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Harsh Directional Shift Performance on Certain Motor Graders {7000} Caterpillar


Harsh Directional Shift Performance on Certain Motor Graders {7000}

Usage:

16M B9H
Motor Grader
14M (S/N: B9J1-UP; R9J1-UP)
14M Series 3 (S/N: E9S1-UP; N9S1-UP)
16M (S/N: B9H1-UP; R9H1-UP)
16M Series 3 (S/N: E9Y1-UP)
18M Series 3 (S/N: N9A1-UP; E9W1-UP)

Introduction

The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the temporary solution that is identified below.

Problem

Harsh directional shift performance is occurring on certain Motor Graders that have been updated with "Optimized Gear Selection" software released in the third quarter of 2015 or later.

Solution

For recommendations to potentially improve shift quality, refer to M0069342 , Maximizing Transmission Shift Performance on Certain M, M2, and M3 Series Motor Graders.

Shift harshness can be reduced through changing operational techniques. When executing a shift, heed the following:

  • Maintain constant throttle or utilize the throttle lock

  • Do not utilize the inching pedal when performing a shift

  • Reduce machine ground speed prior to executing a directional shift, especially when performing a shift against the grade

  • Executing directional shifts from consistent gears and engine speeds will result in consistent directional gear selection

Below the details in "Optimized Gear Selection" include the expected shifts based on engine speed, slope, and gear select at the time of commanding a Direction/Shuttle Shift.

Optimized Gear Selection

Frequently Asked Questions

Q) What is Optimized Gear Select?

A) A feature that manages the directional shifting to provide improved transmission durability

  • Optimized Gear Select is a standard feature that affects directional shifting. This feature is designed to improve transmission durability by reducing the energy absorbed by the transmission components during a directional shift.

  • The Optimized Gear Select feature works by looking at various machine inputs in order to select the proper gear to engage when executing a directional shift; engine speed may also be reduced during the shift as a part of this feature. Machine speed, transmission gear, and the grade on which the machine is operating (if equipped with a slope sensor and enabled) are all factors that are analyzed by the software.

Q) Why is this feature required?

A) To protect key machine components

  • The Optimized Gear Select feature is designed to improve transmission durability in certain applications by reducing the energy absorbed by the transmission.

  • High-speed directional shifts overtime can potentially reduce the durability of the transmission. Directional shifts executed against the grade, at high engine speeds, and from higher gears can all introduce higher shift energies into the transmission. Inching pedal usage during directional shifts can also increase the shift energy. By reducing the energy absorbed by the transmission, the durability of this component can be increased, especially in the more severe applications.

Q) Can I turn off the Optimized Gear Select feature?

A) No

  • Optimized Gear Select is a standard feature that cannot be turned off. The feature is designed to modify the directional shift functionality to reduce shift energy and help to increase the transmission durability. This feature is part of the core transmission software.

  • The slope sensor enhancement for the Optimized Gear Select Feature can be enabled or disabled by the Cat Dealer if a slope sensor is physically installed on the unit. Enabling this enhancement may help to reduce engine lug during a directional shift.

Q) How will this feature affect my machine operation?

A) The gears engaged coming out of a directional shift will vary according to machine factors entering the shift; the engine speed may also be reduced during the shift. The display will communicate the highest available directional shift gear based on the varying machine operating conditions.

  • When a directional shift is commanded, the machine speed, current gear, and machine grade (if a slope sensor is installed and enabled) are all analyzed by the software. The charts on the following pages show the potential gears that will be engaged; these gears will change based on machine factors when the directional shift is commanded. For example on a 16M, a directional shift commanded on level ground from 3F with the machine at high idle will engage 2R. Because the ground speed is relatively high, a lower reverse gear is engaged to help reduce the shift energy. The same directional shift executed with the engine speed below 1650 RPM would result in 3R engaging. Because the ground speed is lower, a higher reverse gear is allowed.

  • The Optimized Gear Select feature performs several new shifts that involve engaging and disengaging multiple clutches in the transmission (3F→ 1R or 4R→ 2F for example). The previous shift logic only engaged/disengaged a single clutch during most directional shifts. Because of the multiple clutches engaging/disengaging, the new shifts may not feel as smooth as those previously allowed. The new shifts have been optimized for both shift quality and durability of transmission components. Recalibrating the transmission may also help to smooth shifts.

