Redgum GX390 User manual

WARNING
Read this manual, before operating or servicing the GX390 Chipper.
This manual accompanies the RedGum GX390 Chipper,
powered by the Honda GX390 engine
RedGum GX390 Chipper
Owner’s Manual
GX390 Chipper
RedGum

Read this operation manual carefully before attempting to assemble,
adjust or operate the machine. Please read the included engine manual for
more information on your specic engine.
Hazards and safe operation symbols
IMPORTANT: READ BEFORE USE
PLEASE KEEP THIS MANUAL FOR FUTURE REFERENCE
This label is for the engine switch. If you want to start the
engine, put the switch to ‘ON’ position. Turn the switch to
‘STOP’ position to stop the engine.
Muffler heat warning. Do not touch the HOT muffler
during and after use of the chipper.
Ensure that ear muffs, goggles and gloves are worn
when using the chipper, and read the manual before
using the chipper
Danger - Rotating blades. Keep hands and feet out of
openings while machines are running.
Check if any fuel spills or leaks. Stop
the engine before refueling.
Exhaust gas contains poisonous carbon monoxide
Never operate this product in an enclosed area. Be
sure the work area has adequate ventilation. Also
avoid working downwind from exhaust.
Recommeded Oil type: SAE 10W30
Moving the level will adjust the revolution speed of
engine. Move lever towards the rabbit icon for speeding
up and towards the tortoise direction for slowing down.
The fuel supply to the engine can be switched off.
Attention and warning
Recommeded Oil type: SAE 10W30
The fuel supply to the engine can be switched off.
2

Safety
These safety messages are designed to alert you to possible dangers or hazards that could cause
death, injury or equipment/property damage if not understood or followed. Safety messages and
warningsareidentiedthroughoutthismanualwiththissymbol.
It is important that you read and understand the instruction manual before use and keep the
manual in a safe place for future reference.
Read all safety warnings and all instructions. When using the chipper, basic safety precautions
detailedheremustalwaysbefollowedtoreducetheriskofre,personalinjuryandproperty
damage.
IMPORTANT: Handle the equipment safely and carefully.
BEFORE USE: If after reading this manual you are still unsure of the safe operation/handling
of the chipper, or are in any way unsure of any aspect of correct use, you should complete a
trainingcourseconductedbyapersonororganizationqualiedinsafeuseandoperationofthis
equipment.
WARNINGS:
- Read all safety warnings and all instructions. When using the chipper, basic safety precautions
detailedheremustalwaysbefollowedtoreducetheriskofre,personalinjuryandproperty
damage.
-Donotoperatethechipperinammableorexplosiveenvironments,suchasinthepresenceof
ammableliquidsorgases.Thechippermaycreatesparksorheatthatmayignitevapors,dustetc
-Keepclearofmovingparts.
- Chipper may be a potential source of injury if misused.
-Donotoperatethechipperifitisdamaged,malfunctioningorisinanexcessivelywornstate.
-Donotallowotherstousethechipperunlesstheyhavereadthismanualandareadequately
trained.
General work area safety
Work areas should be clean, free of obstacles and well lit.
Do not operate the equipment if bystanders, animals etc are within 15 metres of the equipment or
the general work area.
General Personal Safety
Operators must use the equipment correctly. When using the equipment, consider conditions and
pay due care to persons and property. The chipper should be operated by responsible adults only,
18yearsofageandover.
Preventunintentionalstartingoftheequipment-ensureequipmentandpowersourceswitchesare
intheOFFpositionbeforestoringormovingtheequipment.Donotmoveequipmentwithhands/
ngerstouchinganycontrols.Removeanytoolsorotheritemsthatarenotapartoftheequipment
from it before starting or switching on.
Stayalertandusecommonsensewhenoperatingequipment.Donotoverreach.Keepproper
footingandbalanceatalltimes.Donotuseequipmentwhentiredorundertheinuenceofdrugs,
alcohol or medication. This equipment is not intended for use by persons with reduced physical,
sensory or mental capabilities.
3

