Timberwolf TW 150VTR User manual

CONTENTS
Section Page No.
INTRODUCTION 1
PURPOSE OF MACHINE 2
MACHINE DIMENSIONS & SPECIFICATIONS 2
PARTS LOCATION DIAGRAMS 3 & 4
SAFE WORKING 5
Operator’s Personal Protective Equipment Required 5
Basic Woodchipping Safety 5
General Safety Matters - Do’s and Dont’s 6
Noise Test 7
OPERATING INSTRUCTIONS 8
Delivery 8
Operator’s Personal Protective Equipment Required 8
Manual Controls 8
Crawler Track Controls 9
Auto Controls 9
Emergency Stopping 9
Daily Checks Before Starting 10
Engine Controls 10
Starting the Engine 10
Controlling the Engine Speed 10
Stopping the Engine 10
Fuel Level Indicator 10
Before Using the Chipper 11
Starting to Chip 11
Chipping 11
Discharge Controls 12
Blockages 12
Removing the Funnel 12
Chassis Jacking Point 12
SERVICE INSTRUCTIONS 13
Service Schedule 13
Safe Maintenance 14
Spares 14
Battery Removal and Maintenance 14
Change Hydraulic Oil and Filter 14
Change Blades 15
Check Fittings 16
Check Hoses 16
Tension Drive Belts 16
Grease the Roller Drive Splines 16
Engine Manufacturer’s Handbook 16
Grease the Roller Box Slides 17
Greasing Rotor Bearings 17
Track Base Maintenance 17
Replace Oil in Track Drive Unit 17
Draining the Oil in the Track Drive Unit 18
Reduction Unit Oil Types 18
Checking the Rubber Tracks 18
Checking Track Tension 19
Track Loosening / Tightening Procedures 19
Removing the Rubber Tracks 20
Installing the Rubber Tracks 20
Checking Sprocket Wear 20
WARRANTY STATEMENT 21
EC DECLARATION OF CONFORMITY CERTIFICATE 22
IDENTIFICATION PLATES 23
STICKERS 24 & 25
ELECTRICAL DETAILS 26 & 27
CIRCUIT DIAGRAM 28
HYDRAULIC LAYOUT 29 & 30
PARTS LISTS 32 - 56
18th March 05

TIMBERWOLF TW 150FTR/VTR 1
Thank you for choosing this Timberwolf brushwood chipper. Timberwolf chippers are
designed to give safe and dependable service if operated according to the instructions.
Before using your new chipper, please take time to
read this manual which contains
IMPORTANT HEALTH AND SAFETY INFORMATION
and explains the chipper controls. Failure to do so could result in:
- personal injury
- equipment damage
- damage to property
- a member of the general public becoming injured
This manual covers the operation and maintenance of the Timberwolf TW 150FTR/VTR.
All information in this manual is based on the latest product information available at the
time.
All the information you need to operate the machine safely and effectively is contained
within pages 3 to 12. Ensure that all operators are adequately trained for operating
this machine, especially with regard to safe working practices.
Timberwolf's policy of constantly 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 a permanent 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 caution 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
INTRODUCTION

The Timberwolf TW 150FTR/VTR brushwood chipper is designed to chip solid wood material up to
150 mm in diameter. The maximum cross-section hardwood for continuous feed is 8500 mm2. It is
capable of chipping up tp 4 tonnes of brushwood per hour.
PURPOSE OF MACHINE
Timberwolf TW 150FTR/VTR Specification
TIMBERWOLF TW 150FTR/VTR 2
Serial No. Location
The serial number can be
found on top of the rotor
housing.
1575 mm
DIMENSIONS
2300 mm
2775 mm
Width with
funnel
1265 mm
TIMBERWOLF
Width with
funnel
1265 mm
1588 mm
2300 mm
3122 mm (2479 with feed tray folded).
TW 150FTR/VTR
WITH LOW FUNNEL
TW 150FTR/VTR
WITH HIGH FUNNEL
Engine type Kubota 4 cyl. diesel
Maximum power 25.7 kW (35 HP)
Cooling method Water cooled
Overall weight 1080 kg (VTR) 1155 (FTR)
Starting method Electric
Roller feed Twin series hydraulic motors
Maximum diameter material 150 mm (6")
Fuel capacity 16 litres
Hydraulic oil capacity 15.5 litres
Material processing capacity 4 tonnes/hr
Fuel type Diesel
TIMBERWOLF
Variable
Track Width
700-1100 mm
Fixed
Track Width
1180 mm
Variable
Track Width
700-1100 mm
Fixed
Track Width
1180 mm

