Kellfri 21-SV60 User manual

21-SV60
FORESTRY TRAILER
CAREFULLY READ THE OPERATING INSTRUCTIONS BEFORE USING THE PRODUCT!
OPERATING INSTRUCTIONS TRANSLATED FROM THE ORIGINAL

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TABLE OF CONTENT
Page
Introduction 3
Product information 3
For your safety 4
Product safety information 5
In case of emergencies 6
Personal protection 6
Warning decals 7
Surroundings 8
Measures before use 8
Connecting the trailer 8
Use 9
Connecting equipment 9
Use and care 9
Instructions – use of winch 9
After use 9
Transport and storing 10
Maintenance and service – trailer 10-11
Rotator 12
Usage restrictions 12
Working conditions 12
Installation instructions 13
Rotaror lead-through 13
Instructions Rotator 14
Service and maintenance for Rotator 14
Exploded diagram—Rotator 14
Grapple claw GL47 15
Technical data GL47 16
Lifting graph 17
Spare parts crane 18
Spare parts: cotters 19
Hydraylic hoses for Valve package 20
Hydraulic scheme 21
Spare parts - trailer 22
Instructions radio-controlled winch 23-28
Driving 29
Loading work 30
Complaint form 31
Warranty and EG-marking 32
Certain details are extracted from the “Kör åt skogen rätt och säkert” publication from
the Swedish University of Agricultural Sciences

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INTRODUCTION
Thank you for choosing a product from Kellfri AB. By following the general safety information
and the instruction manual and by using common sense, you will have a great and safety use of
your Kellfri product for many years. Kellfri designs and delivers eective, aordable machinery
and components for forest, agriculture, construction and gardening in Sweden, other Nordic
countries and Europe.
PRODUCT INFORMATION
Kellfri’s forestry trailer enables loading and unloading timber. It is especially suitable for the self
working farmer in agriculture. The forestry trailer is intended to be connected to the tractor
hitch and towed by an agricultural tractor. The valve is placed, for example, in the tractor’s rear
window. Dierent tractors requires dierent detail solutions for brackets on the valve / tractor.
Hoses between the valve and the crane may have to be adjusted in some cases. Kellfri does not
stand for these customizations. The trailer is not equipped with a lighting device and intended
for use only in daylight. Otherwise equip the forestry trailer with magnetic taillight.
KELLFRI FORESTRY TRAILER SV60
Maximum load 6 tons
Crane reach 4,7 m
Total length 5,4 m
Total width 2,0 m
Articulated steering with one cylinder Yes
Wheels 11,5/80-15,3 10 ply
Support foot Standard
Articulated drawbar Yes
Number of struts 4
Hydraulic support legs Standard
Turn cylinder sleewing house crane 4
Gripping area 0,18 m2
Pendulum brake between the folding arm and rotator No
Turning rotator Standard
System pressure 17 Mpa
Valve -2 levers Standard
Winch No (Can be ordered as extra equipment)
Brakes No
Headboard(Height) 1,09 m
Load width bottom 1,10 m
Load width top 1,56 m
Ground clearance 0,52 m
Weight 1600 kg
Recommended power requirement(tractor) 30-60 hp

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FOR YOUR SAFETY
Before using the product, please read the safety information and instruction manual and understand its
contents for your own and others’safety. Always keep the safety information and instruction manual easily
accessible to the user of the product.
Remember that it may be good for your own and others’ safety to read the safety information every now
and then. If the instructions manual is damaged or otherwise unusable If the instructions manual is dam-
aged or otherwise unusable, please contact your retailer.
For more information visit our website: https://www.kellfri.co.uk/
Do not use this equipment if you are feeling sick, tired or in inuence of alcohol. Nor if you are under the
inuence of strong medications or drugs, suering from strong depression or severe mental illness. Al-
ways follow the general trac rules and regulations and the rules of the Animal Welfare Act. Persons under
15 years old and people with mental illness may not use these product.
Warning!
The product must not in any circumstances be modi-
ed without permission from the manufacturer.
Unauthorized modication of the machine and/or
accessories can cause fatal injuries or death to op-
erator or others.


