Farmi Forest VALBY CH140 L Guide

CH140 L
OPERATION, MAINTENANCE AND SPARE PARTS
B ---USA--- 110504 --- ER03513990www.farmiforest.fi
Farmi Forest Corporation
Ahmolantie 6
FIN---74510 PELTOSALMI
FINLAND
Tel. [phone]
Fax. [phone]
It is very important to read this instruction
handbook thoroughly before using the machine!
CHIPPER CH140 L
From machine: 334 5011

CH140 L
www.farmiforest.fi
FARMI Forest
Ahmolantie 6
FIN---74510 PELTOSALMI
FINLAND
Tel. [phone]
Fax. [phone]
1.TO THE OWNER---OPERATOR
Thank you for purchasing a Farmi Forest Corporation product.
Before we begin this manual, the people at Normet Corporation want you, the
owner--operator , to know this piece of equipment can be very dangerous if safety
procedures and warnings are ignored. Read this manual carefully page by page until
you understand it completely. Failure to do so will reslult in personal injury and / or
equipment damage.
All personnel including operators, maintenance crew, etc. should read this manual
before start up.
This manual should be considered a permanent part of your machine and should
remain with the machine when you sell it.
IMPORTER:
NORTHEAST IMPLEMENT Co.
P.O. Box 402
Spencer, N.Y. 14883
U.S.A
Tel. +1---607---589 6160
Fax +1---607---589 4026
E --- m a i l v a l b y @ b a k a . c o m

CH140 L
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2.TERMS AND SYMBOLS USED IN INSTRUCTIONS
This message denotes the most serious specific potential hazard. The sign
will be displayed on the machine in areas of potential hazard.
DANGER!
This message denotes a specific potential hazard. The sign will be displayed
on the machine in areas of potential hazard. The sign will have the color com-
bination of yellow and black.
WARNING!
This message is used for general reminders of good safety practices or to
direct attention to unsafe practices. The message will appear in your opera-
tor’s manual and/or the sign will appear on the machine with the color com-
bination of yellow and black.
CAUTION!
Safety is a combination o
f
operator common sense and alertness at all
times when the machine is being operated or serviced.
THINK
SAFETY
Messages labeled ”Important” will appear in your operator’s manual to pro-
vide specific instructions for performing adjustments, services, etc. If these
instruc---tions are not followed it could result in damage to the machine.
IMPORTANT!

CH140 L
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3.SAFETY
3.1.GENERAL SAFETY
Do not operate this machine until you have read and understood the manual page
by page.
The owner of this machine is responsible for instructing all operators and support
personnel in the operation and safety precautions of this chipper. Proper training
prior to operating the chipper is obligatory.
IMPORTANT!
DInform everyone who works with the chipper about the risks and how they can avoid accidents.
DBefore the chipper is running, ensure that the working place is clear of any bystander within a
minimum risk zone of 100 ft. (30 meter).
DDo not let children or untrained persons operate the chipper.
DAlways have the chipper mounted on the 3---point hitch of the tractor. Otherwise the chipper will tip
over.
DThere is a serious crushing hazard between tractor and chipper. Do not go between the tractor and
the chipper in any case, for example when you are mounting the chipper to the tractor.
DCheck that the covers of the universal shaft are in their place and the ransmission chains are fastened.
DSafety goggles, earmuffs and a hard hat are obligatory when chipping. Use respirator mask, if
necessary.
DDo not wear loose clothing, loose sleeves, scarves or long uncovered hair around moving parts of
machinery. Also avoid gloves of poor condition or with loose fitting, because they might get caught in
the branches.
DStay alert! Do not operate the chipper when fatigued, or under the influence of alcohol or drugs.
DIMPORTANT! Never leave the chipper running and unattended.
DIMPORTANT! Failure to obey the warnings on the chipper or in the operator’s manual will result in
personal injury and / or death and / or equipment damage.
DCheck the material before you feed it. The material must be free from nails, stones and all other
materials that are not wood, paper or plastic. IMPORTANT! Feeding wire and barbed wire into the
chipper is very dangerous as it might pull in the operator.
DMake sure that no one is in the path of flying chips. Point the discharge pipe away from windows,
doorways and other areas where people or animals may be.
DKeep the work area clean so there is nothing to trip over.
DDisengage the PTO, cut the engine and remove the keys before any maintenance.
DUse only original parts replacements. IMPORTANT! Do not make any modifications.
DCheck all moving parts. They should be fastened in place, in good working condition and all shields
and guards must be in place.
DPoint the discharge downwind to prevent dust or chips from blowing onto the operator.
DIf a wood jams inside the chipper, cut the engine and wait for all movements to stop before reaching
inside the feed chute.
DDo not use the chipper indoors when you use it with a the tractor or with the separate hydraulic motor.
It’s possible to use the chipper indoors with the electric motor use.
DYou must be very careful when working indoors. Protect yourself against possible hazards like
exhaust gas by sufficient ventilation, for dust that can catch fire by cleaning your environment
regularly.
DAlways use the lock bolt before and during maintenance on the machine.
DPlace the PTO shaft in the holding device when disconnected from tractor.
Risk of cutting injury or hits by flying debris.
Do not reach into the feed chute for any reason.
Failure to follow these instructions could result in serious injury or death.
DANGER!

