TEST REPORT

TEST REPORT
Harvester John Deere 1070 D
with harvester head 745
(corresponds to Timberjack 1070 D)
OWNER OF THE TEST CERTIFICATE:
Applicant/distributor:
NUHN GmbH & Co. KG
Jossastraße 56
D – 36272 Niederaula
Internet: www.nuhn.de
MANUFACTURER:
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

Harvester John Deere 1070 D
with harvester head 745
Beurteilung – kurz gefasst
Test item Test results Evaluation
Harvester class 2
Chief application field
Driving performance
70 kW < Engine power < 140 kW
Clearing coniferous forest in easy to difficult terrain, average chest height diameter of
trunks 14-25 cm; maximum trunk diameter 50 cm
Driving speed Relocating 19.5 km/h + +
Off-road capability Off-road capability coefficient: 0.75 o
Transport Overall height per axle 3.6 m + +
Felling and processing
Crane control Electronic transmission system Timbermatic 300
7 programmable operator settings
Crane construction
Net lifting power at maximum reach 0.0 kN, at 4 m reach 16.2 kN
minimum reach 9,7 m, tiltable
Stability Lateral stability when loaded at maximum reach is provided (with water) o
Delimbing Feed speed 3.8 m/s, feed force 11.0 kN +
Measuring and control system Timberjack Timbermatic 300
Ergonomics
Noise L eq = 62 dB(A) + +
Vibration K = 10.9 o
good
good
+ +
o
good
Cab design
Very well arranged display and control elements comfortable and large
cab
+ +
Visibility High convex windscreen, narrow cab stays +
Workspace illumination Good and glare-free illumination +
Arbeitsschutz
DPLF work safety test
Umweltverträglichkeit
good
Ground impact 79 ground impact points -
Operational fluids
Rapid bio-degradable hydraulic fluid, 8 hazardous substances with water hazard
class > 1 unknown
Fuel consumption 11 l/ operating hour (spec. consumption unknown.) n.e.
Leak reduction design
measures
Vacuum pump, quick release coupling for hydraulic fluid filling and
draining; hydraulic fill pump
Emissions unknown - -
o
+ +
Economy
Cost (without wages)
Maintenance (incl. refuelling)
Power
Besonderheiten
According to calculation scheme 86 Euro/ operating hour
(based on 1500 operating hours/year)
approx ¾ hour daily; approx. 1.5 hours weekly
Within power limits for this harvester class
Balanced bogie reduces pitching
+ + = 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, rear bogie reinforced ladder-type chassis frame, struts partially
closed
• Nearly centrally positioned articulated joint and rear interleaving joint with disc brake, different track width front and
rear
• hydrostatic transmission with speed level control, successive 2-step group transmission; temporary front bogie drive
• Test tyres: front: Trelleborg 710/40-22,5 151 A 8
rear: Trelleborg LS-2 620/55-30,5 158 A 8
• Load sensitive hydraulic system with permanent pressure
• Electronic transmission system for hydraulics, crane functions and machine control (Timberjack TMC together with
Timbermatic 300)
• Total weight (incl. water):
• Transport height for flat bed trailer:
for road:
• Width (maximum):
• Turning circle diameter:
15140 kg
3555 mm
3555 mm
2830 mm
14100 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 35%. The application field is also determined by the maximum felling diameter (55 cm) and the
maximum delimbing diameter of 40 cm. The machine is capable of processing long wood as well as hardwood.
Min.
Akt.
Max.
Gross lifting moment (kNm)
72,0
143,0
200,0
0 50 100 150 200 250
Figure 2: Comparison between the current test machine and the minimum and
maximum values from the 12 machines tested to date in the same engine power class
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Engine
Liquid-cooled, 4-stroke, 6 cylinder diesel engine JD 6081 HTJ 04 with direct injection and common-rail water-cooled turbo
charger and air-cooled intercooling, rapeseed oil methyl ester -capable, if fuel complies with fuel quality DIN 51606 or
similar standards
Capacity 6788 cm³
Power Nominal engine speed 1900 1/min 136 kW
max. torque Nominal engine speed 1900 1/min 684 Nm
max. torque Working engine speed 1400 1/min 779 Nm
Torque increase 14 %
Average fuel consumption under working conditions 11 l/MAS
Fuel tank capacity 300 l
rapeseed oil methyl ester or vegetable oil
If fuel complies with manufacturer specifications
capability
Min.
