Hansa C27HS User guide

HANSA NEW ZEALAND
[phone] [e-mail]
www.hansaproducts.co.nz
HANSA AUSTRALIA
1800 426 722 [e-mail]
www.hansaproducts.com.au
Hansa C27 HS
Operation, maintenance and safety manual
All operators must fully read and understand this operator’s manual before using the chipper.

Hansa C27 HS O&M Manual –OM-012 Revision C 19/12/2018
© Hansa Chippers 2018
TABLE OF CONTENTS
WHAT CAN MY HANSA CHIPPER PROCESS?..................................................................................................................................1
INTENDED USES OF THE CHIPPER ...............................................................................................................................................................1
RECEIVING YOUR HANSA BRUSH CHIPPER....................................................................................................................................1
CHIPPER COMPONENTS........................................................................................................................................................................... 1
SAFETY .........................................................................................................................................................................................2
OPERATOR COMPETENCY........................................................................................................................... ERROR!BOOKMARK NOT DEFINED.
IDENTIFYING HAZARDS AND RISKS.............................................................................................................................................................. 2
TOWING SAFETY ....................................................................................................................................................................................3
OPERATION..................................................................................................................................................................................3
OUTLET CHUTE ADJUSTMENT.................................................................................................................................................................... 3
FEED ROLLER CONTROL ...........................................................................................................................................................................4
AUTOMATIC FEED CONTROLLER (AFC) ......................................................................................................................................................4
HOUR METER /TACHOMETER...................................................................................................................................................................4
CHECKLIST BEFORE OPERATION ................................................................................................................................................................. 4
SAFE SETUP PROCEDURES ........................................................................................................................................................................5
SAFE OPERATING PROCEDURES ................................................................................................................................................................. 5
STARTING PROCEDURE ............................................................................................................................................................................7
SHUTDOWN PROCEDURE .........................................................................................................................................................................8
TROUBLESHOOTING.....................................................................................................................................................................9
MAINTENANCE & SERVICE ......................................................................................................................................................... 10
KNIFE RE-SHARPENING AND KNIFE REPLACEMENT .......................................................................................................................................10
ANVIL ADJUSTMENT ............................................................................................................................................................................. 12
BELT TENSION .....................................................................................................................................................................................13
BELT REPLACEMENT.............................................................................................................................................................................. 14
HYDRAULIC PUMP BELT ADJUSTMENT....................................................................................................................................................... 15
GREASING BEARINGS &PIVOT POINTS...................................................................................................................................................... 15
HYDRAULIC SYSTEM.............................................................................................................................................................................. 16
ENGINE SERVICING ...............................................................................................................................................................................16
OTHER SERVICING ................................................................................................................................................................................16
ROTOR BEARING REPLACEMENT ..............................................................................................................................................................16
TYRE PRESSURE ...................................................................................................................................................................................16
MAINTENANCE &SERVICE INTERVALS ...................................................................................................................................................... 17
BOLT TORQUE .....................................................................................................................................................................................18
SPECIFICATIONS ......................................................................................................................................................................... 18
DECALS....................................................................................................................................................................................... 19
HANSA CHIPPER INDUSTRIAL LIMITED WARRANTY.................................................................................................................... 23
EXCLUSIONS........................................................................................................................................................................................23
LIMITATIONS....................................................................................................................................................................................... 24
CHIPPER WARRANTY PERIOD .................................................................................................................................................................24
HONDA ENGINE LIMITED WARRANTY ........................................................................................................................................ 25
EXCLUSIONS........................................................................................................................................................................................25
LIMITATIONS....................................................................................................................................................................................... 26
ENGINE WARRANTY PERIOD ..................................................................................................................................................................26
COMMISSIONING CHECKLIST AND REGISTRATION ..................................................................................................................... 27

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What can my Hansa chipper process?
Intended uses of the chipper
The C27HS Hansa chipper is built to process organic material including wooden branches not exceeding 160 mm diameter.
Do NOT use the chipper for any other purpose.
Organic wastes include:
Prunings, stalks, roots, vegetable matter, hay, grass, bark
Branches
Palm fronds
Dead and hard timbers (Note: these will dull the knives faster)
Paper or cardboard
Do NOT process:
Flax, root balls
Soil, bones, sand, grit, stones, metal
If you have any questions, contact your authorised dealer.
Do NOT exceed 160 mm branch diameter
Receiving your Hansa Brush Chipper
Congratulations on the purchase of a Hansa Model C27HS Brush Chipper.
Chipper components

