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Forestry

TN785D

Swing machines

  • Horsepower (HP) 390 HP @ 2,100 rpm
  • Horsepower (kW) 291 kW @ 2,100 rpm
  • Operating weight (kg) 52 844
  • Operating weight (lbs) 116,500
  • Swing torque (ft-lbs) 150,700
  • Swing torque (kg-m) 20 835

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Purpose-built and powerful for productive swing work in high demand applications

The TimberPro TN785D swing machine was developed to handle various length timber in millyard applications with ease. It started with the proven TimberPro design and components, and then added power, lift, swing and reach capacities. The result is the largest, most powerful and highest capacity TimberPro machine produced.

  • High power and hydraulic output with electronic controls for demanding loads
  • Hydrostatic swing for precision and speed control
  • Balanced stability combined with extended reach and lift capacity

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Features and benefits

Power to get the job done

Power to get the job done

A high output 390HP Cummins engine is among the most powerful in its class and provides the power and hydraulic capacity for brisk yet controlled swing and lift commands. The hydrostatic swing mechanism is redesigned, with dual motors and dedicated circuit for fast precision operation when placing logs.

Stable track frame

Stable track frame

Redesigned, extended 12 roller track frames provide a long, stable platform for even weight distribution, high traction and low ground pressure while moving heavy loads. More than 2.5 ft [.76 m] of ground clearance helps ensure that the operator can place the machine where it needs to be.

Long reach work equipment

Long reach work equipment

With more than 44 feet of reach [13.4 m] an operator can grab logs at a greater distance without having to reposition the machine — for less effort in loading and unloading trucks and with easy ability to high stack logs. Can be equipped with either grapple or live heel depending on application needs.

Comfortable spacious cab

Comfortable spacious cab

A comfortable operator is a productive operator. The TN785D has a plush, ergonomic air ride suspension seat with adjustable armrests for comfort. Electric over hydraulic controls can be custom tuned and configured to each operator and access to the operator station is made easy through a rear facing door. Additionally, there is a roof mounted egress hatch.

Outstanding visibility

Outstanding visibility

To aid the operator in maintaining line of sight to the work equipment and surrounding working area, the cab is raised 51 in [1.3 m] and has large windows on either side with protective guarding, a skylight for upward line of sight and a standard rearview camera system with dedicated display.

Enhanced serviceability

Enhanced serviceability

Ample walkways and access panels enable easy cleanout of debris buildup and daily service checks. Centralized greasing bank and tilting cab make routine maintenance straightforward. Ground level fueling and a convenient carbody mounted trunk storage allow for simple daily maintenance.


Specifications

Metric Imperial (US)
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  • Operating weight inclusions (imperial units): Truck Loader configuration: Cab with 51” riser, 28” double grouser shoes, log loader boom 24.6’, droop arm 17.9’, counterweight 5,000 lbs, cperator and standard equipment (no head); Live Heel configuration: cab with 51” riser, 28” double grouser shoes, log loader boom 24.6’, straight arm 17.9’, heel 4.4’,, counterweight 5,000 lbs, operator and standard equipment (no head)
  • Operating weight inclusions (metric units): Truck Loader configuration: Cab with 1,295 mm riser, 700 mm double grouser shoes, log loader boom 7,493 mm, droop arm 5,477 mm, counterweight 2,268 kg, cperator and standard equipment (no head); Live Heel configuration: cab with 1,295 mm riser, 700 mm double grouser shoes, log loader boom 7,493 mm, straight arm 5,252 mm, heel1,340 mm, counterweight 2,268 kg, operator and standard equipment (no head)

  • Hydraulics type: SAE/US/US Modified, custom attc. settings

  • Hydraulic motors

    • Swing: 2x Hydrostatic motors, closed loop with swing holding brake
    • Travel: 2x Hydrostatic motors, closed loop with parking brake

  • Relief valve setting

    • Implement circuits (MPa): 29
    • Implement circuits (psi): 4,200
    • Implement circuits (kgf/cm^2): 316
    • Travel circuit (kgf/cm^2): 421
    • Travel circuit (MPa): 41
    • Travel circuit (psi): 6,000
    • Swing circuit (kgf/cm^2): 408
    • Swing circuit (psi): 5,800
    • Swing circuit (MPa): 40
    • Pilot circuit (kgf/cm^2): 30
    • Pilot circuit (psi): 425
    • Pilot circuit (MPa): 2.9