PARTS LOCATOR 3
SAFETY BAR
FUNNEL
DISCHARGE
BUCKET
DISCHARGE
TUBE
CLAMP NUTS
CONTROL BOX
HOSE GUARD
(BATTERY ACCESS)
ROLLER
BOX COVER
SIDE
PANELS
HYDRAULIC OIL
FILTER
ROTOR
HOUSING
THROTTLE
LEVER
EMERGENCY
STOP
DRIVING
CONTROL
PANEL
TTIMMBBERWOOLF
TW 150FTR/VTR WITH HIGH FUNNEL
FUNNEL
FEED
TRAY
SAFETY BAR
CONTROL BOX
LOWER
SAFETY BAR

PARTS LOCATOR 4
BATTERY
FUEL TANK
ENGINE
BLOCK
ROTOR
FAN
ROTOR
PULLEY
DRIVE
PULLEY
BELT
TENSION
ADJUSTER
FUEL PUMP
EXHAUST
FUEL
FILTER
NO
STRESS
SENSOR
DIP
STICK
OIL
FILTER
ALTERNATOR
CONTROL
PANEL
STARTER
MOTOR
RADIATOR
AIR FILTER
HYDRAULIC
PUMP
DIRECTIONAL
CONTROL
VALVE
HYDRAULIC
OIL TANK
ROLLER BOX
TOP SLIDE ELECTRICAL PANEL

SAFE WORKING 5
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 facemask 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.
WARNING
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. !
!
OPERATOR'S PERSONAL PROTECTIVE EQUIPMENT REQUIRED
Chainsaw safety helmet
fitted with mesh visor and
recommended ear defenders
to the appropriate
specifications.
Work gloves with
elasticated wrist.
Close fitting heavy-duty
non-snag clothing.
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.
Steel toe cap safety boots.

SAFE WORKING 6
GENERAL SAFETY MATTERS
DO NOT use chipper unless available light is
sufficient to see clearly.
DO NOT use or attempt to start the chipper
without the feed funnel, belt guard, guards and
discharge unit securely in place.
DO NOT start the chipper running unless properly
guarded.
DO NOT stand directly in front of the feed funnel
when using the chipper. Stand to one side.
DO NOT allow -
DO NOT smoke when
refuelling. Petrol and diesel
are explosive!
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
machine is running.
- to enter the machine, as damage is likely.
ALWAYS stop the chipper engine before making
any adjustments, refuelling or cleaning.
ALWAYS check machine has stopped rotating
and remove chipper ignition key before
maintenance of any kind, or whenever the
machine is to be left unattended.
ALWAYS check machine is well supported and
cannot move.
ALWAYS run with the engine set to maximum
speed.
ALWAYS check (visually) for fluid leaks.
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 the next piece of material or 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 use chipper in a well ventilated area -
exhaust fumes are dangerous.
WARNING
NEVER LEAVE CHIPPER ON A SLOPE UNATTENDED.
!!
BRICKS STRING CLOTH PLASTIC STONES
METAL GLASS RUBBER ROOTS BEDDING
PLANTS
DO’S AND DON’TS !