CH140 L
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3.2.SAFETY INSTRUCTIONS FOR THE HYDRAULIC FEEDER AND FEED CHUTE
DIMPORTANT! Always also read the general safety instructions.
DIMPORTANT! Do not ever put any part of your body inside the feed chute!
DPrior to operating get familiar with the function and controls of the machine. All functions must be in
blameless condition.
DTest the stop function.
DBefore starting up, check that there is no debris or foreign objects in the feed chute.
DDo not work in front of the feed chute opening! Stand on the left side of the chute when feeding, as the
feed roller might jerk the wood up or to the right.
DWhen checking malfunction, all controls must be in ”off” or in ”stop” position.
DLet go of the wood when the feed roller or the knives get hold of it. To feed short pieces, push them in
with longer ones.
3.3.SAFETY INSTRUCTIONS FOR THE HYDRAULIC UNIT
DBefore performing lubrication work on any equipment, consult the manufacturer’s instruction manual
and follow the recommended procedures.
DBefore lubricating the machine, shut down the engine and stop the machine.
DPressurized oil can be hazardous. Pressurized oil jet can penetrate skin and cause serious injuries or
death.
DOccasional skin exposure with oil is not dangerous. If though you can not prevent long---time
exposure use protective gloves and other protective clothing.
DKeep flammable material away from heat, sparks and open fire.
DHot oil and oil spray can be hazardous. Small amounts swallowed or inhaled do not usually cause
toxication. Old oil is more dangerous than new.
DIf oil has got into eyes flush them with cool water after which go to doctor. Use safety goggles.
DAvoid mixing lubricants of different grade and quality. Use only recommended oils or oils with
corresponding characters.
3.4.SAFETY INSTRUCTIONS FOR THE SEPARATE HYDRAULIC MOTOR USE
DCheck the moving parts. They should be fastened in place, in good working condition and all shields
and guards must be in place.
DInform everyone who works with the chipper about the risks and how they can avoid accidents.
DDo not let children or incapable persons operate the chipper.Do not wear loose clothing, loose
sleeves, neckties or long uncovered hair around moving parts of machinery.
DDisengage the PTO and turn the tractor off before you service the chipper.
DUse only original parts replacements. Do not make any modifications.
DFailure to obey the warnings printed on the chipper or in the operator’s manual might result in a
serious injury or death.
DWhen checking the malfunction, all devices must be in “off” position.
DPlace the PTO shaft in the holding device when disconnected from tractor.
3.5.PARKING THE CHIPPER
DEnsure that the chipper is placed on a hard level and horizontal surface.
DEnsure that there is no material in the chipper or in the feed chute except for the remainder branch.
DClean the working area.

