Table of Content:
1 Introduction
1.1 Foreword
1.2 Emissions Performance and Tampering
1.3 Notifications to User
1.4 FCC Notifications to User
1.5 Symbol Definitions
2 Safety Features
2.1 Cotton Picker Safety Features
3 Safety
3.1 Recognize Safety Information
3.2 Understand Signal Words
3.3 Follow Safety Instructions
3.4 Spanish Safety Signs and Operator’s Manual
3.5 Replace Safety Signs
3.6 Prepare for Emergencies
3.7 Wear Protective Clothing
3.8 Protect Against Noise
3.9 Use Handholds And Steps
3.10 Keep Riders and Children Off Machine
3.11 Parking and Leaving the Machine
3.12 Instructional Seat
3.13 Use Seat Belts
3.14 Operate Safely
3.15 Transport Safely
3.16 Use Safety Lights and Devices
3.17 Avoid Electrical Power Lines
3.18 Avoid Backover Accidents
3.19 Avoid Tip-Overs
3.20 Emergency Exit (Right-Hand Cab Window)
3.21 Fire Prevention
3.22 In the Case of Fire
3.23 Fire Extinguishers
3.24 Water Type Fire Extinguisher Location
3.25 Water Fire Extinguisher?Charging
3.26 Dry Chemical Fire Extinguisher Location
3.27 Auxiliary Water System
3.28 Practice Safe Service and Maintenance
3.29 Operate Module Builder Gate and Handler Cylinder Locks
3.30 Avoid Contact with Moving Parts
3.31 Avoid Entanglement
3.32 Stay Clear Of Rotating Drivelines
3.33 Prevent Machine Runaway
3.34 Install All Guards
3.35 Support Machine Properly
3.36 Use Proper Lifting Equipment
3.37 Avoid Static Electricity Risk When Refueling
3.38 Handle Fuel Safely?Avoid Fires
3.39 Handle Starting Fluid Safely
3.40 Handle Chemical Products Safely
3.41 Refilling Diesel Exhaust Fluid (DEF) Tank
3.42 Decommissioning ? Proper Recycling and Disposal of Fluids and Components
3.43 Handling Batteries Safely
3.44 Work In Ventilated Area
3.45 Carbon Dioxide Emissions (CO?)
3.46 Avoid Hot Exhaust
3.47 Clean Exhaust Filter Safely
3.48 Remove Paint Before Welding or Heating
3.49 Welding Near Electronic Control Units
3.50 Avoid Heating Near Pressurized Fluid Lines
3.51 Avoid High-Pressure Fluids
3.52 Service Accumulator Systems Safely
3.53 Protect Against High Pressure Spray
3.54 Service Drive Belts Safely
3.55 Service Cooling System Safely
3.56 Service Tires Safely
3.57 Tightening Wheel Retaining Bolts/Nuts
3.58 Handle Electronic Components and Brackets Safely
3.59 Avoid Exposure to High Radio Frequency Fields
3.60 Use Proper Tools
3.61 Using Compressed Air For Cleaning
4 Safety Signs
4.1 Avoid Electrical Power Lines Decal
4.2 Use Seat Belts Decal
4.3 Use Park Brake Decal
4.4 Bypass Start Decal
4.5 In Case of Fire Decal
4.6 Do Not Ride Decal
4.7 Emergency Exit Decal
4.8 Prevent Fires Decals
4.9 Fan Shield Decal
4.10 Hot Exhaust Decal
4.11 Rotating Driveline Decal
4.12 Keep Shields in Place Decal
4.13 Hydraulic Accumulator Safety Decal
4.14 Row Unit Entanglement Decals
4.15 Hydraulic Cylinder Safety Stops Decal
4.16 Pressurized Cooling System Decal
4.17 Wrap Feed Decal
4.18 Roll Crush Decal
4.19 Wrap Rolls Decal
4.20 Entanglement Danger Decal
4.21 Do Not Stand Decal
4.22 Do Not Step Decal
4.23 Handler Lock Decal
4.24 Gate Lock Decal
4.25 Crush Hazard Decal
5 Operator’s Station
5.1 General View of Controls and Indicators
5.2 Armrest Console Controls
5.3 Multi-function Lever Palm Rest Adjustment
5.4 Accumulator Unload Button
5.5 Moistener Flush Button
5.6 Camera View Button
5.7 Row Units Raise-Lower Button
5.8 Auto Mode Engage-Disengage Button