SAFE WORKING
MACHINE:
NOTES:
TW 150FTR/VTR
Tested Chipping 120 mm x 120 mm Corsican Pine
1.5m in length
NOISE TEST
7
Noise levels above 90dB (A) will be experienced at the working position. Wear ear protection
at all times to prevent possible damage to hearing. All persons within a 4 metre radius must
also wear good quality ear protection.
93.8 dB
95.3 dB
97.9 dB96.3 dB
R= 4 metres
Guaranteed Sound Power: 119dB (A)
102.6 dB
96.8 dB
As required by Annex III of Directive 2000/14/EC “Noise Emission in the environment by equipment for use outdoors”.
R= 10 metres
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OPERATING INSTRUCTIONS 8
DELIVERY
All Timberwolf 150FTR/VTR 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.
OPERATOR’S PERSONAL PROTECTIVE EQUIPMENT REQUIRED
CHAINSAW safety helmet fitted with visor and
recommended ear defenders to an appropriate
specification.
HEAVY-DUTY Work gloves with elasticated wrist.
CLOSE - FITTING heavy-duty non-snag
clothing.
SAFETY footwear.
FACE MASK (if appropriate).
MANUAL CONTROLS
GREEN
FORWARD
FEED
PANEL
BLUE
REVERSE
FEED
PANEL
RED STOP FEED -
EMERGENCY STOP BUTTON
RED SAFETY BAR
See page 5 for more detailed information.
P
U
S
H
T
O
S
T
O
P
P
U
L
L
T
O
R
E
S
E
T
Roller control box - is the control box above the feed opening of the chipper funnel. Its function is to control
the feed rollers. The feed rollers draw material into the machine. It does not control the main rotor.
RED SAFETY BAR = This is the large red bar that surrounds the sides and top of the feed funnel
(sides and bottom on high funnel). 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 if the bar is pushed
(pushed or pulled...low funnel only) to the limit of its travel. The rollers stop instantly, but can be made
to turn again by pressing either the GREEN FEED or BLUE REVERSE control buttons.
LOW SAFETY BAR = An additional safety bar is located along the bottom of the low funnel. This is
linked directly to the main bar, and will stop the rollers if pushed only. Pulling this bar will only move
it into its ‘stowed’ (up) position.
GREEN BUTTON = Forward feed - Push the button once - this activates the rollers and will allow you
to start chipping (if the rotor speed is high enough).
RED BUTTON = Emergency stop - This button stops the rollers from feeding. It overrides all other
buttons or bars and will not allow the other buttons to function until it has been reset. Pull the button out to
reset, the forward and reverse buttons will now function.
BLUE BUTTON = Reverse feed - allows you to back material out of the rollers. The rollers will only
turn in reverse as long as you keep pressing the button. You do not have to press the STOP button
before pressing the GREEN FEED button to recommence feeding.
Do not rely on the red bar to keep the rollers stationary if it is
necessary to clear or touch the rollers. Always switch off the
machine and remove ignition key before approaching the rollers.
Control Panel Diagram

OPERATING INSTRUCTIONS 9
CRAWLER TRACK CONTROLS
The chipper is designed to operate in either chipper or crawler mode, but not both at the same time.
CHIPPING MODE
Power is available to the feed rollers. The cutting disc is rotating but the unit is stationary.
CRAWLER TRACK MODE
Power is available to the crawler tracks. The cutting disc is rotating but the feed rollers are stationary.
To switch between modes, a lever is operated (see diagram below). This is located
on the driving control panel (see parts locator on page 3). It is clearly marked.
When Track mode is selected the two track control valves may be operated. These
have direct control over the track relevant to each side of the machine. They are
proportional valves, so increased movement will result in increased track speed.
Tracking may be done at either high or low engine speed. Manoeuvring the
machine in tight spaces and while loading and unloading should be done with the
engine on low speed.
For machines fitted with variable tracks, track width adjustment is only possible with
the track/chip control in the chip position. Track adjust handle is spring loaded to the
middle (see diagram, right). The more you move the handle, the more the tracks
adjust. To move the tracks outward, move the track adjust handle up. To bring
tracks inward, move the track adjust handle down.
TRACK
CHIP
AUTO CONTROLS
The engine management unit controls the feed rate of the material going into the chipping chamber.
If the engine speed is below the predetermined level, the engine management unit will not allow the
feed rollers to work in the forward feed direction, until the rotor speed rises above the predetermined
level. At this point the feed rollers will start turning without warning. The reverse function will work at
any speed.
There are three ways of stopping the TW 150FTR/VTR chipper in the event of an emergency.
STOPPING THE ROLLERS
-Activating the red safety bar will stop the rollers immediately. To restart the rollers, just push the
green forward button or blue reverse button.
-Pushing the red Emergency button on the roller control box will also stop the rollers immediately. The
button will stay in the “pushed in” position, and will require resetting (pulling out) before being able to
restart the roller functions.
STOPPING THE ENGINE
Should the entire machine need to be stopped in an emergency, the red button on top of the engine
guard should be pushed. This will shut down the engine in the shortest possible time. The engine
cannot be restarted until the button is pulled out again to reset it.
EMERGENCY STOPPING
O
U
T
I
N
3015
WARNING
NEVER LEAVE CHIPPER ON A SLOPE UNATTENDED.
!!
NOTE: Ensure low safety bar on
low funnel is rotated into the
‘stowed’ (up) position prior to
tracking to avoid damage to the bar.