Youmustwearappropriateprotectiveequipmentwhenoperating,servicing,orwheninthe
operating area of the equipment to help protect from serious injury, including eye injury, inhalation
oftoxicfumes,burns,andhearingloss.Alwaysweareyeprotection.Protectiveequipmentsuch
asnon-skidsafetyshoes,hearingprotection,gloves,gogglesetcshouldbeused.Otherpeople
nearbyshouldalsowearappropriatepersonalprotectiveequipment.Donotwearlooseclothingor
jewellery,whichcanbecaughtinmovingparts.Keephairandclothingawayfromtheequipment.
General equipment use and care
Do not force the equipment. Use the correct equipment for your application. The correct equipment
will perform better and be safer within its design parameters.
Do not use the equipment if the ON/OFF switch malfunctions – any equipment that cannot be
controlled with the ON/OFF switch is dangerous and must be repaired.
Use the chipper in accordance with these instructions, taking into account working conditions and
the work to be performed. Using the chipper for operations different from those intended could
result in hazardous situations.
The equipment is not weatherproof, and should not be stored in direct sunlight, at high ambient
temperaturesorlocationsthataredamporveryhumid.
Beforeuse,inspecttheequipmentformisalignmentorbindingofmovingparts,loosecomponents,
damageoranyotherconditionthatmayaffectitsoperation.Ifdamaged,havetheequipment
repairedbyanauthorizedservicecentreortechnicianbeforeuse.
Alwayskeeptheequipmentproperlymaintained.Keeptheequipment,controlsandhandlesdry
and free from dirt, oil and grease.
Storetheequipmentoutofreachofchildrenoruntrainedpersons.Toavoidburnsorrehazards,
lettheequipmentcoolcompletelybeforetransportingorstoring.Neverplacetheequipmentin
placeswherethereareammablematerials,combustiblegasesorcombustibleliquidsetc.
Chipper use and care:
-Thechippermustbeusedonrm,atandlevelsurfacesonly.
- Maintain a safe working distance of at least 15m (36’) between the output chute and any
persons, animals or structures.
- Before each use, check the cutting blade clearance is between 0.6-0.8mm and ensure that
blade fasteners are tight.
- Do not use the equipment for purposes it is not designed for.
- Do not attempt to chip or shred branches bigger then 90mm diameter.
- Branches greater than 30mm diameter that are growing out of a branch being chipped should be
cut off and chipped separately.
- Do not attempt to chip or shred any material other than suitable wood types.
-Donotattempttoremovematerialsfromthemachineorattempttoun-jamitwhilethemachine
is running.
-Donotusethemachineinconnedareaswhereventilationorspacearoundthemachineis
limited.
-Afterstoppingtheengine,alwaysallowallmovingcomponents(bladesetc)tostopmoving
beforemoving,liftingetc.
General fuel safety
- Do not spill fuel. If you spill fuel, wipe it from equipment immediately – if fuel gets on your
clothing, change them immediately
- Do not smoke near fuel.
-Alwaysshutofftheenginebeforerefuelling.
4

Operating Warnings
GENERAL OPERATION WARNINGS:
-Alwayswearsuitableprotectiveclothingwhenusingthemachine,avoidloosettingclothing.
- Inspect the machine before each use and check for wear or damage. If the machine is
damaged,haveitinspectedandrepairedatanauthorizedservicecentrebeforeusingitagain.
-Ifyouexperienceexcessivevibrationornoiseornoticeablyreducedperformancefromthe
machine during operation, this is an indication of possible wear or damage. It is recommended to
haveitinspectedandrepairedatanauthorizedservicecentrebeforeusingitagain.
- Be aware that once the engine is running, the cutting blades will be rotating and parts of the
machine,suchastheenginemufermaybeextremelyhot.
-Ensurethatthemachinestandsrmlyonthegroundandisnottiltedinanywayorunstable.
-Inordertoavoidseriousinjuryordamagebychipsthrownfromtheoutputchute,onlookers,
animals and structures should be at least 15m (36 ft) away from the output chute.
Chipper Warranty
For all chipper warranty information in regards to both for the 3 year engine and 1 year body
warrantypleasevisittheRedGumProductswebsiteat(http://www.redgumproducts.com.au/)for
more information.
5
Running petrol engines in con ned areas CAN KILL IN MINUTES. Engine exhaust fumes contain
carbon-monoxide – a deadly gas that you cannot smell or see.
NEVER run a petrol engine in con ned areas EVEN IF windows and doors are open.
Do not operate the equipment in hazardous locations, such as where there may be a risk of  re.
Do not refuel petrol engines while they are running.
Never smoke while refuelling petrol engines.
This chipper has hazardous components, such as blades, hot surfaces and moving parts.
General Safety
- Replacement parts must be original equipment manufacturer (OEM) to help ensure that
equipment safety is maintained.
- Do not attempt any maintenance or repair work not described in this instruction manual.
-Afteruse,theequipmentandcomponentsmaystillbehot–allowtheequipmenttocooland
disconnect the spark plug before making adjustments, changing accessories or performing repair
or maintenance.
- Do not make adjustments while the equipment is running.
-Performallservicerelatedactivitiesundersuitableconditions,suchasaworkshopetc.
- Replace worn, damaged or missing warning/safety labels immediately.
-Donotcleanequipmentwithsolvents,ammableliquidsorharshabrasives.
- Do not refuel a hot engine.
- Open the fuel cap carefully to allow any pressure build-up in the tank to release slowly.
-Alwaysrefuelinwellventilatedareas.
-Alwayscheckforfuelleakage.Iffuelleakageisfound,donotstartorruntheengineuntilall
leaksarexed.
DANGER