  • Main pump

    • Hydraulic type: Load sense, pressure compensated, open loop system and dedicated closed loop systems
    • Pumps for: Boom, arm, swing, travel and auxiliary circuits; Variable displacement piston type
    • Maximum flow (L/min): 522
    • Maximum flow (US gpm): 138
    • Supply for control circuit: Charge pump

  • Hydraulic cylinders (Bore x Stroke x Rod Diameter)

    • Boom / 2 (mm): 165 x 1 575 x 110
    • Boom / 2 (in): 6.5 x 62.0 x 4.3
    • Arm / 1 (mm): 140 x 1 676 x 100
    • Arm / 1 (in): 5.5 x 65.9 x 3.9

  • Steering control: Two, bi-directional pedals
  • Drive method type: Hydrostatic
  • Maximum drawbar pull: 380 kN, 38 822 kgf
  • Maximum drawbar pull (lbs): 85,587
  • Gradeability: 35 deg

  • Maximum travel speed (auto-shift)

    • High (mph): 4.72
    • High (kph): 7.6
    • Low (kph): 2.5
    • Low (mph): 1.54
    • Parking brake: Hydraulic lock

  • Drive method: Hydrostatic closed loop
  • Swing reduction: Planetary gear
  • Swing circle lubrication: Grease-bathed, dual ball
  • Holding brake/Swing lock: Mechanical wet disc brake
  • Swing speed (rpm): 5.3
  • Swing torque (ft-lbs): 150,700
  • Swing torque (kg-m): 20 835

  • Fuel tank (US gal): 320
  • Fuel tank (L): 1,215
  • Coolant (L): 47.3
  • Coolant (US gal): 12.5
  • Engine (US gal): 6.1
  • Engine (L): 23.1
  • Final drive (US gal): 2.6
  • Final drive (L): 10
  • Swing drive (L): 7.2
  • Swing drive (US gal): 1.9
  • DEF tank (US gal): 15
  • DEF tank (L): 23.1
  • Hydraulic tank (L): 386
  • Hydraulic tank (US gal): 102
  • Hydraulic system (US gal): 140
  • Hydraulic system (L): 530

  • Engine Model: Cummins L9
  • Engine type: Water-cooled, 4-cycle, XPI Fuel system
  • Aspiration: Variable Geometry Turbo, aftercooled, cooled EGR
  • Number of cylinders: 6
  • Bore (in): 4.49
  • Bore (mm): 114
  • Stroke (in): 5.86
  • Stroke (mm): 145
  • Piston displacement (L): 8.9
  • Piston displacement (in^3): 543
  • Fan drive method for radiator cooling: Hydraulic, variable speed, auto reverse
  • Governor: All-speed control, electronic

  • Horsepower

    • SAEJ1995 - Gross (kW): 291 kW @ 2,100 rpm
    • SAEJ1995 - Gross (HP): 390 HP @ 2,100 rpm