  • The new Optimized Gear Select feature may reduce the engine speed during a directional shift to reduce shift energy. The engine speed may be automatically reduced regardless of throttle setting or position. A certain amount of engine lug can be expected with the new feature. Inching pedal usage during directional shifts can increase the engine lug; it is recommended to avoid inching pedal usage during directional shifts.

Q) I have noticed that directional shifts do not engage a consistent gear; what can I do to improve this consistency?

A) Execute shifts from consistent gears and speeds.

  • If machine operating conditions change slightly, a different gear may be engaged when a directional shift is executed. By maintaining a consistent ground speed, throttle setting, and gear from which the directional shift is commanded, the variability is minimized; shift consistency should improve. Please reference the following charts to see the shifts that can be expected based on machine operating conditions.

  • Caterpillar recommends downshifting to 2F or 2R prior to executing a directional shift. This will provide consistent directional gear engagement, help to reduce engine lug, and maximize transmission durability.

  • Again, maintaining a constant throttle setting and not modulating the inching pedal during a directional shift is essential to providing consistent and optimized directional shifts. The software may modulate the throttle automatically during the shift; however, the throttle setting controlled by the operator should remain constant. Inching while shifting is not recommended.

  • If a slope sensor is installed and enabled on the machine, the grade on which the machine is operating will influence the gear that is engaged when a directional shift is commanded. The installation and enabling of a slope sensor may help to reduce engine lug as well. The slope sensor can be installed by the Caterpillar dealer.

Q) The slope sensor has been mentioned several times; what is this and why should I install it on my machine?

A) The slope sensor is an enhancement to the Optimized Gear Select feature; it helps to reduce engine lug during certain directional shifts as well as maximize transmission durability.

  • The slope sensor is an optional sensor mounted to the front frame above the drawbar. If your unit is equipped with Cross Slope or another Accugrade system, the slope sensor is integrated into these systems. Note: only Caterpillar factory installed Accugrade systems will allow the use of this integrated slope sensor with the Optimized Gear Select feature. A similar slope sensor, on units equipped with aftermarket grade control or cross slope systems, will not be recognized by the transmission software. The Caterpillar slope sensor and the required wiring can also be installed by the Caterpillar dealer as a stand-alone sensor.

  • In addition to being physically installed on the machine, the sensor must also be electronically enabled for use with the new Optimized Gear Select feature. The Caterpillar dealer can physically install and electronically enabling this sensor.

  • The slope sensor provides data to determine if a directional shift is being commanded against the grade, with the grade, or on relatively level ground. Reduced engine lugging under certain conditions, optimized directional gear engagement, and maximized transmission durability can result if this sensor is utilized.

  • If the slope sensor is damaged or faulted, the Optimized Gear Select feature assumes that the unit is operating on level ground (0% slope).

Q) Are speed shifts or inching affected by the Optimized Gear Select Feature?

A) No

  • The Optimized Gear Select feature made no changes to speed shifts or inching functionality. If speed shift quality or inching performance seems to be affected, Caterpillar recommends recalibrating the transmission.

  • Note that on the 16M models, the new software release that contains the Optimized Gear Select feature also enables the Limited Inching feature by default. Refer to the OMM for details on this feature. The Limited Inching Feature can be disabled using Cat® Electronic Technician (CatET) Service Tool.

16M Expected Shifts

The following charts represent shifts to expect when the grade sensor is not installed, not enabled, or has faulted.

Show/hide table
Table 1
Shuttle Shift Request While in 4F  Expected Shift 
Engine Speed (rpm) at Time of Shuttle Shift Request  <1200  4F-3R 
Between 1200 & 1650 4F-2R 
Between 1650 & 2100 4F-1R 
>2100 4F-3F-1R 

Show/hide table
Table 2
Shuttle Shift Request While in 3F  Expected Shift 
Engine Speed (rpm) at Time of Shuttle Shift Request  <1650  3F-3R 
>1650 3F-2R 

Show/hide table
Table 3
Shuttle Shift Request While in 4R  Expected Shift 
Engine Speed (rpm) at Time of Shuttle Shift Request  <1350  4R-3F 
Between 1350 & 1700 4R-2F 
Between 1700 & 1900 4R-1F 
>1900 4R-3R-1F 

Show/hide table
Table 4
Shuttle Shift Request While in 3R  Expected Shift 
Engine Speed (rpm) at Time of Shuttle Shift Request  <2100  3R-3F 
>2100 3R-2F 

16M Expected Shifts w/Grade Sensor

The following charts represent shifts to expect when the grade sensor is installed, enabled, and functioning.

