JUNKKARI HJ 5 M User manual

HJ 5 M
JH5G
CHIPPERS
OPERATING INSTRUCTIONS
SPARE PARTS LIST
62375 YLIHÄRMÄ FINLAND
TEL. [phone]
FAX [phone]
HJ5-04EN
Junkkari

PAGE
2 FOREWORD 3
2.1 THE SIGN OF CAUTION
3 TECHNICAL SPECIFICATIONS 3
4 SAFETY PRECAUTIONS 4
4.1 GENERAL SAFETY 4
4.2 TRANSPORT AND SITE-CHANGING 4
4.3 MAINTENANCE AND REPAIRS 5
4.4 HYDRAULIC SYSTEM 5
5 LOCATION OF SAFETY DECALS AND
COMPONENTS, SERIAL NUMBER PLATE 6-7
6 OPERATING ENVIRONMENT 8
6.1 OBJECT OF USAGE 8
6.2 APPLICATIONS 8
6.3 LIMITATIONS OF USE AND PROHIBITED
USES 8
7 PRINCIPLE OF OPERATION 8
8 TRANSPORTATION, HANDLING AND
STORAGE 9
8.1 TRANSPORTATION 9
8.2 HANDLING 9
8.3 STORAGE 9
8.4 SPECIFIC NOTES ON TRANSPORTATION
SAFETY 9
9 TAKING A NEW MACHINE INTO USE 10
9.1 PREPARATIONS PRIOR TO OPERATING 10
9.2 DISCARDING THE EXPORT PACKAGING
MATERIALS 10
9.3 ATTACHMENT TO A TRACTOR 10
9.4 PTO SHAFT 11
10 ADJUSTMENTS 12
10.1 KNIFE
SETTING 12
10.2 ADJUSTMENT OF FEEDER MECHANISM
SPEED 13
11 OPERATING 13
12 MAINTENANCE 14
12.1 CUTTING KNIFE SHARPENING 14
12.2 LUBRICATION 14
13 FAULT FINDING CHART 15
13.1 DEVELOPMENT OF FAULTS 15
14 TERMS OF WARRANTY 16
15 SCOPE OF RESPONSIBILITY 16
SPARE PARTS SECTION 17-35
1 CONTENTS
2

3
2 FOREWORD
We thank you for your confidence in our product and also take this opportunity to wish you
every success in your profession.
We would ask you to read and to memorize the operating hints and instructions outlaid in this
manual. A full knowledge of the operation of the machine, together with correct
adjustments and careful maintenance guarantee a full working safety and un-interrupted
operation during busy working days.
It is of utmost importance that every aspect mentioned in this manual be fully understood
and that the instructions are complied with without exceptions. If in doubt on any point,
please do not hesitate to contact your dealer to clear it up.
We also hope that after acquainting yourself with the manual, you will take the trouble of
returning the undersigned warranty certificate back to the manufacturer.
2.1 THE SIGN OF CAUTION
This symbol is used throughout the manual to denote operations where
there is a risk of danger to the operator or any persons near the machine at
the moment of carrying out the specified operation.
The symbol is also used to denote any risk of danger which might befall
environment or property.
3 TECHNICAL SPECIFICATONS
Machine type HJ 5 M HJ 5 G
Cutter flange dia. 25" (63cm) 25" (63cm)
Cutter flange weight kg 97 97
Flange speed rpm 540-1000 540-1000
No. of cutter knives 4 4
Chip size 0.19-0.70" (5-18mm) 0.19-0.70" (5-18mm)
Stem dia. (max) 7" (17cm) 7" (17cm)
Cutting efficiency cu.m/h 4-8 4-8
Power requirement hp 25-70 25-70
Weight of basic model kg 295 397
Height in transport
position cm 83"(210cm) 83"(210cm)
Feed orifice size 9"x 8" (24cm x 22cm) 9"x 8" (24cm x 22cm)
Feed mechanism NA Yes (*)
NA Not applicable
(*) Utilizing tractor hydraulic system
SPECIFICATIONS OF YOUR PARTICULAR CHIPPER:
Model ________________________________
Serial No. ________________________________
Year of manufact. ________________________________

