Timberwolf TW 350DHB Wood Chipper User manual

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INSTRUCTION MANUAL

TW 350DHB(t) WOOD CHIPPER

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 Entec Industries Ltd.

CONTENTS

TIMBERWOLF

TW 350DHB(t)

19.05.2016

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

Safe Transportation 8

Hitching onto the Tow Ball 8

Unhitching the Chipper 9

Adjusting the Towhead Height 9

Delivery 10

Operator’s Personal Protective Equipment Required 10

Manual Controls 10

Auto Controls 11

Emergency Stopping 12

Daily Checks Before Starting 12

Hydraulic Oil Lever Indicator 12

Fuel Level Indicator 12

Engine Controls 12

Starting the Engine 12

Controlling the Engine Speed 12

Stopping the Engine 13

Blade Wear 13

Before Using the Chipper 13

Starting to Chip 13

Jacking Point / Wheel Change 14

Discharge Controls 15

Operating the Turntable 15

Safe Lifting of the Chipper 15

Chipping 16

Blockages 16

SERVICE INSTRUCTIONS 17

Service Schedule 18

Safe Maintenance 19

Spares 19

Battery Removal and Maintenance 19

Change Hydraulic Oil and Filter 19

Copper Ease Safety Information 20

BatterySafety Information 20

Change Blades 20

Check Fittings 23

Check Hoses 23

Tension Drive Belts 23

General Greasing 24

Engine Manufacturer’s Handbook 24

WARRANTY STATEMENT 25

EC DECLARATION OF CONFORMITY CERTIFICATE 26

IDENTIFICATION PLATES 27

DECALS 28

ELECTRICAL DETAIL 30

HYDRAULIC LAYOUT 31

CIRCUIT DIAGRAM 32

PARTS LISTS 34

TIMBERWOLF

TW 350DHB(t)

1

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 350DHB(t). 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 16. Ensure that all operators are properly trained for operating this

machine, especially 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 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

TIMBERWOLF

TW 350DHB(t)

2

TIMBERWOLF TW 350DHB(t) & TW 350DHBA(t) SPECIFICATION

Engine type Hatz air cooled 4-cyl 4L41C

silent pack diesel engine

Maximum power 47kW (64hp)

Cooling method Air cooled

Overall weight with fixed head: 2,270kg

with adjustable head: 2,320kg

Starting method Electric

Roller feed Twin series hydraulic motors

Maximum diameter material 230mm (9")

Fuel capacity 38 litres

Hydraulic oil capacity 20 litres

Material processing capacity up to 12 tonnes/hr

Fuel type Diesel

The Timberwolf TW 350DHB(t)

2675mm, (1620mm with discharge removed)

The Timberwolf TW 350DHB(t) / TW 350DHBA(t) brushwood chipper has a feed aperture 240mm high x

350mm wide and is designed to chip solid wood material up to 230mm (9”) in diameter including

timber branches, saplings and brushwood. It is capable of chipping up to 12 tonnes of brushwood per hour.

The TW 350DHB(t) /TW 350DHBA(t) is powered by an on-board air cooled diesel engine and feed to

the chipping chamber is via twin hydraulically powered rollers. The chipping chamber is turntable

mounted on a T-pole chassis with an integral braking system designed to allow the machine to be

towed to the place of work on the public highway.

Towing Length: 3580mm, Working Length: 4030mm

TW 350DHBA(t)

Adjustable tow head

TW 350DHB(t)

Fixed tow head

Towing Length: 3800mm, Working Length: 4265mm

DIMENSIONS

Serial No. Location

The serial number can be found

on the identification plate

located on the chassis beam.

2070mm

TIMBERWOLF

TW 350DHB(t)

3

FEED FUNNEL

DISCHARGE

TUBE

DISCHARGE

BUCKET

SAFETY BAR

FIXED BELT

GUARD

FIXED ROLLER

BOX GUARD

FUEL FILLER

CONTROL

PANEL

FEED

TRAY

TOW HEAD

ENGINE

ROLLER CONTROLS

JOCKEY

WHEEL

ASSEMBLY

ROTOR HOUSING

ROLLER

CONTROLS

(ON EACH

SIDE)

DISCHARGE

ADJUSTMENT

CONTROL

THROTTLE

SERVICE GUARD

(FUEL FILTER & ENGINE RESTART) HYDRAULIC OIL FILLER

DIPSTICK

MOVING ROLLER

BOX GUARD

MOVING BELT

GUARD

ENGINE OIL FILTER

OIL COOLER HATCH

MARKER LAMPS

EXHAUST

PARTS LOCATOR

TIMBERWOLF

TW 350DHB(t)