Warning!
Never use faulty safety equipments!
PRODUCT SAFETY INFORMATION
• For safety reasons the forestry trailer can only be used in the manner prescribed in this instruction.
The user is responsible for the instructions are read through and followed. Implements connected to
the tractor – read the manual of the tractor.
• Always check the performance of the machine combination that will be used with the forestry trailer
to ensure safety and performance.
• Never overload the trailer!
• Never leave the driver’s seat until the towing vehicle is braked.
• Danger zone 15 meters. No one other than the operator may be present within the danger zone dur-
ing operation with the forestry trailer.
• The trailer may not be parked with the load unattended!
• When the forestry trailer shall be disconnected, it must be done with unloaded carriage on at
ground and the trailer wheels must be secured with appropriate brake pads.
• To stop the movement of the forestry trailer in emergencies, stop the tractor.
• At interruption of oil supply to the crane, there is a risk of losing suspended load. First lower the lift-
ing arm then the folding arm and unload the grapple claw.
• The tractor should be equipped with re extinguishers of type ABE2 or 3. Contact your insurance
company.
• Forestry trailer is equipped with a 50mm ball coupling. Check the condition of the coupling regu-
larly. Maximum tensile loading on the ball coupling is 9 tons and maximum pressure 3 tons.
• The noise level of the trailer does not exceed 70 dB (A)
• Be careful when working with equipment that has hydraulic hoses because the oil under pressure
can penetrate the skin. Seek medical attention immediately if this occurs.
• The trailer is not equipped with a lighting device and it is intended for use only in daylight. Other-
wise equip the forestry trailer with magnetic tail light.
Kelfri disclaim any responsibility for self-made modications, changes or alterations!

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INCASE OF EMERGENCIES
In case of an emergency please dial 112.
Keep cell phone or emergency phone available specially when working alone. First aid kit and
re extinguishers must be kept easily accesable during all work, maintenance and service.
PERSONAL PROTECTION
Always wear suitable clothing and footwear. Do not wear loose clothing or jewelry when using
the machine. Remember to put up long hair when operating rotating machines. Wear protec-
tive gloves, to prevent risking burns on contact with hot surfaces such as exhaust system, and
to avoid oil and gasoline on the skin. Hearing protection should be used when the engine is
running.

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SYMBOL EXPLANATION
Read the instruction manual! Before work begins. Caution
Before maintenance, service, connection and disconnection
of the machine, the the tractor’s engine must be switched o
and the ignition key removed.
Danger zone 15 m
Respect the equipment danger zone!
Warning! Risk of crushing!
No one is allowed to stand underneath suspended load.
Lever function
Max pressure towing eye (3 tons)
Lubrication after 10h of operation
Always use the support legs when loading / unloading
Tighten all screws and connections
Warning! Electrical lines.
Max 300 kg grip
Warning- oil jet from hydraulic hose
Warning- moving parts.
Warning! Forbidden to stay on the machine!
Warning! Risk for child accident!
Children are not allowed to be near the machine
The product is CE marked
WARNING DECALS
Make sure warning decals are always visible and clean them when necessary. Do not use a high-pressure
washer directly on the warning label. If a decal becomes worn or in any other way unusable, order a new
set of decals. An SMV sign must be visible and mounted when travelling on public roads. The trailer is tted
with the following decals:

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SURROUNDINGS
Make sure your working area is clear from people, children and objects before installing and
using the machine. Risk of serious injuries can occur during operation. Take an extra caution
when children are in the area where the equipment/ product is being use or stored. Check
the area for low hanging electrical wires. Be careful when working on slopes and near ditches.
Always work alone with single - purpose tools/products. Never have junk lying in your area.
Keep working areas clean. Always respect the risk zone.
Danger!
Children in the area should be supervised.
9. SAFETY MEASURES BEFORE USE
Read the safety information and instruction manual carefully. Be sure you understand the safe-
ty measures, instruction manual and warning labels. Use common sense when operating the
machine and use appropriate personal protective equipment. Always check the performance
and the machine combination that are used. It’s highly important these matches in a satisfac-
tory manner. This is to ensure the product or the function and most important yours and oth-
ers safety. Do visual inspection of equipment or product before use. Fix or replace damaged
or worn parts immediately to reduce the risk of injury. Lubricate moving parts and check that
all screw-nuts and bolts are tightened. Learn and remember the correct working methods.
Beginners should always keep a low speed, use extreme caution before routine and product
knowledge is achieved. The user/customer is responsible to handle the situation correctly. The
product should not be taken into use unless it can be done in a safe way for the user.
Warning! Risk of crushing due to moving parts!
10. CONNECTING THE TRAILER
• Read the instructions in full.
• Check ball hitch on the trailer. Then hook the forestry trailer on the tractor.
• Connect hydraulic hoses to the tractor’s hydraulic system. (See: Connecting the valve package)
• Drive and check the equipments movement carefully. No hoses must be stretched too tight or rub
against sharp edges, etc. At any leaks retighten leaking couplings. Do not tighten the couplings
more than needed, over tightening the coupling can lead to a breakage.
Warning!
For safety, this product should only be used in
the manner described in this manual. The user is
responsible for the instruction to be read through
and followed.

