TEST REPORT

TEST REPORT
Harvester Timberjack 1470 D
with harvester head H 762 C
OWNER OF THE TEST CERTIFICATE:
Applicant/distributor:
NUHN GmbH & Co. KG
Jossastraße 56
D – 36272 Niederaula
Internet: www.nuhn.de
MANUFACTURER:
Timberjack Oyj (John Deere)
FIN-33101 Tampere
This publication:
was supported by the Federal Ministry of Consumer Protection, Food and Agriculture and the State
Forest Administrations
Kuratorium für Waldarbeit und Forsttechnik e.V. (KWF)
Spremberger Strasse 1 Telephone: 06078-785-0
D-64823 Groß-Umstadt Telefax: 06078/785-39+50
E-mail: pruefung@kwf-online.de
Internet: http://www.kwf-online.de
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Harvester Timberjack 1470 D
with harvester head H 762 C
Evaluation– Review
Test item Test results Evaluation
Harvester class 3
Chief application field
Driving performance
Engine power > 140 kW
Clearing coniferous forest, average chest height diameter of trunks 25 – 40 cm; maximum
trunk diameter 59 cm
satisfactory
Driving speed Off-road 7.3 km/h; road 19.7 km/h - / + +
Off-road capability Off-road capability coefficient: 0.81 o
Transport Overall transport height on special flat bed trailer > 4.10 m - -
Felling and processing
Crane control
Electronic transmission system Timbermatic 300 TMC,
7 programmable operator settings
good
+ +
Crane construction Net lifting power 178 kNm, 9.7 m reach +
Stability Lateral stability when loaded at maximum reach is provided (with water) o
Delimbing Feed speed 4.2 m/s, feed force 29.5 kN +
Directed felling +
Measuring and control system Timberjack Timbermatic 300 +
Ergonomics
Very good
Noise L eq = 60 dB(A) + +
Vibration K = 5.77 + +
Cab design Very well arranged display and control elements + +
Attenuating forces Very low + +
Visibility High convex windscreen, narrow cab stays +
Workspace illumination On the whole good and glare-free illumination o
Work safety
DPLF work safety test
Environmental safety high minimum tyre pressure 240 – 550 kPa satisfactory
Ground impact 48 ground impact points - -
Operational fluids Rapid bio-degradable hydraulic fluid, no RME capability +
Fuel consumption 13 - 15 l/ operating hr (spec. consumption 194 g/kWh) + + / +
Leak reduction design
measures
Vacuum pump, electric fill pump + +
Emissions Complies with EU guideline 97/68 EG level 2 o
Economy
Cost (without wages)
Maintenance (incl. refuelling)
Power
According to calculation scheme 106 Euro/ operating hour
(based on 1500 operating hours/year)
approx. ½ hour daily; approx. 1 hour weekly
Within power limits for this harvester class
Distinctive features
+ + = very good; + = good; o = satisfactory; - adequate; - - = inadequate (*Manufacturers declaration)
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Short description
Figure 1: Machine sketch and crane area diagram
• Front and rear bogie in closed frame construction
• decentralised articulated joint, interleaving joint with hydraulic interleaving joint brake (disc brake calliper on
disc segment)
• hydrostatic transmission with 1 locked maximum speed level, successive 2-step group transmission (stand
only control, with locked operational brakes) and power divider; permanent front bogie drive at low speeds,
may be switched on at higher speeds
• Test tyres: front: Trelleborg LS2 428 650/60-26,5 20 PR
rear: Nokian TRS-LS2 700/70-34 16 PR
• Multi-circuit hydraulic system for drive and work circuit with joint oil supply for drive and work equipment;
main units: harvester head, brake, steering, hydrostat, drive control, crane and cab control and actuators
• Electronic transmission system for crane functions and machine control (Timberjack TMC together with
Timbermatic 300)
• Total weight (incl. water):
• Transport height for flat bed trailer:
for road:
23840 kg
3850 mm
4235 mm
• Width (maximum):
• Turning circle diameter:
2984 mm
14300 mm
• Chief application field
Depending on the conditions of the terrain (micro-relief, obstructions, snow) the machine cannot be operated
above a gradient of about 30%. The application field is also determined by the maximum felling diameter (59
cm) and the maximum delimbing diameter of 45 cm. The machine is capable of processing long wood as
well as hardwood.