4
4 SAFETY PRECAUTIONS
4.1 GENERAL SAFETY NOTES
-CLOTHING: For the sake of personal safety use well-fitting clothing without any loose or
hanging projecting sleeves etc. which might be caught in the running machinery.
-OPERATING: Before attempting to operate the machine, acquaint yourself fully with the
attachment, controls and the operation of the machine.
-CAUTION DECALS: Always comply with all the cautions and instructions given on the
various caution decals on the machine.
-SAFETY EQUIPMENT: The machine may only be used when all its safety shields and
devices are in place and in a proper condition. For personal safety always wear a
hard hat (a lumberjack type) plus hearing and eye protectors.
-ATTACHMENT TO TRACTOR: Take special caution when attaching the machine to or
disengaging it from the tractor.
-DRAWBAR LOAD: Take into consideration the maximum allowed tractor drawbar and
hydraulic hitch loadings.
-PARKING: Make certain that the machine cannot start to move by itself while parked
between the working shifts.
-SAFE DISTANCE: Due to its operational principles, the machine has certain parts which
- cannot be fully safeguarded. A safe distance must therefore be kept to these components
while the machine is in operation. The operator must also take care not to allow any
outsiders to approach these points on the machine.
-OPERATIONAL NOTES: While the machine is operating, no persons, except the operator,
must be allowed to remain in vicinity of the machine.
1.Never enter the space between the tractor and the chipper when the chipper is being lifted
up, lowered or moved about.
2.Never go below or climb onto the chipper which is being held up above ground
supported on the tractor hitch without proper supporting stands.
3.Before starting up the chipper, make sure that it is correctly attached and that all safety
shields are in place and properly fitted.
4.Always ensure before starting to operate the machine that not outsiders remain within
the operational area.
. 5.Check the condition of the machine always at the end of a working shift. Pay special
attention to the mounting and attachment points.
4.2 RUN DOWN TIME
Junkkari HJ 5 run down time is
- loaded 10 seconds
- without load 40 seconds.
The noise level on the working site exceeds 85 db and for this reason ,
always use hearing protectors.
4.3 TRANSPORTATION AND TRAFFIC RULES
1.Always comply with the highway when transporting the machine on public roads.
2.For transportation on public roads, always fit the chipper with any locally required safety
accessories, such as additional rear lights, reflectors and SMV triangle.
3.Take care to note the allowed maximum axle weights, total weights and transporting
dimensions of the combination.
4.All accessories and equipment used for moving the chipper (chains, drawbars, tie-rods
etc.) must be ¨attached and placed in such a way that any inadvertent movements cannot
affect them in any manner when the machine is either operating or being transported.

