John Deere 844J Loader Workshop Repair Service Manual PDF (OMT207807) - MJODOMT207807.zip

John Deere 844J Loader Operator's Manual (OMT207807)

omt207807 - Operator's Manual for the 844J Loader.pdf

Complete Operator's Manual for John Deere 844J Loader, with all the shop information to maintain & operate the 844J.

PRODUCT DETAILS:

Total Pages: 501 pages

File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)

Language: English

omt207807 - 844J Loader

Table of Contents

Foreword

Emission Control Statement

Technical Information Feedback Form

Section 1-1: Safety—Safety and Operator Conveniences

Safety and Operator Convenience Features

Section 1-2: Safety—General Precautions

Recognize Safety Information

Follow Safety Instructions

Operate Only If Qualified

Wear Protective Equipment

Avoid Unauthorized Machine Modifications

Add Cab Guarding For Special Uses

Inspect Machine

Stay Clear of Moving Parts

Avoid High-Pressure Fluids

Avoid High-Pressure Oils

Work In Ventilated Area

Prevent Fires

Clean Debris from Machine

Prevent Battery Explosions

Handle Chemical Products Safely

Dispose of Waste Properly

Prepare for Emergencies

Section 1-3: Safety—Operating Precautions

Use Steps and Handholds Correctly

Start Only From Operator's Seat

Use and Maintain Seat Belt

Prevent Unintended Machine Movement

Avoid Work Site Hazards

Use Special Care When Operating Loader

Keep Riders Off Machine

Avoid Backover Accidents

Avoid Machine Tip Over

Operating on Slopes

Operating or Traveling On Public Roads

Inspect and Maintain ROPS

Add and Operate Attachments Safely

Prevent Unintended Detonation of Explosive Devices

Section 1-4: Safety—Maintenance Precautions

Park and Prepare for Service Safely

Service Cooling System Safely

Service Tires Safely

Remove Paint Before Welding or Heating

Make Welding Repairs Safely

Drive Metal Pins Safely

Section 1-5: Safety—Safety Signs

Safety Signs

Section 2-1: Operation—Operator’s Station

Operator Controls

Pedals

CAN Monitor Unit (CMU)

Monitor Panel Functions

Switch Pad

Switch and Accessory Functions

Monitor Display Unit—Key Off

Monitor Display Unit—Normal Display

Monitor Display Unit—Main Menu

Monitor Display Unit—Main Menu—Codes

Monitor Display Unit—Main Menu—Codes—Active Codes

Monitor Display Unit—Main Menu—Codes—Stored Codes

Monitor Display Unit—Main Menu—Machine Settings

Monitor Display Unit—Main Menu—Machine Settings—Quick Shift

Monitor Display Unit—Main Menu—Machine Settings—Auto to 1st

Monitor Display Unit—Main Menu—Machine Settings—Job Timer

Monitor Display Unit—Main Menu—Machine Settings—Stopwatch

Monitor Display Unit—Main Menu—Machine Settings—Ride Control

Monitor Display Unit—Main Menu—Diagnostics

Monitor Display Unit—Main Menu—Diagnostics—Battery Monitor

Monitor Display Unit—Main Menu—Diagnostics—Engine Sensors

Monitor Display Unit—Main Menu—Diagnostics—Transmission

Monitor Display Unit—Main Menu—Diagnostics—Hydraulic

Monitor Display Unit—Main Menu—Diagnostics—Machine

Monitor Display Unit—Main Menu—Diagnostics—Machine Switches

Monitor Display Unit—Main Menu—Diagnostics—Machine Switches—Cab

Monitor Display Unit—Main Menu—Diagnostics—Machine Switches—Brake

Monitor Display Unit—Main Menu—Diagnostics—Machine Switches—Transmission

Monitor Display Unit—Main Menu—Diagnostics—Machine Switches—Steering

Monitor Display Unit—Main Menu—Diagnostics—Machine Switches—Misc

Monitor Display Unit—Main Menu—Diagnostics—Switch Module

Monitor Display Unit—Main Menu—Diagnostics—Machine I.D.

Monitor Display Unit—Main Menu—Monitor Settings

Monitor Display Unit—Main Menu—Monitor Settings—Units

Monitor Display Unit—Main Menu—Monitor Settings—Hide Main Menu

Monitor Display Unit—Main Menu—Monitor Settings—Backlighting

Monitor Display Unit—Main Menu—Monitor Settings—LCD Contrast

Horn Button

Turn Signals

Air Conditioning Controls and Heater Operation

Adjusting Steering Wheel Tilt

Adjusting Joystick Steering Arm Rest

Opening and Securing Side Door

Opening Side Window/Secondary Exit

Opening Rear Side Window

Adjusting Seat

Section 2-2: Operation—Operating the Machine

Inspect Machine Daily Before Starting

Engine Break-In Period

Check Instruments Before Starting

Starting the Engine

Starting Fluid—If Equipped (Cold Weather Starting Aid)