4

ROTOR

DRIVE

PULLEY

TOP

ROLLER SLIDE

ROLLER BOX

DRIVE

BELTS

SPARE

WHEEL

DIRECTIONAL

CONTROL VALVE

(COMPLETE WITH OIL FILTER)

TURN

TABLE LEVER

BATTERY

FUEL

TANK

HYDRAULIC

OIL TANK

ENGINE

PULLEY

TRIGGER

WHEEL AND

SENSOR

BELT

ADJUSTER

HYDRAULIC

GAUGE

HYDRAULIC

FILTER

PARTS LOCATOR

TIMBERWOLF

TW 350DHB(t)

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

SAFE WORKING

The chipper will feed material through on its own. To do this, it relies on sharp

blades both on the feed rollers and 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.

TIMBERWOLF

TW 350DHB(t)

6

ü

SAFE WORKING

GENERAL SAFETY MATTERS

D O ’ S A N D D O N ’ T S

DO NOT operate chipper unless available light is

sufficient to see clearly.

DO NOT use or attempt to start the chipper with-

out 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 allow -

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 machine

is running.

DO NOT use the chipper inside buildings.

- to enter the machine, as damage is likely.

ALWAYS stop the chipper engine before making

any adjustments, refuelling or cleaning.

ALWAYS check rotor has stopped rotating and

remove chipper ignition key before maintenance

of any kind, or whenever the machine is to be left

unattended.

ALWAYS check the machine is well supported and

cannot move.

ALWAYS operate the chipper with the engine set

to maximum speed when chipping.

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 operate the chipper in a well ventilated

area - exhaust fumes are dangerous.

BRICKS STRING CLOTH PLASTIC STONES

METAL GLASS RUBBER ROOTS BEDDING

PLANTS

ü

TIMBERWOLF

TW 350DHB(t)

7SAFE WORKING

NOISE TEST

MACHINE: TW 350DHB(t) & TW 350DHBA(t)

NOTES: Tested chipping 120mm x 120mm corsican pine 1.5m in

length

Noise levels above 80dB (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.

98.6 dB

99.2 dB

96.8 dB97.4 dB

R= 4 metres

Guaranteed Sound Power: 122dB (A)

101.8 dB

104.9 dB

As required by Annex III of Directive 2000/14/EC “Noise Emission in the environment by equipment for use outdoors”.

R= 10 metres

9

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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 clamps are tight before travelling.

KEEP tyre pressures inflated to 4.8 bar or 70 psi.

CHECK wheel nuts are tightened to 240lbs ft (325Nm).

CLEAR loose chippings and debris from the machine before travelling.

ENSURE the feed funnel is closed and the catches are properly engaged before travelling.

SAFE TRANSPORTATION

WARNING DO NOT RIDE ON THE CHIPPER WHEN IT IS BEING TOWED.

HITCHING ONTO THE TOW BALL

OPERATING INSTRUCTIONS 8

TIMBERWOLF

TW 350DHB(t)

CHECK the 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 the vehicle so the ball hitch is directly below the tow head.

ATTACH the breakaway cable to a strong point on the vehicle, not the ball hitch.

GRASP handle on tow head and pull up handle until it catches and remains in the ‘up’ position.

WIND the 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 folds into its tow position.

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.

CHECK turntable is located in the ‘tow’

position and the safety catch is locked in

position. TOW POSITION IS ALWAYS WITH

THE FUNNEL IN-LINE WITH TOWING

VEHICLE.

CHECK prop stands are fully retracted.

Funnel in correct

towing position

Do not tow with

rotated funnel

TIMBERWOLF

TW

9OPERATING INSTRUCTIONS

The TW350DHB (t) A chipper has the ability to adjust the towhead height to correspond with the

vehicles towing point.

The preferred towing angle of any chipper is with the chassis level to the ground. The adjustable head

has the ability to move between 300mm from the ground to 875mm giving an overall adjustment of

575mm.

The towhead latch and handbrake fundamentally work the same as a fixed standard towhead, how-

ever the front section of the head is retained in

position via a locking ring and single clamp handle.

To adjust the height the locking handle located

on the side of the head (1) is turned in an

anticlockwise direction to allow for the locking

ring to disengage from its apposing ring. An

internal damper is fitter to support the heads

weight allowing both hands free to adjust the

height. Once the desired height has been

achieved the locking handle is turned clockwise

until tight. The latching of the hitch is as normal

as is the fitting of the light plug and breakaway

cable as outlined in the ‘Hitching onto the tow

ball’ section on page 8 .