Show/hide table
Table 5
Shuttle Shift Request While in 4F  Machine Grade (%) 
-20% Nose Down -10% Nose Down Flat  +10% to +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  4F-3F-1R  4F-3F-1R  4F-3F-1R  4F-3R 
2000 4F-3F-1R  4F-3F-1R  4F-1R 
1800 4F-3F-1R  4F-1R  4F-1R 
1600 4F-3F-1R  4F-1R  4F-2R 
1400 4F-1R  4F-2R  4F-2R 
1200 4F-1R  4F-2R  4F-2R 
1000 4F-2R  4F-2R  4F-3R 
800 4F-2R  4F-3R  4F-3R 
  Expected Shift 

Show/hide table
Table 6
Shuttle Shift Request While in 3F  Machine Grade (%) 
-20% Nose Down -10% Nose Down Flat  +10% to +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  3F-1R  3F-1R  3F-2R  3F-3R 
2000 3F-1R  3F-1R  3F-2R 
1800 3F-1R  3F-2R  3F-2R 
1600 3F-1R  3F-2R  3F-3R 
1400 3F-2R  3F-2R  3F-3R 
1200 3F-2R  3F-3R  3F-3R 
1000 3F-2R  3F-3R  3F-3R 
800 3F-2R  3F-3R  3F-3R 
  Expected Shift 

Show/hide table
Table 7
Shuttle Shift Request While in 2F  Machine Grade (%) 
-20% Nose Down -10% Nose Down Flat or +10% to +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  2F-1R  2F-2R 
2000 2F-2R 
1800 2F-2R 
1600 2F-2R 
1400 2F-2R 
1200 2F-2R 
1000 2F-2R 
800 2F-2R 
  Expected Shift 

Show/hide table
Table 8
Shuttle Shift Request While in 4R  Machine Grade (%) 
-10% to -20% Nose Down Flat +10% Nose Up  +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  4R-3F  4R-3R-1F  4R-3R-1F  4R-3R-1F 
2000 4R-3R-1F 4R-3R-1F  4R-3R-1F 
1800 4R-1F 4R-1F  4R-3R-1F 
1600 4R-2F 4R-2F  4R-3R-1F 
1400 4R-2F 4R-2F  4R-1F 
1200 4R-3F 4R-3F  4R-2F 
1000 4R-3F 4R-3F  4R-2F 
800 4R-3F 4R-3F  4R-3F 
  Expected Shift 

Show/hide table
Table 9
Shuttle Shift Request While in 3R  Machine Grade (%) 
Flat or -10% to -20% Nose Down +10% Nose Up +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  3R-2F  3R-2F  3R-1F 
2000 3R-3F  3R-3F  3R-1F 
1800 3R-3F  3R-3F  3R-2F 
1600 3R-3F  3R-3F  3R-2F 
1400 3R-3F  3R-3F  3R-3F 
1200 3R-3F  3R-3F  3R-3F 
1000 3R-3F  3R-3F  3R-3F 
800 3R-3F  3R-3F  3R-3F 
  Expected Shift 

Show/hide table
Table 10
Shuttle Shift Request While in 2R  Machine Grade (%) 
Flat or -10% to -20% Nose Down +10% Nose Up +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  2R-2F 
2000
1800
1600
1400
1200
1000
800
  Expected Shift 

14M Expected Shifts

The following charts represent shifts to expect when the grade sensor is not installed, not enabled, or has faulted.

Show/hide table
Table 11
Shuttle Shift Request While in 4F  Expected Shift 
Engine Speed (rpm) at Time of Shuttle Shift Request  <1600  4F-3R 
Between 1600 & 2050 4F-2R 
>2050 4F-1R 

Show/hide table
Table 12
Shuttle Shift Request While in 3F  Expected Shift 
Engine Speed (rpm) at Time of Shuttle Shift Request  Any  3F-3R 

Show/hide table
Table 13
Shuttle Shift Request While in 4R  Expected Shift 
Engine Speed (rpm) at Time of Shuttle Shift Request  <1400  4R-3F 
Between 1400 & 1750 4R-2F 
Between 1750 & 1950 4R-1F 
>1950 4R-3R-1F 

Show/hide table
Table 14
Shuttle Shift Request While in 3R  Expected Shift 
Engine Speed (rpm) at Time of Shuttle Shift Request  Any  3R-3F 

14M Expected Shifts w/Grade Sensor

The following charts represent shifts to expect when the grade sensor is installed, enabled, and functioning.