5.9 Handler Raise-Lower Switch
5.10 Row Guidance System Engage Button
5.11 Fan Switch
5.12 Row Units Switch
5.13 Height Sensing Response Rate Dial
5.14 Height Adjust Buttons
5.15 Guidance System Enable Button
5.16 Row Guidance Offset Adjustment Dial
5.17 Wrap Request Button
5.18 Moistener System Flush Button
5.19 Moistener System Solution Pressure Adjust Button
5.20 Engine Speed Buttons
5.21 ProDrive? Transmission Controls
5.22 Park Brake Button
5.23 Anti-Slip Regulation Button
5.24 Differential Lock Button
5.25 Operator Interface Controls
5.26 Accessory Power Outlet (12 V DC)
5.27 Armrest Console Quick Reference Instructions
5.28 Corner Post Display
5.29 Lighting Control Panel
5.30 Windshield Wiper Switch
5.31 Light Switches
5.32 Hazard Lights
5.33 Hazard Lights Machines Equipped with Reverse Lights
5.34 Road Lights
5.35 Road Lights Machines Equipped with Reverse Lights
5.36 Field Lights
5.37 Field Lights Machines Equipped with Reverse Lights
5.38 Work Lights
5.39 Cab Interior Light
5.40 Heating and Air Conditioning Control Panel
5.41 Cab Temperature Control System
5.42 Radio with CD Player
5.43 Turn Radio On and Off
5.44 Adjust Brightness of the Radio Illumination (ILLUM)
5.45 Adjust Volume
5.46 Mute the Sound (MUTE)
5.47 Turn Confirmation Beep On-Off (BEEP)
5.48 Adjust Maximum Volume at Power-On (ONVOL)
5.49 Adjust Sound
5.50 Adjust Left-Right Volume Distribution (BAL)
5.51 Adjust Front-Rear Volume Distribution (FAD)
5.52 Turn Loudness On-Off (LD)
5.53 Restore Sound Settings
5.54 Station Name
5.55 Start Radio Mode
5.56 Turn RDS Comfort Functions On-Off
5.57 Select Wave Band and Memory Level
5.58 Tune to a Station
5.59 Store Station in Memory Preset
5.60 Select Station from Memory Preset
5.61 Scan Preset Stations
5.62 Scan Receivable Stations
5.63 Set Program Type
5.64 Treble Reduction During Interference
5.65 Set Key Function
5.66 Use of CDs (General Information)
5.67 Start CD Mode
5.68 Eject CD
5.69 Operating Tips About Your Audio System
5.70 Antenna
5.71 Video Camera Observation System
5.72 Steering Column
5.73 Turn Signals
5.74 Turn Signals Machines Equipped with Reverse Lights
5.75 Steering Wheel Tilt and Height Adjustment
5.76 Key Switch
5.77 Travel Brake Pedals
5.78 Operator’s Seat Adjustment
5.79 Left-Hand Armrest and Seat Back Adjustment
5.80 Right-Hand Armrest and Control Console Adjustment (Rotating Cam System)
5.81 Right-Hand Armrest and Control Console Adjustment (Slide Adjust System)
5.82 Seat Belts
5.83 Auxiliary Power Outlet Strip and Diagnostic Connector
5.84 Rear View Mirrors
5.85 Emergency Exit
5.86 Row Unit and Drum Identification
6 CommandCenter? Display Screens
6.1 Operator Interface System
6.2 Display Screen Layout
6.3 CommandCenter? Display Navigation
6.4 Display Screen?Data Area
6.5 Display Screen?Menu Area
6.6 Display Screen?Main Work Area
6.7 Diagnostic Trouble Codes at Start-up
6.8 Home Page Screens
6.9 Harvest Information Screen
6.10 Machine Configuration Screens
6.11 Daily Service Mode Screen
6.12 Engine Information Screen
6.13 Diagnostics and Calibration Screens
6.14 Active Alarms Screen
6.15 Diagnostic Readings Screens
6.16 Calibration Screens
6.17 Calibration Guidelines
6.18 Transmission Tow Mode Setup Screen
6.19 Transport Mode Screen
6.20 Round Module Builder (RMB) Service Mode Screens
6.21 Display Controls Screen
6.22 Main Application Menu Screen