OPERATING INSTRUCTIONS 10
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 controls as described below.
CHECK (visually) for fluid leaks.
CHECK fuel and hydraulic oil levels.
For parts location see diagrams on pages 3 & 4.
DAILY CHECKS BEFORE STARTING
FUEL LEVEL INDICATOR
The fuel level can be seen through the wall of the fuel tank.
ENGINE CONTROLS
The engine controls are in two locations. The engine ignition is on the control panel in the centre of
the machine, and the throttle lever is on the bonnet next to the engine emergency stop switch (see
parts locator on page 4).
INSERT key.Turn to heat.
HEATER LED comes on.
WAIT FOR HEATER LED TO GO OUT.
TURN key to start position until it fires.
RELEASE key.
STARTING THE ENGINE
CONTROLLING ENGINE SPEED
The engine has two throttle settings, idle and fast. These are controlled by the
throttle lever on the bonnet. Moving the lever towards the ‘Hare’ on the pictogram
will increase engine speed while moving it towards the ‘Tortoise’ will decrease the
engine speed.
If the engine fails to start after 10 seconds
leave for 1 minute and try again.
STOPPING THE ENGINE
MOVE the throttle lever to the ‘Tortoise’ to reduce the engine speed to idle.
LEAVE the engine running for 1 minute.
TURN the power switch to position 0. The engine should stop after a few seconds.
01
2
HOURS
0
0
00
0
0
0
HOURS
COUNTER
STARTHEATOFF ON
01
2

OPERATING INSTRUCTIONS 11
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.
!!
CHIPPING
Wood up to 150 mm diameter can be fed into the feed funnel. Put the butt end in first and engage it
with the feed roller. The hydraulic feed rollers will pull the branch into the machine quite quickly. Large
diameter material will have its feed rate automatically controlled by the engine management unit.
Sometimes a piece of wood that is a particularly awkward shape is too strong for the feed rollers to
break. This will cause the top roller to either bounce up and down on the wood or both rollers to stall.
If this occurs press the BLUE REVERSE button until the material has been released. Pull the material
out of the feed funnel and trim it so the chipper can handle it.
Both feed rollers should always turn at the same speed. If one or both rollers stop or suddenly slow
down it may be that a piece of wood has become stuck behind one of the rollers. If this occurs press
the BLUE REVERSE button and hold for 2 seconds - then repress GREEN FEED button. This should
enable the rollers to free the offending piece of material and continue rotation at the correct speed. If
the rollers continue to stall in the 'forward feed' or 'reverse feed' position push the RED STOP
BUTTON, turn engine off, remove ignition key and investigate.
BEFORE USING THE CHIPPER
IT IS ESSENTIAL TO CARRY OUT THE FOLLOWING TESTS to check safety equipment - this
sequence of tests will only take a few seconds to carry out. We recommend that these tests are carried
out daily. Observing the function as described will confirm that the safety circuits are working correctly.
This is also a good opportunity to remind all operators of the control and emergency stop systems.
5
8
679
12
PRESS THE GREEN
BUTTON
THE ROLLERS SHOULD
TURN FORWARDS
PRESS THE RED
SAFETY BAR
THE ROLLERS
SHOULD STOP
PRESS THE BLUE BUTTON
THE ROLLERS SHOULD TURN
BACKWARDS ONLY WHILE
THE BUTTON IS PRESSED
PRESS THE GREEN
BUTTON AGAIN
THE ROLLERS SHOULD
TURN FORWARDS
PRESS THE EMERGENCY
RED BUTTON
THE ROLLERS
SHOULD STOP
PRESS THE BLUE
BUTTON
THE ROLLERS SHOULD
NOT TURN
PULL TO RESET
THE RED BUTTON
THE MACHINE IS
READY TO USE
WITH THE ENGINE RUNNING AT FULL SPEED
CHECK that chipper is running smoothly.
PULL to release the red emergency stop button.
PRESS the green control button. The rollers will commence turning.
STAND to one side of the feed funnel.
PROCEED to feed material into the feed funnel.
3
PRESS THE GREEN
BUTTON
THE ROLLERS SHOULD
TURN FORWARDS
4
PULL THE RED
SAFETY BAR
THE ROLLERS
SHOULD STOP
Low funnel only