CH140 L
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1.TO THE OWNER---OPERATOR 3.............................................
2.TERMS AND SYMBOLS USED IN INSTRUCTIONS 4...........................
3.SAFETY 5..................................................................
3.1.GENERAL SAFETY 5.....................................................................
3.2.SAFETY INSTRUCTIONS FOR THE HYDRAULIC FEEDER AND FEED CHUTE 6.................
3.3.SAFETY INSTRUCTIONS FOR THE HYDRAULIC UNIT 6......................................
3.4.SAFETY INSTRUCTIONS FOR THE SEPARATE HYDRAULIC MOTOR USE 6....................
3.5.PARKING THE CHIPPER 6................................................................
4.CHIPPER PRESENTATION 9................................................
4.1.FIELD OF APPLICATION 9................................................................
4.2.CHIPPER ACCESSORIES 9...............................................................
4.3.MAIN COMPONENTS 9...................................................................
4.4.DIRECTIVES AND STANDARDS APPLIED 9.................................................
4.4.1.UNIFIED STANDARDS 9...............................................................
4.4.2.NATIONAL STANDARDS 9.............................................................
5.TECHNICAL DATA 10.......................................................
5.1.DIMENSIONS 10........................................................................
5.2.PLATES AND STICKERS FOR THE CHIPPER 11............................................
6.TRAFFICONPUBLICROADS 14.............................................
6.1.TRANSPORT POSITION 14...............................................................
7.PREPARATIONS FOR START UP 14..........................................
7.1.LIFTING 14.............................................................................
7.2.MOUNTING THE CHIPPER UNIT 14.......................................................
7.3.MOUNTING THE EXTENSION PLATE 15...................................................
7.4.PTO---SHAFT 15........................................................................
7.4.1.CUTTING THE PTO SHAFT TO THE CORRECT LENGHT 15..............................
8.OPERATING THE CHIPPER 16..............................................
8.1.SAFETY WHEN OPERATING 16..........................................................
8.2.PRIOR TO OPERATING 16...............................................................
8.3.STARTING THE CHIPPER 16.............................................................
8.4.CHIPPING 16...........................................................................
8.5.REDUCING THE POWER REQUIRED. 17..................................................
8.6.PROCEDURES AFTER OPERATING 17....................................................
8.6.1.CLEARING THE CHIPPER 17.........................................................
8.6.2.TURNING THE CHIPPER OFF IN TRACTOR USE 17.....................................
8.6.3.TURNING THE CHIPPER OFF IN HYDRAULIC MOTOR USE 17............................

CH140 L
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9.SAFETY MAINTENANCE AND SERVICE 18...................................
9.1.BEFORE LUBRICATION AND MAINTENANCE 19...........................................
9.2.LUBRICATION 19.......................................................................
9.2.1.LUBRICATING THE BEARINGS 19.....................................................
9.2.2.LUBRICATING THE PTO SHAFT 19....................................................
9.3.BEARINGS 20........................................................................
9.3.1.REPLACING THE BEARINGS 20.......................................................
9.3.2.ADJUSTING THE BEARING CLEARANCE 21............................................
9.4.CHANGING THE SPLINED AXLE 22.......................................................
9.5.KNIVES AND ANVILS 23.................................................................
9.5.1.SHARPENING THE KNIVES 23........................................................
9.5.2.ADJUSTING THE CLEARANCE BETWEEN THE KNIVES AND THE HORIZONTAL ANVIL 24...
9.5.3.SHARPENING THE ANVIL 25.........................................................
9.6.TIGHTENING THE BOLTS 25.............................................................
9.6.1.TORQUES AND CLEARANCES 25.....................................................
10.STORING AND DISCARDING 26............................................
10.1.STORING THE CHIPPER 26.............................................................
10.2.DISCARDING THE CHIPPER 26.........................................................
11.CRIME PREVENTION 27...................................................
SPARE PARTS
DISCHARGE PIPE 27.......................................................................
CH140 L CHIPPER 28.......................................................................
BEARING, FEEDER SIDE 32.................................................................
BEARING, SPLINED AXLE SIDE 33...........................................................
F150 MECHANICAL FEED CHUTE 34.........................................................
WHENORDERINGSPAREPARTS,PLEASEINDICATEMACHINESTYPEFROMTHEMACHINEPLATE,SPARE---PARTS
ORDER NUMBER, DESCRIPTION AND QUANTITY REQUIRED.
EXAMPLE: CH140 L, 43510220, Knife, 2 pcs.