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Safety
Preventing accidents is the responsibility of every equipment operator. The operator is responsible for any accidents or hazards
occurring to people or their property. Ensure every operator is familiar with the safe operation procedures and controls of the
machine, how to identify hazards, and the steps required to avoid injury while handling and operating the chipper. Relevant
information is contained in this manual.
Do NOT modify the design of the chipper.
Operator competency
Ensure that every person operating the chipper understands and follows the safe operating and maintenance procedures
as detailed in this manual.
Do NOT allow persons below the age of 16 to operate the chipper. Additionally, local regulations may restrict the age of
the operator.
Do NOT allow persons with reduced physical, sensory or mental capabilities, or lack of experience and knowledge to
operate the machine.
Identifying hazards and risks
Identify hazards and risks, and take preventative steps to avoid accidents and minimise risk. Possible hazards include, but are not
limited to, moving parts, thrown objects, weight of chipper and components, and the operating environment.
Below is a list of hazards and actions required to prevent injury.
Hazard
Risk
Corrective action
Dust
Injury or irritation of the
eyes
Respiratory irritation
Wear safety glasses
Process freshly cut materials and / or wear a dust mask
Exhaust Fumes
Respiratory irritation
Place the chipper in a manner that the operator or onlookers
are not exposed to direct exhaust fumes
Hot Exhaust
Heat burns
Keep bare hands and other body parts a safe distance away
from hot exhaust
Fire
Heat burns
Clear any build-up of chipping debris around the engine and
exhaust regularly
Belt Drive
Skin pinching and/or
abrasions
Ensure that the belt guard is in place, and keep away from
the belt
Cutting rotor and knives
Pinching, crushing, cutting,
severing
Keep hands and other body parts out of the inlet chute
Use a stick to push materials into the inlet chute
feed roller
Do NOT push material into the feed roller with your
hands
Feed swing arm
Crushing, severing
Do not touch or approach the feed roller motor and swing
arm while the machine is operating
Feed roller and feeding
material
Being pulled into chipper
resulting in possible
crushing, cutting, severing
Do not stand directly in front of the inlet table while feeding
material into the chipper; stand to either side.
Do not climb onto the inlet table or enter the infeed chute
unless the machine is off, and the cutting rotor is stationary.
Sound
Damage to hearing
Always wear hearing protection when operating the
machinery
Discharge material
Eye injury, minor cuts
Always wear safety glasses when operating the machinery
Do NOT stand in front of the outlet chute
Do NOT face the machinery in a place where the

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outlet chute is directed on a hard surface
Feeding material
Cuts and scrapes
Wear tight fitting safety gloves
Wear tight fitting long sleeves and pants to cover bare skin
when operating the machinery
Weight of the chipper
Straining, crushing
Place the machinery on firm level ground
Do NOT attempt to move the machinery up/down
slopes unless is attached to a towing vehicle
Pinch points
Pinching, crushing
When opening/closing the inlet table, rotor cover, or other
guard, it is recommended to use the handles provided
Petrol, oil, grease
Poisoning, skin irritation,
harmful vapours
Take care when handling petrol, oil and grease
Wash skin if contaminated with petrol, oil or grease
Do NOT refuel the chipper in enclosed areas
Towing safety
Rotate the discharge chute to face the opposite direction of the towing vehicle before towing and lock into position
Lock the feed table in the up position
Connect the tow coupling to the towing vehicle (check the ball dimensions are the same as the coupling)
Connect safety chain with shackle
If the machine is fitted with brakes, check handbrake is off and road brakes are on by removing the reversing lever
Plug in lights and check they are operational
Check wheel nuts and axle U-bolts periodically to make sure they are secure
Ensure the jockey wheel is in the up position and locked away during transport
Ensure the machine is towed in accordance with local trailer transport regulations
Operation
The chipper is self-feeding and has a large inlet opening. It can process:
•Prunings, stalks, vines, leaves, roots and vegetable matter, paper and cardboard
•Freshly cut material is better to process than dry material
•Maximum capacity is 160 mm diameter branches
It is recommended to keep a wooden stick handy, approx. 60 mm diameter x 1000 mm long for:
•Pushing in short, brushy and very leafy materials
•Keeping the inlet table clear
Outlet chute adjustment
The C27HS is fitted with a freely rotating outlet chute, allowing the operator to precisely
control the direction of material discharge from the machine. The chute can easily be
adjusted by undoing the clamping bolt, adjusting the outlet chute direction as needed, then
doing the clamping bolt back up.
Additionally, the end of the outlet chute is fitted with two deflector plates that you can adjust
to control the angle and distance that material is discharged. A wingnut is located on the side
of the upper deflector to lock it in place.