OPERATING INSTRUCTIONS 12
BLOCKAGES
DISCHARGE CONTROLS
Controlling the discharge is an essential part of safe working.
BUCKET ANGLE
4. Adjust the bucket to the desired
angle using the handle provided.
ROTATION
1. Slacken nut using
integral handle.
2. Rotate tube.
3. Retighten nut.
1
CHASSIS JACKING POINT
1. LOOSEN the cover plate bolt on the appropriate side
of the chipper.
2. ROTATE cover plate, allowing it to remain attached
to the chassis.
3. PULL the jacking beam from the access hole to its
fullest extent (approx 300 mm).
4. AFTER use, push beam back into access hole and
secure cover plate.
JACKING
POINT
1. DISCONNECT the control box loom from the engine loom at the
connection point location under the near side of the funnel.
2a. ON the high funnel / tray, ensure tray is closed and catches are latched.
2b. ON the low funnel, rotate low safety bar into its ‘stowed’ (up) position.
3. RELEASE the two catches that secure the funnel to the chassis,
located underneath funnel. (Only one catch on high funnel).
4. WITH two people in position, lift the funnel by the handles (if fitted),
ensure the wide end is lifted first then release the narrow end from the roller box assembly.
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 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 whilst 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.
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.
WARNING
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.
!!
13
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.
REMOVING THE FUNNEL

SERVICE INSTRUCTIONS
Table 1. Service Schedule
Do jobs below:
Check engine oil - top up if necessary.
Check for engine oil / hydraulic oil leaks.
Check fuel level.
Check feed funnel, feed roller cover,
access covers, engine covers and
discharge unit are securely fitted.
Check blades.
Check radiator is clear.
Clean air filter element.
Check for tightness all nuts, bolts and
fastenings making sure nothing has
worked loose.
Tension main drive belts.
Grease the roller drive splines.
Check safety bar mechanism.
Check fuel pipes and clamp bands.
Check battery electrolyte level.
Check for loose electrical wiring.
Replace track drive unit oil.
Replace hydraulic oil filter - every year or
100 hours after service or repair work to
the hydraulic system.
Replace hydraulic oil.
Replace fuel pipes and clamp bands.
Check coolant.
Change engine oil.
Replace engine oil filter cartridge.
Check valve clearance.
Replace front rotor bearings.
Turn / replace anvils.
Axle maintenance.
Tow head maintenance
NOTE: Main Rotor Bearings are sealed for life. No greasing or lubrication is necessary.
13
Daily
Check
50
Hours
100
Hours
500
Hours
1
Year
}REFER TO YOUR ENGINE
SUPPLIERS MANUAL
DEPENDING ON WORKING ENVIRONMENT
OR
OR
}
RETURN TO DEALER OR
}
REFER TO SUPPLIERS
INSTRUCTION SHEET
(1st time) OR
then
WARNING
Always immobilise the machine by stopping the engine, removing the
ignition key and disconnecting the battery before undertaking any
maintenance work.
SERVICE SCHEDULE
!
!