1

UNHITCHING THE CHIPPER

ADJUSTING THE TOWHEAD HEIGHT

DISCONNECT the electrical cable from the vehicle socket.

RELEASE breakaway cable.

WIND the jockey wheel assembly anticlockwise until it just starts to take the weight of the chipper.

GRASP the tow head handle and pull up until it catches and remains in the ‘up’ position.

APPLY the handbrake.

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.

THE chipper is now fully detached from the vehicle.

STABILISING THE CHIPPER

When the chipper is unhitched it should be made secure

before starting work by applying the handbrake and

lowering the 2 prop stands and jockey wheel (b).

When hitched to a vehicle the chipper handbrake

should be released and the 2 prop stands and

jockey wheel stored in the towing position (a).

WARNING DO NOT UNHITCH ON AN INCLINE AS THE AUTO- REVERSE

BRAKES MAY BE ACTIVATED AND THE CHIPPER WILL

ROLL BACKWARDS.

(a) (b)

TIMBERWOLF

TW 350DHB(t)

10

OPERATING INSTRUCTIONS

CHAINSAW safety helmet fitted with visor

and recommended ear defenders to an

appropriate specification.

HEAVY-DUTY gloves with elasticated wrist area.

CLOSE - FITTING heavy-duty non-snag clothing.

SAFETY footwear.

FACE MASK (if appropriate).

See page 5 for more detailed information.

DELIVERY

OPERATOR’S PERSONAL PROTECTIVE EQUIPMENT REQUIRED

MANUAL CONTROLS

All Timberwolf TW 350DHB(t) & TW 350DHBA(t) 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.

GREEN

FORWARD

FEED

PANEL

BLUE

REVERSE

FEED

PANEL

RED SAFETY BAR

Control Panel Diagram

Roller control boxes are located on the side of the feed tray and in the top of the guards (see Parts Locator

on page 3). Their function is to control the feed rollers, which draw material into the machine. They do not

control the main rotor. The rotor turns all the time the engine is running.

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 SAFETY BAR = This is the large red bar that surrounds the feed tray and side of the feed

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 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.

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.

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.

WARNING DO NOT remove, jam, disable, bypass, override or otherwise

impede the effectiveness of the red safety bar.

TIMBERWOLF

TW 350DHB(t)

11 OPERATING INSTRUCTIONS

LOCATE the machine on firm level ground.

CHECK machine is well supported and cannot move.

CHECK turntable locked in position and handle secured.

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 tray is in up position - to prevent people reaching rollers.

CHECK controls as described on page 13.

CHECK (visually) for fluid leaks.

CHECK fuel and hydraulic and engine oil levels.

For parts location see diagrams on pages 3 & 4.

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 “infeed” direction, or the reverse direction, until the rotor speed rises above

the predetermined level. At this point, the feed rollers will start turning without warning. When

applicable the roller whilst chipping will reverse a small distance to clear any blockages or attempt to

break awkward joints. When this action is repeated because blockage or joint is not cleared, manually

operate the reverse button on the control box to clear the blockage or remove joint to be cut with a

saw.

This can be viewed via the level gauge on side of the hydraulic tank (see parts

locator on page 4). Maximum and minimum marks are provided.

The fuel level can be seen via the level gauge on the side of the engine. To

illuminate gauge turn key to position 1 (see engine controls). Fill with fuel to full

position on gauge, do not overfill!

In the event of an emergency activating the red safety bar will stop the rollers immediately. To restart

the rollers, just push the green forward button or blue reverse button.

AUTO CONTROLS

EMERGENCY STOPPING

HYDRAULIC OIL LEVEL INDICATOR

DAILY CHECKS BEFORE STARTING

FUEL LEVEL INDICATOR

TIMBERWOLF

TW 350DHB(t)

12

ENSURE throttle lever is set in the idle position (tortoise).

INSERT key and turn to position 1.

DIAGNOSTIC lamps flash 3 times, engine operation (1) and battery charge (2) lamps will

continue to flash and red oil pressure lamp will stay illuminated.

CHECK fuel level gauge.

TURN key to position 2 to start engine, release immediately engine begins to run.

GREEN engine operation lamp remains illuminated while engine is running, all other lamps

must go out immediately.

WARNING - diagnostic lamps will illuminate if a fault is detected while engine is running. Switch

off engine immediately.

Note: Automatic shutdown may occur when fault is detected. Consult engine manufacturers

handbook for fault analysis and correction procedure.