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OPERATING THE MACHINE
Only people who understand the safety information and instructions in this manual may operate the
equipment. Be alert and careful when working with the machine and only use the tool or product in the
manner described in this manual. When working with equipment that has moving parts, there is always
the risk of injury. Be careful when working with equipment equipped with hydraulic hoses ,oil under pres-
sure can penetrate the skin. Seek medical attention immediately if this occurs. Always work alone with the
tools that are dened as single porpose tools. Respect the equipment’s danger zone.
Connecting equipment.
• The hydraulic valve is best placed on the tractor. Hydraulic pressure hoses must not be brought
inside the cab.
• Connect the crane valve pressure and return hose. Make sure that pressure and return hose are not
connected incorrectly. The valve can be destroyed if the hoses are connected incorrectly. Mark hoses
with decals to better identify PRESSURE and RETURN.
• Connect hoses to articulated steering. Double acting hydraulic sockets are required on
the tractor.
USE AND CARE
• Check that the equipment is not damaged before connecting it to the vehicle.
• Connect the equipment and lock it in place.
• Air frequently occurs in the system in the beginning, carefully drive all cylinders in their end posi-
tions several times to remove air in the system.
• Practice the movement pattern calmly and methodically for loading and unloading timber in the
trailer.
• Hold the crane low during all transportation.
• The stability is worse in the beginning when loading, be careful!
• Both support legs must be lowered when loading on and o the timber. It is prohibited to drag
timber with the crane when the tractor is running. The tractor must be stationary during use of the
crane.
• It is forbidden to fold the folding arm to maximum and then press down the lift arm. The crane is
designed to lift the timber, not pressing timber. Maximum speed when driving is 30km / h.
• The load should be distributed evenly over the cart.
• All cargo that sticks out should be anchored well.
INSTRUCTIONS FOR USING THE WINCH ON THE CRANE’S LIFT ARM.
• The winch is not approved for lifting. Load the trailer with the crane.
• The winch is operated either with the hydraulic valve at the crane base or optional with
radio-controlled electric valve. At the electrical installation check that the voltage is 12V.
• Align the lifting arm towards the timber to be winched. Place the grapple claw into the
ground. Use the support legs on the trailer.
• Decouple the winch drum.
• Pull the wire gently and make it stick to the timber. Grease the wire if it wants to pinch
the wire drum.
• When winching in, watch out for the risk of crushing!