Table of Contents
Hazards and Safe Operation Symbols 2
Safety 3
Operating Warnings 5
Chipper Warranty 5
Before Use Checklist 7
Check cutting blades 7
Engine oil 7
Fuel 7
Engine starting and stopping 7
Chipper component Identication 8
What Does my Chipper Process 9
Chipping Warnings 9
Operating Instructions 10
How to use the chipper 12
Clearing Jammed Blades 12
 AdjustingtheOutputFlap         13
 Adjustingthedirectionalchuteadjuster       13
Safety cut off button 13
Maintenance 14
Maintenance Warnings 14
Blades 15
Blade warnings 15
 Bladeremoval/installation        15
Checking blade clearance 16
 Anviladjustment/removalandinstallation      17
Blade shaft lubrication 17
Sharpening the blades 17
Drive Belts 18
 Drivebeltwarnings          18
Belt tension adjustment. 18
 Beltremoval/installation         19
Cleaning Guidelines 19
Transportation and storage 19
Trouble Shooting 20
Specication 22

Before use checklist
Ensure that you carry out all procedures below before starting the engine or operating the
equipment. Failure to follow the checklist and carry out the procedures correctly may void
your warranty. Refer to engine owners manual.
Check Cutting Blades
The cutting system features a rotating drum that has 2 blades. For safe and correct operation, the
clearancebetweenthexedAnvil(Blade)androtorbladesmustbebetween0.5mm-0.8mmand
all blade fasteners must be tight.
Afterthersthourofuse,re-checktheblades.
Engine Oil
TheHondaGX390engineonthischipperrequires10W-30engineoil.Severeorirrepairable
damagemayoccuriftheengineisallowedtorunwithoutengineoil.Theengineoillevelshouldbe
checkedbeforeeachuse.Ensurethattheoillevelisatorjustunderthemaximumlevelindicator.
Refer to engine owners manual.
Fuel
The chipper uses regular unleaded fuel.
To ll or top up the fuel:
1. Ensure that it is not running /hot, please refer to the general fuel safety
2.Placethemachineinanuprightpositiononaatandlevelsurface.
3.Cleanthemachinearoundthefuelllersothatnodirtorothermaterialenterstheenginewhen
thecapisremoved.
4.Usingafunnel,carefullyllthetankwithfuel.Donotllabovethetopofthefuelstrainer.
5.Wipeawayanyresidualfuelfromthemachine.Iffuelhasbeenspilt,movethemachineaway
from the spillage before starting the engine.
Engine starting and stopping
Beforestartingtheengine,ensurethatyouhavefollowedallproceduresdescribedabove
Majorenginecontrolsareidentiedonthemachinebystickersorothermarkings.Tostartthe
engine:
1.FUEL: Place the fuel tap in the “ON” position. If necessary, “prime” the fuel system by gently
pullingthestartercord4to8times.Primingisrequiredwhenstartingtheengineforthersttime
or after the machine has used all fuel and the carburettor is now “dry”.
2.CHOKE and THROTTLE:Iftheengineiscold,placethechokeinthe“COLD”or“START”
position. If the engine is warm or the ambient temperature is high, place the choke in the “HOT” or
“RUN” position. Place the throttle control in the “Hare” or fast position.
3.IGNITION: Place the engine ON/OFF switch in the “ON” position. Ensure that the emergency
stop button is not engaged.
4.START: Slowly pull out the starter cord until you feel it engage with the engine, then pull it out
rapidly.Theengineshouldstart.Allowthestartercordtorewindslowly–donotletit“snap”back.
5. WARM-UP: It is good practice to allow the engine to warm-up and run smoothly before
chipping
Iftheenginedoesnotstart,repeatstep4.Iftheenginefailstostartafterseveralattempts,referto
Troubleshooting. To top the engine place the engine ON/OFF switch in the “OFF” position or press
the emergency engine stop button. If the engine is stopped using the emergency stop button, reset
the button by rotating it in an anti clockwise direction right until it “pops” up. The button must be
reset in order to start the engine again.
7

Chipper Component Identi cation
5
3
2
4
8
4
8
1
7
9
11
16
6
8
14
No.
1
2
3
4
5
6
7
8
9
10
11
Name
Infeed Hopper
Discharge chute
Wheel
Support leg
Frame
Drivebeltcover
Direction adjuster
Dischargeap
Hopperaps
AirFilterCover
On/Off Engine Switch
No.
12
13
14
15
16
17
18
19
20
21
22
Name
Throttle control
Handle
Blade shaft access
Emergency stop
Towbar
Spark Plug
Starting Cord
Fuel Tank Cap
Fuel Tap
Choke
DriveBeltTensioner
17
18
19
20
15
122021
13
22
10

11
9
What Does My Chipper Process
This chipper is designed for the following materials under 90mm in diameter:
- Branches & Pruning’s
- Palm Fronds
- Grass/Hay
- Bark
- Vegetable matter
- Paper / Cardboard
Use caution when feeding the below through the chipper, as they may shorten blade life span:
- Hard & Dry Timbers
- Dead wood
- Short / stubby items (feed with longer matter)
- Unclean material
Never feed the following into the chipper:
- Anymaterialsexceeding90mmindiameter
- Concrete
- Stones
- Metal
- Soil / Sand
- Bones
- Othersimilarhardabrasiveobjects
Chipping Warnings
- DO NOT overloadthemachinebyfeedingoverlylargematerialintoit,orfeedingataratethat
createsunnecessaryloads.Forsomewoodtypesthatareparticularlyhard,youmayhavetoreduce
the size of the material being chipped.
- DO NOT hold on to material as it is being drawn into the machine – always release the material.
- DO NOTattempttochiporshredtoughbrousplantmaterialsuchasaxorvines.
- DO NOT force material into the chipper.
- DO NOT attempt to chip branches bigger than 90mm diameter.
- DO NOT attempt to chip or shred any material other than suitable wood types.
- DO NOT attempttoun-jamorremovematerialsfromthemachinewhilerunning.
- DO NOT attempt repairs to the machine unless you are capable to do so. We recommend that
you contact your place of purchase to perform such repairs.
- When chipping large material, process one branch at a time.
- Branches greater than 30mm diameter that are growing out of a branch being chipped should be cut
off and chipped separately.
-Whenchippingroots,alwaysremoveanyattacheddirt,stonesetcbeforechipping.