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Feed roller control
The C27HS is equipped with a feed roller which facilitates the process of feeding material
into the machine. The feed roller is controlled via the yellow control bar which surrounds the
inlet table. The control bar has three settings:
1) Reverse
2) Neutral
3) Feed
When the bar is fully pushed in, the feed roller will be set to reverse. When the bar is fully
pulled out, the feed roller will feed material. The neutral position lies between the reverse
and feed positions.
Automatic Feed Controller (AFC)
The feed roller is fitted with an electronic automatic feed control system which is designed to limit the feed rate of material into
the machine in order to prevent the engine from stalling.
This system eliminates the need to control the speed at which the branches are fed into the chipper manually. A sensor detects the
RPM of the rotor (and hence the engine). Once the RPM of the rotor drops to a pre-set level the feed roller stops and the branch
stops feeding into the machine. The engine then picks up in RPM and once it reaches a pre-set speed the feed-roller will start
feeding again. The feed roller will also reverse back slightly after stopping (reducing the friction between the wood and knives)
resulting in a quicker engine recovery.
The feed roller will only work once the engine is turned on and the engine has reached full throttle after engaging the rotor. If the
green LED light on the AFC controller is flashing this indicates the feed roller isn’t turning. When this changes to a solid green light
(when the engine reaches maximum RPM) the feed roller will be operational.
The AFC has 19 different pre-set positions at which the feed will stop.
Adjusting the AutoTrip setting:
1. Turn the ignition key into the ‘ON’ position. Alternatively, this can be adjusted when the machine is in operation.
2. The version number will initially be displayed on the LCD display, wait until this clears.
3. Push the ‘Menu’ button once.
4. Adjust the AutoTrip setting down using the ‘Menu’ button or up using the ‘Set’ button. There are 19 different positions at
which the feed will stop. At setting 1 the engine is dropping further in RPM, whereas at setting 19 the engine is only
dropping marginally in RPM before the feed roller stops. Adjust to a setting which is most suitable to you. Once adjusted
the screen will return to the Hour meter / Tachometer display after 5 seconds, saving the desired setting.
If there are any problems with the electronic automatic feed system, the chipper can be used with the auto-feed disabled. To
disable auto-feed, adjust the AutoTrip setting down to 0 or up to 20.
WARNING! Be careful using the machine with auto-feed disabled as the machine can be stalled easily.
Hour meter / tachometer
The LCD display will toggle between the current engine RPM and machine hours every 5 seconds. Alternatively, the operator can
toggle between the two by pushing the ‘Set’ button.
Checklist before operation
Engine:
✓Check oil level in engine
✓Check condition of air cleaner
✓Refer to engine manual for more details
Check Hydraulics:
✓Check level of hydraulic fluid
✓Check all hydraulic components for leaks
Feed –Neutral –Reverse

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General:
✓Check drive belt and pump belt for proper tension
✓Check machine for proper lubrication
✓Check nuts and bolts to ensure they are tight
✓Check tires for proper air pressure as stated on the tire
✓Check petrol level
✓Check that the fuel cap is secured and there is no fuel leaking from the tank
✓Check direction of the discharge chute
✓Check guards are all in place and in good condition
✓Check all labels are legible. Replace if necessary (contact Hansa for replacements)
✓Refer to maintenance section for more details
Safe setup procedures
Ensure all pre-operation checks have been done
Setup the work site so there is no danger to traffic or public and provide adequate warnings
Ensure the chipper is positioned in an open area and on firm level ground.
Ensure that chipper components are in place and in good condition
If any parts are worn or damaged, contact Hansa for replacements
Ensure the feed control bar is in the neutral position when starting the chipper
Ensure the inlet table is clear of material when starting the chipper
Ensure the throttle control lever is the initially in the idle position when starting the chipper
Ensure the outlet chute is discharged onto soft ground (e.g. grass)
Do NOT allow the outlet chute to discharge chip onto hard surfaces (such as a paved or gravel surface)
Ejected material can rebound and cause injury
Keep children, pets and spectators clear of the work area at all times
Do NOT operate the chipper where there is a hazard to onlookers
Do NOT allow any person under the age of 16 to operate the chipper
Refuelling:
Take extra care in handling fuels
They are flammable and vapors are explosive
Use only an approved fuel container
Always replace and securely tighten fuel cap after refuelling
Allow engine to cool down before refuelling
Do NOT smoke when using or refuelling the chipper
Never remove fuel cap or add fuel with the engine running
Never refuel the chipper indoors
Never store the chipper or fuel container inside where there is an open flame, such as a water heater
If fuel is spilled, do not attempt to start the engine. Wipe up the spilled fuel and move the chipper away from the
area of spillage before starting
Safe operating procedures
Wear safety equipment: Safety glasses and earmuffs must be
worn at all times
Wear work gloves: The wearing of work gloves is optional but
highly recommended - ensure that the gloves fit tightly
Do NOT wear loose fitting gloves or gloves with long cuffs.
Loose gloves may get snagged by branches, which could result in the operator being pulled into the chipper
Tie long hair up
Long hair could be snagged by a branch and may be pulled into chipper
Wear clothes that sit tightly
Avoid scarves and any items that can get caught in the chipper or snagged on branches
Place the chipper on even ground and direct outlet chute onto soft ground
Ensure the chipper is positioned so that there is a minimum inlet table height of 600 mm off the ground
Ensure exhaust is pointing away from the working area and downwind from the operator and onlookers
Keep proper balance and footing at all times and stand at the same level as the chipper
Do NOT climb onto the inlet table to push material into the feed roller
DO:

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Do NOT run near the chipper
Keep your face and body away from the inlet chute. Stand to the side of the inlet table while feeding material into the
chipper
Standing to the side gives better access to the control bar and helps in keeping clear from flying debris
Feed only freshly cut material into the chipper
Do NOT feed in materials covered in gravel, stones and dirt as this can rebound, injure the operator and damage
the machinery
Prune to a size that suits the chipper’s capabilities
Pre-cut side branches
The branch will ‘self-feed’ more efficiently
Keep the engine clean of debris and other accumulations
This prevents damage to the engine or possible fire
Feed limbs and branches through butt end first, leaving the bushy head on
This helps guide the limb down the inlet chute
It reduces spinning and the occurrence of ejection of small pieces back up the inlet chute
Feed soft materials intermittently with branches
The wood chips tend to clean out any soft residue left in the chipper
The chipper can clog up with soft, wet or fibrous materials
Keep well clear of the outlet chute discharge area, even when the chipper is not currently processing material
High velocity, sharp discharge can cause serious injury
Keep the outlet free of blockage
If blockage occurs, turn the engine off and wait for rotor to stop spinning. Open the outlet chute and remove
material until the outlet chute is clear
Keep the feed roller free of blockage
If blockage occurs, turn the engine off and wait for rotor to stop spinning. Remove the feed roller guard by
unhooking the four rubber latches. Unhook the springs from the base of the chassis. Lift the swing arm up and
insert the rotor pin (located underneath the control panel) into the tab on the housing to lock the swing arm in
place (as per the diagram below). You may now safely clear the blockage. Remove the rotor pin, lower the feed
roller, reposition the springs, then replace the guard
Turn off the engine whenever you leave the work area
Run the chipper in an enclosed area
Exhaust fumes contain carbon monoxide which is poisonous, colourless, odourless, and tasteless
Operate the chipper wearing loose clothing and untied long hair
Stand at a higher level than the base of the chipper when feeding material into it
Feed flax and cabbage tree leaves into the machine
These stringy materials can wrap around the rotor shaft and work their way into the bearing.
If any stringy material becomes wrapped around the rotor shaft, remove it before it works itself into the bearing
Process old materials such as dried wooden branches
They get very hard and springy when dried out
They are more awkward to handle
The knives dull much quicker
Feed short, stubby pieces of wood into the chipper
DO NOT:
Rotor pin
Feed roller motor
Swing arm

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They bounce and spin in the inlet chute
Feed short stubby pieces together with longer pieces
Feed branches that are too large (max 160 mm branch diameter)
The chipper engine will stall, which could result in damage to the engine or drive belts
Put soil, sand, grit, stones, glass, pieces of metal or other foreign objects into the chipper
This will damage the sharp edge of the cutting knives and can rebound and injure the operator
Put root balls and dead wood into the chipper
This dulls the knives quickly
Overload the chipper
If the cutting rotor is slowing down, feed the material in slower
Transport the chipper while the engine is running
Tamper with the engine governor settings on the chipper
The governor controls the maximum safe operating speed and protects the engine and all moving parts from
damage caused by overspeed
Operate the chipper with blunt knives
This causes excessive vibration which may result in damage to the chipper
Remove any guards on the chipper unless the engine is turned off and the cutting rotor has come to a complete standstill
Enter the inlet chute
Get on, or lean over the feed table
Put hands or any other part of the body or clothing:
Inside the inlet chute
Inside or near the opening of the discharge chute
Near any moving part
Use the feed control bar as a handle to manoeuvre the machine
Starting procedure
Before proceeding, ensure the ‘safe setup procedure’ has been followed on page 5 of this manual.
Ensure the rotor is disengaged by winding the
engagement handle in the counter clock-wise direction
until the handle comes to a stop (located next to the
control panel).
Move the engine throttle control to approximately half
throttle. If the engine is cold, pull the choke knob out to
the “on” position.
Insert the key and turn it clockwise to the “on” position.
Turn it further clockwise to operate the starter, and hold
until the engine has started. Allow the engine to warm up
for 1-2 minutes.
WARNING: Never run the starter motor for more
than 5 seconds at a time. Allow to cool for 1 minute
before attempting another start.
1
2
Throttle lever
(1/2 position)
Choke knob
(“on” position)
Ignition key
(“on” position)