CH140 L
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4.CHIPPER PRESENTATION
4.1.FIELD OF APPLICATION
CH140 is a multi purpose chipper for processing
small---sized wood up to Ø 6,3” (160 mm). It produces
uniform chips to be used as fuel. CH140 is a mobile,
light---weight machine for handling all kinds of wood waste
from parks, roadsides and other environmental cleaning.
The chipper can be fitted with a separate hydraulic power
feed.
4.2.CHIPPER ACCESSORIES
DSingle or dual motor hydraulic feed, manual or gravity
hopper
DIndependent hydraulic unit HD11
DSeparate hydraulic motor drive HD 100
DSkid Steer adaptation
DTransmission T160
4.3.MAIN COMPONENTS
1. UPPER CHAMBER
2. LOWER CHAMBER
3. DISC
4. KNIVES
5. VERTICAL ANVIL
6. HORIZONTAL ANVIL
7. TWIG BLADE
8. DISCHARGE CHUTE
9. LID
10.HOLDING DEVICE FOR THE PTO SHAFT
13
2
5
7
8
6
4
910
Fig.1.Main parts.
4.4.DIRECTIVES AND STANDARDS APPLIED
4.4.1.UNIFIED STANDARDS
DEN292--2
DEN294
DEN60204--1
4.4.2.NATIONAL STANDARDS
DPrEN13252
DprEN1553--1

CH140 L
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5.TECHNICAL DATA
Output 5 --- 2 0 m 3/h (177---706 ft3/h)
Mean chip length 13 mm (1/2”)
Max wood diameter 160 mm (41/2”)
Power demand 1 0 --- 4 0 k W ( 1 5 --- 4 0 H . P. )
Tractor PTO speed 540---1000 RPM
Number of knives 2pcs.
Power source Tractororhydraulicmotor
Mounting 3---point hitch CAT I
Rotor diameter ∅670 mm (26 1/3”)
Rotor weight 100 kg (220 lbs)
Rotor’s rotation speed 900---1700 RPM
Bearings Spherical roller bearings
Discharge chute 360°adjustable
Discharge chute height 86” (1,2 m)
Opening of upper chamber Single hinge
Chipper weight (no feeder) 625 lbs (285 kg)
Oil demand, P.T.O. speed
--- c h i p 1 3 m m ( 1/2”), 540 rpm
3 --- 1 0 g a l / m i n
Type of feed chute Manual chute or hydraulic feed
Sound pressure level
Sound power level
CEN / TC144 WG8N16
102 dB (A)
120 dB (A)
5.1.DIMENSIONS
Fig.2.Dimensions of CH140.

CH140 L
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5.2.PLATES AND STICKERS FOR THE CHIPPER
IMPORTANT! Do not remove any plate or sticker placed by the
manufacturer on the chipper or the accessories.
Replace missing ones immediately. You can order
them as a spare parts.
1
2
3
4
5
6
11
7
9
10
8

CH140 L
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3.
4. 5.
3 pc 40142080
1 pc 41011750
1 pc 41014140
1.
1 pc 30140602
2.
1 pc 41014310
6.
1 pc 41014170
7.
1 pc 40141160
1 pc 41015750
8.

CH140 L
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5 pc 41014270
1 pc 30141147
2 pc 41014110
10.
9. 11.
43513680 Plates and stickers for chipper CH 140
Part Order no. Description Qty.
1. 30140602 VALBY---sticker 1... ..... ....................................................
2. 41014310 Safety precautions 1... ..... .................................................
3. 41011750 Machine plate 1... ..... .....................................................
4. 40142080 Safety goggles, earmuff and a hard hat are oblicatory when chipping 3... ..... ....
5. 41014140 Do not operate this machine until the owner’s manual has been... .....
completely read and understood 1....................................
6. 41014120 Safety precautions before maintaining the chipper 1... ..... .....................
7. 40141160 Rotation speed and rotation direction of the PTO shaft 1... ..... .................
8. 41015750 Mounting the extension plate 1... ..... ........................................
9. 41014270 Lifting point 1... ..... .......................................................
10. 41014110 Beware of cutting tools 2.. ..... .............................................
11. 30141147 Sharpening the knives 1.. ..... ..............................................