10
Operating Instructions
MakesureyoufullyunderstandtheRedGumChipperowner’smanualandengineowner’s
manualbeforeattemptingtooperatethismachine.EnsuretheChipperhasbeenservicedinac-
cordance with this manual and the engine manual supplied with this chipper.
Preparation
1.Putthemachinesecurelyonalevelsurface.
2.Keep the operator area clear of other objects and obstacles.
3.Ensure no children, animals or bystanders are within a 15m (36ft) radius of the machine.
4.Beforeoperatingthemachine,pleasecheckthedirectionofthewindtoavoidworkingdownwind
oftheexhaustandthedischargechute.
5.Examinethemachinetomakesureitisingoodcondition.Checkthatallthescrews,nutsand
other fasteners are properly secured.
6.Ensuretheknifeandanvilaresecureandthecorrectgapbetweentheknifeandanvilissetas
per this manual.
7.Ensure that the Infeed hopper (1) is clear from any debris which might jam the knife drum on
startup.
8.Checkthattheairlterisclean(ref.enginemanualforservicinginformation)
9.Checkthatthefueltankisfullandtheengineoilisatthecorrectlevel.
10.Payattentionwhilehandlingfuels.Theyareammableandthevapoursareexplosive.The
points below should be followed at all times.
 -Alwaysensurethefuelcapisinplace&securelytightenedbeforestartingtheengine.
 -Anyspiltfuelmustbecleanedoffthemachinebeforestartingtheengine.
-If the fuel tank needs to be drained, it should be done outdoors.
11.Keepallguardsanddeectorsinplaceandchecktoseeiftheyareproperlysecuredandin.
good working condition before starting the machine.
Ensurethefollowingpracticesareadheredtobeforeandwhileoperatingthechipper:
1.Do not use hands or metal tools to push material into the Chipper hopper (1).
2.Keep your face and body away from the Chipper hopper (1) opening.
3.Do not allow body parts or clothing inside the Chipper hopper (1) or near discharge chute (2)
and other rotating parts.
4.Donottouchthemuferwhilethechipperisinoperationasitwillbehotandwillcauseburns.
Caution:Theenginemuferwillremainhotforalongperiodoftimeaftertheenginehasstopped.
5.Keepproperbalanceandfootingatalltimes.Donotoverreachandneverstandatahigherlevel
than the base of the machine when feeding material into it.
6.Check if there are any abnormal noises, smoke or shaking of the machine. If so, please turn
offtheengineimmediatelyandsolvetheproblem.Inspectfordamage;checkforandtightenany
loose parts and ensure damaged parts are replaced or repaired before continuing to operate the
chipper.Donotattempttoserviceorrepairthemachineorengineifyouarenotcompetenttodo
so.
7.Donotleavethemachinerunningunattended.
8.Keeptheengineareaclearofanydebristhatmightcauseoverheatingorcouldbedeemeda
rehazard.
9.Donotmoveortiltthemachinewhiletheengineisrunning.
10.Turn off the engine and turn off the fuel tap before transporting the machine.
11.Tomovethechipper,rmlyholdthehandle(2)withbothhands.Carefullyliftthehandle&
manoeuvrethechipperbackwardsorforwards.Payattentiontokeepingcontrolofthemachine&
walk slowly into position.