Show/hide table
Table 15
Shuttle Shift Request While in 4F  Machine Grade (%) 
-20% Nose Down -10% Nose Down Flat  +10% to +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  4F-3F-1R  4F-3F-1R  4F-1R  4F-3R 
2000 4F-3F-1R  4F-3F-1R  4F-2R 
1800 4F-3F-1R  4F-1R  4F-2R 
1600 4F-1R  4F-1R  4F-2R 
1400 4F-1R  4F-2R  4F-3R 
1200 4F-2R  4F-2R  4F-3R 
1000 4F-2R  4F-3R  4F-3R 
800 4F-2R  4F-3R  4F-3R 
  Expected Shift 

Show/hide table
Table 16
Shuttle Shift Request While in 3F  Machine Grade (%) 
-20% Nose Down -10% Nose Down Flat or +10% to +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  3F-1R  3F-1R  3F-3R 
2000 3F-1R  3F-2R  3F-3R 
1800 3F-1R  3F-2R  3F-3R 
1600 3F-2R  3F-2R  3F-3R 
1400 3F-2R  3F-3R  3F-3R 
1200 3F-2R  3F-3R  3F-3R 
1000 3F-3R  3F-3R  3F-3R 
800 3F-3R  3F-3R  3F-3R 
  Expected Shift 

Show/hide table
Table 17
Shuttle Shift Request While in 2F  Machine Grade (%) 
-20% Nose Down -10% Nose Down Flat or +10% to +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  2F-2R 
2000
1800
1600
1400
1200
1000
800
  Expected Shift 

Show/hide table
Table 18
Shuttle Shift Request While in 4R  Machine Grade (%) 
-10% to -20% Nose Down Flat +10% Nose Up  +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  4R-3F  4R-3R-1F  4R-3R-1F  4R-3R-1F 
2000 4R-3R-1F 4R-1F  4R-3R-1F 
1800 4R-1F 4R-2F  4R-3R-1F 
1600 4R-2F 4R-2F  4R-1F 
1400 4R-3F 4R-3F  4R-2F 
1200 4R-3F 4R-3F  4R-2F 
1000 4R-3F 4R-3F  4R-2F 
800 4R-3F 4R-3F  4R-3F 
  Expected Shift 

Show/hide table
Table 19
Shuttle Shift Request While in 3R  Machine Grade (%) 
Flat or -10% to -20% Nose Down +10% Nose Up +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  3R-3F  3R-2F 
2000 3R-2F
1800 3R-2F
1600 3R-3F
1400 3R-3F
1200 3R-3F
1000 3R-3F
800 3R-3F
  Expected Shift 

Show/hide table
Table 20
Shuttle Shift Request While in 2R  Machine Grade (%) 
Flat or -10% to -20% Nose Down +10% Nose Up +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  2R-2F 
2000
1800
1600
1400
1200
1000
800
  Expected Shift 

16M3/18M3 Expected Shifts

The following charts represent shifts to expect when the grade sensor is installed, enabled, and functioning. If the grade sensor is not installed, not enabled, or has faulted, all shifts will be default to the "Flat" machine grade.

Show/hide table
Table 21
Shuttle Shift Request While in 4F  Machine Grade (%) 
-20% Nose Down -10% Nose Down Flat  +10% to +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  4F-3F-1R  4F-3F-1R  4F-1R  4F-3R 
2000 4F-3F-1R  4F-3F-1R  4F-1R 
1800 4F-3F-1R  4F-3F-1R  4F-2R 
1600 4F-3F-1R  4F-3F-1R  4F-2R 
1400 4F-1R  4F-1R  4F-2R 
1200 4F-1R  4F-1R  4F-3R 
1000 4F-1R  4F-2R  4F-3R 
800 4F-1R  4F-2R  4F-3R 
  Expected Shift 