CH140 L
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6.TRAFFICONPUBLICROADS
IMPORTANT! Prior to every procedure always
recall the general safety
instructions given in chapter 3.
Follow these special instructions to avoid risks
of accidents. Otherwise the manufacturer or
retailer will not assume any liability for
damage.
You shall have full control of the unit in every
situationwhendriving.
Bumpy driving might damage the chipper / the
feeding device.
Always follow the regulations established by
the law.
6.1.TRANSPORT POSITION
1. Open the pawl lever of the feed chute and turn the
chute aside. Disconnect one end of the control lever
from the valve and lock the chute into transport
position.
2. Turn the discharge chute into transport position.
3. Before driving off, ensure the machine unit’s
appropriate stability and check that the chipper is
firmly connected to the tractor and all fasteners are in
place.
IMPORTANT! Make sure that the rear lights of the
tractor are visible. Use a separate
light panel, if needed.
7.PREPARATIONS FOR START UP
Do not attempt to operate this
chipper without proper training.
Read and understand the owner’s
manual before operating the
machine.
WARNING!
Failure to heed the warnings printed on the
chipperorintheoperatorsmanualmightresult
in serious injury or death!
7.1.LIFTING
IMPORTANT! Prior to every procedure always
recall the general safety
instructions given in chapter 3.
Make sure that nobody will enter
the lifting zone.
DANGER!
A
lways check before lifting that the
lifting equipment is in order and
use the marked lifting points,
whenever possible. Always use
proper lifting equipment and check
for its sufficient lifting capacity.
CAUTION!
Know the weight of the load and check that the
performance of the lifting equipment will not
be exceeded.
Check the hoisting cables and chains
regularly. Mark any discarded cable and
remove it immediately.
Weight , 530 lbs
240 kg
Fig.3.CH170 lifting point.
7.2.MOUNTING THE CHIPPER UNIT
1. Mount the 3---point hitch lift bar to the chipper frame.
2. Tighten the nuts with a 1 3/16” or 30 mm wrench to 190
foot---punds (260 Nm).
3. Mount the feeding device to the chipper with a hinge
pin and, from the other side, with two M12x40 bolts
and M12 nuts. See fig. 4. (If you use a hydraulic feeder,
refer to separate manual for instructions on mounting
and connecting the hydraulics.)
4. Connect the discharge chute to the chipper with three
M10 bolts and nuts. Adjust the lid control with the rod.
5. A Power Take---Off shaft (PTO shaft) transfers the
power to the chipper. The chipper has a 1 3/8”
diameter 6 spline PTO hookup.
6. Check for the correct length of the PTO shaft. (Refer to
7.4.)
Fig.4.
DTurn off the engine.
DLower the chipper on its legs on a hard, level surface.
DTurn the chipper’s axle by hand to ensure that the disk
can turn freely and that there are no foreign objects in
the chipper.

CH140 L
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DLook inside feedchute to ensure that it is empty.
DMake sure that all shields are in place and intact.
Removal of the shields is prohibited!
DDirect the discharge chute in desired position.
7.3.MOUNTING THE EXTENSION PLATE
DIf better stability is needed, use the extension plate.
Look also spare parts.
M12
M12
M12x30
Fig.5.Mounting the extension plate.
7.4.PTO---SHAFT
IMPORTANT! IfthetractorhasaPTO---brake(for
example Ford), you have to use an
overrunning clutch. Shaft
recommendations:
M4SLC
7.4.1.CUTTING THE PTO SHAFT TO THE
CORRECT LENGHT
If the PTO shaft is too long it might
bind when the three point hitch is
lifted up. Damage might be caused
to the bearings of the chipper or to
the PTO of the tractor. If the PTO
shaft is too long it must be cut. Both
PTO halves must be shortened by
equal amounts.
CAUTION!
1. Mount the chipper on the three---point hitch of the
tractor.
2. Cut the engine and remove the keys. Lower the
chipper on a firm and level surface.
3. Check that the splined shafts of the tractor and chipper
are on the same level.
4. Connect one shaft half to the chipper PTO and the
other half to the tractor PTO. Put the PTO halves side
by side so that one shaft end is 1” from the PTO---end
of the chipper. Mark the length required. The tubes
must be so short that they cannot reach the bottom in
any chipper position. Cut the plastic tube. Refer to fig.
6.---7.
Fig.6.
Fig.7.
5. Cutaprofiletubepieceofsimilarlengthastheplastic
tube piece. Shorten the other PTO shaft similarly.
Finish by filing the sharp edges. See fig. 8.--- 9.
Fig.8.
Fig.9.