Chipping Branches
This chipper is designed to chip branches up to 90mm in diameter.
1.Start the engine (as per engine manual instructions) and allow the engine to gain optimum RPM
byslidingthethrottleleverto‘rabbit’.
2.The blade drum will start rotating as soon as the engine starts.
3.Feed long stems and long branches (ie. shrub and tree branches) into the Chipper Hopper (1)
for chipping by the rotating blades.
4.WhenfeedingbrancheslistentotheengineRPMandwatchchipsexitfromthedischargechute.
Do not let the engine RPM drop too low or the blade drum may become clogged.
5.The chipper will chip branches up to 90mm in diameter. Branches with large diameters (closer to
andupto90mm)willneedtobefedcomparativelyslowerthanbrancheswithasmalldiameter.If
large branches are feed into the chipper too fast the blade drum may stall and clog up.
6. Do not stand higher than the machine base
7. We recommend starting with smaller branches, and gradually increasing the size while you
become more familiar with the chipper and its capabilities
8.Pre-cutlargesidebranchessothatthebranchwillselffeedmoreefciently
9. Short pieces of timber tend to bounce around in the Chipper hopper (1). Feeding short pieces
together with longer branches reduces this.
10.OnceyouhavebecomemoreaccustomtothewayyourGX390chipperoperates,trytoprune
your branches to suit the chipper.
11.Ifyouarefeedingsoftmaterialsintothechipperitisadvisabletofollowthemwithamoresolid
branch.Mixingupthematerialsyouwanttochipwillimproveyourchippingefciencyandreduce
potential blockages.
11
12.Forbushybranches,feedthenon-bushyendintothechipperrst
13.Immediatelystoptheengineifyounoticeanyunusualnoisesorvibrationscomingfromthe
machine.
14.Keepawoodenbranchavailable(atleast650mmlong)toassistinpushingmaterialsthrough
the infeed chute.
15. Push the last branch you are chipping for the day all the way inside the Chipper hopper (1)
with a wooden tool (eg. wooden stick), and ensure it has been completely chipped before turning
offthemachine.LeavingunchippedbranchesintheChipperhopper(1)cancauseproblemswhen
younextstartthemachine.

CLEARING JAMMED BLADES:
Ifthemachinebecomescloggedorjammed:
followtheseinstructions:
•Firstturnofftheengineandremovethesparkplugcap,
•Ensure the engine and bladedrumhavecometoacompletestop.
•RemovetheChipperhopper(1)byremovingtheretainingboltsontheundersideofthehopper.
•SlidetheChipperhopper(1)sidewaystoclearthelocatingpins.WARNING:theChipperhopper
(1)isheavyandrequirestwo(2)peopletoremoveit.
•YoumayalsoneedtoremovetheDischargechute(2)byremovingtheretainingboltsatthefrontof
the chipper.
•You must continue to wear all eye and hand protection while unblocking the chipper.
•Caution:Thechipperbladesareextremelysharpandthereisdangerofentrapmentandinjury.
•Caution:Becarefulwhenremovingdebrisfromaroundtheknifedrumasthedrummayrotate
unexpectantlyresultingininjury.
•Using a suitable spanner on the end of the blade drum shaft, rotate the shaft as required.
•Neverrotatethebladedrumwithyourhandsalwaysuseaspanner.
B
A
How to Use the Chipper
12
WARNING: Use extreme caution when clearing jammed materials from the
chipper. The blade drum can rotate unexpectedly and cause severe injury to hands and
 ngers, if caution is not exercised when clearing out debris from the blade drum
•NeverstarttheenginewiththeChipperhopper(1)orthedischargechute(2)removed.
•Onceyouhaveclearedalldebrisslowlyrotatethebladedrumshaftwithaspannertoensureitis
clear and undamaged.
•Replace discharge chute (2) and Chipper hopper (1).
•Donotattempttoserviceorrepairthemachineorengineifyouarenotcompetenttodoso.We
recommend that you contact your place of purchase to perform such repairs.

13
Adjusting the output ap
Theoutputchutehasanadjustableapthatcanbeusedtohelp
directwherechippingswillfall.Toadjust:
1. Loosen (rotate anti clockwise)thethumb-screw(A).
2.Rotatetheap(B)asrequired–thehigheritis,thefurtheraway
the chippings will fall.
3. Firmly tighten the thumb-screw by hand.
Adjusting the directional chute adjuster
The output chute has directional chute adjuster which allows the
operator to adjust the chute into 11 different positions.
Toadjust:
1)Pushdownonthedirectionalchuteadjustmentleveruntilthe
lockingpinisreleased.(A)
2) Manually adjust the direction of the chute until the locking pin (not
sighted) is locked into one of the 11 adjustment positions.(B)
3)Alwayscheckthewinddirectionanddonotworkdownwindofthe
discharge chute.
4)Neverdirectthedischargechutetowardsanyoneoperatingthe
chipper or any bystanders.
Safety Cut Off Button
This chipper is equipped with a quick cut-off safety button. When
this button is pressed the engine is cut off, and the chipper will stop
quickly.
The engine remains cut out until the button is reset.
To reset the button, turn it in a clockwise direction. The button will
pop back out and the engine can then be started again as per usual.
Check for blockages and ensure the chipper drum can turn freely
B
A
A
B

14
Maintenance
MAINTENANCE WARNINGS:
-RunningpetrolenginesinconnedareasCANKILLINMINUTES.Engineexhaustfumes
containcarbon-monoxide–adeadlygasthatyoucannotsmellorsee.NEVERrunapetrolengine
inconnedareasEVENIFwindowsanddoorsareopen.
-Petrolisextremelyammable–keepclearofnakedamesorotherignitionsources.
-Donothavetheenginerunningduringinspectionandmaintenanceunlessspecicallyrequired.
-Theengineshouldbecoolenoughbeforeperformingmaintenanceactivities
-Somemaintenanceactivitiesdescribedmaybebeyondthescopeofsomeusers.For
proceduresthatyouarenotcomfortablewithordonothavethetoolsorexperiencefor,havethe
unitservicedbyaservicecentreorqualiedtechnician.
-Alwayswearhandandeyeprotectionwhenperforminganymaintenance.
Tokeeptheequipmentperformingatoptimalefciency,regularchecksandmaintenanceis
required.Propercareandmaintenanceensuresbestperformanceandlongestservicelife.
Check Before Each Use After 2 Hours Every 20 Hours
Check engine oil X
Clean/non-stale fuel X
Air Cleaner X
Ensure input/output chutes are clear of
obstructions X
Ensure all guards/deectors are in
good working condition X
Loose nuts & bolts X X X
Belt tension X X
Grease bearings X X
Check blade sharpness X
General Engine Maintenance Refer to engine owner’s manual
NOTE:Forinformationonenginemaintenance(checkingorchangingengineoil,airlter,
sparkplug etc), please refer to the Honda engine owners manual that comes with your chipper.