5
5.The manoeuvrability of the tractor during any transportation and its steering or
braking characteristics may be affected adversely by trailed or hitchmounted i
mplements or extra weights. It is therefore imperative to ensure that the tractor can be
properly steered and braked down under all circumstances.
6.It is forbidden to carry passangers on top of a moving chipper.
7.The machine may be lifted only from points clearly marked for the attachment of a
lifting hook.
8.Always use only approved lifting ropes or chains and always also check their
condition before attempting a lifting operation.
9.If the machine is to be transported on a truck or a trailer bed, make sure to use proper
straps or chains to tie the machine.
10.If a fork lift or equivalent is used i.e. to load the machine on a truck, care must be
taken to ensure that the machine is properly balanced and that there is no danger of its
falling down on the ground.
4.4 MAINTENANCE AND REPAIRS
1. Before attempting any cleaning, lubrication, assembling or adjustment operations,
always ensure first that the tractor PTO is disengaged and the engine stopped. Remove
The ignition key from the starter switch to prevent any accidental starting up of the
tractor or the implement.
2.Use suitable blocks to make the machine securely immovable before commencing
any maintenance operations on the machine.
4.5 HYDRAULIC SYSTEM
1.After having coupled the chipper's hydraulic system to the tractor hydraulic system
outlets and started he engine, the chipper hydraulic system is pressurized by the high
Tractor system pressure. A burst of highpressure oil will penetrate the skin and may
cause grievous bodily harm.
A risk of injury exists even when looking for possible oil leaks.
2.Take extra care when handling any hydraulic components. Due to their nature there
exists a risk of skin cuts or getting fingers bruised between binding components.
3.When coupling the tractor and chipper hydraulic hoses together, the hydraulic systems
of both units must be non-pressurized.
PROTECTING ONESELF AGAINST OIL AND GREASE
1.Always wear suitable protective clothing and oilresistant gloves when handling oil or
grease.
2.Avoid skin contact with oil or grease as this may lead to skin damage.
3.Never use oil or grease for cleaning any part of your skin. These substances may
contain minor metallic particles which may cause scratching of hands, further
aggravated by the action of the oil.
4.Always comply with the handling and safety instructions given by the oil or lubricant
manufacturer.
5.Synthetic oils tend to be corrosive in many cases and cause intense irritation of the
skin.
WASTE OIL
1.Collect all of any used oil and take it to a hazardous waste disposal centre or
collection point to be duly disposed of as required by national regulations.
ACCIDENTS
1.Should any oil be spilled on ground its spreading into the soil must be stopped and the
oil removed e.g. by using peat to absorb the oil.
2.If any skin damage occurs while handling oil or lubricant call on a doctor
immediately.
NOTE THAT THE MACHINE IS MEANT TO BE OPERATED
BY ACOMPETENT OPERATOR. THUS, THE USE OF THE MACHINE
REQUIRES SUFFICIENT KNOWLEDGE AND SKILL.

5. SAFETY DECALS AND
COMPONENTS
AND SERIAL NUMBER PLATE
LIFTING BRACKET
BEWARE OF THE DRIVE SHAFT
MAX. ROUNDING
SPEED
USE EAR
PROTECTORS
OPERATING INSTRUCTIONS
AND SPARE PARTS BOOK
UNIVERSAL DRIVE
SHAFT HOOK
6
TYYPPI
TYPE
SARJANO:
SER.NR:
PUH. 964- 4835 111
PHONE [phone]
FAX. [phone]
FAX. [phone]
62375 YLIHÄRMÄ FINLAND
KG
4-57335
OY
1
23
4
5
SERIAL NUMBER PLATE
1. Manufacturing year within the EC
2. Machine model
3. Serial number and year model
4. Nominal weight without accessories
5. Name of the CE plate installer
NORM. 540 rpm
MAX . 1000 rpm
63336
27015
4-32173
VARUSTA NIVELAKSELI VAPAAKYTKIMELLÄ
JA YLISUOJAKYTKIMELLÄ 900 Nm
UTRUSTA LÄNKAXELN MED FRIKOPPLING
OCH ÖVERSKYDDSKOPPLING 900 Nm
EQUIP THE ARTICULATED SHAFT WITH
A FREE CLUTCH AND A OVERPROTECTOR
CLUTCH 900 Nm
DIE GELENKACHSE MIT EINER FREIEN
KUPPELUNG UND MIT EINER
ÜBERSCHUTZKUPPELUNG
900 Nm RÜSTEN
540 rpm
4-43353
MUNIR L’ESSIEU ARTICULÉ D’UN EMBRAYAGE Á
ROUE LIBRE ET D’UN INTERRUPTEUR DE
SURCHARGE 900 Nm

THE AREA OF DANGER IS 20 m
FOR SPRAYING DIRECTION
15070
BEWARE OF THE
FEED ROLLERS
FEED MECHANISM
STARTED AND
EMERGENCY STOP
HANDLE
7
14162
20m
4-14122
VAROITUS !
VARO liikkuvia osia !
PYSÄYTÄ kone ryhtyessäsi huolto- tai korjaustyöhön
PIDÄ lapset poissa koneen luota
VARNING!
VARNING för rörliga delar!
STANNA maskinen vid service- eller reparationsarbeten!
!
!
HÅLL barnen borta från maskinen!
WARNING !
BE CAREFUL with moving parts!
STOP the machine when repairing or making service!
TAKE CARE OF that children are not near the machine!
ÄLÄ AVAA SUOJIA
KONEEN KÄYDESSÄ!
ÖPPNA EJ SKYDD NÄR
MASKINEN ÄR I GÅNG!
DON'T OPEN THE COVER
WHEN THE MACHINE IS
RUNNING!
4-41534