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AFTER USE
Rinse the trailer when needed.
TRANSPORT AND STORING
Make sure there are no people, children and foreign objects around the area before transport-
ing the machine. Always take an extra caution during the transport. Ensure that the product
is well secured and that transport brackets are mounted. Always place the load as low as pos-
sible. Respect the danger zone even during transport. When lifting the equipment, never go
underneath suspended loads. Trailer used for transport should have working brakes. Always
store the machine in a dry place preferably underneath a cover when not in use. Ensure that
the product is stable and not likely to tip over. Never let children play where the machine is
being stored. Always keep in mind the risk of tipping!
MAINTENANCE AND SERVICE
Ensure that the unit is stable and cannot tip over during maintenance and service. Replace damaged or
worn parts immediately to reduce the risk of abrasion. Always perform maintenance, service and inspec-
tion, as recommended. Use only original replacement parts or spare parts with equivalent performance to
reduce the risk of damage. All repairs and connections with electricity must be performed by a qualied
person. Check all nuts and bolts are tightened after performning maintenance and service.
Always test the machine before using it.
• Regularly check the condition of the equipment to prevent breakdowns. If cracks, twists, bends,
gaps or fatigue is discovered, stop using the equipment and rectify the fault. Worn parts must be
replaced. Grease moving parts regularly.
• Never repair hydraulics before rst ensuring that there is no pressure in the system.
• Never work under a suspended load.
• Make sure all connections are tightened after carrying our maintenance and service work. Always
test the machine before starting work.
• Check all parts for wear and retighten bolts, connections and hoses if necessary.
• Immediately replace hydraulic hoses if cracks or wear are detected.
• Check that the hoses are not rubbing against sharp edges, Rectify if necessary.
• Tighten leaking connections if there are any leaks. Do not overtighten the connections. They may
break if they are tightened too much.
• Turn o the tractor and move the hydraulic levers back and forth to release any pressure that may
still be in the oil hoses and pipes before starting any work on them or the hydraulic cylinders.
• It is recommended to use an oil lter with 20 µm ltration.
• Check the system oil ow and pressure on a regular basis.
• Never perform welding on the towbar eye as this may change its durability.
The hydraulic system must only be operated using the appropriate hydraulic oil. (Oil change
intervals: see the tractor’s operating manual). Use gearbox oil SAE 80 (2.5 L) or similar in the
slewing housing. All grease points must be lubricated every 25 hours. Retighten all nuts and
bolts after several of hours of operation and at the end of a day’s work.
Danger!
WARNING: Pressurised oil and fuel leaks can
penetrate skin and cause serious injuries. Do not
use your hands to locate leaks. Use a piece of
paper or cardboard to look for leaks.

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CARE INSTRUCTIONS
1. Do not overload the tractor and trailer!
2. After wheel replacement, check that the wheel nuts are tightened and repeat after a stable period of
operation. The tightening torque must not exceed 45 kpm. Use a torque wrench if possible.
3. Check that the bearing setting is correct to prevent bearing play and abnormal bearing wear. The bear-
ing setting should preferably be too loose than too tight.
2
3
Service Interval Measure
Tyres Before each use Check the air pressure in the tyres. It must always at least be the
recommended pressure (see tyres).
Cables and hoses Before each use Check that all cables and hoses are intact.
Wheel nuts Perform an initial
check after 2-3 hours of
operation,
and subsequently
2-3 times a year.
Retighten all the wheel nuts, 250 Nm
Trailer parts Regularly, at least
3times a year
Check by performing a visual inspection of any brakes, lights,
SMV signs, towbar eyes, axles, bogie eyes, hinges and turntable bearings
(if installed). Replace worn and damaged parts.
Trailer After each use Wash down with clean water if necessary.
Hydraulic oil Regularly Always check the quality of the oil in the tractor’s hydraulic
system. Dirty oil must not be used and must be changed before
connecting the trailer to the tractor.
Recommended oil ow: 20-40 l/min
SERVICE SV60

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ROTATOR
USAGE RESTRICTIONS (Safety instructions when working)
• Check the rotator’s maximum permitted load and the load weight.
• Do not overload the rotator!
• Make sure the hydraulics have reached working temperature.
• Check movement speeds and directions as well as control lever function.
• Lift the load before moving and rotating it.
• Never leave a load unsupervised during lifting.
• When there is no pressure in the rotator, there is no braking torque and the load may
rotate due to factors such as wind or imbalance. A counter movement has to be used if
this rotation is to be stopped.
• Check that the hydraulic hoses do not touch any obstacles. A broken hose or nipple can
cause the load to fall or rotation to continue.
• When in transit or in storage, position the crane so that it is not supported by the rotator.
For example, the crane boom must not be allowed to rest against the rotator.
WORKING CONDITIONS
The hydraulic turning device, or rotator, is designed for use on a hydraulic lifting crane, e.g.
cranes that handle timber or single items. The rotator axle is tted to lifting equipment,
e.g. a grapple, which grips the load. The load can be rotated horizontally using the rotator.
The hydraulics are connected to the lifting equipment through the rotator axle. The maxi-
mum permissible load on the lifting equipment must not exceed the corresponding value
for the rotator. When the rotator is in use, the hydraulic oil must be at the correct working
temperature and satisfy standard viscosity values.