Blades
BLADE WARNINGS:
- If a blade is damaged (cracked etc), replace both blades.
- Keep blades in sets that are the same width. This will ensure proper drum balance
- Ensure that blades are kept in good condition and correct clearance (0.6-0.8mm) is maintained.
-Ensurethatallboltssecuringthebladesarermlytightened–checkthemregularly.
-Alwayshandlebladeswithprotectivegloveson.
-Maximumallowablegrindingofeachsideofthebladeis2.5mm.
- Do not use blades that are under 50mm in width.
When working on the blades, the job may be made easier by accessing the blade drum shaft in
ordertorotatethebladedrumasrequired.Dothisasfollows:
1.Removethe2bolts(A)securingthebladeshaftaccesscover(B)andremovethecover–this
allows access to the blade shaft so you can rotate the blades
2. Using a suitable spanner (C) on the end of the blade shaft, rotate the shaft as required. The
machineuses2blades(D)and1anvilplate(E)thatisboltedtothemachinebody.
15
A
B
C
Blade Removal Installation
Thecuttingbladewillbecomedullafterbeingusedforsometime.Thebladescanberemovedfrom
the machine in order to be sharpened or replaced. Note that the
bladeshave2cuttingedgesthatallowsyoutoswitchthebladearoundtousetheothercutting
edge.Youmustcontinuetowearalleyeandhandprotectionwhileservicingorrepairingthe
machine.
Toreplacetheblades:
1.Turnofftheengine&removesparkplugcover.
2.RemovemainChipperhopper(1)byremoving2retainingboltsontheundersideofthehopper.
Slide the Chipper hopper (1) side ways to clear the locating pins.
WARNING:theChipperhopper(1)isheavyandrequirestwopeopletoremoveit.
Caution:Thechipper
blades areextremelysharpandthereisdangerofentrapmentandinjury.
Alwayswearsafetygloves.
3.RemovetheDischargechute(2)byremovingtheretainingboltsatthefrontofthechipper.
D
E

6.Removethebladesandcleanthesurfaceunderthebladessoitisfreeofanydebris.
7. Clean the surface of the drum before reinstalling the blade.
8.Simplyturntheknifeoveriftheothersideoftheknifehasnotbeenusedyet.Alternativelyre-
place it with a new blade.
9. Install the blade holding bolts (do not tighten fully yet) and adjust the blade so that there is a
gapof0.6mm-0.8mmbetweentheknifeandtheanvilplate.Foradditionalinformationaboutblade
clearancerefertotheheading‘CheckingBladeClearance’.
10.Tightenthebladeboltsfullymakingsuretheyaretightenedevenlyandtothecorrecttorque
setting of 44.1NM or 32.5ft/lbs.
11.Repeatthisprocedurefortheotherblade.Alwaysreplacebothknivesasasetandcheckthat
they are the same width.
12. Carefully rotate the blade drum to make sure it is free of the housing and the blades do not
touchtheanvilplate.
13.Retthedischargechute(2).
14.RetthemainChipperhopper(1)byslidingthetoplocatingpinsintoplaceandreplacingthe
bottomholdingbolts.WARNING:theChipperhopper(1)isheavyandrequirestwo(2)peopleto
replace it.
WARNING:
•Never start the engine with the Chipper hopper (1) or the discharge chute (2) removed.
• Do not attempt to service or repair the machine or engine if you are not competent to do
so. We recommend that you contact your place of purchase to perform such repairs.
B
A
Checking blade clearance
The blade clearance should be regularly checked. Incorrect
blade clearance will affect machine performance.
To check blade clearance:
1.Removetheinputchutefromthemachine.
2. Clean away any chippings, dirt etc from the blades.
3.Use“feeler”or“thickness”gaugestomeasuretheexisting
gap(A).Thegaugemustdragalittlewhenbeingslidbetweentheblades–thismeansthe
measurement is fairly accurate.
4. If the blade requires adjusting, loosen (rotate anti clockwise) the blade bolts (B) just enough to
allowthebladetobemoved–donotremovethebolts.
5.Adjusttheclearancetowithinspecication(0.6-0.8mm).Iftheclearanceneedstobereduced,
gentlymovethebladetowardsthexedbladeasrequired.Iftheclearanceneedstobeincreased,
gentlymovethebladeawayfromthexedbladeasrequired.
6.Measuretheclearanceagainandensureitiswithinthespeciedrangebeforetighteningthe
blade bolts
7.Repeattheaboveprocedurefortheotherblade.
16
4. Using a spanner on the drum shaft, turn the blade drum slowly inside the chipper body so that
thebladesalignintotheproperposition(Sotheyarevisibleandeasilyaccessed).Caution:Be
carefulwhenremovingthebladesasthedrummayrotateexpectantlyresultingininjury.
We recommend that you lodge a piece of timber between the blade drum and chipper housing to
stopthedrumfromrotatingwhileservicingthechipper.
5.Removethebolts(rotateright)thatattachthebladestothebladedrum.