8
6. OPERATING ENVIRONMENT
6.1 OBJECT OF USAGE
The purpose of a chipper is to produce chips from trees, which due to their diameter and other
measurements are suitable for feeding into the chipper's feed orifice. The in-fed material must
be clean. Dust, sand or soil ingredients accelerate wear on the knives very quickly. Metal bits,
nails e.g., cause denting of the knives. Any large metal pieces may severely damage the
chipper.
6.2 APPLICATIONS
If the chipper is intended to be used for chipping down card-board rolls, plastic piping or hard
boarding panels, please contact your dealer before commencing this kind of activity.
6.3 LIMITATIONS OF USE AND
PROHIBITED FORMS OF USE !
LIMITATIONS OF USE
- Limitations regarding the machine operator
The machine operator must not be under the influence of intoxicating substances, alcohol or
strong medication.
In cases of ill health or permanent disability the doctor in charge should be consulted for
permission to operate the machine.
Use of the chipper is prohibited for persons without the sufficient knowledge and skill required to
operate the machine and for persons under the age of 18 years.
- Prohibited forms of use
The chipper must not be used within any areas reserved for the conservation of nature.
The machine must not be used for spreading liquids, inflammable materials, sand or equivalent
non-fibrous materials.
Avoid using the machine in areas where its use could cause inconvenience to its surroundings
due to excessive noise or spreading of dust.
Chipping of highly inflammable materials is absolutely forbidden.
7 PRINCIPLE OF OPERATION
A chipper model not fitted with a feed mechanism operates on the principle that, while chipping
the stem or other wood material, the chipping knives mounted on the rotating chipping flange
draw in the material automatically. The feeding speed depends on the knife setting as follows: A
short knife setting results in a small chip size and a slow intake speed - a wide knife setting results
in a large chip size and consequently in a high intake speed. The chips produced by the action
of the knives are ejected through the knife flange orifices to the blower fan and out of the
machine through the discharge spout.
In chipper models, which are equipped with a feed mechanism, the intake of material is
power-assisted by a set of feed rollers driven by hydraulic motors. The motors in turn are
driven by pressurized oil either from the tractor hydraulic system or a self-contained,
independent hydraulic system via a control valve. The feed control lever has 4 positions:
stop, feed, stop and reverse.

9
8 TRANSPORTATION, HANDLING AND STORAGE
(DISTRIBUTOR/DEALER)
8.1 TRANSPORTATION
1. Terms of delivery is free at the factory gate unless other terms are mutually agreed upon.
2. The Distributor shall agree with the Manufacturer on the date upon which the product in
question is ready for delivery at the factory.
3. The Manufacturer shall take care of the loading of the product onto the goods vehicle
ranged to fetch the product.
4. For the duration of transportation from the factory to the Distributor's premises all
responsibility of the product shall lie with the forwarding agent.
8.2 HANDLING
1. The product must be handled with such care as is normal when handling agricultural or
forestry machinery without causing the product any damage.
2. No other products may be loaded on top of the machine transportation crate.
3. The product is delivered well-packed from the factory.
8.3 STORAGE
1. The chipper is to be stored in its normal working position and protected against sunlight
and rain.
2. Should the machine be left standing outdoors for any period of time without proper
protection, it should be inspected from time to time and any rainwater accumulated on
top of the machine drained away.
3. For long periods of storage always store the machine indoors under shelter.
8.4 SPECIFIC NOTES ON
TRANSPORTATION SAFETY
1. It is prohibited to lift the machine from any other points than those clearly marked for
lifting by decals.
2. Make certain that the crane or equivalent used for the lift has sufficient capacity and is
Safe enough for the job and that no risk of overturning or falling down accurs.
3. Use only approved ropes or chains for lifting.
4. The chipper must not be lifted up resting on the forks of a fork lift truck, only ropes or
chains are suitable for any lifting operations.
5. Always check the condition of lifting ropes or chains prior to any lifting attempt.
6. If during a lifting operation the machine is to be laid down resting on its side or lifted up to
rest on its wheels the lifting ropes or chains must be kept tight to prevent any accidental
Swaying of the machine in order to avoid dangerous situations.
7. If using a lifting crane, always check the lifting radius.
8. The chipper must be securely tied down to the platform for the duration of transportation.