Akt.
Max.
Engine power (kW)
83,0
136,0
130,0
0 20 40 60 80 100 120 140 160
Figure 3: Comparison between the current test machine and the minimum and
maximum values from the 12 machines tested to date in the same engine power class.
Min.
Akt.
Max.
Fuel consumption (l/operating hour)
7,5
11,0
18,0
0 5 10 15 20
Figure 4: Comparison between the current test machine and the minimum and
maximum values from the 12 machines tested to date in the same engine power class.
Work circuit hydraulics
Load sensing hydraulic system with permanent pressure; adjustable swash plate piston pump; system volume 200 l
Hydraulic pump
Bosch Rexroth A 11 VO
Capacity at nominal engine speed (1400 rpm) 0 – 203 l/min
Power output
(installed power)
at 1900 rpm
at 1400 rpm
Hydraulic pressure maximum 28 MPa
Hydraulic tank capacity 170 l
129
95
kW
kW
4/9

Drive circuit hydraulics
Electronically controlled hydrostatic transmission
Hydraulic pump Bosch Rexroth A4VG 90
Capacity
Power output
(installed power)
at nominal engine speed
(1900 rpm)
at 1900 rpm
at 1400 rpm
0 – 171 l/min
Hydraulic pressure maximum 45.0 MPa
Hydraulic engine
Bosch Rexroth A6VM
Absorption volume 0 - 160 cm³/U
128
95
kW
kW
Crane
TJ 180 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 143 Nm
Tilt angle front/back/left/right 16.5 / 16.5 / – / – °
Maximum reach (incl.1-step telescope) 9.7 m
Net lifting power (maximum reach/4m reach) 0 / 16 kN
Telescope pulling power 12.0 kN
Slewing torque (left/right) 35.2 kNm
Turning area (left/right) 226
Required amount of hydraulic fluid * unknown l/min
* Manufacturers declaration
°
Min.
Akt.
Max.
Maximum crane range (m)
8,8
9,7
10,3
0 2 4 6 8 10 12
Figure 5: Comparison between the current test machine and the minimum and
maximum values from the 12 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
745
Overall mass
871 kg
(with/without rotator and swing brake)*
required pump capacity* unknown l/min
Cutting length(available) 550 mm
Chain speed 40 m/s
Saw chain lubricating oil consumption* 0.7* l/ operating hour
Saw chain lubricating oil tank volume 5 l
Feed roller diameter 395/238 mm
Guide length 750 mm
Delimbing diameter 400 mm
max. felling diameter 550 mm
Arm function
2 encircling delimbing knives at top and 1 at the 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 4 hydrostatically driven feed rollers (2 swivelling steel rollers
with elliptical spikes, 2 fixed profile rollers)
4 1 lower movable delimbing knife
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 two angle gauges connected to the
upper delimbing knives
8 Manual chain tensioner
Min.
Akt.
Max.