SERVICE INSTRUCTIONS 14
ALWAYS IMMOBILISE THE ENGINE BEFORE UNDERTAKING ANY MAINTENANCE WORK ON
THE CHIPPER BY REMOVING THE KEY AND DISCONNECTING POSITIVE LEAD AT THE
BATTERY.
HANDLE blades with extreme caution to avoid injury. Gloves should always be worn when
handling the cutter blades.
AVOID contact with hydraulic oil and fuel.
THE drive belts should be connected while changing blades, as this will restrict sudden
movement of the rotor.
THE major components of this machine are heavy. Lifting equipment must be used for disassembly.
CLEAN machines are safer and easier to service.
SAFE MAINTENANCE
Only fit genuine Timberwolf replacement blades, screws and chipper spares. Failure to do so
will result in the invalidation of the warranty and may result in damage to the chipper, personal
injury or even loss of life.
SPARES
BATTERY REMOVAL AND MAINTENANCE
WARNING
Refer to the battery leaflet for safety and COSHH requirements. !
!
BATTERY REMOVAL
1. Remove the seven M6 bolts securing the
tracking controls front guard.
2. Remove the two M10 bolts securing the
battery clamp.
3. Remove the negative battery lead.
4. Remove the positive battery lead.
BATTERY MAINTENANCE
1. Remove the seven M6 bolts securing the
tracking controls front guard.
2. The battery can be serviced in this position.
When reinstalling the battery apply a small
smear of Vaseline to the terminals.
WARNING
Use plastic gloves to keep oil off skin and dispose of the used oil and filter in
an ecologically sound way. The oil and filter should be changed once a year
or at any time it becomes contaminated. Before starting check that the
chipper is standing level and brush away loose chips.
CHANGE HYDRAULIC OIL AND FILTER
! !
2
1
4
1. Remove the black screw cap from the top of
the filter housing.
2. Partially remove filter element from inner cup.
Leave filter to drain for 15 minutes.
3. Remove filter element from cup when clear of
hydraulic oil.
4. Remove drain plug and drain oil into a suitable
container.
5. Replace drain plug.
6. Refill with VG 32 hydraulic oil until the level is
between the min and max marks (about 15 litres).
7. Refit the filter cup, install a new filter element
and refit the black screw cap, with threadlock, to
the filter housing, ensuring o-ring remains in place.
NOTE: This is a non-adjustable air breather filter.

SERVICE INSTRUCTIONS 15
1. Turn the chipper off and remove the ignition
keys.
2. Remove battery leads.
3. Remove bolt and washer retaining roller box
guard and lift guard.
4. Remove the two springs on the roller box slide.
5. NOTE: Rollerbox slide weighs in excess of
20kg. Lift the roller box slide and wedge a
suitably sized piece of wood to hold in place.
6. Remove blade access cover.
7. Remove discharge tube. Turn the rotor by hand
by grasping fan section on rear of rotor disc until
blade is visible through aperture.
8. Use a small screwdriver to remove sap and
debris from Torx socket in screw - be
particularly careful to ensure every last piece
has been removed.
9. Undo blade screws using Torx socket drive
provided. Rotor will turn until Torx socket has
located on machine.
10. Before fitting replacement blades carefully
clean blade recess in rotor so that no debris
is trapped between blade and rotor.
11. When fitting blades replace any damaged
screws with new and coat each screw with
copperslip over the whole of the thread.
12. Retighten each screw to 60Nm (45lbs ft).
NOTE: This torque setting is vitally
important to ensure your bolts come out
at a later date,Timberwolf recommend you
purchase a torque wrench for this and
other jobs on the chipper.
13. Grease all surfaces of the roller box sliding
mechanism (see diagram on page 17).
14. Replace blade access cover.
15. NOTE: Rollerbox slide weighs in excess of 20kg.
Remove wedge, lower roller box slide and
replace springs.
16. Close roller box guard and ensure bolt and
washer are tightened.
17. Refit battery leads.
WARNING
Wear riggers gloves for the blade changing operation.
CHANGE BLADES
!
!
3
4
5
6
8
9
10
3
7
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