9. TAKING A NEW MACHINE INTO USE
9.1 PREPARATIONS PRIOR TO OPERATING
A new machine must be brought into a proper operating condition by the operator prior to the
machine's first use. If the chipper is delivered with its discharge spout independently packed, the
attach the spout to the machine as follows: Place the spout on its mountings in such a manner
that the guide lug on the spout lines up with recess in the mounting adaptor. Secure the spout in
its place by means of the enclosed split clamp and its knurled nut. Turn the nut until it is tight.
When taking the chipper into use make sure that all the safety panels are in place, that no
foreign matter is left inside the feed orifice and that the disc rotates freely. Before connecting the
machine and its drive to the tractor check the instruction manual notes on the PTO shaft and
proceed accordingly. Only after observing these points may the chipper be coupled to the
tractor.
9.2 DISCARDING PACKAGING MATERIALS
The wooden and cardboard packaging materials may be disposed of by burning or taking
them to a dump site. The polyethylene bags and plastic cords should be disposed of either by
recycling them according to national regulations or by taking them to a dump site.
TRACTOR PTO
The starting of the chipper should be made smoothly on low rpm due to the large rotating masses
inside the chipper. During operation, the chipper cutting flange speed must be kept within the
range of 540-1000 r.p.m. The universal drive shaft has been discussed separatively in the
chapter titled "PTO SHAFT".
HYDRAULIC SYSTEM
The chipper models HJ 5 M do not require HFS use of tractor hydraulic system as the model has
no actual feeder mechanism.
The HJ 5G model requires, hydraulic oil from the tractors hydraulic system 1.3 - 4 gal./min
(5 - 15 L/min) and a single control valve, fitted with single pressure and return connectors
for its operation.
9.3 ATTACHMENT TO A TRACTOR
The chipper is designed for attachment to tractors
equipped with category 1 or 2 lower links (i.e. either with 22
or 28 mm attachment pins).
In the delivery condition the chipper's mounting links have
been raised into vertical positions. They must be lowered
down and secured in the position as shown in the
accompanying figure on the right. The length of the
mounting links can be adjusted by the set of alternative
attachment holes in the links.
The tractor lower links and the top link are attached to the
chipper mounting points in the normal manner and the
lower links secured in their centre position by means of their
stabiliser.
10

11
9.4 PTO SHAFT
TYPE OF PTO SHAFT
The universal drive shaft should have the capacity of trans-mitting power at a rate of 50 kW at a
nominal speed of 540 rpm and to sustain a torque of 900Nm. The shaft should be fitted with
an overload clutch. A suitable drive shaft is, for example, EG T50 051 CE 112 Rf2 overrunning, or
Walterscheid 2400 SD25-510 FK96.
PTO SHAFT LENGTH
The drive shaft must be of correct length for the application for the sake of operator safety, the
mechanical durability of the shaft itself and its operational characteristics. The splines of the
sliding tubes must overlap at least by 100 mm (4"). Too long a shaft will bottom causing the shaft
to get damaged. With too short a shaft the two halves may get separated from each other
when lifting the implement on the tractor hitch. This could lead even to grave consequences.
Too small an overlap also reduces the shaft's capacity to transmit the required power and thus
may lead to mechanical damage to the shaft itself.
SHORTENING A PTO SHAFT
1.The shortest operational length of the shaft is determined by liftig the machine on the
tractor hitch (see Fig.1).
2. A 25 mm (1") free play should be left on the shaft and marked on the shaft
circumference (see Fig.2).
3.Using a hacksaw, saw off equal lengths from inner and outer tubes and shields of both
shaft halves (see Fig.3).
4.Remove cutting burns with a file and make clean all tubes.
5.Grease the shaft tubes thoroughly before fitting the shaft in place.
kuva 3
kuva 1 kuva 2