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Shutdown procedure
If the choke knob was pulled out to the “on” position,
gradually push it in to its “off” position. Gradually and
slowly engage the rotor by winding the engagement
handle in the clock-wise direction until it comes to a stop.
This should be done slowly to allow enough time for the
cutting rotor to pick up speed without stalling the engine.
Increase throttle to full for chipping (move the throttle lever to the top-most position).
Note: The engine must run at full throttle for the automatic feed control and feed roller to operate. Refer to the
‘Automatic Feed Control’ section on page 4 to set the automatic feed control to the desired setting.
To shut the machine down, move the throttle control
lever to the “min” position.
Once the engine has been given enough time to slow
down to idle speed (about 10-15 seconds), disengage the
rotor by winding the engagement handle in the counter
clock-wise direction until the handle comes to a stop.
WARNING! Only engage and disengage the rotor at
idle speed otherwise excessive vibration and belt friction
may cause damage.
Allow the engine to cool down by running at idle for at
least 1 –2 minutes before shutting down. Turn the
ignition key anti-clockwise into the off position to shut
the chipper down.
WARNING! The heavy rotor will continue to turn for
some time after the engine has been shut down. Do not
open the rotor housing cover until the engine and cutting
disk have completely stopped and the rotor is
disengaged.
3
4
1
2
3

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Troubleshooting
The chipper won’t start
•The engine oil level might be too low
The chipper is fitted with oil alert and will not start if the oil level is too low
Check the oil level and top up if required
•The chipper is placed on a slope
The chipper is fitted with oil alert and will not start if the oil is not level
Move the chipper to level ground
Belt drive engagement will not work
•The housing might be blocked
Turn engine off, disconnect the spark plug wire, ensure rotor has completely stopped, remove debris,
restart engine, then attempt to re-engage the belt drive
Drive belts squealing/smoking
•Drive belts are loose/damaged
Turn the engine off, disconnect the spark plug wire, ensure rotor has completely stopped. Follow the
belt tensioning procedure on page 13
Discharge slows down
•The chipper is clogged up
Turn the engine off, disconnect the spark plug wire, ensure rotor has completely stopped, remove debris,
then close and lock the outlet chute
Outlet chute is blocked
Outlet is pasted with wet/leafy material
Feed hard, dry material in with softer material
Turn the engine off, disconnect the spark plug wire and ensure rotor has completely stopped. Open up
the outlet chute and clear blockage
The material is ejected in long strips
•The knives and/or anvil might be blunt
Turn the engine off, disconnect the spark plug wire and ensure rotor has completely stopped. Inspect
and sharpen or replace knives and/or anvil as required. Ensure correct clearances between knives and
anvil
The chipper starts making unusual noise, the cutting rotor strikes a foreign object or the chipper starts to vibrate
Turn the engine off, disconnect the spark plug wire, ensure rotor has completely stopped, then inspect
for damage
Replace or repair any damaged parts
Check for and tighten any loose parts
Do NOT attempt to repair the chipper unless you are competent to do so
The chipper stalls when material is being fed
Auto Feed Control is not working
Check that AFC is on
Check the Autotrip setting is not at setting 0 or 20 (manual mode)
If AFC is not working, contact Hansa
The feed roller is not turning
Engine is not running at full throttle
Increase the engine throttle to max RPM
The feed roller is running too slow
Hydraulic pump belt loose/broken
Tension/replace belt
WARNING! Do NOT open the housing unless the engine and cutting rotor have completely stopped.