The engine controls are in two locations. The engine ignition is on the

control panel at the engine end, and the throttle lever is on the side of the

engine (see parts locator on page 3).

HOURS

COUNTER

POWER

ON / OFF

& START

FUEL

GAUGE

The engine has two throttle settings, idle and fast. These are controlled by

the throttle lever on the engine. Moving the lever towards the ‘Hare’ on the

pictogram will increase engine speed while moving it towards the ‘Tortoise’

will decrease the engine speed. Always stop and start engine with throttle

lever in the idle position.

0 0 0 0 9 7 5

1. Engine operational indicator

2. Battery charge indicator

3. Oil pressure warning

4. Engine temperature warning

5. Air cleaner maintenance warning

6. Engine pre-heat lamp

0

1

2

ENGINE CONTROLS

STARTING THE ENGINE

CONTROLLING ENGINE SPEED

OPERATING INSTRUCTIONS

TIMBERWOLF

TW 350DHB(t)

13

CHECK that the chipper is running smoothly.

RELEASE the catches on the feed tray and lower.

ENSURE throttle lever is moved to fast (hare) position.

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

12

PRESS THE GREEN BUT-

TON

THE ROLLER

SHOULD TURN FORWARDS

PRESS THE RED

SAFETY BAR

THE ROLLER

SHOULD STOP

PRESS THE BLUE BUTTON

THE ROLLER SHOULD TURN

BACKWARDS ONLY WHILE THE

BUTTON IS PRESSED

WITH THE ENGINE RUNNING AT FULL SPEED

ADJUST the throttle lever to idle position.

ALLOW engine revs to drop and run at idle speed for 1 minute.

TURN key to position 0. The engine will continue to run for a short time before stopping.

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 350DHB(t) is fitted with 4 blades 180 mm (7") long. They are 100 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 on the

reverse side 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.

STOPPING THE ENGINE

WARNING Do not open or remove any guards, attempt any adjustments or

maintenance until engine has come to a complete stop.

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.

OPERATING INSTRUCTIONS

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. Tests should be

carried out on both control boxes (located on each side of the funnel).

BEFORE USING THE CHIPPER

TIMBERWOLF

TW 350DHB(t)

14

When the chipper needs any service work that requires you to position yourself under the chipper,

appropriate supports MUST be used. To allow the supports to be installed use the rear prop stand pad

as the jacking points. Never use the axle or drop arm to raise the chipper as it will become unstable and

tip up. Position the support at the rear of the chassis rail (as shown in picture below).

When the chipper is required to be raised off the ground i.e. to change a wheel, the appropriate type

and correct rating jack must be used. It must be positioned under the rear prop stand on the same side

as the wheel to be changed.

Place the chipper on firm level ground.

Lower the jockey wheel to take the weight at the front of the chipper

Remove the spare wheel clamp and slide the spare wheel from its dock.

Chock opposite wheel to prevent chipper rolling whilst loosening and removing wheel.

Crack the wheels nuts off the required wheel. Do not remove them completely.

Place a jack under the pad of the prop stand on the same side as the wheel to be removed.

Raise the chipper off the ground allowing enough clearance to fit a fully inflated tyre/wheel.

Remove all wheel nuts and then remove the wheel from hub.

Place new wheel on hub - ensure new wheel/tyre configuration is correct specification.

Replace all the wheel nuts to hand tight but do not fully tighten them with the chipper off the

ground as this may cause the chipper to become unstable.

Lower the chipper down onto the ground and remove jack.

Use an appropriate torque wrench and tighten the wheel nuts to 240lbs ft (325Nm) in a

diagonal fashion until the entire set of wheel nuts are of the correct tension.

Check wheel nut torque after the first

20 miles then every 1000-1500 miles

thereafter.

IF IN DOUBT HAVE A QUALIFIED

PERSON CHECK WHEEL

INSTALLATION AND CORRECT

NUT TENSION AS SOON AS

POSSIBLE.

JACKING POINT / WHEEL CHANGE

WARNING

NEVER RAISE THE CHIPPER OFF THE GROUND WITH A JACK

POSITIONED UNDER THE AXLE, DROP ARM OR CHASSIS RAIL AS

THE MACHINE WILL BECOME UNSTABLE AND TIP. WHILST

SUPPORTED OFF THE GROUND NEVER POSITION ANY PART OF

YOUR BODY UNDER THE CHIPPER. THIS WILL ENDANGER ANY

PERSON IN CLOSE PROXIMITY AND MAY RESULT IN INJURY OR DEATH.