10 ADJUSTMENTS
PLEASE READ THESE INSTRUCTIONS VERY CAREFULLY AS THE MOST IMPORTANT POINT IN THE
OPERATION OF THE CHIPPER IS THE CONDITION OF THE KNIVES AND THEIR CORRECT
ADJUSTMENT.
10.1 ADJUSTMENT OF KNIFE SETTINGS
The knife setting may be adjusted within the range of 5 to 18 mm. The smaller the setting, the
smaller the chips the chipper produces. On the other hand, the knife setting affects the intake
speed in the manner that a larger knife setting results in a faster and better intake of material.
To adjust, loosen the knife attaching screws (3 ea) and the locking screws (2 for each knife).
Open the bed knife attaching screws and pull out both bed knives towards the feed chute.
Move one cutting knife into a required position on the disc (measurement 'A'). Tighten down
both the attaching and locking screws of the knife in question. Move the bed knives
correspondingly to leave a free gap of 1 mm (measurement 'B') between the knife and the bed
knife. Tighten down the counter-blade attaching screws. Proceed to adjust the remaining 4
cutting knives bringing each one in turn to the adjusted bed knife and adjusting each knife to
leave the 1 mm gap ('B') between each knife and the bed knife. Finally tighten down all knife
and bed knife attaching screws to a tightness of 20 kpm (145 lbft). Rotate the disc by hand to
ensure that the cutting knives do not make contact with the bed knives and that the gap ('B')
between the knives and bed knives equal (1 mm) for each cutting knife. Finally, tighten down the
cutting knife locking screws against the rear edge of each knife to a 3 kpm (22 lbft) tightness.
A
NKNICUTTIFEG
IOE EDNFLW K ERB
EVERT CA ED KNIFILB
A=5 - 18mm
B=1mm (1/32"-1/16")
C= 30.5Å
B
CUTTING KNIFE
C
12

10.2 FEED RATE ADJUSTMENT
The rotational speed of the feed rollers in chipper models HJ 5 SLT and HJ 5 SL must be
synchronized with the cutting speed of the cutting knives. If the feed roller rpm is too high in
relation to the knife cutting speed, the roller tend to dig into the stems being fed in. If the feed
roller speed has been set too slow, the feed becomes jerky.
The adjustment is to be started with low feed roller rpm. At this stage, the cutting knives tend to
pull out the stem from between the feed rollers. The feed mechanism speed is then slowly
increased until it synchronizes with the cutting knife setting in use and the feed remains smooth.
ADJUSTMENT
The feed speed adjustment is carried out by first loosening the locknut 'A' and moving the
adjusting lever 'B' to the end of the adjustment range. A stem is the fed into the chipper for
chipping down and the potential variation between the speeds of the feed mechanism and the
cutting knife action is observed. If the feeding speed is too slow, increase the speed by moving
the adjustment lever towards the fast end of the range. Repeat the adjustment as necessary.
When the syncronization is correct, screw in the locking nut 'A' tightly.
11. USAGE
The HJ 5 chipper is primarily designed for handfeeding.
The material to be chipped should, when need arises, be first pre-treated so that all heavy tree
branches or off-shooting main roots etc. should be removed in order to adapt the stem into the
dimensions of the feeding orifice.
It is a recommended practice to arrange the material alongside the chipper is such a way that
there is little need to carry any of it over other than the minimum distances. In this way the working
efficiency remains as high as possible and additionally a solid flow of material will produce the
best quality chips.
HJ5 G
13