CH140 L
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8.OPERATING THE CHIPPER
8.1.SAFETY WHEN OPERATING
Prior to any procedure also
recall the general safety
instructions in chapter 3.
IMPORTANT!
Inform everyone who works with the
chipper about the risks and how
they can avoid accidents.
CAUTION!
Never leave the chipper running
and unattended.
Do not ever stand between the
tractor and the chipper.
DANGER!
Before the chipper is running, ensure that the
working place is clear of any bystander within
a minimum risk zone of 50 ft. (15 meter).
Do not let children or untrained persons
operate the chipper.
Do not use the chipper disconnected from the
power source.
When using a tractor, always have the
chipper mounted on the 3---point hitch of the
tractor. Otherwise the chipper will tip over.
Check that the covers of the PTO shaft are in
their place and the transmission chains are
fastened.
Safety goggles, earmuffs and a hard hat are
obligatory when chipping. Use respirator
mask, if necessary.
Do not wear loose clothing, loose sleeves,
scarves or long uncovered hair around
moving parts of machinery. Also avoid gloves
of poor condition or with loose fitting,
because they might get caught in the
branches.
Stay alert! Do not operate the chipper when
fatigued or under the influence of alcohol /
drugs.
8.2.PRIOR TO OPERATING
1. Disengage the PTO, cut the engine and remove the
keys.
2. Lower the chipper on its legs on a hard, even ground
as shown in picture below, so that it will not tip over.
OK!
Fig.10.Choose a level ground.
3. Checkforthefreerotationofthediskbyturningthe
chipper axle by hand. Also check for any foreign object
in the chipper and the feed chute.
4. Make sure that all covers are in place and intact. Do
not ever remove any cover!
5. Direct the discharge tube into desired position.
The PTO shaft of a new chipper
needs lubricating prior to use!
IMPORTANT!
When using a new chipper, always
check the tightness of bolts and
fasteners after one operating hour.
IMPORTANT!
8.3.STARTING THE CHIPPER
DIMPORTANT! Whenever engaging the PTO clutch on
your tractor, you are turning a flywheel with a load of
300--600 lbs. Engage the PTO slowly allowing the
flywheel to start to rotate. Once you have the chipper
running, you may completely engage the PTO and then
bring up the rpm’s to operating speed (540 -- 1000 rpm).
8.4.CHIPPING
Prior to any procedure also
recall the general safety
instructions in chapter 3.
IMPORTANT!
Beware of rotating knives. Risk of
cutting injury.
Feeding wire and barbed wire into
the chipper might drag in the
operator.
Do not reach inside the feed chute
until all movements have stopped!
DANGER!
Always keep proper fire fighting
equipment on hand when chipping.
Keep an eye on the outside
temperature of the chipper to
prevent overheating of the knives.
Stop chipping and let the chipper
cool down.
CAUTION!
Good maintenance and a tidy working place is
of utmost importance for preventing fire.
Check for hot bearings.
Pour water down the feed chute, if the chipper
starts smoking.
Safety goggles, earmuffs and a hard hat are
obligatory when chipping. Use respirator
mask, if necessary.
Do not wear loose clothing, loose sleeves,
scarves or long uncovered hair around moving
parts of machinery. Also avoid gloves of poor
condition or with loose fitting, because they
might get caught in the branches.