WARNING: Ensure all bolts are re-tightened properly
•Note: The anvil sharpness & positioning are critical to the performance of the chipper.
•Do not attempt to service or repair the machine or engine if you are not competent to do
Blade Shaft Lubrication
The shaft bearing housing (C) on either side of the machine
featuresagreasenipple(D).Agreasegunandgreaseare
requiredtolubricatetheshaftbearings.Normalautomotive
wheel bearing grease is suitable.
To lubricate the shaft bearings:
1.Attachthegreasegunhosetothegreasenipple
2. Inject one squeeze of grease.
3.Alwayslubricatebothshaftbearings.
Sharpening the blades
1.Maintainthesharpedgebytakingthe"burrs"offtheedgewithale.Thisisdonewiththeblade
stillonthedrumandshouldbedoneaftereverysessionofchipping.
2. The blades should be sharpened on a surface grinder. Use plenty of coolant while grinding to
avoidsofteningthematerial.Donotchangetheangleofthecuttingblade,changeingtheangle
will result in poor chipper performance. The optimal angle for the blade to be sharpened is 27.5°
(degrees).Maintainthesharpedgeofthebladebytakingtheimperfectionsofftheedgewithale,
Thisisdonewiththebladesstillonthedrum.Thisshouldbedonewitheverysessionofchipping.
Warning: Ensure all bolts are re-tightened properly.
Note:Thecuttingangleiscriticaltotheperformanceofthechipper.Werecommendthatyou
contact your place of purchase to arrange a professional re-sharpening of the blade.
WARNING:
Use extreme caution when clearing jammed materials from the chipper. The blade drum
can rotate unexpectedly and cause severe injury to hands and ngers, if caution is not
exercised when clearing our debris from the blade drum
17
D
C
3.Cleanallsurfacesandthenslideneworsharpenedanvilbackin.
4.Whenreinstallingtheanvil,thegap(A)betweentheanvilandthebladesattheclosestpoint
should be between 0.6-0.8 mm
5.Tightenanvilboltsoncethegaphasbeenset.
Gentlyturnthebladedrumwithaspannertoensurethe
bladesdonottouchtheanvilastheypassit.
6.Theanvilcanbesharpenedorreplacedwhenworn.
Anvil adjustment/removal and Installation
OvertimetheAnvilblademaywear.
1.ToremovetheAnvilloosen,butdonotremovetheboltsconnectingtheanviltothemachine.
2.Gentlyslidetheanvilout.

Drive Belts
DRIVE BELT WARNINGS:
  Ifadrivebeltisdamaged(cracked,breaking,tornetc),haveitreplaced.
  Ensurethatdrivebelttensionismaintained.
Themachineuses2“V”prolebeltstorotatethebladeshaft.Thebeltsusefrictionagainstthe
beltpulleystoprovidedrive.Ifthebeltsareadjustedincorrectly,orareworn,slippagemayoccur.
Slippage is usually noticeable by a “squealing” noise and/or slowing or stopping of the drum when
the machine is under load. The belts require maintenance/replacement when necessary.
Belt Tension Adjustment
Toadjustbelttension:
1.Remove(rotateanticlockwise)the8bolts(A)securingthedrivebeltcover(B),andremovethe
cover.
2. Loosen (rotate anti clockwise) the 4 engine mounting bolts (C) at the front and rear of the
engine.Donotremovethebolts.
3. Loosen (rotate anti clockwise) the 4 engine locating bolts (D) at the front and rear of the engine.
Donoremovethebolts.Dependingonthedirectionthatyouwanttomovetheengine(towards
themachinehandletoincreasebelttension),backofftheboltsandlocknutssufcientlysothe
enginecanbemoved.
4.Slidetheengineeitherforwardorbackward.Adjusttheenginepositionsothatwhenyoupress
hardonabeltitshoulddeectapproximatelyonethicknessofbelt.
5.Whenthebelttensioniscorrect,rmlytighten(rotateclockwise)theenginemountingbolts.
6. Screw in (rotate clockwise) the engine locating bolts until they make contact with the engine (do
notactuallymovetheengine),thenrmlytightenthelocknuts.
7.Checkthebelttensionagaintoconrmcorrecttension,andre-adjustifrequired.
8.Re-installthebeltcoverandrmlytighten(rotateclockwise)allbeltcovermountingbolts.
A
B
D
C
18
4.Slidetheengineeitherforwardorbackward.Adjusttheenginepositionsothatwhenyoupress