INSTALLATION INSTRUCTIONS
• Rotator connection to the crane
• The rotator must be connected to the end of the crane boom using a link.
• The rotator must always be suspended freely and vertically in the direction of the axle. The link pins
must be locked in place using clip pins.
• The rotator is connected to a bushing on the lifting equipment using a pin that is locked in place
with clip pins.
CONNECTING THE ROTATOR TO THE CRANE HYDRAULIC SYSTEM
Turning the rotator: The system should be thoroughly cleaned. Once the hydraulic system has reached
working temperature, the oil should be circulated to channel any impurities to the lter. The hoses for
the rotator’s turning unit are connected together using intermediary nipples before the rotator. Oil can
circulate in this line for at least 5 minutes. The rotator is connected to the crane’s control valve via suitable
hoses and pipes. The crane must be equipped with pressure-limiting valves that limit the pressure going
to the rotator to a maximum of 200 bar. If a higher pressure is possible, pressure-limiting valves should be
installed on the rotator’s hydraulic line. The oil ow for rotator rotation is regulated using control nipples.
The rotational direction of the rotator and grapple movement must correspond to the markings on the
control levers. If rotation is too slow, the rotator’s movement speed must be checked. Control nipple open-
ings have been factory-set to a diameter of 1.5 mm. They can be enlarged in 0.1 mm increments.
ROTATOR LEADTHROUGH
When connecting the hydraulics, it should be noted that the maximum pressure in the pres-
sure duct is 200 bar and that the marked duct in the rotator’s upper cover (upper duct) and the
axle must be linked to the opening side of the cylinder on the lifting equipment, e.g. a grapple.
When the grapple opens, it should be noted that the cylinder movement does not extend fully
to keep the duct under pressure as this pressure is an unnecessary load on the rotator. The
crane and equipment must be compliant with the Machinery Directive.
A,B= Rotation
1=Grapple closed
0= Grapple opened TECHNICAL DATA KR07
Turning angle Unlimited
Max. operating pressure 200 bar
Rec. l/min. 20L/m
Torque (200 bar) 655 Nm
Max. axial force 20 kN
Max. permissible load 1 900 kg
Weight 17 kg
Attachment point ø 60 mm upper
ø 49,5 mm lower
Lock pin ø 25 mm upper
ø 25 mm lower


No Designation Total
1 Bolt 8
2 Lower bearing
housing
1
3 Axle seal 1
4 Seal 1
5 Bearing 1
6 O-ring 2
7 Axle diam. 40 1
8 Spring 10
9 Wing 5
10 Seal 2
11 Plug 1
12 Spacer 1
13 Plug 1
14 Upper housing 1
EXPLODED DIAGRAM ROTATOR
OPERATING INSTRUCTIONS
Exercise caution when using the crane and rotator and act in accordance with the crane’s
safety instructions. Lateral loads on the rotator axle should be avoided. For example, prior to
lifting, loads must not be pulled using the crane or the crane’s base vehicle. A broken hose
or nipple can cause the load to fall or rotational movement to continue. Damage to hoses or
devices can cause the release of a high-pressure liquid jet.
20. SERVICE AND MAINTENANCE INSTRUCTIONS
If the rotation of the rotator becomes uneven and sometimes stops, the equipment should
be checked. The pins in the upper housing of the rotator should be greased regularly. The
rotator’s upper housing, axle, hoses and nipples should be checked every week due to the
risk of cracking. Any damage or oil leaks must be rectied immediately. Leaks in the lead-
through seals manifest themselves, e.g. by weakening the grapple’s closing force or causing
the grapple to open. When carrying out the annual crane inspection, the bolt fasteners should
checked to ensure that they are correctly tightened. Under no circumstances must the rotator
be repaired by welding. Replacement of the rotator’s seals and other components must be
done in good conditions. Contact your local sales representative for more information.

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GRAPPLE CLAW 18
COTTER
MARKING
length
(mm)
DIAMETER
(mm)
TOTAL
A 60 25 4
B 65 25 2
C 80 25 1
D 95 25 1
A
B
B
A
D
C
A
A
NOTE !!!
Never leave the cab until:
- You have secured and unloaded the grapple loader and you have stopped the tractor.
NOTE! The stability of the trailer is less at the start of loading.

