6155M

Utility Tractor

  • PowerTech E (Tier 2) / PowerTech PVS 6.8 L (FT4)
  • Category 3N/3, 3-point hitch
  • MFWD with optional TLS Plus
  • OOS (FT4 only)/CommandView Cab

Features

PowerTech™ PVS/PSS Stage IV engine

Overview

John Deere 6R Series Tractors feature the reliable and proven PowerTech PVS 6.8L and PSS 4.5Lengines. These air-to-air aspirated engines deliver a power bulge above rated power to provide excellent torque in demanding applications.

Key features:

  • Series turbochargers (PSS only)
  • Variable geometry turbocharger (VGT)
  • Air-to-air after cooling
  • High-pressure common rail (HPCR) fuel system
  • Engine control unit (ECU)

PowerTech PSS/PVS engine identification

After treatment

  • S – Exhaust filter and selective catalytic reduction (SCR)
  • X – Exhaust filter

Turbocharger

  • V – VGT
  • S – Series turbochargers
  • W – Wastegate turbocharger

Technology

  • P – PowerTech Plus
  • E – PowerTech E

Benefits

  • A constant power range of 2100 rpm down to 1500 rpm
  • Power bulge of 10 percent
  • Greater tractor productivity
  • Responsive power reducing the need to downshift the transmission

Details

To match the engine power characteristics and improve the operation economy of the machine, the rated engine speed is 2100 rpm.

Series turbochargers

Overview

The PowerTech PSS 4.5L uses a wastegate and a fixed geometry turbocharger, providing the torque rise and engine response needed to meet varying load conditions.

Fresh air is first drawn into the low-pressure fixed geometry turbocharger and compressed to a higher pressure. The compressed, higher pressure air is then drawn into the high-pressure VGT, where the air is further compressed. By splitting the work between two turbochargers, both can operate at peak efficiency and at slower rotating speeds.

PowerTech PSS engine series turbochargersPowerTech PSS engine series turbochargers
#

Benefits

  • Delivers high-power density
  • More low-speed torque and responsiveness to meet varying load conditions

VGT

Overview

The VGT is electronically controlled and actuates the turbo vanes as required to maintain peak engine performance. PowerTech PVS 6.8L engines only have a VGT turbocharger.

The turbocharger’s vanes are in the exhaust flow. The opening or closing of the vanes changes the outlet volume and airflow speed against the turbocharger turbine. When exhaust flow is low, the vanes are partially closed. This partial closure increases the pressure against the turbine blades to make the turbocharger spin faster and generate more boost pressure.

The ability to keep the airflow at optimum levels provides more consistent engine boost pressure and the ability to respond to load quickly across the entire engine rpm range. This system is without the turbo lag that can be found on some engines.

PowerTech VGTPowerTech VGT
#

Benefits

  • Increased low rpm torque
  • Quicker response to load
  • Increased peak torque
  • Improved fluid economy
  • Improved performance at high altitudes

Air-to-air after cooling

Overview

Air-to-air after cooling lowers the intake manifold air temperature and provides more efficient cooling while reducing cylinder firing pressure and temperatures for greater engine reliability. Since lower temperature air is denser, a higher volume of air flows into cylinders so the engine is capable of meeting the increasing horsepower demands. Lowering the intake manifold and cylinder temperatures also aid in lowering the combustion temperature, which lowers the NOx produced as a result.

Benefits

  • Higher horsepower
  • Less NOx production

HPCR fuel injection system

Overview

Every PowerTech PSS 4.5L engine utilizes a HPCR fuel system to efficiently supply fuel to injectors. The high-pressure fuel pump instantly responds to requirements for more or less fuel flow or pressure. This electronically controlled, high-pressure pump delivers pressure on demand according to the application requirements. Pressure on demand ensures an efficient injection system resulting in high-injection pressure independent of engine speed.

High-pressure common rail (HPCR)High-pressure common rail (HPCR)
#

Benefits

  • Instantly respond to load changes reducing the need to change gears
  • Improved fluid economy

Engine control unit (ECU)

Overview

The ECU uses signal inputs from sensors and pre-programmed performance modeling to control critical engine functions such as fuel quantity, injection timing, air-to-fuel ratio, multiple fuel injections, amount of cooled exhaust gas recirculation (EGR), and a host of other control parameters.

ECUECU
#

Benefits

  • Optimized fluid economy
  • Maximum engine performance

Details

Each injector is controlled individually by the ECU. The ECU turns the injector on and off during each firing cycle to control the fuel delivery into each cylinder.

Load and speed sensing allows each cylinder’s fuel delivery rate to be adjusted independently at the individual injector. With each injection cycle, the ECU can make the following adjustments on the go:

  • Number of injections
  • Fuel pressure in the common rail
  • Start of injection
  • Duration of injection

This management system is connected to the transmission, allowing the engine and transmission to respond simultaneously.