Min.
Akt.
Max.
Gross lifting moment (kNm)
130,0
178,0
220,0
0 50 100 150 200 250
Figure 2: Comparison between the current test machine and the minimum and
maximum values from the 8 machines tested to date in the same engine power class.
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Engine
Liquid-cooled 6 cylinder diesel engine JD 6081 HTJ 04 with direct injection and common-rail water-cooled turbo
charger and air-cooled intercooling
Capacity 8100 cm³
Power Nominal engine speed 2200 1/min 180 kW
max. torque Nominal engine speed 2200 1/min 810 Nm
max. torque working engine speed 1500 1/min 1095 Nm
Torque increase 35.0 %
Average fuel consumption under working conditions 14 l/operating
hour
Fuel tank capacity 480 l
rapeseed oil methyl ester or vegetable oil capability
no
Engine power (kW)
Min.
145,0
Akt.
180,0
Max.
181,0
0 50 100 150 200
Figure 3: Comparison between the current test machine and the minimum and
maximum values from the 8 machines tested to date in the same engine power class.
Min.
Fuel consumption (l/operating hour)
Akt.
Max.
11,3
14,0
18,0
0 5 10 15 20
Figure 4: Comparison between the current test machine and the minimum and
maximum values from the 8 machines tested to date in the same engine power class.
Work circuit hydraulics
Load sensing hydraulic system with permanent pressure; joint oil supply for work and drive circuit and an adjustable
piston pump
Hydraulic pump
Mannesmann Rexroth A 11 VO
Capacity At nominal engine speed (1600 rpm) 0 – 304 l/min
Power output
(installed power)
at 2200 rpm
at 1600 rpm
195
142
kW
kW
Hydraulic pressure maximum 28 MPa
Hydraulic tank capacity 300 l
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Drive circuit hydraulics
Electronically controlled hydrostatic transmission
Hydraulic pump
Capacity
Power output
(installed power)
Rexroth AA4VG125
At nominal engine speed
(2200 1/min)
at 2200 U/min
at 1600 U/min
0 – 275 l/min
Hydraulic pressure maximum 45,0 MPa
Hydraulic engine
Bosch Rexroth A6VM
Absorption volume 0 - 160 cm³/U
206
150
kW
kW
Crane
TJ 210 H 97; mounted on front bogie; slewing mechanism centrally mounted between front axle; slewing mechanism
driven by 4 pressure cylinders and 2 racks; parallel crane with boom and jib with a very low column and single-step
telescope
Gross lifting torque 178 Nm
Tilt angle front/back/left/right 29 / 11 / – / – °
Maximum reach (incl.1-step telescope) 9.7 m
Net lifting power (maximum reach/4m reach) 1.8 / 36 kN
Telescope pulling power 26.0 kN
Slewing torque (left/right) 57.6 kNm
Turning area (left/right) 219
Required amount of hydraulic fluid * n.a. l/min
*Manufacturers declaration
°
Min.
Akt.
Max.
Maximum crane reach (m)
9,3
9,7
10,1
0 2 4 6 8 10 12
Figure 5: Comparison between the current test machine and the minimum and
maximum values from the 8 machines tested to date in the same engine power class.
