nokka 2051P User manual

2051P, 2651P, 2951P, 2962P, 3467P, 3767P
3970P, 4772P, 4872P, 4780P, 6700P
GRAPPLE LOADER
Installation, operation and
maintenance manual
NOKKA OY
Forest Line Forest Line
PL 4, 40951 Muurame FIN-40950 Muurame, Finland
Puhelin 044 7624 510 Tel. [phone]
Telefax [phone] Fax [phone]
0351600

CONTENTS
Page
To the owner...........................................................................................................1
Declaration of compliance with EC directives..........................................................1
Labels and signs............................................................................................... 2 - 3
1. Before use ................................................................................................... 4 - 6
Measurement units.........................................................................................4
Directions........................................................................................................4
Serial number .................................................................................................4
Safety instructions .................................................................................... 4 - 5
Noise prevention.............................................................................................6
Minimum distances from live electric conductors............................................6
Driving on a road.............................................................................................6
Inspection during use......................................................................................6
Structural changes..........................................................................................6
2. Operating the machine................................................................................ 7 - 20
Properties of the machine in brief...................................................................7
Technical specifications............................................................................ 7 - 9
Maximum lifting table............................................................................ 10 - 15
Preparing for use .................................................................................. 16 - 17
Inspection of assembly.................................................................................18
Working instructions .....................................................................................19
Transport position.........................................................................................20
3. Maintenance.............................................................................................. 21 - 26
Safety during maintenance work...................................................................21
General maintenance instructions ................................................................21
Lubrication instructions......................................................................... 21 - 22
Adjusting the support bearing of gear rack...................................................22
Powerless loader motions.............................................................................22
Hydraulics.....................................................................................................23
Changing hydraulic hose ..............................................................................23
Adjusting the telescope chains on Nokka 4780............................................24
How to order spare parts ..............................................................................25
Serial number ...............................................................................................26
Storage.........................................................................................................26
Disposal of the machine ...............................................................................26
Warranty policy.............................................................................................27
Examples of calculating for stability determination ................................ 28- 34

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.
Yours faithfully,
Nokka Oy
EC DECLARATION OF CONFORMITY
Nokka Oy
PO Box 4
40951 MUURAME, FINLAND
The compiler of this technical document:
Petteri Nokkala
Teollisuustie 4
40951 MUURAME, FINLAND
guarantees that the loaders Nokka 2051P, Nokka 2651P, Nokka 2951P, Nokka 2962P,
Nokka 3467P, Nokka 3767P, Nokka 3970P, Nokka 4772P, Nokka 4782P Nokka 4780P
and Nokka 6700P 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 2051 P no 100
Nokka 2651 P no 100
Nokka 2951P no 100
Nokka 2962 P no 100
Nokka 3467 P no 100
Nokka 3767 P no 100
Nokka 3970 P no 100
Nokka 4772 P no 100
Nokka 4872 P no 100
Nokka 4780 P no 100
Nokka 6700 P no 100
Muurame, Finland 15 augusti 2014
_________________________
Petteri Nokkala
Managing Director
1

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. Identification plate
HK 2051P 3TR7888 HK 2651P 3TR7901 HK 2951P 3TR7899
HK 2962P 3TR7889 HK 3467P 3TR7890
HK 3767P 3TR7891 HK 3970P 3TR7892 HK 4772P 3TR7893
HK 4872P 3TR7894 HK 4780P 3TR7895 HK 6700P 3TR7900
2

2. Loadin label HK 2051P, HK 2651P, HK 2951P, HK 2962P, HK 3467P, HK 3767P,
HK 3970P, HK 4772P, HK 7872P, HK 4780P, HK 6700P
3TR7898
3. Warning label 3TR0640 4. Manual label 3TR1320 5. Lifring point label 3TR0510
6. Model label:
Nokka-label 3TR7729
7. Motion chart label: 3TR0740
8. Danger zone label: 3TR0890 2 pc
9. Grab label: Nokka 16 3TR7680, Nokka 20 3TR768
3