Show/hide table
Table 22
Shuttle Shift Request While in 3F  Machine Grade (%) 
-20% Nose Down -10% Nose Down Flat  +10% to +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  3F-1R  3F-1R  3F-2R  3F-3R 
2000 3F-1R  3F-1R  3F-2R 
1800 3F-1R  3F-1R  3F-3R 
1600 3F-1R  3F-1R  3F-3R 
1400 3F-1R  3F-2R  3F-3R 
1200 3F-1R  3F-2R  3F-3R 
1000 3F-1R  3F-2R  3F-3R 
800 3F-1R  3F-2R  3F-3R 
  Expected Shift 

Show/hide table
Table 23
Shuttle Shift Request While in 2F  Machine Grade (%) 
-20% Nose Down -10% Nose Down Flat or +10% to +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  2F-1R  2F-1R  2F-2R 
2000 2F-1R  2F-2R  2F-2R 
1800 2F-1R  2F-2R  2F-2R 
1600 2F-1R  2F-2R  2F-2R 
1400 2F-1R  2F-2R  2F-2R 
1200 2F-1R  2F-2R  2F-2R 
1000 2F-2R  2F-2R  2F-2R 
800 2F-2R  2F-2R  2F-2R 
  Expected Shift 

Show/hide table
Table 24
Shuttle Shift Request While in 4R  Machine Grade (%) 
-10% to -20% Nose Down Flat +10% Nose Up  +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  4R-3F  4R-1F  4R-3R-1F  4R-3R-1F 
2000 4R-2F 4R-3R-1F  4R-3R-1F 
1800 4R-2F 4R-3R-1F  4R-3R-1F 
1600 4R-3F 4R-3R-1F  4R-3R-1F 
1400 4R-3F 4R-1F  4R-1F 
1200 4R-3F 4R-2F  4R-1F 
1000 4R-3F 4R-2F  4R-1F 
800 4R-3F 4R-3F  4R-1F 
  Expected Shift 

Show/hide table
Table 25
Shuttle Shift Request While in 3R  Machine Grade (%) 
Flat or -10% to -20% Nose Down +10% Nose Up +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  3R-3F  3R-2F  3R-1F 
2000 3R-2F 3R-1F 
1800 3R-2F 3R-1F 
1600 3R-2F 3R-1F 
1400 3R-3F 3R-1F 
1200 3R-3F 3R-1F 
1000 3R-3F 3R-2F 
800 3R-3F 3R-2F 
  Expected Shift 

Show/hide table
Table 26
Shuttle Shift Request While in 2R  Machine Grade (%) 
Flat or -10% to -20% Nose Down +10% Nose Up +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  2R-2F  2R-1F 
2000 2R-1F
1800 2R-1F
1600 2R-2F
1400 2R-2F
1200 2R-2F
1000 2R-2F
800 2R-2F
  Expected Shift 

14M3 Expected Shifts

The following charts represent shifts to expect when the grade sensor is installed, enabled, and functioning. If the grade sensor is not installed, not enabled, or has faulted, all shifts will be default to the "Flat" machine grade.

Show/hide table
Table 27
Shuttle Shift Request While in 4F  Machine Grade (%) 
-20% Nose Down -10% Nose Down Flat  +10% to +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  4F-3F-1R  4F-3F-1R  4F-1R  4F-3R 
2000 4F-3F-1R  4F-3F-1R  4F-1R 
1800 4F-3F-1R  4F-3F-1R  4F-2R 
1600 4F-3F-1R  4F-1R  4F-2R 
1400 4F-1R  4F-1R  4F-3R 
1200 4F-1R  4F-2R  4F-3R 
1000 4F-1R  4F-2R  4F-3R 
800 4F-2R  4F-3R  4F-3R 
  Expected Shift 

Show/hide table
Table 28
Shuttle Shift Request While in 3F  Machine Grade (%) 
-20% Nose Down -10% Nose Down Flat  +10% to +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  3F-1R  3F-1R  3F-2R  3F-3R 
2000 3F-1R  3F-1R  3F-3R 
1800 3F-1R  3F-1R  3F-3R 
1600 3F-1R  3F-2R  3F-3R 
1400 3F-1R  3F-2R  3F-3R 
1200 3F-2R  3F-2R  3F-3R 
1000 3F-2R  3F-3R  3F-3R 
800 3F-2R  3F-3R  3F-3R 
  Expected Shift 