Measuring system evaluated according to the KWF-specification sheet
Timbermatic 300
Hardware
Display
Input device
Colour VGA graphic display in work direction, mounted directly in front of operator (may obstruct
view downhill), manual brightness and contrast control, excellent readability
Keypad near joysticks (special keys for species and qualities), PC keyboard slides under
monitor, trackball for controlling cursor; well proportioned and arranged for easy operation
Printer Ink jet printer with single sheet printout (DIN A4)
Control prints
Data completeness
Clarity of data labelling
HKS-conformity
Requirements of KWF-specification sheet
Operability and performance of system
Calibration and control of electronic callipers/manual
Precision of measurement
Measurement stability
Overall evaluation:
5/9
yes
satisfactory
fulfilled
Very good/satisfactory
Very good
Very good
good

Harvester head
H 762 C
Overall mass
1327 / 1270 kg
(with/without rotator and swing brake)*
required pump capacity* 220 l/min
Cutting length(available) 700 mm
Chain speed 40 m/s
Saw chain lubricating oil consumption* n.a. l/operating hour
Saw chain lubricating oil tank volume 5 l
Feed roller diameter 480 mm
Guide length 1210 mm
Delimbing diameter 450 mm
max. felling diameter 590 mm
Arm function
2 encircling delimbing knives at top and bottom of the unit; supported by feed rollers
in necessary
* Manufacturers declaration
1 1 fixed top v-shaped delimbing knife
2 2 top, encircling, moving delimbing knives attached to basic
frame, diameter-dependant contact pressure
3 2 swivelling hydrostatically driven feed rollers (steel rollers with
elliptical spikes)
4 2 lower movable delimbing knives
5 Felling unit with electro-hydraulically operated and driven
chainsaw, diameter-dependant cut control
Figure 6 harvester head
6 Spring-loaded length measuring wheel
7 Diameter measurement by single angle gauge connected to
control bar of the swivelling feed rollers (s. 4)
8 Hydraulic chain tensioner
Min.
Akt.
Max.
Maximum felling diameter (cm)
45,0
59,0
65,0
0 10 20 30 40 50 60 70
Figure 7: Comparison between the current test machine and the minimum and
maximum values from the 8 machines tested to date in the same engine power class.
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Spare parts supply, manuals and service
good
Maintenance effort
Maintenance scope
Operator manual
Spare parts list
Satisfactory (checking engine oil level very uncomfortable, 2 people are required to close floor
pan, there is no ladder or platform for changing lamps in the roof lighting array; except in
these cases maintenance is easy, central lubrication of the boom facilitates crane
maintenance; hydraulic tank drainage hose is difficult to locate); front lower maintenance
covers must be opened with utmost caution
According to schedule and need; time required for daily maintenance (incl. operational fluid
refilling) is about ½ hour, weekly maintenance requires about 1 hour
Very well structured, clear and easy-to-read instructions
Profusely illustrated and well-structured; all parts are easily found
Training Training provided at delivery and additional training is available upon request; 2 days and 1
day additional training
Cab
Comfortable ROPS-, FOPS- and OPS – tested, vibration dampened, large safety cab, capable of swivelling sideways
through 60°; large front screen; very organized design and good workmanship
Operator seat
Grammer Actimo XXL heated comfortable swivelling seat with air suspension,
pneumatic brakes and longitudinal and transverse suspension; provided with a
pneumatic lumbar support
Comments / Evaluation
Complies with
standard
Cab size and design
Spacious cab with plenty of free space; ergonomic bright
workplace; good workmanship; high front screen provides
excellent upward visibility; good entrance
yes
Cab climate
Efficient ventilation, heating and cooling; ventilator relatively loud at level 2 and above
Control elements
useful and well organized arrangement, all elements are well
labelled and easy to reach
yes
Levelling Front and rear 12°, left and right 17°
Work field illumination
Visibility
Overall good illumination of all work fields, especially of the harvester head, however,
illumination of the area to the side of the crane column is less than adequate; there is no
is no safe ladder or platform provided for maintenance work on the roof lighting array
Large windows in the cab, which swivels with the crane, and a raised seating position
provide good visibility; front visibility is obstructed by the crane cylinder and the display
(blind area angle due to crane column 17.6°). High and convex front window provides
excellent upward visibility (of the tree crowns)
Noise low Noise level 60.0 dB(A) yes
Vibration K eq = 5.8
According to current state of knowledge, exposing the operator to these vibration levels
for a period of 8 hours (shift) is not expected to have detrimental health effects.