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Maintenance & service
Knife re-sharpening and knife replacement
How do I know that the knives need re-sharpening?
Chipper is vibrating excessively when processing material
Chipper is making more noise than usual when processing material
Rotor RPM is dropping more quickly than usual
Material comes out in long strips
Blunt knives will cause excessive vibration
Blunt knives result in damage to the chipper
How to re-sharpen the knives:
If you don’t have a surface grinder or are unsure how to re-sharpen the knives, contact a professional saw doctor or Hansa to
arrange re-sharpening.
Tools and materials required for re-sharpening (approx. 40 mins):
•24 mm ring spanner
•16 mm ring spanner
•8 mm Allen key
•Torque wrench with 18 mm and 24 mm socket
•A stick magnet (optional)
•Surface grinder
•Coolant
Remove the knives for sharpening:
Open the rotor housing cover by removing the
two housing cover locking bolts with a 16 mm
spanner, then lift the rotor housing cover to
access the cutting rotor. Rotate the cutting rotor
to gain access to the knives, then insert the rotor
pin (normally located under the control panel)
into the housing and through the cut-out in the
rotor to lock it in place.
Using a 24 mm spanner and an 8 mm Allen key,
remove the knives from the rotor. There are three
bolts that you must remove on each knife to do
so.
Be careful not to drop the bolts or knives
into the chipper.
A stick magnet can be used to retrieve
them if this does occur.
WARNING! Do NOT operate your chipper with blunt knives.
WARNING! Be careful when working around the sharp knives.
1
2
Rotor
locking pin

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Measure the width of the knife and check that it
will be at least 105 mm after sharpening.
If the knives will be shorter than 105 mm, then
the knives should be replaced. Please contact
your nearest Hansa dealer.
Sharpen the knives:
Sharpen the knives on a surface grinder. A cutting
angle of 31 ° is critical for the performance of the
chipper. Make sure there is plenty of coolant used
when grinding to avoid softening of the steel knives.
Note: You do not need to sharpen your knives unless
both sides of the reversible knives have been used.
Reinstall the knives:
Clean all mounting surfaces and remount the knives
in the reverse procedure. Torque the knife clamping
nuts up to 190 Nm.
After sharpening, the width of the knives will have
been reduced, therefore the gap between the knives
and anvil may require adjustment. There should be
3 mm of clearance between the knife and the anvil.
If there is not enough clearance, the knife edge may
touch the anvil through deflection when cutting
heavy branches and damage the sharp edge. Too
much clearance will allow small twigs and fibrous
materials to be dragged through without being cut.
To adjust the gap between the knives and the anvil,
first loosen the locking nuts from the adjustment
bolts on the anvil mounting plate using a 16 mm
spanner. Now tighten or loosen the two adjustment
bolts. Tightening these bolts will cause the anvil
mounting plate to slide further along the slotted
3
MIN 105 mm
4
5
6
Anvil
Rotor
disc
Knife
3 mm
clearance
Bearing
Top view: Knife and anvil set-up
Locking nuts
Rotor disk
Clamping bolts
Knife
31 °
Side view: Cutting rotor

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holes. Ensure you tighten the two bolts evenly to
avoid setting the anvil on an angle.
Once the correct anvil position has been set, ensure
the locking nuts on the adjustment bolts are
tightened. Additionally, ensure the clamping nuts
are torqued to 44 Nm.
Remove the rotor pin and turn the rotor slowly by
hand to check that it turns freely.
Close and secure the outlet chute.
Anvil adjustment
Whenever the chipper knives are inspected/sharpened, the condition of the anvil should also be checked. If the edge of the anvil
is significantly rounded and/or uneven, then it should be reversed or replaced. Typically the anvil will maintain its sharp edge for
about 500 hours of operation.
Anvil replacement
Remove the feed roller cover by unhooking the
four rubber latches. Unhook the springs from the
base of the chassis. Lift the swing arm up and
insert the rotor pin (located underneath the
control panel) into the tab on the housing to lock
the swing arm in place.
To remove the anvil, you must remove the three
countersink clamping bolts using a 16 mm socket
and extension. If the bolt head turns, hold it with
a 6 mm Allen key.
Note: Do NOT use the Allen key to turn the bolt;
turn only the nut.
Note: Ensure the gap between the edge of the
knives and the edge of the anvil is 3 mm. If not,
then the anvil can be adjusted via the two
adjustment bolts between the clamping bolts (as
per step 6 of page 11).
If the other side of the anvil hasn’t been used yet: rotate the anvil 180 degrees and place it back on the feed roller
housing wall. If both sides of the anvil are blunt: remove the anvil and replace it with a new one. Contact Hansa if a
replacement anvil is required.
WARNING! Every time the knife clamping bolts are torqued up to 190 Nm and loosened off again, the life of the bolts is
reduced. The knife clamping bolts must be replaced at most after every six sharpens. Contact Hansa for replacement
bolts (m16x50 countersunk bolts of grade 12.9 or higher). Use only genuine Hansa bolts.
7
1
Rotor pin
Feed roller motor
Swing arm
2
3
Countersink
clamping bolts
Countersink
clamping bolts
Adjustment bolts