SERVICE INSTRUCTIONS 16
CHECK FITTINGS
TENSION DRIVE BELTS
All the hydraulic hoses should be regularly inspected for chafing and leaks. The hydraulic system is
pressurized to over 150 Bar (2175 PSI) and thus the equipment containing it must be kept in good condition.
Identify the hoses that run to the top motor. These have the highest chance of damage as they are
constantly moving. If any hydraulic components are changed new seals should be installed during
reassembly. Fittings should then be retightened.
1. Remove side panel.
2. Loosen bolt in centre of tensioner pulley with a 19 mm
spanner so that pulley is able to slide with minimal wobble.
3. Turn nut in end of tensioner pulley slider until correct belt
tension is achieved and lock the tensioner pulley bolt back
up again. Tension is correct when 4.5kg of force deflects
one belt 6 mm at the centre of its span. (Push the belt firmly
with your finger; it should deflect to roughly the depth of your
fingernail).
4. Run machine and test, recheck belt tension.
5. NOTE: Slack drive belts will cause poor performance and belt /
pulley wear.
2
3
GREASE THE ROLLER DRIVE SPLINES
NOTE: This should be done four times a year or every 50 hours. If the grease in the splines is
allowed to dry out, rapid wear of the roller splines will occur resulting in a breakdown and the
need to fit replacement parts. This failure is not warranty.
1. Remove bolt and washer retaining roller box guard and lift guard
(as shown in the diagram on page 15).
2. Locate two grease nipples; one in the centre of each roller shaft.
3. Use a pump action grease gun to apply a generous amount of
grease to each roller drive.
4. Close the roller box guard and refit the washer and bolt.
2
Refer to your Engine Manufacturer’s Handbook for detailed instructions on the following:
Changing the fuel filter.
Checking the engine oil.
Changing the engine oil.
Changing the engine oil filter.
The Timberwolf TW 150FTR/VTR is subject to large vibrations during the normal course of 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 of all fasteners. Fasteners should be
tightened using a torque wrench to the required torque (see below).
CHECK HOSES
Size Pitch Head Torque Ibft Torque Nm
Blade Bolts M10 Standard T50 Torx 40 54
Hyd Motor Retaining Bolts M10 Standard 17mm Hex 34 46
Funnel Retaining Nuts M12 Standard 17mm Hex 38 51
General M8 Standard 13 mm Hex 17 23
General M10 Standard 17 mm Hex 34 46
General M12 Standard 19 mm Hex 60 80
ENGINE MANUFACTURER’S HANDBOOK

SERVICE INSTRUCTIONS 17
GREASE THE ROLLER BOX SLIDES
NOTE: This should be done regularly. In dirty or dusty conditions or during periods of hard
work it should be done weekly. If the slides become dry the top roller will tend to hang up and
the pulling-in power of the rollers will be much reduced. Excessive wear will ensue.
1. Turn the chipper off and remove the ignition keys.
2. Remove battery leads - ensure machine has come to a complete
stop.
3. Remove the bolt and washer retaining roller box guard and lift guard.
4. Remove the two springs on the roller box slide.
5. NOTE: Rollerbox slide weighs in excess of 20kg.
Lift the top roller and wedge a suitably sized piece of wood to hold
in place.
6. Apply thin grease with a brush to each slide on roller box and on
inner cheeks of slider.
7. NOTE: Rollerbox slide weighs in excess of 20kg.
Remove wedge, lower roller box slide and replace springs.
8. Close roller box guard and refit bolt and washer.
9. Refit battery leads.
6
3
5
4
GREASING ROTOR BEARINGS
Both front and rear bearings are sealed and do not need greasing.
SAFE MAINTENANCE
Solidly support the under carriage if it needs to be lifted up for maintenance (see Jacking
Beam section on page 12).
Hydraulic systems may get very hot after working.
Keep all components in good condition as they are exposed to high pressures.
Immediately repair damage and replace worn or broken items.
Keep the tracks clean, removing excss oil, grease and dirt.
Check for oil leaks and damaged hoses.
Only use recommended lubricants. Do not mix different brands.
Use only Hinowa spare parts.
Keep track stretcher grease nipples clean.
TRACK BASE MAINTENANCE
To fill with oil, track the machine until the gearbox casing is level with a
plug positioned at 12 o’clock as shown. Unscrew the two plugs and fill
from the upper hole until oil reaches the level of the lower hole.
REPLACE OIL IN THE TRACK DRIVE UNIT
Maintenance intervals are only guidelines. They should be increased if severe conditions are
encountered. Dispose of lubricants only in accordance with current environmental protection regulations.
OIL FILL MAXIMUM LEVEL

