as much as 25%. It is th r for ss ntial that a calibrat d
torqu wr nch is us d to achi v th tight ning torqu s list d b low.
WARNING
REFER TO THE BATTERY SAFETY
SECTION ON PAGE 17.
SAFE MAINTENANCE
WARNING
ALWAYS IMMOBILISE THE ENGINE BEFORE
UNDERTAKING ANY MAINTENANCE WORK
ON THE CHIPPER BY REMOVING THE KEY
AND DISCONNECTING THE BATTERY.
ENSURE THE CHIPPER IS STABLE BEFORE
PERFORMING ANY MAINTENANCE.
Handle blades with extreme caution to avoid injury.•
Gloves should always be worn when handling the cutter
blades.
The drive belts should be connected while changing•
blades, as this will restrict sudden movement o the
rotor.
The major components o this machine are heavy.•
Li ting equipment must be used or disassembly.
Clean machines are sa er and easier to service.•
Avoid contact with hazardous materials.•

TW 230DHB
16 / 55
SER ICE INSTRUCTIONS
C190-0101 25.07.2017 Rev: 1.0
HAZARDOUS MATERIALS & END OF MACHINE LIFE
During Machin Lif
The ollowing hazardous materials are supplied within Timberwol machines:
Engine oil•
Coolant•
Battery acid•
Hydraulic oil•
Diesel•
Copper Ease•
MATERIAL SAFETY DATA SHEETS FOR HAZARDOUS MATERIALS SUPPLIED WITHIN TIMBERWOLF
MACHINES ARE AVAILABLE ON REQUEST. REFER TO THESE FOR FIRST AID AND FIRE PROTECTION
MEASURES.
Always ollow recommended procedures or sa e handling, removal and disposal o hazardous materials. Sa ety
precautions should be taken when handling hazardous materials (use o oil-resistant gloves and sa tey glasses are
recommended - respiratory protection is not required). Avoid direct contact with the substance and store in a cool, well
ventilated area avoiding sources o ignition, strong oxidising agents and strong acids. Ensure hazardous spillages do not
low into the ground or drainage system and ensure potential environmental damage is controlled sa ely, according to
local laws.
End of Machin Lif
Follow these guidelines using approved local waste and disposal agencies or recycled materials, according to applicable
Health, Sa ety and Environmental laws.
Position the machine within reach o all necessary li ting equipment. •
Use tools and PPE detailed within maintenance instructions. •
Remove all hazardous materials and battery and store sa ely be ore disposal.•
Disassemble the machine structure, re erring to the maintenance instructions. Pay attention to parts with•
mechanical pressure or tension applied, including springs.
Separate items that continue to have a service li e. •
Separate worn items into material groups and where possible, recycle using available agencies or recycled•
materials. Common types are:
I a part is not easily separated into di erent material groups, it must be added to “general discarded materials”. •
Do not burn discarded materials. •
Change the machinery records to show that the machine is out o service and discarded. Supply this serial number•
to Timberwol to close their records.
Steel
Non- errous metals
Aluminium
Brass
Copper
Plastic materials
Rubber
Electrical and Electronic Components
Other materials that can be recycled
Other materials that cannot be recycled