CH140 L
17
If a wood jams inside the chipper, cut the
engine, remove the keys and wait for all
movements to stop before reaching inside the
feed chute.
Look out for flying debris!
Before feeding, make sure that the material is
free from stones, nails and all other materials
that are not wood, paper or plastic. Also avoid
chipping wood that are frozen solid, as they will
not self---feed well.
Do not stand in front of the feed chute when
feeding. The feed roller might jerk the wood up
or to the right.
DFeed the wood standing on the left side of the chute.
DWhen chipping wood, push the wood trunk inside the
feed chute until the knives or the feed roller touches the
wood. The chipper is self--feeding, so let go of the wood
as soon as the knives or the feed roller touches it.
DPoint the discharge downwind to prevent dust or chips
from blowing onto the operator. Point the discharge
pipe away from windows, doorways and other areas
where people or animals may be.
DKeep the work area clean so there is nothing to trip over.
DIf you are using a hydraulic feeder, refer to separate
manual.
Do not use the chipper in
temperatures below ---5 ˚F ( --- 2 0 ˚C).
Risk of knife damage!
IMPORTANT!
8.5.REDUCING THE POWER REQUIRED.
When using a small tractor to power the CH 140 chipper,
select a 540 rpm PTO speed. Run the tractor at full engine
speed and the PTO will turn about 600---650 rpm.
Should the tractor stall when chipping, reduce the power
demand by making the chipper cut with only one knife:
Remove one knife and attach it to the other side of the disk.
Now you will be able to chip material twice as thick.
IMPORTANT! Feed the material at half speed.
1. Disengage the PTO, cut the engine and remove the
keys.
2. Open the upper housing bolts (3/4” or 19mm wrench)
and turn the upper housing aside.
3. Lock the disk with the lock bolt, fig. 20.
4. Turn the feed chute to the side.
5. Use protective gloves when handling the knives.
6. First remove the lock nut and then the knife using a 17
mm (11/16”) socket wrench. The disk bolts are
threaded through the disk so the bolts must be turned
out.
7. Before fastening the knife on the other side, prepare
the bolts as follows: Place a spring washer on the bolt.
Screw on the lock nut and tighten it to 45 Nm (38
foot---pounds).
8. Place another spring washer on the bolt and thread
the bolt through the knife into the disk as shown in
figure 11. Tighten the bolts to 45 Nm (38
foot---pounds). IMPORTANT! To retain the balance
always use all four fastening bolts of the knife.
Interchange the cutting and
counterweight knives at times to
ensure that they are equally much
worn and sharpened, and the disk
stays in balance.
IMPORTANT!
SPRING WASHERS
M10 X 40
NUT M10
Fig.11.Remove the knife and attach it to the other side of
the disk. The dotted line shows the knife in its
normal cutting position.
8.6.PROCEDURES AFTER OPERATING
8.6.1.CLEARING THE CHIPPER
DPrior to shutting down the chipper, always run a large
branch of Ø 80 to100 mm (3 to 4”) into the knives and let
the chipper cut off a few inches. By then reversing the
feed direction the knives will be cleared.
To eliminate the possibility of
jamming the chipper when starting
up again, leave a branch in the
chipper as a reminder of having
cleared the knives.
IMPORTANT!
8.6.2.TURNING THE CHIPPER OFF IN
TRACTOR USE
DLet the tractor rpm idle before turning the PTO to
OFF--position. This is especially important on tractors
with PTO brakes, such as Ford, where you, after idling
the tractor, should slowly move the PTO control lever to
the OFF--position.
8.6.3.TURNING THE CHIPPER OFF IN
HYDRAULIC MOTOR USE
After turning the chipper off wait for
all movements to stop; the disk will
continue to rotate by flywheel
momentum after the PTO has been
disconnected.
DANGER!
Never disconnect the hydraulics
from high rpm’s. This will cause risk
of cavitation and might damage the
hydraulic motor. Check that no
sounds of cavitation emit from the
hydraulic motor.
CAUTION!
To prevent cavitation it is very
important to slowly reduce the base
machine rpm’s to idle before
disconnecting the hydraulics.
IMPORTANT!

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9.SAFETY MAINTENANCE AND SERVICE
Prior to any procedure also recall the general safety instructions in
chapter 3.
Use only original spare parts.
Observe common safety practice.
IMPORTANT!
Before performing lubrication work on any equipment, consult the
manufacturer’s instruction manual and follow the recommended
procedures.
Ensure that the chipper is on a firm and level surface.
!WARNING!
!WARNING! Before lubricating the machine, shut down the engine and stop the
machine.
When handling the knives, use protective gloves.
Do not ever stand between the tractor and the chipper.Modifications of
chipper are prohibited.
!DANGER! Pressurized oil can be hazardous. Pressurized oil jet can penetrate
skin and cause serious injuries or death.
!CAUTION! Occasional skin exposure with oil is not dangerous. If though you can
not prevent long---time exposure use protective gloves and other
protective clothing.
!WARNING! Keep flammable material away from heat, sparks and open fire.