Show/hide table
Table 29
Shuttle Shift Request While in 2F  Machine Grade (%) 
-20% Nose Down -10% Nose Down Flat or +10% to +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  2F-2R 
2000
1800
1600
1400
1200
1000
800
  Expected Shift 

Show/hide table
Table 30
Shuttle Shift Request While in 4R  Machine Grade (%) 
-10% to -20% Nose Down Flat +10% Nose Up  +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  4R-3F  4R-3R-1F  4R-3R-1F  4R-3R-1F 
2000 4R-3R-1F 4R-3R-1F  4R-3R-1F 
1800 4R-1F 4R-1F  4R-3R-1F 
1600 4R-2F 4R-2F  4R-3R-1F 
1400 4R-2F 4R-2F  4R-1F 
1200 4R-3F 4R-3F  4R-2F 
1000 4R-3F 4R-3F  4R-2F 
800 4R-3F 4R-3F  4R-3F 
  Expected Shift 

Show/hide table
Table 31
Shuttle Shift Request While in 3R  Machine Grade (%) 
Flat or -10% to -20% Nose Down +10% Nose Up +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  3R-3F  3R-2F  3R-1F 
2000 3R-3F 3R-2F 
1800 3R-3F 3R-2F 
1600 3R-3F 3R-2F 
1400 3R-3F 3R-3F 
1200 3R-3F 3R-3F 
1000 3R-3F 3R-3F 
800 3R-3F 3R-3F 
  Expected Shift 

Show/hide table
Table 32
Shuttle Shift Request While in 2R  Machine Grade (%) 
Flat or -10% to -20% Nose Down +10% Nose Down +20% Nose Up 
Engine Speed (rpm) at Time of Shuttle Shift Request  2150  2R-2F 
2000
1800
1600
1400
1200
1000
800
  Expected Shift 

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986K Wheel Loader Power Train Axle Oil Cooler - Remove and Install
Latest Channel1 Video Notice for D-Series and D2 Series Compact Track Loaders, Multi-Terrain Loaders, Skid Steer Loaders {7000} Latest Channel1 Video Notice for D-Series and D2 Series Compact Track Loaders, Multi-Terrain Loaders, Skid Steer Loaders {7000}
Improved O-Ring Seals for the Rear Axle Lubrication System are Now Available for 785C Off-Highway Trucks {1374, 3016, 3067, 3260, 4257, 5068} Improved O-Ring Seals for the Rear Axle Lubrication System are Now Available for 785C Off-Highway Trucks {1374, 3016, 3067, 3260, 4257, 5068}
994K Wheel Loader Systems Control Valve
Diagnostic Fault Codes Occurring at the Same Time May Have Different Engine Hours Stamps on Certain Cat&reg; Product Link Elite Assets {7606} Diagnostic Fault Codes Occurring at the Same Time May Have Different Engine Hours Stamps on Certain Cat&reg; Product Link Elite Assets {7606}
Air Conditioning and Heating R134a for All Caterpillar Machines Refrigerant Compressor
Cat &reg; Command for Dozing, Gen 3.5 Remote Control Operator Console with RFID for D8T Track Type Tractor Horn - Test - Daily
Cat &reg; Command for Dozing, Gen 3.5 Remote Control Operator Console with RFID for D8T Track Type Tractor Machine Override Controls - Check - Daily
Cat &reg; Command for Dozing, Gen 3.5 Remote Control Operator Console with RFID for D8T Track Type Tractor Monitor - Clean - When Required
Certain Cat&reg; Product Link Assets With Cat Production Measurement May Map Segment Time Incorrectly to Previous Cycle {7606} Certain Cat&reg; Product Link Assets With Cat Production Measurement May Map Segment Time Incorrectly to Previous Cycle {7606}
A New Caterpillar Advanced Ride Management Seat Suspension Is Available For 770G, 772G, 773G, 775G, 777G Off Highway Trucks {7324} A New Caterpillar Advanced Ride Management Seat Suspension Is Available For 770G, 772G, 773G, 775G, 777G Off Highway Trucks {7324}
Certain Cat&reg; Product Link Devices (PLE641/PL641) May Not Communicate to Back Office {7606} Certain Cat&reg; Product Link Devices (PLE641/PL641) May Not Communicate to Back Office {7606}
986K Wheel Loader Power Train Power Train Filter and Mounting (Torque Converter, Transmission) - Remove and Install
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