Storage space on the
machine
Storage space in the cab
Adequate, 201 litres; 1 large volume storage space for tools and oil-binding materials in
the front of the machine, 3 narrow but large spaces (somewhat inconveniently shaped)
for hoses located in the frame and beneath the cab; storage space for cutting bars
under the cab floor; usability of the front main storage space is good; other storage
spaces can only be used for hoses and cutting bars; there is no exterior storage space
for saw chains
The cab contains many, very good lockable storage spaces; a special storage space is
provided for the operating manual and first-aid kit
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Machine costs and calculation basis
Price for tested version 365000 €
Workload operating hours/year 1200 1500 2000 Total service life [operating hours] 10000
Recovery period (years) 10 8 6 Repair cost factor 1.0
€/
operating
hours
(rounded)
€
/operating
hours
(rounded)
€/
operating
hours
(rounded)
Fuel + lubricants in €/ operating hours 18.20
Recovery 36.50 36.50 36.50 Price for diesel [€/l] 1.0
Repair and maintenance 36.50 36.50 36.50 Interest rate [%] 8,0
Fuel and lubricants 18.20 18.20 18.20 Transport costs [€]/1000 operating
hours
4500
Interest rate 12.20 9.70 7.30 Additional costs [€] 7500
Transport, driving 4.50 4.50 4.50 Technical work productivity:
Others 6.30 5.00 3.80 13.5 cubic meters/operating hour
Machine costs 113.50 109.70 106.10 Within the performance range for harvester class 3
Additional equipment (not tested)
none
Test
Note: Since this machine is no longer in production, the following additional requirements
cannot be integrated by the manufacturer. However the manufacturer has incorporated the
requirements and recommendations into the design of the follow-up series of the machine
Remaining requirements:
The values for axle loads, permitted total weight as well as maximum permitted axle loads during operation
contained in the TÜV report must be aligned with the measured values.
The machine must be provided with a hose list to enable professional hydraulic service engineers to construct
the necessary hoses for the machine.
The metal grid, which forms the maintenance platform, becomes soiled with wood chippings and soil during
operation. This grid is difficult to clean.
There is no suitable ladder and handgrips or a non-slip platform provided for changing the lamps of the cab roof
lighting array.
All areas where hydraulic hoses chafe along the boom and jib of the crane and the decentralised articulated joint
should be removed.
Machine nominal power should be given in kW.
The risk of losing the grub screw of the steering lever must be removed.
The lower front and lower middle maintenance covers have no hinges. The opening width is unrestricted.
Opening the covers can be very dangerous. The covers must be designed according to current applicable safety
requirements.
Instructions for driving on frozen bodies of water must be removed from the operating manual – alternatively it
should contain a warning prohibiting the operation of the vehicle on frozen bodies of water.
All entries not translated into German must be corrected.
The instructions concerning the response to touching electrical power lines do not correspond to current accident
prevention guidelines of the agricultural workers association (VSG 1.4, § 4) among others.
The operating manual must include values for noise levels, whole-body and hand-arm vibration.
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There is no information concerning the choice of hydraulic fluids in the operating manual.
Some maintenance points are only inadequately described in the instruction manual – this should be amended
Recommendations:
The crane tilt angle should be increased.
The illumination of the lateral and rear work field should be improved. The switches for any necessary additional
lamps (in this case from the motor hood to the back) should be in the cab.
All maintenance instructions should be summarised in a maintenance and lubrication plan.
Possibilities for reducing transport height should be considered
Controlling oil level and filling engine oil requires the operator to adopt an awkward posture – this should be
improved.
The steering properties of the machine on the road should be improved.
In some instances, the printouts are difficult to understand because of the lack of clear labelling
The following documents were not available:
Proof of compliance with regulations concerning pressurized storage tanks (e.g. manufacturer certificate
according to TRB 521/522)
Certification concerning the flammability of the cab interior according to ISO 3795
Test institute
Kuratorium für Waldarbeit und Forsttechnik, Groß-Umstadt
Authors
Dr. Günther Weise, Lars Nick, Dr. Andreas Forbrig, KWF, Groß-Umstadt
KWF-Utility-Test
Test no. 3683, valid until June 30, 2014
According to the test regulations, the applicant is entitled to display the test mark on machines of this
type and to use the certification for advertising purposes.
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