OPERATING INSTRUCTIONS

TIMBERWOLF

TW 350DHB(t)

15

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

To safely lift chipper firstly securely attach large Dee

shackle rated at 4 tonnes to BS 6994 1998 in top eye

and lift vertically using 4000kg rated strop. When

being raised/lowered the machine should remain

level, to guide machine attach rope to tow head.

DO NOT ALLOW ANYONE TO STAND DIRECTLY

UNDER THE CHIPPER.

For easier accessibility the chipper can be fed through

360o on the road chassis. Locate the turntable lever (see

parts locator on page 4).

To position turntable release locking handle catch, push

down on the handle and rotate the chipper to the

position required. The handle is spring loaded and will

drop in the next locking detent if not held down. Keep

handle lowered until desired position is reached, then

release and allow chipper to lock into the nearest lock-

ing detent. Reattach locking handle catch. Remember

to adjust your discharge tube (as described above)

accordingly.

Always return the turntable to the tow position (funnel

facing back) before hitching/towing.

Note: feed tray must be closed while rotating funnel/tray

through towhead area (see diagram).

4

Lifting eye located here

DISCHARGE CONTROLS

Controlling the discharge is an essential part of safe working.

OPERATING THE TURNTABLE

SAFE LIFTING OF THE CHIPPER

OPERATING INSTRUCTIONS

TIMBERWOLF

TW 350DHB(t)

16

CHIPPING

BLOCKAGES

OPERATING INSTRUCTIONS

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.

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 chipper and remove key.

REMOVE discharge tube.

CHECK that the discharge tube is clear.

OPEN rotor housing by removing the 2 retaining nuts.

REMOVE as many chips as possible (the rotor housing does not have to be completely clear

to continue).

SHUT the rotor housing and replace both bolts securely. Torque to 60lbs ft (80Nm).

REPLACE the discharge tube.

RESTART the engine.

ALLOW machine time to clear excess chips still remaining in rotor housing before you continue feed-

ing brushwood. Feed in a small piece of wood while watching to make sure that it comes out of the dis-

charge. 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.

Wood up to 230 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.

When installed, the ‘Auto Reverse’ will back out the material a short distance then switch forward. If the

awkward piece is not broken by the rollers 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 then remove wood. Reposition the wood to feed into the funnel or use a

saw to cut into smaller sections. If the rollers continue to stall in the 'forward feed' or 'reverse feed' po-

sition push the RED STOP BAR, turn engine off, remove ignition key and investigate.

TIMBERWOLF

TW 350DHB(t)

17

THE FOLLOWING PAGES DETAIL ONLY

BASIC MAINTENANCE GUIDELINES SPECIFIC

TO YOUR CHIPPER.

THIS IS NOT A WORKSHOP MANUAL.

THE FOLLOWING GUIDELINES ARE NOT EXHAUSTIVE AND DO NOT EXTEND

TO GENERALLY ACCEPTED STANDARDS OF ENGINEERING/MECHANICAL

MAINTENANCE THAT SHOULD BE APPLIED TO ANY PIECE OF MECHANICAL

EQUIPMENT AND THE CHASSIS TO WHICH IT IS MOUNTED.

AUTHORISED TIMBERWOLF SERVICE AGENTS ARE FULLY TRAINED IN ALL

ASPECTS OF TOTAL SERVICE AND MAINTENANCE OF TIMBERWOLF

WOOD CHIPPERS. YOU ARE STRONGLY ADVISED TO TAKE YOUR CHIPPER TO

AN AUTHORISED AGENT FOR ALL BUT THE MOST ROUTINE MAINTENANCE

AND CHECKS.

TIMBERWOLF ACCEPTS NO RESPONSIBILITY FOR THE FAILURE OF THE

OWNER/USER OF TIMBERWOLF CHIPPERS TO RECOGNISE GENERALLY

ACCEPTED STANDARDS OF ENGINEERING/MECHANICAL MAINTENANCE

AND APPLY THEM THROUGHOUT THE MACHINE.

THE FAILURE TO APPLY GENERALLY ACCEPTED

STANDARDS OF MAINTENANCE, OR THE PERFORMANCE

OF INAPPROPRIATE MAINTENANCE, MAY INVALIDATE

WARRANTY IN WHOLE OR IN PART.

PLEASE REFER TO YOUR AUTHORISED

TIMBERWOLF SERVICE AGENT FOR

SERVICE AND MAINTENANCE.

SERVICE INSTRUCTIONS

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Timberwolf TW 350DHB Wood Chipper User manual

Timberwolf TW 350DHB Wood Chipper User manual

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