Cold weather and high-altitude compensation are also precisely controlled for quality starts regardless of weather and maximum performance at high elevations. The ECU also features improved diagnostic capabilities. It is faster, has more working memory, and is responsible for monitoring and executing all aspects of the integrated emission control system.

Overview

John Deere 6R Series Tractors feature the reliable and proven PowerTech PVS 6.8L and PSS 4.5Lengines. These air-to-air aspirated engines deliver a power bulge above rated power to provide excellent torque in demanding applications.

Key features:

  • Series turbochargers (PSS only)
  • Variable geometry turbocharger (VGT)
  • Air-to-air after cooling
  • High-pressure common rail (HPCR) fuel system
  • Engine control unit (ECU)

PowerTech PSS/PVS engine identification

After treatment

  • S – Exhaust filter and selective catalytic reduction (SCR)
  • X – Exhaust filter

Turbocharger

  • V – VGT
  • S – Series turbochargers
  • W – Wastegate turbocharger

Technology

  • P – PowerTech Plus
  • E – PowerTech E

Benefits

  • A constant power range of 2100 rpm down to 1500 rpm
  • Power bulge of 10 percent
  • Greater tractor productivity
  • Responsive power reducing the need to downshift the transmission

Details

To match the engine power characteristics and improve the operation economy of the machine, the rated engine speed is 2100 rpm.

Series turbochargers

Overview

The PowerTech PSS 4.5L uses a wastegate and a fixed geometry turbocharger, providing the torque rise and engine response needed to meet varying load conditions.

Fresh air is first drawn into the low-pressure fixed geometry turbocharger and compressed to a higher pressure. The compressed, higher pressure air is then drawn into the high-pressure VGT, where the air is further compressed. By splitting the work between two turbochargers, both can operate at peak efficiency and at slower rotating speeds.

PowerTech PSS engine series turbochargersPowerTech PSS engine series turbochargers
#

Benefits

  • Delivers high-power density
  • More low-speed torque and responsiveness to meet varying load conditions

VGT

Overview

The VGT is electronically controlled and actuates the turbo vanes as required to maintain peak engine performance. PowerTech PVS 6.8L engines only have a VGT turbocharger.

The turbocharger’s vanes are in the exhaust flow. The opening or closing of the vanes changes the outlet volume and airflow speed against the turbocharger turbine. When exhaust flow is low, the vanes are partially closed. This partial closure increases the pressure against the turbine blades to make the turbocharger spin faster and generate more boost pressure.

The ability to keep the airflow at optimum levels provides more consistent engine boost pressure and the ability to respond to load quickly across the entire engine rpm range. This system is without the turbo lag that can be found on some engines.

PowerTech VGTPowerTech VGT
#

Benefits

  • Increased low rpm torque
  • Quicker response to load
  • Increased peak torque
  • Improved fluid economy
  • Improved performance at high altitudes

Air-to-air after cooling

Overview

Air-to-air after cooling lowers the intake manifold air temperature and provides more efficient cooling while reducing cylinder firing pressure and temperatures for greater engine reliability. Since lower temperature air is denser, a higher volume of air flows into cylinders so the engine is capable of meeting the increasing horsepower demands. Lowering the intake manifold and cylinder temperatures also aid in lowering the combustion temperature, which lowers the NOx produced as a result.

Benefits

  • Higher horsepower
  • Less NOx production

HPCR fuel injection system

Overview

Every PowerTech PSS 4.5L engine utilizes a HPCR fuel system to efficiently supply fuel to injectors. The high-pressure fuel pump instantly responds to requirements for more or less fuel flow or pressure. This electronically controlled, high-pressure pump delivers pressure on demand according to the application requirements. Pressure on demand ensures an efficient injection system resulting in high-injection pressure independent of engine speed.

High-pressure common rail (HPCR)High-pressure common rail (HPCR)
#

Benefits

  • Instantly respond to load changes reducing the need to change gears
  • Improved fluid economy

Engine control unit (ECU)

Overview

The ECU uses signal inputs from sensors and pre-programmed performance modeling to control critical engine functions such as fuel quantity, injection timing, air-to-fuel ratio, multiple fuel injections, amount of cooled exhaust gas recirculation (EGR), and a host of other control parameters.

ECUECU
#

Benefits

  • Optimized fluid economy
  • Maximum engine performance

Details

Each injector is controlled individually by the ECU. The ECU turns the injector on and off during each firing cycle to control the fuel delivery into each cylinder.

Load and speed sensing allows each cylinder’s fuel delivery rate to be adjusted independently at the individual injector. With each injection cycle, the ECU can make the following adjustments on the go:

  • Number of injections
  • Fuel pressure in the common rail
  • Start of injection
  • Duration of injection

This management system is connected to the transmission, allowing the engine and transmission to respond simultaneously.