TW 230DHB
17 / 55
SER ICE INSTRUCTIONS
C190-0101 25.07.2017 Rev: 1.0
BATTERY SAFETY INFORMATION
1. Storag and transport
Batteries are illed with acid.•
Always store and transport batteries upright and•
prevent rom tilting so that no acid can escape.
Store in a cool and dry place.•
Do not remove the protective cap rom the positive•
terminal.
Run a FIFO ( irst in- irst out) warehouse management•
system.
2. Initial op ration
The batteries are illed with acid at a density o•
1.28g/ml during the manu acturing process and are
ready or use.
Recharge in case o insu icient starting power (see no. 4).•
3. Installation in th v hicl and r moval from th v hicl
Switch o the engine and all electrical equipment.•
When removing, disconnect the negative terminal irst.•
Avoid short circuits caused by tools, or example.•
Remove any oreign body rom the battery tray, and•
clamp battery tightly a ter installation.
Clean the terminals and clamps, and lubricate slightly•
with battery grease.
When installing, irst connect the positive terminal, and•
check the terminal clamps or tight it.
A ter having itted the battery in the vehicle, remove•
the protective cap rom the positive terminal, and place
it on the terminal o the replaced battery in order to
prevent short circuits and possible sparks.
Use parts rom the replaced battery, such as the•
terminal covers, elbows, vent pipe connection and
terminal holders (where applicable); use available or
supplied iller caps.
Leave at least one vent open, otherwise there is a•
danger o explosion. This also applies when old
batteries are returned.
4. Charging
Remove the battery rom the vehicle; disconnect the•
lead o the negative terminal irst.
Ensure good ventilation.•
Use suitable direct current chargers only.•
Connect the positive terminal o the battery to the•
positive output o the charger. Connect the negative
terminal accordingly.
Switch on the charger only a ter the battery has been•
connected, and switch o the charger irst a ter
charging has been completed.
Charging current-recommendation: 1/10 ampere o the•
battery capacity Ah.
Use a charger with a constant charging voltage o 14.4V•
or re-charging.
I the acid temperature rises above 55oCelsius, stop•
charging.
The battery is ully charged when the charging voltage•
has stopped rising or two hours.
5. Maint nanc
Keep the battery clean and dry.•
Use a moist anti-static cloth only to wipe the battery,•
otherwise there is a danger o explosion.
Do not open the battery.•
Recharge in case o insu icient starting power (see no. 4).•
6. Jump Starting
Use the standardised jumper cable in compliance with•
DIN 72553 only, and ollow the operating instructions.
Use batteries o the same•
nominal voltage only.
Switch o the engines o•
both vehicles.
First connect the two•
positive terminals (1) and
(2), then connect the negative terminal o the charged
battery (3) to a metal part (4) o the vehicle requiring
assistance away rom the battery.
Start the engine o the vehicle providing assistance,•
then start the engine o the vehicle requiring assistance
or a maximum o 15 seconds.
Disconnect the cables in reverse sequence (4-3-2-1).•
7. Taking th batt ry out of s rvic
Charge the battery; store in a cool place or in the•
vehicle with the negative terminal disconnected.
Check the battery state o charge at regular intervals,•
and correct by recharging when necessary (see no. 4).
(1)
(2)
(3) (4)
12V 12V
For sa ety reasons, wear eye•
protection when handling a
battery.
Keep out o reach o•
children.
Fires, sparks, naked lames•
and smoking are prohibited.
Avoid causing sparks when•
dealing with cables and
electrical equipment, and
beware o electrostatic
discharges.
Avoid short circuits.•
Explosion hazard:
A highly explosive•
oxyhydrogen gas mixture is
produced when batteries are
charged.
Corrosiv hazard:
Battery acid is highly corrosive,
there ore:
Wear protective gloves and•
eye protection.
Do not tilt the battery, acid•
may escape rom the vent
openings.
First aid:
Rinse o acid splashed in the•
eyes immediately or several
minutes with clear water!
Remove contact lenses i
worn and continue rinsing.
Then consult a doctor
immediately.
Neutralise acid splashes on•
the skin or clothes
immediately with acid
neutraliser (soda) or soap
suds, and rinse with plenty o
water.
I acid is swallowed, consult a•
doctor immediately.
Warning not s: Th batt ry cas
can b com brittl , to avoid this:
Do not store batteries in•
direct sunlight.
Discharged batteries may•
reeze up, there ore store in
an area ree rom rost.
Disposal:
Dispose o old batteries at an•
authorised collection point.
The notes listed under item 1•
are to be ollowed or
transport.
Never dispose o old batteries•
in household waste.
WARNING NOTES AND SAFETY REGULATIONS FOR FILLED LEADACID BATTERIES

TW 230DHB
18 / 55
SER ICE INSTRUCTIONS
C190-0101 25.07.2017 Rev: 1.0
Turn the chipper o and remove the ignition keys.1
Remove battery leads.2
Remove the 2 nuts retaining the rotor housing blade access hatch,3
slide hatch clear o rotor housing.
Turn rotor to blade change position.4
Insert locking bar into rotor housing and rotor.5
Brush away all dirt and debris rom the rotor and blades.6
With a 24mm spanner/socket undo the two nyloc nuts and washers7
that are holding the blade in place. Remove both blade bolts rom
the blade.
Grasp the blade by the lat edges while wearing heavy duty gloves.8
Withdraw the blade rom the rotor. 9
Clean the back sur ace o the blade, blade bolts and blade area o10
the rotor be ore reseating blades. Th blad s must not hav any
mat rial und rn ath th m wh n tight n d. If th y ar not flat
and tight th y will b com loos v ry quickly.
Reassemble the blades, bolts, washers and nuts in the order shown11
in the diagram above. Use only genuine Timberwol nuts and
washers, as they are o a higher grade than normally stocked at
astener actories. Failure to use the appropriate grade nuts or
washers may result in damage, injury or death. The use o genuine
Timberwol blades and bolts is recommended.
Apply a smear o anti seize compound (copper ease) to the bolt12
threads and back ace o the nuts. Do not apply copper grease onto
the counter bore aces o the blades or bolts.
A calibrat d torqu wr nch must b us d to tight n th bolts to a13
torqu s tting of 125 lbs ft (170 Nm).
Remove lock pin, rotate rotor to next blade then replace lock pin14
and repeat steps 6 - 13.
Re it rotor housing blade access hatch.15
Re it the nuts and tighten to 40lb/ t.16
Re it battery leads.17
CHANGE BLADES
3
4
5
11
WARNING
WEAR RIGGERS GLOVES FOR THE BLADE
CHANGING OPERATION.
WARNING
ALWAYS SHARPEN BLADES ON A REGULAR BASIS. FAILURE TO DO SO
WILL CAUSE THE MACHINE TO UNDER PERFORM AND WILL OVERLOAD
ENGINE AND BEARINGS CAUSING MACHINE BREAKDOWN. BLADES
MUST NOT BE SHARPENED BEYOND THE WEAR MARK SEE DIAGRAM.
FAILURE TO COMPLY WITH THIS COULD RESULT IN MACHINE DAMAGE,
INJURY OR LOSS OF LIFE.
WEAR MARK