nokka FOREST Series User manual

0353750
Nokka Oy
Teollisuustie 4
P.O. Box 4, FIN-40950 Muurame, Finland
Tel. [phone]
Tex. [phone] www.nokka.fi
1042P, 3767P LT, 3767P HT, 4872P
4780P, 4970, 4976, 5269, 5282, 6084
GRAPPLE LOADER
Installation, operation and
maintenance manual

CONTENTS
1TO THE OWNER OF THE NOKKA LOADER ............................................................................... 1
2EC DECLARATION OF CONFORMITY........................................................................................ 1
3BEFORE COMMISSIONING ...................................................................................................... 2
3.1 MEASUREMENT UNITS .................................................................................................... 2
3.2 DIRECTIONS ..................................................................................................................... 2
3.3 SERIAL NUMBER .............................................................................................................. 2
3.4 LABELS AND SIGNS........................................................................................................... 3
3.5 SAFETY INSTRUCTIONS .................................................................................................... 4
3.6 NOISE PREVENTION ......................................................................................................... 5
3.7 MINIMUM DISTANCES FROM LIVE ELECTRIC CONDUCTORS .......................................... 5
3.8 DRIVING ON A ROAD ....................................................................................................... 6
3.9 STRUCTURAL CHANGER................................................................................................... 6
4OPERATING THE MACHINE ..................................................................................................... 7
4.1 PROPERTIES OF THE MACHINE IN BRIEF ......................................................................... 7
4.2 TECHNICAL SPECIFICATIONS............................................................................................ 7
4.3 MAXIMUN LIFTING TABLE ............................................................................................. 11
4.4 PREPEARING FOR USE.................................................................................................... 16
4.5 SCREW TIGHTENING MOMENT NM, METRIC ISO STANDARD ...................................... 18
4.6 INSPECTION OF ASSEMBLY ............................................................................................ 19
4.7 INSPECTIONS DURING USE ............................................................................................ 20
4.8 TRANSPORT POSITION................................................................................................... 20
4.9 WORKING INSTRUCTIONS ............................................................................................. 21
5MAINTENANCE...................................................................................................................... 22
5.1SAFETY IN MAINTENANCE WORK.................................................................................. 22
5.2 GENERAL MAINTENACE INSTRUCTIONS........................................................................ 22
5.3 LUBRICATION ................................................................................................................. 23
5.4 ADJUSTING THE SUPPORT BEARING OF THE GEAR RACK ............................................. 23
5.5POWERLESS LOADER MOTIONS .................................................................................... 24
5.6 HYDRAULICS................................................................................................................... 24
5.7 ADJUSTING THE TELESCOPE CHAINS ............................................................................. 25
5.8 STORAGE........................................................................................................................ 26
5.9 DISPOSAL OF THE MACHINE.......................................................................................... 26
6WARRANTY POLICY ............................................................................................................... 27

7HOW TO ORDER SPARE PARTS.............................................................................................. 28
8SERIAL NUMBER.................................................................................................................... 28

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1 TO THE OWNER OF THE NOKKA LOADER
Congratulations on choosing one of the finest machines available! If you follow the instructions
contained in this booklet, the loader will provide you with a long and trouble-free service.
Familiarize yourself with this booklet before you start working with the loader. If there are any
problems, please contact your dealer or the manufacturer.
Your faintfully,
Nokka Oy
2 EC DECLARATION OF CONFORMITY
Nokka Oy
P.O. BOX 4, Teollisuustie 4
40950 MUURAME FINLAND
The compiler of this technical document:
Hanne Äyräväinen
P.O. BOX 4, Teollisuustie 4
40950 MUURAME FINLANS
guarantees that the Nokka loaders on the market is in accordance with the Machinery Directive
2006/42/EC and national regulations which have been adapted to meet the directive’s
requirements.
This guarantee applies to machines starting from serial number:
Nokka 1042 P nro. 100 Nokka 3767 P LT nro. 100
Nokka 3767 P HT nro. 100 Nokka 4872 P nro. 100
Nokka 4780 P nro. 100 Nokka 4970 nro. 100
Nokka 4976 nro. 100 Nokka 5269 nro. 100
Nokka 5282 nro. 100 Nokka 6084 nro. 100
Muurame, Finland 1 december 2015
________________________
Hanne Äyräväinen
Managing Director