Cold weather and high-altitude compensation are also precisely controlled for quality starts regardless of weather and maximum performance at high elevations. The ECU also features improved diagnostic capabilities. It is faster, has more working memory, and is responsible for monitoring and executing all aspects of the integrated emission control system.

Pressure-and-flow-compensated (PFC) system, 114 L/min (30.1 gpm)

6M Tractor with PFC system6M Tractor with PFC system
#

The 6M Series Tractors offer a closed-center PFC hydraulic system with 114 L/min (30.1 gpm) of flow, allowing 200 bar (2900 psi) of variable working pressure in base on all models.


The hydraulic system is load sensing, which means a valve on the pump immediately initiates pump flow when required. When flow is no longer required, the pump returns to low-pressure, no-flow standby mode.

Benefits:

  • Reduced load on engine
  • Improved fuel efficiency
  • Enhanced oil cooling
  • Reduced internal leakage
  • Reduced hydraulic noise levels
  • Less strain on hoses and seals
  • Contributes to overall efficiency concept of the tractor
  • Fast system response times
  • Minimum energy losses, as pump returns to no output state when hydraulic flow is not needed

Pressure for the entire system is established by the function requiring the highest pressure. As load decreases, so does the hydraulic pump pressure and engine power requirements.

Other hydraulic system advantages include:

  • Mechanical-controlled valves
  • Hydraulic steering for effortless operation
  • Hydraulic wet-disc brakes that provide excellent brake performance
  • 3-point hitch with increased lift capacity that can handle even the heaviest implements

High-capacity hydraulic pump

The hydraulic pump is located close to the hitch valve and selective control valves (SCVs), allowing:

  • Fewer and shorter lines
  • Quick system response times
  • Minimized energy losses


Essential services have priority

The priority valve ensures, even at low idle engine speed, full power to the essential services like:

  • Steering
  • Brakes
  • Hydraulic-trailer brakes, if equipped

Hydraulic and transmission systems are functionally separate; however, both systems utilize a common reservoir for easy serviceability.

Oil take out capacity with/without additional tank

With PFC hydraulic system, an extra 12-L (3.7-gal.) oil reservoir is available to increase the oil withdrawal capacity of the hydraulic system. This permanently allows the optimum oil level of all drive components, with advantages for durability and efficiency.

NOTE: Not for 6M Open Operator Station (OOS) Tractors.

6M Tractor with PFC system6M Tractor with PFC system
#

The 6M Series Tractors offer a closed-center PFC hydraulic system with 114 L/min (30.1 gpm) of flow, allowing 200 bar (2900 psi) of variable working pressure in base on all models.


The hydraulic system is load sensing, which means a valve on the pump immediately initiates pump flow when required. When flow is no longer required, the pump returns to low-pressure, no-flow standby mode.

Benefits:

  • Reduced load on engine
  • Improved fuel efficiency
  • Enhanced oil cooling
  • Reduced internal leakage
  • Reduced hydraulic noise levels
  • Less strain on hoses and seals
  • Contributes to overall efficiency concept of the tractor
  • Fast system response times
  • Minimum energy losses, as pump returns to no output state when hydraulic flow is not needed

Pressure for the entire system is established by the function requiring the highest pressure. As load decreases, so does the hydraulic pump pressure and engine power requirements.

Other hydraulic system advantages include:

  • Mechanical-controlled valves
  • Hydraulic steering for effortless operation
  • Hydraulic wet-disc brakes that provide excellent brake performance
  • 3-point hitch with increased lift capacity that can handle even the heaviest implements

High-capacity hydraulic pump

The hydraulic pump is located close to the hitch valve and selective control valves (SCVs), allowing:

  • Fewer and shorter lines
  • Quick system response times
  • Minimized energy losses


Essential services have priority

The priority valve ensures, even at low idle engine speed, full power to the essential services like:

  • Steering
  • Brakes
  • Hydraulic-trailer brakes, if equipped

Hydraulic and transmission systems are functionally separate; however, both systems utilize a common reservoir for easy serviceability.

Oil take out capacity with/without additional tank

With PFC hydraulic system, an extra 12-L (3.7-gal.) oil reservoir is available to increase the oil withdrawal capacity of the hydraulic system. This permanently allows the optimum oil level of all drive components, with advantages for durability and efficiency.

NOTE: Not for 6M Open Operator Station (OOS) Tractors.

Full-frame design provides superior support

Overview

The strong steel frame has been a John Deere industry exclusive since 1992, providing profound advantages over competitor solutions.

Loader bracket attached to full-frame designLoader bracket attached to full-frame design
Full-frame designFull-frame design

Below is a table demonstrating the available wheelbase measurements for all 6M models (mm/in.).