Maximum felling diameter (cm)
35,0
55,0
60,0
0 10 20 30 40 50 60 70
Figure 7: Comparison between the current test machine and the minimum and
maximum values from the 12 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
Training
Satisfactory, maintenance is generally easy, central lubrication of the boom facilitates crane
maintenance; 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 ¾ hour, für weekly maintenance requires about 1.5 hours
Very well structured, clear and easy-to-read instructions
Profusely illustrated and well-structured; all parts are easily found
Training provided at delivery and additional training is available upon request; 2 days on the
machine and 1 day additional training
Cab
Comfortable ROPS-, FOPS- and OPS – tested, vibration dampened, large safety cab with large front screen; very
organized design
Operator seat Heated highly adjustable operator seat KAB 56with air suspension, swivels through 90°;
electromechanical brakes, tilts laterally through 12°; includes pneumatic lumbar support
Cab size and design
Cab climate
Control elements
Comments / Evaluation
Bright safety cab with plenty of free space; high front screen;
well organized and useful design; good workmanship;
Complies with
standard
Heating and manual climate control with 3-step audible ventilator, recirculation switch
and pre-warming system
useful and well organized arrangement, all elements are well
labelled and easy to reach, some functions can be
distinguished by touch
yes
yes
Levelling
Work field illumination
Visibility
Seat with lateral tilting capability
The large number of halogen working lamps and the 4 crane lamps provide good
illumination of the work field, however when compared to xenon lamps the illumination is
only satisfactory
Large windows in the cab, narrow chassis stays and high front windscreen provide good
visibility of the tree crowns as well as the front wheels; some obstruction by the crane
column, relatively small sun screen provides inadequate glare protection
Noise low Noise level 61.9 dB(A) yes
Vibration K-Wert = 10.9
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, 185 litres; 1 storage space for tools in the front of the machine, 2 storage
spaces in the rear, 1 additional small storage space near the access ladder
a special storage space is provided for the operating manual and first-aid kit; additional
storage space for a small cool-box and personal belongings; storage space for cutting
bars under the cab floor
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Machine costs and calculation basis
Price for tested version 288000 €
Workload operating hours/year 1500 2000 3000 Total service life [operating hours] 10000
Recovery period (years) 6,7 5 3,3 Repair cost factor 1.0
€/
operating
hours
(rounded)
€/
operating
hours
(rounded)
€/
operating
hours
(rounded)
Fuel + lubricants in €/ operating hours 14.30
Recovery 28.80 28.80 28.80 Price for diesel [€/l] 1.0
Repair and maintenance 28.80 28.80 28.80 Interest rate [%] 8.0
Fuel and lubricants 14.30 14.30 14.30 Transport costs [€]/1000 operating
hours
4500
Interest rate 7.70 5.80 3.80 Additional costs [€] 7500
Transport, driving 4.50 4.50 4.50 Technical work productivity::
Others 5.00 3.80 2.50 9.6 cubic meters/operating hour
Machine costs 89.10 86.00 82.70 Within the performance range for harvester class 2
Additional equipment (not tested)
• Alternative harvester head with cutting diameters: H 732 (400 mm), H 742 (470 mm), H 752 (550 mm), H 754
(550 mm)
• Swivelling and self-levelling cab
• Additional crane with different reach: TJ 180 H 83 (8.3 m), TJ 180 H 110 (11.0 m)
• Alternative 600 or 700 tyre size (both axles)
• Xenon lamps
• Fire extinguishing system
• Stump treatment system
• Automatic crane levelling
• Software Timberoffice
• GPS-equipment
• Rear drive acoustic alarm
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 specifications label on the machine includes values for the axle loads at the permitted total weight and the permitted
rear axle load that are lower than the measured values. This information must be amended.
The door contact switch is easily bridged; the design of the switch should be changed to reduce the risk of manipulation.
The handgrips near the cab access door should be altered so that they can be used without the need to change grip
position during ascent.
The access step is too narrow and does not provide sufficient clearance; the step is also mounted too high; the step
should be modified accordingly.
There is a risk of injury due to crushing between the cab floor and the seat inclination adjustment (lateral tilt); this must be
changed.
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.
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The positive poles of the battery are insufficiently protected against shorting. The positive poles must be designed
according to current safety standards.
When working with conveyor belts, high loads may cause damage to the access to the cab; the design of the access
should be modified to prevent such damage.
The manual lacks guidelines concerning the correct use of the machine. These must be included.
The operating manual must include values for whole-body and hand-arm vibration.
Recommendations:
The air filter is difficult to remove when engine hood is completely opened; the positioning of the air filter should be
changed accordingly.
The cab is insufficiently protected against sun – this should be improved.
The space between cab and crane column is not covered – flammable debris can accumulate here. This should be
improved.
The mounting of both swivelling feed engines of the harvester head are inadequate and should be improved.
There is a danger of chafing hydraulic hoses in the harvester head; this should be improved.
The operation of the manual lever steering is not immediately apparent. A more useful construction should be developed.
The following documents were not available:
Current machine documents were not available at the time of the test and should be supplied at a later stage.
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. 4013, 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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