6.23 Remote Software Update Application
6.24 Message Center Application
6.25 Performance Monitor Application
6.26 Display Settings Application
6.27 Layout Manager Application
6.28 Access Manager Application
7 Harvest Identification, Cotton Pro
7.1 Theory of Operation
7.2 Harvest Identification, Cotton Pro System Components
7.3 Set Up Harvest Identification, Cotton Pro on Home Page
7.4 Harvest Identification, Cotton Pro Gin/Producer Page Setup
7.5 Harvest Identification, Cotton Pro Files Page Setup
7.6 Harvest Identification, Cotton Pro Options Page Setup
7.7 Harvest Identification, Cotton Pro Counters Page
7.8 Harvest Identification, Cotton Pro Run Page
8 Operating the Machine
8.1 Operate Safely
8.2 Starting Engine
8.3 Changing Starting Fluid Can
8.4 Cold Weather Operation
8.5 Warming Engine
8.6 Idling Engine
8.7 Stopping Engine
8.8 Required Machine Stop Warning
8.9 Selective Catalytic Reduction (SCR) System Overview
8.10 Exhaust Filter System Overview
8.11 When to Disable Exhaust Filter Cleaning System
8.12 Automatic (AUTO) Exhaust Filter Cleaning Mode
8.13 Parked Exhaust Filter Cleaning
8.14 Aftertreatment Indicators Overview
8.15 EU Qualified Emergency Use ? SCR Derate Override Option
8.16 Preparing to Drive Machine
8.17 Driving Machine
8.18 Driving Machine on Public Roads
8.19 Harvesting in Auto Mode
8.20 Unload Cotton from Machine
8.21 Stopping Machine
8.22 Parking Machine
8.23 Positioning Units for Transport
8.24 Positioning Machine for Transport
8.25 Positioning Machine for Harvest
8.26 Reacting to a Plugged Row Unit
8.27 Unplugging a Row Unit
8.28 Operating Row Units in Tether Mode
8.29 Towing Machine (Engine Operational)
8.30 Freeing Mired Machine
9 Operator Presence System
9.1 Operator Presence System
9.2 Operator Presence System Check
10 Row Guidance System
10.1 Row Guidance System Information
10.2 Manual RowSense? Guidance System
10.3 AutoTrac? Guidance System Information
10.4 AutoTrac? RowSense? Guidance System Information
10.5 Guidance Mode Setup
10.6 Row Guidance System Operation
10.7 Advanced Row Guidance Settings
10.8 Guidance System Calibration
11 Header Height Control
11.1 Header Height Control Theory of Operation
11.2 Header Height Control Operation and Adjustment
11.3 Header Height Control Response Rate Adjustment
11.4 Header Height Control Initial Response Rate Settings
11.5 Header Height Control System Calibration
12 Moistener System
12.1 Theory of Operation
12.2 Moistener System Component Location
12.3 Auxiliary Water System
12.4 Moistener System Operation
12.5 Cold Weather Operation
12.6 Use John Deere Spindle Cleaner
12.7 Spindle Cleaner Storage
12.8 Use John Deere Wetting Agent
12.9 Fill Moistener System Tank
12.10 Prime Solution Pump
12.11 Adjust Solution Pump Belt Tension
12.12 Adjust Solution Pressure
12.13 Use Moistener Flush System
12.14 Minimize Spindle Buildup
12.15 Clean Solution Strainer
12.16 Clean Nozzles
12.17 Clean and Inspect Check Valve
12.18 Moistener Column
12.19 Check Moistener Column Position
12.20 Adjust Moistener Column Position
12.21 Check Moistener Column Height
12.22 Adjust Moistener Column Height
12.23 Replace Moistener Column Pads
13 Row Units
13.1 Moving Row Units
13.2 Lift Frames?Front View
13.3 Adjust Row Unit Tilt
13.4 Adjust Stalk Lifters
13.5 Adjust Plant Guides and Install Stalk Lifter Rods
13.6 Adjust Grid Bars