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CRANE  GL
TECHNICAL DATA 21-GL47
Crane reach [mm] 4700
Grapple (width) [mm] 1000
Gripping area [m ²] 0,18
Rotator weight [kg] 13
Torque [kNm] 3,5
System pressure [Mpa] 17
Recommended pump capacity [l/min] 20-45
Oil volume - slewing house [l] 1
Crane weight incl. grapple and rotator [kg] 600

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LIFTING GRAPH  GL
850 550 400 300
5 000
[mm]
[kg]
1 000 2 000
3 000
5 000
4 000
4 000
3 000
2 000
1 000
2 000
3 000
4 000
5 000


NO SPARE PARTS ART.NR. GL DESIGNATION
1 R21-SV60.005 Slewing house body
2 R21-SV60.006 Boom
3 R21-GL47.030 Folding arm
4 R21-GL47.001 Boom cylinder
5 R21-GL47.002 Fold cylinder
6 R21-GL47.010 Rotator holder
7 R21-GL47.011 Cotter between the rotator – rotator holder GL47
8 R21-GL47.012 Bolt between rotator and grapple claw GL47
9 R21-GL47.004 valve Package
10 R21-GL47.013 P-SATS cylinder boom GL47
11 R21-GL47.014 P-SATS cylinder - fold/stick GL47
12 R21-GL47.015 P-SATS cylinder-grapple claw
13 R21-GL47.016 P-SATS cylinder - rotate
14 R21-GL47.031 Folding point complete
1
23
4
6
5
14
7,8


7,8
1
2
3
45
6
7
8
910
11
12
SPARE PARTS: COTTERS
NO ART.NO. Length (mm) Diameter (mm)
1 R21-SV60.009 250 50
2 R21-GL47.018 130 40
3 R21-GL47.028 93 30
4 R21-GL47.027 95 25
5 R21-GL47.026 95 25
6 R21-GL47.025 105 25
7 R21-GL47.024 105 25
8 R21-GL47.022 90 25
9 R21-GL47.023 100 35
10 R21-GL47.021 90 25
11 R21-GL47.011 95 25
12 R21-GL47.012 85 25


Hydraulic hoses from the valve package to the cylinder.
NO DESCRIPTION
length
[mm]
Coupling
Valve package
[“]
TYPE Angle [°]
Coupling
Cylinder[“] TYPE Angle[°]
TPressure in 2500 1/2 Female Straight 1/2 Male Straight
RReturn 2500 1/2 Female Straight 1/2 Male Straight
1A Boom 3550 3/8 Female Straight 3/8 Fe-
male
Straight
1B Boom 4100 3/8 Female Straight 3/8 Fe-
male
Straight
2A Grapple claw 8200 3/8 Female Straight 1/4 Male Straight
2B Grapple claw 8200 3/8 Female Straight 1/4 Male Straight
3A Rotator 8200 3/8 Female Straight 1/4 Male Straight
3B Rotator 8200 3/8 Female Straight 1/4 Male Straight
4A Support leg
(right)
2850 3/8 Female Straight 3/8 Fe-
male
90
4B Support leg
(right)
2850 3/8 Female Straight 3/8 Fe-
male
90
5A Support leg (left) 3350 3/8 Female Straight 3/8 Fe-
male
90
5B Support leg (left) 3350 3/8 Female Straight 3/8 Fe-
male
90
6A Turn cylinder 3600 3/8 Female Straight 3/8 Fe-
male
90
6B Turn cylinder 3400 3/8 Female Straight 3/8 Fe-
male
90
7A Stick 4960 3/8 Female Straight 3/8 Fe-
male
Straight
7B Stick 5580 3/8 Female Straight 3/8 Fe-
male
Straight
IMPORTANT! COUPLINGS SHOULD BE CHECKED AFTER LEAKS AND SHOULD BE RETIGHTENED REGULARLY!
NOTE! DO NOT TIGHTENTHE COUPLINGS MORETHAN NEEDED, IF OVERLOADED,THEY CAN BREAK.
MARKTHE HOSESWITH LABELSTO MAKE IT EASIERTO RECOGNISETHE PRESSURE AND RETURN HOSES.