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3 BEFORE COMMISSIONING
NOTE! The safety instructions in the booklet are marked with this sign. Read these
instructions with particular care.
3.1 MEASUREMENT UNITS
The Installation and Operating Manual, measurement units according to the international SI
measurement system are used.
3.2 DIRECTIONS
In this Installation and Operating Manual, right and left side and front and rear end of the
machine are to be understood in reference to the driving direction.
3.3 SERIAL NUMBER
Write down the serial number of your machine in the space reserved for it end of the booklet.
Be prepared to give the type and serial number of your machine in all enquiries and orders
relating to the machine.
Model: Machine plates number:
Nokka HK 1042P 3TR7965
Nokka HK 3767P LT/HT 3TR7955
Nokka HK 4872P 3TR7958
Nokka HK 4780P 3TR7959
Nokka HK 4970 3TR7960
Nokka HK 4976 3TR7961
Nokka HK 5269 3TR7962
Nokka HK 5282 3TR7963
Nokka HK 6084 3TR7964

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3.4 LABELS AND SIGNS
These labels and signs must be found on the loader. Missing ones must be renewed
immediately. Identification plate, the load and the model labels according to the loader.
1. Machine plate 2. Loadin label 3TR8000 3. Warning label 3TR0640
4. Manual label 3TR1230 5. Lifting point label 3TR0510 6. Model label
7. Motion chart label 3TR0740 8. Danger zone label
3TR0890
9. Grab label
Nokka 08, Nokka 16, Nokka 20, Nokka 23

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3.5 SAFETY INSTRUCTIONS
1. Familiarize yourself with the operation manual and carefully read the safety instructions
and all labels on the machine. If the machine is to be used by another party, make sure
that the user reads the operating and safety instructions before handing over the machine.
2. The operator must be at least 18 years old and in good health.
3. The operator must not be under the influence of any intoxicating substances or
medications.
4. Remove all loose parts from the machine which do not belong.
5. Fit the protective guards in place and ensure that they are always in place during operation
of the machine.
6. Get acquainted with all controls and instruments.
7. When the loader is to be serviced, cleaned or adjusted or when accessories are to be
mounted on it, place the booms of the loader in a suitable position and secure them so
that they cannot move. Turn off the tractor and set the parking brake.
8. Do not make any structural alterations in the loader that might compromise its safety
performance. It is forbidden to weld booms.
9. Do not use the machine for purposes for which it is not intended.
10. The danger area covers an area of 20 meters and in falling head use, 50 meters. Also use
extreme caution when using accessories, taking care that there is nobody in the danger
are. Always pay special attention if children are present.
11. Never leave the loader unattended (with or without a load) with the booms extended.
12. Do not wear loose or torn clothes when operating the loader.
13. Never go under the booms or load. Operate the loader only from the cab of the tractor.
14. Observe safety distances from live electric conductors when using the machine.
15. After the first hour of operation, check all screws and nuts for tightness. Perform this
inspection on a regular basis during operation.
16. Inspect the hydraulic system for any leakages during operation and repair any faults
immediately. In concern for the environment, do not let any oil leak out.
17. When mounting the valve block please note that pressurized hydraulic hoses should not be
placed in the cab without any form of protection.
18. Use only original spare parts.

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19. The controls of the loader have to be placed into the cab, which fulfils the requirements.
20. It is forbidden to loosen support legs from the transport package before the loader is fitted
to the lower arms of the tractor - the loader will otherwise lose its stability. Always use
support legs during loader operation. Before starting work, be sure that the combination
is stable against tipping. Calculation instructions for determination of stability can be
found in the end of this booklet.
21. Use only original accessories.
3.6 NOISE PREVENTION
Continuous exposure to noise may cause hearing problems and even a loss of hearing. Noise
level in the workplace depends on noise insulation and the specific way the valves are
mounted. Use suitable ear protectors or ear plugs that have a sufficient noise-dampening
capacity.
When servicing the hydraulic system, use gloves to protect your skin against oil.
3.7 MINIMUM DISTANCES FROM LIVE ELECTRIC CONDUCTORS
Nominal voltage
(kV)
Minimum distance from an
uninsulated conductor
(m)
Minimum distance from an
insulated conductor
(m)
< 0,5
2
0.5
0,5 - 45
3
1.5
> 110
5