13.7 Adjust Pressure Plate Clearance
13.8 Adjust Pressure Plate Spring Tension
13.9 Install Scrapping Plates
13.10 Check Doffer Column Adjustments
13.11 Check Doffer Column Height
13.12 Adjust Doffer Column Height
13.13 Adjust Doffer Column Tilt
13.14 Replace Spindles
13.15 Replace Picker Bars
13.16 Remove Doffer Column
13.17 Install Doffer Column
13.18 Change Machine Configuration
13.19 Drain and Fill Row Unit Gear Cases
13.20 Drain and Replace Unit Drive Gearbox Oil
13.21 Calibrate Row Units
14 Vari-Row System (VRS) Row Units
14.1 Adjust Stationary Knife
14.2 Unplugging a Picking Unit
14.3 Remove and Replace Rotary Knife Sections
15 Air System
15.1 Theory of Operation
15.2 Air Hose Reference Chart
15.3 Duct Diagram, 6-Row 762, and 813 mm (30 and 32 in)
15.4 Duct Diagram, 6-Row 914 mm (36 in)
15.5 Duct Diagram, 6-Row 965, and 1016 mm (38 and 40 in)
15.6 Nozzle Configuration
15.7 Hose Sleeves and Hose Supports
15.8 Inspect and Adjust Cotton Fan Belts
16 Round Module Builder
16.1 Theory of Operation
16.2 Belt Routing and Roller Diagram
16.3 Measure and Change Module Diameter
16.4 Check Lower Feeder Belt Tracking
16.5 Adjust Lower Feeder Belt Tension
16.6 Clearing a Plugged Cotton Handling System
16.7 Check Module Builder Forming Belts and Pins
16.8 Inspect and Adjust Module Forming Belt Tracking
16.9 Adjust Belt Brush
16.10 Adjust Rotary Brush (If Equipped)
16.11 Replace Rotary Brush Drive Belt and Adjust Tension (If Equipped)
16.12 Replace Module Builder Belts
16.13 Repair Module Builder Forming Belts
16.14 Load Module Builder Wrap
16.15 Remove and Replace Empty Wrap Rolls
16.16 Check and Adjust Wrap Feeder and Wrap Floor Belt Tension
16.17 Adjust Wrap Load Arms
16.18 Bleed Accumulator Extension Lift Cylinders
17 Onboard Lubrication System
17.1 Onboard Lubrication System Component Location
17.2 Assemble Lubricant Transfer Pump
17.3 Fill Grease Tank
17.4 Operate Onboard Lubrication System
17.5 Bleed Grease Pump
17.6 Manual Lubrication Procedure
17.7 Clean or Replace Onboard Lubrication System Filters
18 Electrical System Service
18.1 Battery Disconnect Switch
18.2 Auxiliary Power Terminals
18.3 Rear Terminal Power Supply Fuses
18.4 Fuse Identification
18.5 Cab Fuse Block
18.6 Replacement Fuses
18.7 Replacement Bulbs
18.8 Safety Rules for Halogen Bulb Replacement
18.9 Halogen Road Light Bulb Replacement
18.10 Adjust Halogen Cab Road Headlights
18.11 LED Field Light Replacement
18.12 LED Field Light Adjustment
18.13 Replace Light Bar Field Lights
18.14 Replace Module Builder and Handler Work Lights
18.15 Beacon Light Bulb Replacement
18.16 Front Hazard Light Bulb Replacement
18.17 Rear Turn Signal and Hazard Light Bulb Replacement
18.18 Tail and Stop Light Bulb Replacement
18.19 Replace Tail Light, Stop Light and Turn Signal Bulbs Machines Equipped with Reverse Lights
18.20 Replace Reverse Light and Warning Light Bulbs Machines Equipped with Reverse Lights
18.21 Turn Signal Indicator Bulb Replacement
18.22 Dome Light Bulb Replacement
18.23 Check and Adjust Cotton Handling System Speed Sensors
18.24 Handling Batteries Safely
18.25 Preventing Battery Damage
18.26 Servicing Batteries
18.27 Charging Batteries
18.28 Using a Booster Battery
18.29 Remove and Install Batteries
19 Cab and Air Conditioning
19.1 Observe Air Conditioning Precautions
19.2 Heating and Air Conditioning System (General Information)
