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.