14
12 MAINTENANCE
READ THE SAFETY INSTRUCTIONS
CAREFULLY
12.1 SHARPENING THE CUTTING KNIVES
The cutting angle of factory-new cutting knives is 30.5°. This is he optimum angle which
should always be used when re-sharpening the knives. A smaller angle will result in chipping
in the knife edges, while a greater angle will reduce the knife edge's clearing angle causing
a reduction in the ability of the knives to draw in the material.
Note that the cutting knives must not be allowed to heat up during the sharpening process
as the knives will otherwise loose the hardness acquired by their heat-treatment. The knives
should therefore be sharpened solely by grinding. When grinding, care should also be taken
to sharpen all knives by equal amounts, so that the overall balance of the knife flange is
retained.
As a rule, there is normally no need to sharpen the bed knives. Their cutting edges may,
however, be rounded off if the intaken material includes substances that are harder than
wood (nails, sand etc.). A blunted bed knife can be re-sharpened with e.g. an electric
hand-grinding machine. In the main, the bed knives should remain maintenance-free.
DISC SAFETY LOCK
All JUNKKARI-chippers are fitted with a safety lock for
securing the cutting flange immobile while carrying out
any maintenance work on the cutting knives.
12.2 LUBRICATION
Following lubrication operations should be carried out at the intervals of the cumulative
operating hours given in the tables.
Disc shaft bearings (2 ea):
Fill in with lubricating grease 50 h
Feed mechanism bearing (1 ea) 50 h
CUTTING KNIFE
C

15
13. FAULT FINDING CHART
FAULT CAUSE REMEDY
The chipper does not draw Dull knives Sharpen and refit
in material Knife cutting as per instructions
angle faulty given in the manual
Knife fitted the
wrong way round
Uneven chip size Knife gap ('B') Adjust as per
too large instructions given
Single lengths in the manual
of wood turn side-
ways after passing
the feed rollers
The discharge spout gets Too low rpm Raise the rpm to
blocked within the speed range of
540-1000 rpm
Power requirement excess- Tractor hp too
ive on the tractor small
Knife setting Reduce the cutting
too large ('A') knife setting or
remove the oppositeblades
Ingoing material produces Feed rollers not See the notes on
excessive vibrations properly synchro- synchronization of
nized the feed rollers
13.1 DEVELOPMENT OF FAULTS
The normal wear taking place in the chipper proceeds in a safe fashion without producing any
risks of danger. In practice, the only wearing chipper parts are the cutting knives. Should a
situation occur where excessive bearing play is observed, the adjustment of such a condition
should be left to be remedied by a competent fitter.

14 TERMS OF WARRANTY
TERMS OF WARRANTY:
1.The manufacturer warrants the product for a period of 12 (twelve) months in agricultural
use and used in the purpose to which the product is intended.
2.In communal, industrial, contract work or equivalent the warranty period is 6 (six)
months.
3.The warranty period commences on the date an authorized Distributor/Dealer delivers a
new machine to the customer.
4.The warranty covers any defects in workmanship or in raw materials. The faulty parts
shall be renewed or replaced by reconditioned parts either at the factory or at the
premises of an authorized repair shop in contractual relation with the factory.
In the case of subcontracted components, the warranty will be covered by the terms given
by the suppliers of such products.
5.A warranty repair does not prolong the length of the warranty period.
6.The warranty does not apply in cases, where the damage has been caused by improper
use of the product against the instructions given in this operator's manual or arising from
negligent maintenance, overloading or normal wear. Further the warranty does not apply
to any subsequental damages caused by the original failure nor cover any costs occurred
by downtime, travelling expenses, freights, daily allowances, overtime or any
modifications, which alter the original design in any way.
In warranty-related cases please contact your Distributor/Dealer for preparing a warranty
claim on the failure. Before taking any corrective action to repair the fault, the manufacturer
must be contacted to assess the repair method and the costs occurring thereof.
The Warranty is only applicable if the properly warranty certificate is returned to the
manufacturer within 14 (fourteen) days from the date of delivery of the product.
15. SCOPE (EXTENT) OF RESPONSIBILITY
The manufacturer shall not be responsible for any consequences arising from the use of the
product (Patu Chipper) in a manner contrary to law, safety regulations or instructions out-laid in
this manual. As situations may occur during the use of the product not foreseen in instructions or
regulations, the operators are advised to act according to general safety regulations and
directives on (farm) machinery.
The manufacturer shall not be liable for any damages due to the use of components produced
by other manufacturers.
The manufacturer shall not be responsible for any damages which may incur other machinery or
equipment from the use of the chipper.
16