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3.8 DRIVING ON A ROAD
On public roads, always keep equipment required by traffic laws mounted and the lights turned
on. Also keep the tractor's safety triangle in place.
Keep the reflectors and lamps clean.
Remember that the weight of the loader can lead to a reduction of steering control.
3.9 STRUCTURAL CHANGER
Do not make any structural changes in the machine without the manufacturer's consent to
avoid reducing its working capacity or safety or shortening its operational life.

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4 OPERATING THE MACHINE
4.1 PROPERTIES OF THE MACHINE IN BRIEF
Nokka loaders are designed for wood loading in farm forestry work. When equipped with
accessories manufactured by Nokka Oy, the loaders are suitable for loading of ground, feed,
solid dung, round bales and corresponding materials used in farming.
The loader is not designed for load lifting where co-operators are working near the load. Use of
the machine for any other purpose without the manufacturer's permission is forbidden and
entails invalidation of the guarantee.
4.2 TECHNICAL SPECIFICATIONS
NOKKA LOADER HK 1042P
Weight of the loader ready for work with log grab ........................................................... 250 kg
Net lifting torque.............................................................................................................. 10 kNm
Gross lifting torque.......................................................................................................... 7,6 kNm
Swing torque ................................................................................................................... 2,1 kNm
Boom turning angle............................................................................................................... 220°
Maximum reach ...................................................................................................................4,2 m
Extension stroke...................................................................................................................0,8 m
Maximum working pressure ......................................................................................... 17,5 MPa
Minimum hydraulic pump capacity .................................................................................. 9 l/min
NOKKA LOADER HK 3767P LT
Weight of the loader ready for work with log grab ........................................................... 795 kg
Net lifting torque ............................................................................................................ 30 kNm
Gross lifting torque........................................................................................................... 37 kNm
Swing torque ................................................................................................................... 8,7 kNm
Boom turning angle............................................................................................................... 400°
Maximum reach ...................................................................................................................6,7 m
Extension stroke.................................................................................................................1,38 m
Maximum working pressure ......................................................................................... 18,4 MPa
Minimum hydraulic pump capacity ................................................................................ 50 l/min

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NOKKA LOADER HK 3767P HT
Weight of the loader ready for work with log grab ........................................................... 810 kg
Net lifting torque.............................................................................................................. 30 kNm
Gross lifting torque........................................................................................................... 37 kNm
Swing torque ................................................................................................................... 8,7 kNm
Boom turning angle............................................................................................................... 400°
Maximum reach ...................................................................................................................6,7 m
Extension stroke.................................................................................................................1,38 m
Maximum working pressure ......................................................................................... 18,4 MPa
Minimum hydraulic pump capacity ................................................................................ 50 l/min
NOKKA LOADER HK 4872P
Weight of the loader ready for work with log grab ........................................................... 965 kg
Net lifting torque........................................................................................................... 36,4 kNm
Gross lifting torque........................................................................................................... 48 kNm
Swing torque .................................................................................................................... 13 kNm
Boom turning angle............................................................................................................... 400°
Maximum reach ...................................................................................................................7,2 m
Extension stroke...................................................................................................................1,6 m
Maximum working pressure ............................................................................................ 17 MPa
Minimum hydraulic pump capacity ................................................................................ 50 l/min
NOKKA LOADER HK 4780P
Weight of the loader ready for work with log grab ......................................................... 1077 kg
Net lifting torque ......................................................................................................... 35,5 kNm
Gross lifting torque........................................................................................................... 47 kNm
Swing torque .................................................................................................................... 13 kNm
Boom turning angle............................................................................................................... 400°
Maximum reach ...................................................................................................................8,0 m
Extension stroke.............................................................................................................2X1,25 m
Maximum working pressure ......................................................................................... 17,2 MPa
Minimum hydraulic pump capacity ................................................................................ 50 l/min