Hansa C27 HS O&M Manual –OM-012 Revision C 19/12/2018
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Tighten the clamping bolts back up using a 16 mm spanner/socket, ensuring there is a spring washer between the
clamping plate and each nut. Torque the nuts to 44 Nm.
Belt tension
Correct belt tension is crucial for minimising belt wear and maximising machine efficiency. To check the belt tension, fully engage
the belt then open the bonnet. There should be approximately 5 mm deflection in the belt when pressing firmly on the belt (as per
the image below). If required, adjust belt tension.
Belt tension adjustment
Using two 24 mm spanners, unlock the two locking nuts
from above the adjustment block on the engagement
handle by turning the top nut anti clockwise and the
bottom nut clockwise. Then move both locking nuts
upward along the thread.
From the fully disengaged position, gently turn the
engagement handle clockwise until you feel it start to
resist. From this position, turn the engagement handle
two full revolutions in the clockwise direction, or until
there is a significant resisting force on the handle (there
should be about 5 mm deflection when pressing firmly
on the belt). This is the recommended tension for the
belt drive when in the fully engaged position.
Note: For new belts, allow another half revolution as the
tension will need to be increased after belt wear.
Using two 24 mm spanners, screw the two M16
adjustment nuts downwards until they touch the
adjustment block. Then turn the top nut clockwise and
the bottom nut anti clockwise simultaneously to lock
the nuts in place.
The new belts will wear into the pulley. Recheck the belt
tension after 10 hours of machine operation, and if
necessary, adjust them to the correct tension by
repeating this process.
4
1
2
3
Check for
deflection
here
Adjustment
block
Adjustment
nuts
Adjustment
nuts
Adjustment
block

Hansa C27 HS O&M Manual –OM-012 Revision C 19/12/2018
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Belt replacement
If the belts in your chipper look similar to any of the following images or are clearly broken, then they need to be replaced.
If a belt change is necessary, follow these steps
Using a 5 mm Allen key, unbolt and remove the pulley
guard (4 x M8 cap screws).
Turn the engagement handle counter clockwise until the
belt is fully disengaged. Remove old belts and replace (3 x
B46 vee belts).
Note: The belts pass in between the idler wheel and belt
guide on the tensioner arm.
Note: Engine not shown in this view.
Ensure belts are properly tensioned (follow the ‘Adjusting
belt tension’ process on page 13) before fastening the
pulley guard back into place.
1
2
3
Cracked underside of belt
Sidewall belt wear
Soft, swollen belt
Worn cover on back of belt
Split belt cover
Tensioner arm
Belt guide
Idler Wheel

Hansa C27 HS O&M Manual –OM-012 Revision C 19/12/2018
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Hydraulic pump belt adjustment
The hydraulic pump is driven by a synchronous belt. The belt does not require any tension, however the belt should not have any
slack either. The belt can be adjusted by loosening the four mounting bolts (using a 13 mm spanner) and moving the pump/pulley
up or down the slotted holes (as per the image below). The lower two bolts are best accessed from beneath the machine. If the
belt is damaged in any way, contact Hansa for a replacement.
Greasing bearings & pivot points
Points that need to be greased are as follows (as per the diagram below):
1. Two bearings on the rotor shaft, one under the engine cover and the other above the inlet opening
2. Two bearings on the feed roller
3. Two bearings on either side of the feed roller pivot
4. Outlet chute swivel, two grease nipples
5. One grease nipple on the engine engagement screw
These points must be greased every 50 operating hours. Ensure a suitable grease is used (bearing grease or all-purpose grease).
1
2
3
4
5
6