Final Tier 4 (FT4) cab and OOS models

Models

6110M – 6130M

6145M – 6155M

6175M – 6195M

Wheelbase, mm

2580

2765

2800

Wheelbase, in.

101.6

108.9

110.3

Benefits
  • This unique solution achieves higher payloads without increasing tractor weight, thus increasing productivity.
  • The engine is separated from the full-frame design using rubber bushings. This method reduces the noise and vibration from the engine, ultimately improving tractor uptime and operator comfort.
  • Full frame carries the load while the powertrain transmits engine power to the final drive. This reduces stress on mechanical components thus improving uptime and reducing costs of operation.
  • Higher power density is delivered by separating the load carrying components from the power transmitting components, allowing optimized designs and operator performance.
  • Loader brackets mounted directly to the full frame, therefore loader forces are not transmitted to the engine or transmission.
#

Improved serviceability

  • Frame mounting allows easier component accessibility without disturbing other systems.
  • Complete modular component replacement, such as transmission and engine is achieved without splitting the tractor in half.
Overview

The strong steel frame has been a John Deere industry exclusive since 1992, providing profound advantages over competitor solutions.

Loader bracket attached to full-frame designLoader bracket attached to full-frame design
Full-frame designFull-frame design

Below is a table demonstrating the available wheelbase measurements for all 6M models (mm/in.).

Final Tier 4 (FT4) cab and OOS models

Models

6110M – 6130M

6145M – 6155M

6175M – 6195M

Wheelbase, mm

2580

2765

2800

Wheelbase, in.

101.6

108.9

110.3

Benefits
  • This unique solution achieves higher payloads without increasing tractor weight, thus increasing productivity.
  • The engine is separated from the full-frame design using rubber bushings. This method reduces the noise and vibration from the engine, ultimately improving tractor uptime and operator comfort.
  • Full frame carries the load while the powertrain transmits engine power to the final drive. This reduces stress on mechanical components thus improving uptime and reducing costs of operation.
  • Higher power density is delivered by separating the load carrying components from the power transmitting components, allowing optimized designs and operator performance.
  • Loader brackets mounted directly to the full frame, therefore loader forces are not transmitted to the engine or transmission.
#

Improved serviceability

  • Frame mounting allows easier component accessibility without disturbing other systems.
  • Complete modular component replacement, such as transmission and engine is achieved without splitting the tractor in half.

Mechanical cab suspension delivers operator comfort

Overview
6M cab suspension6M cab suspension

The newly introduced mechanical cab suspension (MCS) offers even higher levels of comfort to operators. For operators wanting superior operator comfort and smoother driving, mechanical cab suspension is available for all 6M Series Cab Tractors. The mechanical cab suspension reduces operator fatigue and discomfort, especially for applications requiring long hours inside the cab. The system also provides stability to monitors in the cab during use.

6M cab suspension6M cab suspension

The cab rests on two fully integrated shock absorbers which dampens the vibrations coming through the frame. The suspension range is set to +/- 50 mm.

6M cab suspension6M cab suspension
Mechanical cab suspension with mountingMechanical cab suspension with mounting

Benefits

  • Superior operator comfort, especially at higher transport speed
  • Higher operator efficiency
  • In addition to having a smoother ride, the cab is more isolated against noise and vibrations from the engine, transmission, and chassis compared to the base equipment cab.
  • Offer increased effectiveness of operation for long hours on a wide range of demanding tasks

Details

  • Available on all cab models only
CodeDescription
8261Mechanical cab suspension
Overview
6M cab suspension6M cab suspension

The newly introduced mechanical cab suspension (MCS) offers even higher levels of comfort to operators. For operators wanting superior operator comfort and smoother driving, mechanical cab suspension is available for all 6M Series Cab Tractors. The mechanical cab suspension reduces operator fatigue and discomfort, especially for applications requiring long hours inside the cab. The system also provides stability to monitors in the cab during use.

6M cab suspension6M cab suspension

The cab rests on two fully integrated shock absorbers which dampens the vibrations coming through the frame. The suspension range is set to +/- 50 mm.

6M cab suspension6M cab suspension
Mechanical cab suspension with mountingMechanical cab suspension with mounting

Benefits

  • Superior operator comfort, especially at higher transport speed
  • Higher operator efficiency
  • In addition to having a smoother ride, the cab is more isolated against noise and vibrations from the engine, transmission, and chassis compared to the base equipment cab.
  • Offer increased effectiveness of operation for long hours on a wide range of demanding tasks

Details

  • Available on all cab models only
CodeDescription
8261Mechanical cab suspension

CommandQuad™ PLUS transmission – Available on all 6M Series Tractors (excluding open operator station [OOS])