  • Center frame: X-frame
  • Track frame: Box-section
  • Seal of track: Sealed track
  • Track adjuster: Hydraulic adjusted, spring tensioner
  • Number of shoes (each side): 57
  • Number of carrier rollers (each side): One piece slider
  • Number of track rollers (each side): 12
Metric Imperial (US)
Engine and related components
  • Engine,Cummins L9, Tier 4 final gross HP, J1995: 390HP
  • Selective Catalytic Reduction (SCR)
  • After-cooled, turbocharged direct injection
  • Air cleaner, double element
  • Fuel pre-filter, 10 micron
Cooling system
  • Radiator/oil cooler
  • Variable pitch, automatic reversing fan
Electrical system
  • Alternator (12V/100A)
  • Large capacity batteries (2 x 12V)
  • Starter motor (24V/7.8 kW)
  • Working lights, LED lighting
  • Battery disconnect switch
  • Extra LED working lights
Undercarriage
  • High/wide forestry undercarriage
  • Heavy-duty revolving frame
  • 28” double grouser shoes
  • Track rollers, HD 12/side
  • Carrier rollers, 1/side
  • Heavy-duty recoil spring
  • Heavy-duty tow hooks
  • Track guard full-length ski-type
  • Planetary reduction final drives
  • 2-speed auto shift travel system
Guards and covers
  • Perforated radiator and oil cooler hinged covers
  • Boom cylinder guard
  • Arm cylinder guard
  • Heavy-duty access doors
  • Heavy-duty under guard .24” thick
  • Side guards/walkways
  • Tree deflector side guard
  • Pump/engine partition cover
  • Forestry debris screens
Operating equipment
  • Raised tilting cab
  • Automatic climate control system
  • 1.25” polycarbonate front window
  • ROPS/OPS/TOPS/FOPS/WCB/Oregon OSHA certified
  • Low vibration cab mounts
  • Monitor panel, LCD, high-resolution color
  • Iqan control system
  • Seat, heated, high back, air suspension, lumbar adjust
  • Radio with Bluetooth connectivity
  • Adjustable arm rests
  • Rear view camera system with dedicated monitor
  • Cup holder
Work equipment
  • Dual-ball, grease bathed, swing bearing mechanism
  • Log loader boom, 24.6'
  • Droop arm, 17.9'
Hydraulic controls
  • Hydrostatic swing motors (2)
  • Hydrostatic travel motors (2)
  • Variable displacement implement pump
  • Dedicated swing pump
  • Electrohydraulic proportion control valves
  • Variable displacement auxiliary pump
  • Return filter, tank mounted (2)
  • Charge filter, remote mounted
  • Case drain filter, high pressure filtration, tank mounted
  • Electric hydraulic fluid fill pump
  • Engine/hydraulic overheat prevention system
Drive and brake system
  • Multi disk oil bath swing brake
  • Hydraulic travel/park brake
Other equipment
  • Electronically fold-down service platforms (rear)
  • 4-point operator’s harness
  • Tie-off points for service
  • Fire suppression
Engine and related components
  • Engine,Cummins L9, Tier 4 final gross HP, J1995: 390HP
  • Selective Catalytic Reduction (SCR)
  • After-cooled, turbocharged direct injection
  • Air cleaner, double element
  • Fuel pre-filter, 10 micron
Cooling system
  • Radiator/oil cooler
  • Variable pitch, automatic reversing fan
Electrical system
  • Alternator (12V/100A)
  • Large capacity batteries (2 x 12V)
  • Starter motor (24V/7.8 kW)
  • Working lights, LED lighting
  • Battery disconnect switch
  • Extra LED working lights
Undercarriage
  • High/wide forestry undercarriage
  • Heavy-duty revolving frame
  • 700 mm double grouser shoes
  • Track rollers, HD 12/side
  • Carrier rollers, 1/side
  • Heavy-duty recoil spring
  • Heavy-duty tow hooks
  • Track guard full-length ski-type
  • Planetary reduction final drives
  • 2-speed auto shift travel system
Guards and covers
  • Perforated radiator and oil cooler hinged covers
  • Boom cylinder guard
  • Arm cylinder guard
  • Heavy-duty access doors
  • Heavy-duty under guard 600 mm thick
  • Side guards/walkways
  • Tree deflector side guard
  • Pump/engine partition cover
  • Forestry debris screens
Operating equipment
  • Raised tilting cab
  • Automatic climate control system
  • 32 mm polycarbonate front window
  • ROPS/OPS/TOPS/FOPS/WCB/Oregon OSHA certified
  • Low vibration cab mounts
  • Monitor panel, LCD, high-resolution color
  • Iqan control system
  • Seat, heated, high back, air suspension, lumbar adjust
  • Radio with Bluetooth connectivity
  • Adjustable arm rests
  • Rear view camera system with dedicated monitor
  • Cup holder
Work equipment
  • Dual-ball, grease bathed, swing bearing mechanism
  • Log loader boom,7 493 mm
  • Droop arm, 5 477 mm
Hydraulic controls
  • Hydrostatic swing motors (2)
  • Hydrostatic travel motors (2)
  • Variable displacement implement pump
  • Dedicated swing pump
  • Electrohydraulic proportion control valves
  • Variable displacement auxiliary pump
  • Return filter, tank mounted (2)
  • Charge filter, remote mounted
  • Case drain filter, high pressure filtration, tank mounted
  • Electric hydraulic fluid fill pump
  • Engine/hydraulic overheat prevention system
Drive and brake system
  • Multi disk oil bath swing brake
  • Hydraulic travel/park brake
Other equipment
  • Electronically fold-down service platforms (rear)
  • 4-point operator’s harness
  • Tie-off points for service
  • Fire suppression
Metric Imperial (US)
Work equipment
  • Straight arm, 17.2'
  • Heel, 4.4'
  • Heel piping package
Work equipment
  • Straight arm, 5 252 mm
  • Heel, 1 340 mm
  • Heel piping package

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