SERVICE INSTRUCTIONS 18
To drain the oil, track the machine until a plug is at 6 o’clock as shown.
Unscrew both plugs and allow oil to discharge into a suitable container.
Dispose of waste oil in a safe and approved way.
DRAINING THE OIL IN THE TRACK DRIVE UNIT
REDUCTION UNIT OIL TYPES
We recommend, for track drive gearboxes, using gear oils with E>P. additives and viscosity to SAE
80W/90 or ISO VG 150. Continuous duty temperature must not exceed 90oC.
DRAIN PORT VENTING
The structure of the rubber track is shown in this
diagram. The steel cables (1) and metal core (2) are
embedded in the rubber.
There are many ways in which rubber tracks may be
damaged. Some of these are terminal for the tracks,
others are only cosmetic.
CHECKING THE RUBBER TRACKS
BREAKAGES OF STEEL CABLES AND METAL CORES.
Excess track tension can cause steel cables to break. Excess tension may be caused by;
Stones or foreign matter accumulating between the track and the undercarriage frame.
The track slipping off its guide system.
Extreme friction such as rapid changes in direction.
Improper contact between track and sprocket.
Operation on sandy terrain.
FATIGUE CRACKS AND ABRASION.
Cracks at the base of tile carved profiles are caused by rubber fatigue due to bending.
Cracks and bends on the edge of the rubber are caused by manoeuvring the track on concrete
edges and curbs.
Cracks and abrasions in the rubber on the guide roller paths are caused by compression fatigue of
the rubber due to the weight of the wheel combined with operation on sandy terrain or repeated
sudden changes in direction.
Abrasion of the carved profile may be caused, in particular, by rotation on concrete or gravel
surfaces or hard surfaces.
Cracks on the outside surface of the track are often due to contact with gravel, sharp stones and sharp
materials such as sheet metal, nails and glass.
Cracks on the inside surface of the circumference and on the edge of the rubber are caused by
contact between track and the undercarriage structure or with sharp concrete edges.
These methods of damage are progressive. The track can continue to be used until wear exposes
the metal cores. If this exposure extends for more than half of the circumference of the track then it
is time to replace the track, even though it can still be used.
SPROCKET HOLE
CARVED
PROFILE
1
2

SERVICE INSTRUCTIONS 19
CHECKING TRACK TENSION
1. Stop your machine on a flat
and solid surface.
2. Lift it in safe conditions and
put stable supports under
the undercarriage frame to
properly support it.
3. Measure distance A at the
central roller of the undercarriage from the bottom of the roller to the rigid inside surface of the
rubber track. Track tension is normal if dimension A is between 10 and 15 mm.
4. Adjust tension as described in the following paragraph if track tension does not comply with
these dimensions (loose or too tight).
A
TRACK LOOSENING/TIGHTENING PROCEDURES
Track tension is maintained by grease in the adjuster unit. More grease will increase track tension,
less grease will decrease it.
The grease contained in the hydraulic track is pressurized. Never loosen the grease valve (No. 2, Fig.
2) for more than one turn. If the valve is loosened too much you risk expelling grease under pressure
and possible serious injury to the machine operator. Never loosen the grease nipple (No. 5, Fig. 2).
Remove gravel or mud when they are jammed between the sprocket and the track link before
loosening the track.
1. Remove the screws and take off the cover to access the
adjustment system.
2. To loosen the track turn the valve counter-clockwise no more than
one turn. One turn of valve is sufficient for loosening the track.
3. If grease does not start to drain out then slowly rotate the track.
WARNING
It is not normal for the track to remain too tight after turning the valve counter-
clockwise or for it to remain loose after introducing grease into the grease
nipple. Never try to remove the tracks or disassemble the track-stretching
cylinder since pressure of the grease inside the track is extremely dangerous.
!!
1
25
4. When you have obtained correct track tension then turn valve
clockwise and tighten it. Clean all traces of extruded grease.
5. To stretch the track connect a grease gun to grease nipple and
add grease until track tension falls within specified values.
Fig. 1
Fig. 2