1. BEFORE USE
MEASUREMENT UNITS
This Installation and Operating Manual utilises measurement units according to the
international SI measurement system.
DIRECTIONS
In this Installation and Operating Manual, the right and left side and front and rear end
of the machine are oriented from the driver perspective.
SERIAL NUMBER
Write down the serial number of your machine in the space reserved on page 26 of this
booklet. Be prepared to give the type and serial number of your machine in all enquiries
and orders relating to the machine.
SAFETY INSTRUCTIONS
NOTE!
The safety instructions in the booklet are marked with this sign. Read these instructions
with particular care.
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.
4

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.
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.
5

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 oii.
MINIMUM DISTANCES FROM LIVE ELECTRIC CONDUCTORS
Nominal Minimum distance Minimum distance
voltage from an uninsulated from an insulated
kV conductor, m conductor, m
<0,5 2 0,5
0,5 - 45 3 1,5
>110 5
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.
INSPECTIONS DURING USE
To ensure trouble-free operation, periodic inspections must be carried out. After the first
hour of use, inspect all hoses, fittings and rams for oil leaks. Perform these inspections
at regular intervals. The loader equipped with any accessory or protective guard not
presented in this booklet, is not included in the factory´s conventional delivery.
STRUCTURAL CHANGES
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.
6

2. OPERATING THE MACHINE
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.
TECHNICAL SPECIFICATIONS:
NOKKA 2051 P
Weight of the loader ready for work with log grab.............................480 kg
Net lifting torque............................................................................17.5 kNm
Gross lifting torque...........................................................................20 kNm
Swing torque ......................................................................................6 kNm
Boom turning angle...............................................................................400o
Maximum reach...................................................................................5,1 m
Maximum working pressure...........................................................18.8 MPa
Minimum hydraulic pump capacity ................................................. 40 l/min
NOKKA 2651 P
Weight of the loader ready for work with log grab.............................600 kg
Net lifting torque............................................................................17.5 kNm
Gross lifting torque...........................................................................26 kNm
Swing torque ......................................................................................6 kNm
Boom turning angle...............................................................................400o
Maximum reach...................................................................................5,1 m
Maximum working pressure...........................................................18.8 MPa
Minimum hydraulic pump capacity ................................................. 40 l/min
NOKKA 2951 P
Weight of the loader ready for work with log grab.............................650 kg
Net lifting torque............................................................................23,5 kNm
Gross lifting torque...........................................................................29 kNm
Swing torque ......................................................................................7 kNm
Boom turning angle...............................................................................400o
Maximum reach...................................................................................5,1 m
Maximum working pressure...........................................................18.2 MPa
Minimum hydraulic pump capacity ................................................. 40 l/min
7

NOKKA 2962 P
Weight of the loader ready for work with log grab.............................730 kg
Net lifting torque............................................................................23,5 kNm
Gross lifting torque...........................................................................29 kNm
Swing torque ......................................................................................7 kNm
Boom turning angle...............................................................................400o
Maximum reach...................................................................................6,2 m
Extension stroke....................................................................................1,38
Maximum working pressure...........................................................18,2 MPa
Minimum hydraulic pump capacity ................................................. 40 l/min
NOKKA 3467 P
Weight of the loader ready for work with log grab.............................795 kg
Net lifting torque............................................................................27,5 kNm
Gross lifting torque...........................................................................34 kNm
Swing torque ...................................................................................7,5 kNm
Boom turning angle...............................................................................400o
Maximum reach...................................................................................6,7 m
Extension stroke................................................................................1,38 m
Maximum working pressure..............................................................17 MPa
Minimum hydraulic pump capacity ................................................. 40 l/min
NOKKA 3767 P
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...............................................................................400o
Maximum reach with extension...........................................................6,7 m
Extension stroke................................................................................1.38 m
Maximum working pressure...........................................................18,4 MPa
Minimum hydraulic pump capacity ................................................. 50 l/min
NOKKA 3970
Weight of the loader ready for work with log grab.............................910 kg
Net lifting torque...............................................................................32 kNm
Gross lifting torque...........................................................................39 kNm
Swing torque ...................................................................................7,1 kNm
Boom turning angle...............................................................................400o
Maximum reach...................................................................................7,0 m
Extension stroke................................................................................1,38 m
Maximum working pressure..............................................................15 MPa
Minimum hydraulic pump capacity ................................................. 50 l/min
8