19.3 Removing Cab Recirculating Air Filter
19.4 Removing and Cleaning Cab Fresh Air Filter
19.5 Cleaning Cab Roof Air Inlet Screen
19.6 Removing and Cleaning Roof Air Inlet Panel
19.7 Cleaning Cab Filters
20 Engine and Drive Train
20.1 Engine Identification
20.2 Engine Accessory Belt Routing (Tier 2/Stage II, Tier 3/Stage III)
20.3 Engine Accessory Belt Routing (Tier 4/Stage IV)
20.4 Replace Engine Accessory Drive Belt
20.5 Auxiliary Fan Theory of Operation
20.6 Replace Rotary Screen Drive Belts
20.7 Rotary Screen Belt Routing
20.8 Remove and Clean Fuel Strainer
20.9 Heavy-Duty Fuel Precleaner Filter (If Equipped)
20.10 Drain Primary Fuel Filter Water Separator
20.11 Replace Primary and Secondary Fuel Filter Elements
20.12 Remove and Replace Air Cleaner Elements
20.13 Inspecting Element
20.14 Drain and Flush Diesel Exhaust Fluid (DEF) Tank
20.15 Diesel Particulate Filter Maintenance and Service (Tier 4/Stage IV)
20.16 Exhaust Filter Ash Handling and Disposal
20.17 Exhaust Filter Disposal (Tier 4)
20.18 Replace Diesel Exhaust Fluid (DEF) Dosing Filter (Tier 4/Stage IV)
20.19 Remove and Install Vari-Cool? Drive Fan Belt (Tier 4/Stage IV)
20.20 Checking and Adding Coolant
20.21 Flushing Cooling System
20.22 Filling Cooling System
20.23 Winterizing Cooling System
20.24 Clean Radiator, Cooler Cores, and Rotary Screen
20.25 Do Not Modify Fuel System
21 Wheels and Tires
21.1 Service Tires Safely
21.2 Discarded Tires
21.3 Checking Tires
21.4 Jacking up Front Axle
21.5 Jacking up Rear Axle
21.6 Adjusting Mud Scrapers (If Equipped)
21.7 Checking Guide Wheel Toe-In
21.8 Adjusting Guide Wheel Toe-In
21.9 Drive Axle Diagrams
21.10 762 mm (30 in.)?With 50 mm (2 in.) Wheel Spacer
21.11 813 mm (32 in.)?With 50 mm (2 in.) Wheel Spacer
21.12 914 mm (36 in.)?With 50 mm (2 in.) Wheel Spacer
21.13 965 mm (38 in.)?With 50 mm (2 in.) Wheel Spacer
21.14 965 mm (38 in.)?With 203 mm (8 in.) Wheel Spacer
21.15 1016 mm (40 in.)?With 50 mm (2 in.) Wheel Spacer
21.16 1016 mm (40 in.)?With 203 mm (8 in.) Wheel Spacer
21.17 Change Drive Wheel Spacing
21.18 Check Guide Axle Wheel Spacing
21.19 Change Guide Axle Wheel Spacing
22 Fuels, Lubricants, and Coolants
22.1 Handle Fuel Safely?Avoid Fires
22.2 Avoid Static Electricity Risk When Refueling
22.3 Fuel Tank?Filling
22.4 Diesel Fuel
22.5 Lubricity of Diesel Fuel
22.6 Biodiesel Fuel
22.7 Supplemental Diesel Fuel Additives
22.8 Handling and Storing Diesel Fuel
22.9 Minimizing the Effect of Cold Weather on Diesel Engines
22.10 Diesel Exhaust Fluid (DEF) ? Use in Selective Catalytic Reduction (SCR) Equipped Engines
22.11 Storing Diesel Exhaust Fluid (DEF)
22.12 Testing Diesel Exhaust Fluid (DEF)
22.13 Refilling Diesel Exhaust Fluid (DEF) Tank
22.14 Disposal of Diesel Exhaust Fluid (DEF)
22.15 Changing Diesel Exhaust Fluid (DEF) Dosing Unit Filter
22.16 Cleaning Diesel Exhaust Fluid (DEF) Tank
22.17 Diesel Particulate Filter (DPF) Service?As Required
22.18 John Deere Break-In? Plus Engine Oil
22.19 Diesel Engine Oil
22.20 Engine Oil and Filter Service Intervals
22.21 Oilscan? and CoolScan?
22.22 Hydraulic, Hydrostatic, and Transmission Oils
22.23 Final Drive and Powered Rear Axle Lubricant
22.24 Diesel Engine Coolant (engine with wet sleeve cylinder liners)
22.25 John Deere COOL-GARD? II Coolant Extender
22.26 Water Quality for Mixing with Coolant Concentrate