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NOKKA LOADER HK 4970
Weight of the loader ready for work with log grab ......................................................... 1070 kg
Net lifting torque........................................................................................................... 38,6 kNm
Gross lifting torque........................................................................................................... 49 kNm
Swing torque .................................................................................................................... 13 kNm
Boom turning angle............................................................................................................... 400°
Maximum reach ...................................................................................................................7,0 m
Extension stroke...................................................................................................................1,6 m
Maximum working pressure ......................................................................................... 17,5 MPa
Minimum hydraulic pump capacity ................................................................................ 50 l/min
NOKKA LOADER HK 4976
Weight of the loader ready for work with log grab ......................................................... 1130 kg
Net lifting torque........................................................................................................... 34,2 kNm
Gross lifting torque........................................................................................................... 49 kNm
Swing torque .................................................................................................................... 13 kNm
Boom turning angle............................................................................................................... 400°
Maximum reach ...................................................................................................................7,6 m
Extension stroke.............................................................................................................2X1,25 m
Maximum working pressure ......................................................................................... 17,5 MPa
Minimum hydraulic pump capacity ................................................................................ 50 l/min
NOKKA LOADER HK 5269
Weight of the loader ready for work with log grab ......................................................... 1120 kg
Net lifting torque........................................................................................................... 42,1 kNm
Gross lifting torque........................................................................................................... 52 kNm
Swing torque .................................................................................................................... 15 kNm
Boom turning angle............................................................................................................... 400°
Maximum reach ...................................................................................................................6,9 m
Extension stroke...................................................................................................................1,6 m
Maximum working pressure ......................................................................................... 16,0 MPa
Minimum hydraulic pump capacity ................................................................................ 60 l/min

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NOKKA LOADER HK 5282
Weight of the loader ready for work with log grab ......................................................... 1200 kg
Net lifting torque........................................................................................................... 39,1 kNm
Gross lifting torque........................................................................................................... 52 kNm
Swing torque .................................................................................................................... 15 kNm
Boom turning angle............................................................................................................... 400°
Maximum reach ...................................................................................................................8,2 m
Extension stroke.............................................................................................................2X1,59 m
Maximum working pressure ......................................................................................... 16,0 MPa
Minimum hydraulic pump capacity ................................................................................ 60 l/min
NOKKA LOADER HK 6084
Weight of the loader ready for work with log grab ......................................................... 1480 kg
Net lifting torque........................................................................................................... 45,9 kNm
Gross lifting torque........................................................................................................... 60 kNm
Swing torque ................................................................................................................. 15,5 kNm
Boom turning angle............................................................................................................... 400°
Maximum reach ...................................................................................................................8,4 m
Extension stroke.............................................................................................................2X1,65 m
Maximum working pressure ......................................................................................... 17,4 MPa
Minimum hydraulic pump capacity ................................................................................ 70 l/min

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4.3 MAXIMUN LIFTING TABLE
Maximum lifting capacity of models Nokka loaders without the rotator and the log grab. Lifting
capacities are measured according to different boom positions. Lifting capacity is
approximately 145 kg lower when operating with the rotator and the log grab (60 kg to Nokka
HK 1042P).

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4.4 PREPEARING FOR USE
The loader will be supplied to retail dealer and further to the customer on a
transport stand or mounted on the loader mounting pad of the forest trailer.
Unpacking from the stand and preparing the loader for work is done in the following
way:
1. Lift the loader onto a flat base. Lift the loader a little bit up with a lifter, with which the
loader can be handled securely and cut the fastenings. Do not go under the loader, and be
careful against swinging and falling of the loader.
2. Lift the loader either on the loader mounting pad or on the four point frame mounted on
the tractor frame, and fasten the loader with bolts and nuts (M24). If the loader is installed
on the loader mounting pad having an oil tank, oil resistant silicon will be put between the
flanges to avoid leakings. Don´t allow silicon to run into the oil tank. If the loader is
fastened with the forest trailer and also the telescopic support legs are mounted, the
upper fastener of the support legs must be mounted under the fastening bolts of the
loader on the back side of the loader at the same time. Tightening moment is 660 +/- 70
Nm.
3. Mount the valve block with the tractor so that the control levers move without any
hindrance and the valves can be easily controlled. Fasten the valve block enough firm in
order to avoid movement and falling. It is not allowed to have unprotected pressurised
hydraulic pipes in the control cabin.