19
Belt Removal/Installation
Thedrivebeltscanbereplaced.Whenreplacingbelts,alwaysusethecorrectbelttype and replace
both belts at the same time.
1.Removethedrivebeltcover,asperprocessdescribedearlierunder“Belttensionadjustment”.
2.Loosentheenginemountingandlocatingbolts.Backofftherearenginelocatingboltssufciently
sothattheenginecanbemovedenoughtoremove/installthebelts.
3.Removethebeltfromthedrivepulleys.
4.Ensurethedrivepulleysarecleanandsmooth.
5.Placethenewbeltoverthepulleysthenadjustasdescribedabove.
Cleaning Guidelines
CLEANING WARNINGS:
-Donotusesolvents,chemicalsorabrasiveswhencleaningthemachine,asthismaydamage
some surfaces of the chipper
- Do not use high-pressure sprayers near the blade shaft bearings as bearing damage may result.
-Wearglovesorusesuitabletoolstoassistincleaning–donotusebarehands.
-Cleanthemachineaftereveryusetoensurebestperformanceandlongestservicelife.
-Avoidtiltingthemachinetoavoidpotentialfueloroilspillsorleaks.
How to clean your chipper:
- Use a slightly damp cloth, water and mild detergent for cleaning.
-Useabrushforpartsthataredifculttoreach.
-Ensureairventsandsurfacesdesignedforheatdissipationarefreeofobstructionsordebris.
-Itisrecommendedtolightlyoilthecuttingbladesaftereachusetohelppreventcorrosion.
-Ensureallchutesandapsarecleanandnotobstructed.
-Ensurethatallcontrolcables,levers,switchesetcarecleanandoperatenormallyandsmoothly.
Transportation and Storage
Always ensure that the machine is cool enough before transporting or storing. Petrol is
extremely ammable – always keep clear of naked ames or other ignition sources.
Preparing for Transport and Storage.
Clean the equipment before transport or storage.
Disconnect the spark plug lead.
Storetheequipmentinadry,well-ventilatedareaandoutofthereachofchildren.
Long Term Storage
Followthenormalproceduresforstorage,then:
-Drainthefuelsystem.Itisadvisedtohavethefueltankasemptyaspossiblebeforedraining.
1. Unscrew (rotate left) the carburettor drain plug. Use a suitable container to catch the
draining fuel, and allow the fuel to drain. Store the drained fuel in a properly sealed container.
2. Re-install (rotate right) the carburettor drain plug and tighten.
-Removethesparkplugandput30mlofcleanengineoilintothecylinder.Pullthestarterrope
slowly to distribute the oil. Re-install the spark plug.
- Lubricate the blade shaft bearings.
-Covertheequipmenttoprotectitfromdirtanddust.

20
Troubleshooting
NOTE: Someprocedureslistedheremayneedtobeperformedbyaservicecentreorqualied
technician.Donotattemptanychippermaintenanceorservicingifyouarenotcompetenttodo
so,orifyoudonothavethecorrecttoolsavailable.
Difculty starting the engine
Engine starts but does not idle
Possible Fault Action
Lack of Fuel Check that there is fuel in the tank and the fuel system is
primed. To further check if fuel is reaching the carburettor,
    removethecarburettordrainplug,andcheckiffueldrains.
Engine “OFF” Ensure engine ON/OFF switch is in the ON position. Ensure that the
emergency engine stop button is not engaged.
Notenoughortoo  Checkoillevel,toensurethatthelevelisatorjustbelowthe
muchengineoil  recommendmaximumlevel.
Bladesjammed  Removejammedmaterialfromthemachine
Carbonbuildupon Removethesparkplugandcleananycarbonfromtheelectrodes
spark plug before re-installing it.
Faultysparkplug  Removethesparkplug,thenreconnecttheplugleadtoit.Placethe
engine ON/OFF switch in “ON” position. Touch the spark plug electrode
to a part of the engine crankcase, away from the spark plug hole, and
    attempttostarttheengine–asparkshouldbevisibleacrossthe
    electrodesastheengineisrotated.Ifnosparkisvisible,replacethe
spark plug.
Engineooded  Placethechokein“HOT”or“RUN”position.LeavetheON/OFFswitch
    inthe“OFF”position.Pullthestartercordseveraltimestoassist
    clearingexcessfuelfromenginebeforeattemptingtostartengine.
Possible Fault Action
Blockedairlter  Checkandcleantheairlter
Idlespeedrequires Adjusttheidlespeeduntiltheenginerunssmoothlyandata
adjustment reasonable speed when idling
Excessive vibration
Possible Fault Action
Materialtoolargeor Removeoverlylargebranchesfromchipper.Reducesizeofmaterial
incorrect type being chipped. Reduce feed rate of material. Ensure all chutes are
free of obstacles and non-chippable materials (stones/metal etc)
Blades dull or Sharpen or replace cutting blades
damaged
Blade clearance Check that cutting blade clearance is between 0.6-0.8mm
incorrect
Fasteners loose Check all accessible fasteners for tightness.