22.27 Testing Coolant Freeze Point
22.28 Operating in Warm Temperature Climates
22.29 Picker Bar and Spindle Lubricants
22.30 Multipurpose Extreme Pressure (EP) Grease
22.31 Row Unit Gear Case Lubricant
22.32 Alternative and Synthetic Lubricants
22.33 Lubricant Storage
23 Prestarting Checks
23.1 Check Fire Extinguishers
23.2 Check Engine Oil Level
23.3 Check Engine Coolant Level
23.4 Check Lubricant Level in Grease Tank
23.5 Check Transmission Oil Level
23.6 Check Pump Drive Gearbox Oil Level
23.7 Check Hydraulic and Hydrostatic Oil Level
23.8 Check Row Unit Gear Case Oil Level
23.9 Check Moistener System Solution Level
23.10 Avoid Static Electricity Risk When Refueling
23.11 Fill Fuel Tank
23.12 Fill Diesel Exhaust Fluid (DEF) Tank (Tier 4/Stage IV)
23.13 Inspect Tires and Check Pressures
23.14 Clean Windows, Mirrors, and Lights
24 Break-In Service
24.1 Breaking-in Engine
24.2 After 1 Hour
24.3 After 5 Hours
24.4 After 10 Hours
24.5 After 20 Hours
24.6 After 50 Hours
24.7 Between 100-375 Hours
25 Lubrication and Maintenance
25.1 Required Emission-Related Information
25.2 Changing Diesel Exhaust Fluid (DEF) Dosing Unit Filter
25.3 Cleaning Diesel Exhaust Fluid (DEF) Tank
25.4 Replace Diesel Exhaust Fluid (DEF) Tank Header Suction Screen
25.5 Decommissioning ? Proper Recycling and Disposal of Fluids and Components
25.6 Using High-Pressure Washers
25.7 Set Service Alarm Intervals
25.8 Service Interval Chart
25.9 Clean Machine Thoroughly
25.10 Adjust Access Panel Latches
25.11 Every Wrap Roll Change
25.12 Every 6 Hours of Operation
25.13 Every 12 Hours of Operation
25.14 Every 50 Hours of Operation
25.15 Every 100 Hours of Operation
25.16 Every 250 Hours of Operation
25.17 Every 400 Hours of Operation or Annually
25.18 Every 1000 Hours of Operation
25.19 Every 1500 Hours of Operation
25.20 Every 2000 Hours of Operation
25.21 Every 6000 Hours of Operation
26 Troubleshooting
26.1 General Information
26.2 Round Module Builder
26.3 Air System
26.4 Moistener System
26.5 Header Height Control
26.6 Row Units
26.7 Vari-Row System (VRS) Row Units
26.8 Lubrication System
26.9 Hydrostatic Drive System
26.10 ProDrive? Transmission
26.11 Steering
26.12 Operator Presence System and Inspection Bypass System
26.13 Engine
26.14 Electrical System
26.15 Operator’s Station
27 Transporting the Machine
27.1 Preparing Machine for Truck Transport
28 Storage
28.1 Preparing Machine for Storage
28.2 Preparing Engine for Storage
28.3 Preparing Engine for Long-Term Storage
28.4 Removing Machine from Storage
29 Torque Charts
29.1 Metric Bolt and Screw Torque Values
29.2 Unified Inch Bolt and Screw Torque Values
29.3 High Pressure Face Seal Torque Chart
29.4 Service Recommendations For Flat Face O-Ring Seal Fittings
30 Specifications
30.1 Machine Specifications
30.2 Machine Dimensions
30.3 Sound Level
30.4 Whole Body Vibration
30.5 Hand and Arm Vibration
30.6 The EC Declaration of Conformity applies only to machines which bear the CE mark EC Declaration of Conformity
30.7 Declaration of Conformity, Bosch Radio
30.8 Filter Location and Part Numbers
30.9 Product Identification and Component Serial Numbers
30.10 Keep Machines Secure
30.11 Keep Proof of Ownership
30.12 Limited Battery Warranty
31 John Deere Service Keeps You on the Job
31.1 John Deere Parts
31.2 The Right Tools
31.3 Well-Trained Technicians
31.4 Prompt Service