CH140 L
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9.1.BEFORE LUBRICATION AND
MAINTENANCE
A
lways disengage the PTO and
turn the tractor OFF before you
serviceorrepairthechipper.
WARNING!
Wait for all movement to stop before reaching
inside the feed chute.
Remove the keys so that the tractor can not be
started up accidentally.
Lock the disk for service or repair
Park the chipper on hard and level ground, so
it will not fall down.
9.2.LUBRICATION
Hot oil and oil spray is hazardous.
Avoid skin contact with oil and
grease. Always consult a physician
in cases of getting oil in the eyes or
possible skin changes.
WARNING!
Avoid mixing lubricants of different grade and
quality. Use only recommended oils or oils with
corresponding characters.
Follow the instructions and regulations of the
manufacturers and the authorities.
Always wear proper clothing, skin protecting
crèmes or appropriate gloves.
Never use lubricating oils or greases to clean
your hand with. Metal particles and additives in
the lubricants might damage the skin.
9.2.1.LUBRICATING THE BEARINGS
The bearings are factory---greased with Shell Alvania
Grease R 3. Use a similar lubricant, such as Kendall
L427. IMPORTANT! Too much grease will cause heat,
which reduces lubrication.
DLubricate the bearings every 200 working hours or
once a year.
1.Disengage the PTO, cut the engine and remove the
keys.
2.Open the upper housing bolt and remove / turn aside
the upper housing.
3.Lock the disk with the lock bolt, fig. 20.
4.Remove / turn aside the feed chute.
5.Remove the top of the bearing housing. Remove as
much old grease as you can and replace it with new, but
do not fill the housing completely. Refer to Replacing the
bearing as advised in chapter 9.3.1.
6.Replace the top of the bearing housing. Tighten to 38
foot---pounds (50 Nm).
9.2.2.LUBRICATING THE PTO SHAFT
DLubricate the PTO shaft prior to operating and with
intervals shown in fig. 12.
In cold weather the
plastic tubes must be
greased to prevent
them from freezing
solid.
Swing joints sideways for greasing
8h 8h
20h
Apply grease to inside of
the profile tube
h= working hours
Fig.12.The lubrication spots and intervals of the P.T.O
shaft.

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9.3. BEARINGS
9.3.1.REPLACING THE BEARINGS
7. Remove the fastening bolts M10 (7) and the upper
bearing housings (6).
8. Mark the location of the tightening cone on the
shaft.
9. Lift the disk.
10.Bend the claw of the securing ring (3) out from the
notch on the axle nut and open the axle nut.
11.Remove the axle nut, securing ring, spacer ring (4),
bearing (5), spacer ring (9), and tightening cone
(10).
12.Install the tightening cone, spacer ring (9), and
bearing on the disk shaft. Note the thickness of the
spacer ring (9) --- see Fig. 13.
13.Install the securing ring with the claws facing
outwards and the inside claw in the groove of the
tightening cone, and install the axle nut.
14.The inner ring of the bearing should press tightly
against the tightening cone.
15.Tighten the axle nut with a hook spanner until the
bearing is tightly on the cone, or to 80 Nm (58 15/16
lbf). However, the outer ring of the bearing should
turn freely. Note the location of the tightening cone
on the shaft.
16.Bend one claw of the securing ring (3) into a notch
ontheaxlenut.
17.Install the other half of the dust cover and end plate
on the bearing housing. Install the spacer ring (4) on
the shaft.
18.Lower the disk to the bearing housing.
19.Attach the other half of the dust cover to the upper
bearing housing; install the upper bearing housing
fastening bolts and tighten to 50 Nm (36 7/8lbf)
20.Lubricate the bearing housing. An excessive amount
of grease causes overheating and impairs lubrication.
110
98
5
4
11
6
7
h=12.7
32
h=5.4
Fig.13.Bearing, feeder side.
11
8
53
11
10
6
7
2
Fig.14.Bearing, splined shaft side.
DThe bearings at the feeder side and splined shaft
side are different from each other. The bearing at the
splined shaft side, Fig. 14., does not have spacer
rings (4 and 9) and an end plate (1). The bearing at
the splined shaft side has dust covers on both sides
(11).