Hansa C27 HS O&M Manual –OM-012 Revision C 19/12/2018
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Hydraulic system
Replace oil filter after first 50 hours, then every 250 hours.
The hydraulic oil should be changed every 800 hours. It is a closed system therefore it should not become
contaminated, however if contamination is detected oil should be changed. Use only a good quality brand,
32 grade hydraulic oil.
Fill the hydraulic oil tank up to the black indicator mark to the left of the hydraulic oil level indicator. The
level should be checked with the engine off.
For any repair in the hydraulic system, contact Hansa Products or seek advice from a competent service
agent.
Engine servicing
For servicing of the engine, please refer to the engine manual. Change oil, oil filter, fuel filter and air filter as recommended in the
manual. Ensure the correct engine oil is used.
Other servicing
✓Check all bolts and other fasteners for the correct torque setting
✓Check wheel nuts and U-bolts are fastened correctly
✓Check and repack wheel bearings with grease every 12 months
✓Check air pressure in tires. Inflate to pressure as indicated on the tire
✓Check safety chains and hitch
Rotor bearing replacement
Replacing rotor bearing on engine side of rotor:
1. Remove engine pulley by unbolting both grub screws in bush. Then screw one grub screw into the third hole and tighten
until the pulley separates from the bush. Slide bush off the shaft, followed by the pulley.
2. Remove two grub screws in the bearing.
3. Remove M16 nuts and bolts bolting the bearing to the housing.
4. Remove and replace bearing.
5. When replacing the pulley ensure the rotor pulley is lined up to the engine pulley with a straight edge. Ensure the grub
screws are tightened evenly so the pulley is tightened evenly.
6. The gap between the end of the sensor and the sensing plate should be approximately 3 mm. Adjust the sensor
accordingly. If it is set further away, then the sensor may not work properly and therefore the AFC will not work.
Replacing rotor bearing on inlet chute side of rotor:
It is recommended to have this bearing replaced by a specialist Hansa dealer.
Tyre Pressure
The recommended tyre pressure is 65 Psi.

Hansa C27 HS O&M Manual –OM-012 Revision C 19/12/2018
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Maintenance & service intervals
Maintenance interval - service hours
10 or
50 or
100
250
500 or
800
Yearly
As req.
Service
Daily
Weekly
Biannually
Engine oil change - initial change
Initial
Hydraulic oil filter - initial replacement
Initial
Belt tension –check
Initial
Engine oil level –check
•
Coolant level - check
•
Radiator screen –check/clean
•
Air cleaner element –clean
•
•
Bearings –grease
•
Engine engagement rod –grease
•
Outlet swivel –grease
•
Knives–check, sharpen or replace
•
•
Belt guarding –remove and clean chip build-up
•
•
Drive belts tension - check/adjust
•
Hydraulic pump belt tension - check/adjust
•
Fan belt –check
•
Engine oil & filter –change
•
Nuts & bolts –check torque
•
Tires & rims –check
•
Hydraulic system –check
•
Spring mounting –check U bolts
•
Brake fluid - check
•
Hydraulic oil filter - replace
•
Battery electrolyte level & terminals - check
•
Engine fuel filter –replace
•
Outlet chute –remove & clean swivel
•
Feed roller tension springs - replace
•
•
Anvil - Check
•
•
Air cleaner element –replace
•
Hydraulic oil & filter –replace
•
Feed roller teeth –sharpen
•
•
Engine system
•
Battery –replace
•
Drive belts –replace
•
Hydraulic pump belt –replace
•
Knives –replace
•
Anvil –replace
•
Hazard labels –replace
•

Hansa C27 HS O&M Manual –OM-012 Revision C 19/12/2018
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Bolt torque
When servicing the machine, ensure any bolts you remove are torque to the values listed in the torque table below:
Relative Strength Bolt Marking
4.6
8.8
Recommended Tightening Torque
Recommended Tightening Torque
Bolt size
Spanner size
lb ft
Nm
lb ft
Nm
M8
13 mm
6
8.5
16
22
M10
16 mm
12.5
17
32
44
M12
18 mm
22
30
57
77
M16
24 mm
54
73
140
190
M20
30 mm
105
143
274
372
Specifications
C27 HS
General
Length
3150 mm
Width
1585 mm
Height
2155 mm
Weight
750
Engine
Make & model
22.3 HP Honda GX690
Type of fuel
Petrol
Capacities
Fuel tank
33 L
Hydraulic oil tank
23 L
Chassis
Frame description
75 x 50 x 3 mm RHS
Wheels
13” wheels
Cutting System
Disc speed
1800 RPM
Disc diameter
650 x 20 mm
Shaft diameter
50 mm
Knives
Two, reversible
Feed System
Feed opening
330 x 178 mm (13” x 7”)
Chipping capacity
160 mm (6.5”)
Feed table height
700 mm
Feed table length
1550 mm
Inlet chute opening
960 x 650 mm
Roller Style
Single roller, spring mounted, 300 mm (12”) diameter
Feed speed range
0-40 m/min (135 f/min), full reverse
Discharge System
Discharge height
2155 mm
Degree of rotation
360°
Transmission System
Belt drive
3x B46