Engine Heater—If Equipped

Using Coolant Heater—If Equipped

Warm-Up

Cold Weather Warm-Up

Neutral Lock

Shifting the Transmission

Quick Shift Switch

Joystick Steering Activation/Deactivation

Park Brake Switch

Boom and Bucket Control Lever—One Lever Design

Boom and Bucket Control Lever—Two Lever Design

Ride Control—If Equipped

Secondary Steering—If Equipped

Boom Height Kickout Adjustment

Return-to-Carry Kickout Adjustment

Return-To-Dig Adjustment

Using the Loader Bucket

Backdragging

Parking the Machine

Loading Machine on a Trailer

Towing Procedure

Lifting the Machine—If Equipped With Lift Hooks

Section 3-1: Maintenance—Machine

Diesel Fuel

Lubricity of Diesel Fuel

Handling and Storing Diesel Fuel

Biodiesel Fuel

Testing Diesel Fuel

Minimizing the Effect of Cold Weather on Diesel Engines

Low Sulfur Diesel Fuel Conditioner

Alternative and Synthetic Lubricants

Diesel Engine Break-In Oil

Diesel Engine Oil

Diesel Engine Oil and Filter Service Intervals

Hydraulic Oil

Axle Gear Lubricant

Transmission and Park Brake Oil

Grease

Heavy Duty Diesel Engine Coolant

Drain Intervals for Diesel Engine Coolant

John Deere COOL-GARD™ II Coolant Extender

Supplemental Coolant Additives

Operating in Warm Temperature Climates

Additional Information About Diesel Engine Coolants and John Deere COOL-GARD™ II Coolant Extender

Testing Diesel Engine Coolant

Section 3-2: Maintenance—Periodic Maintenance

Service Machine at Specified Intervals

Check Hour Meter Regularly

Prepare Machine for Maintenance

Locking Machine Frame

Supporting the Boom

Opening Engine Side Shields and Service Doors

Opening Grille Door

Fuel Tank

Check Windshield Washer Fluid Level

Fluid Analysis Program Test Kits and 3-Way Coolant Test Kit

Service Intervals

Required Parts

Section 3-3: Maintenance—As Required

Check Tire Pressure

Tire Pressures (844J)

Tighten Wheel Retainer Nuts

Check Air Inlet Cover

Inspect Serpentine Belt

Inspect External Seal

Check Cab Fresh Air Filter—If Equipped

Check Cab Recirculating Air Filter

Inspect Air Conditioner Compressor and Alternator Belt

Check Coolant

Section 3-4: Maintenance—Every 10 Hours or Daily

Check Coolant Recovery Tank Level

Clean Air Cleaner Dust Unloader Valve

Check Engine Oil Level

Check Hydraulic Oil Level

Check Transmission Oil Level

Inspect Split Seals—If Equipped

Section 3-5: Maintenance—Every 100 Hours

Grease Loader Linkage and Cylinder Pivots (If Equipped)

Grease Front Steering Cylinder Pivots (S.N. —612719)

Grease Rear Steering Cylinder Pivots (S.N. —612719)

Grease Oscillating Rear Axle

Section 3-6: Maintenance—Initial Service - 250 Hours

Change Front and Rear Axle Oil

Change Engine Break-In Oil and Replace Filter

Section 3-7: Maintenance—Every 250 Hours

Take Engine Oil Sample

Section 3-8: Maintenance—Every 500 Hours

Check Air Intake Hoses

Check Battery Electrolyte Level and Terminals

Check Radiator Coolant Level

Replace Primary and Final Fuel Filters

Replace In-Line Fuel Filter

Replace Fast Fuel Filter—If Equipped

Check Park Brake Oil Level

Change Engine Oil and Replace Filter

Take Fluid Samples

Section 3-9: Maintenance—Every 1000 Hours

Replace Transmission Oil Filters

Replace Air Cleaner Dust Unloader Valve

Replace Air Cleaner Elements

Clean Engine Crankcase Vent Tube

Check Radiator Hoses

Replace Hydraulic System Return Filters

Replace Hydraulic Reservoir Breather Filter

Grease Frame Hinge Pivots

Change Park Brake Oil

Change Front and Rear Axle Oil

Inspect and Clean Hydraulic Pump Case Drain Fittings

Check Coolant

Section 3-10: Maintenance—Every 2000 Hours

Change Transmission Oil

Check and Adjust Engine Valve Lash and Electronic Injector Preload

Re-Run Clutch Calibration

Replace Spit Seals—If Equipped

Section 3-11: Maintenance—Every 4000 Hours

Change Hydraulic System Oil

Clean Hydraulic System Fill Strainer

Replace Engine Torsional Dampener

Section 3-12: Maintenance—Every 5000 Hours

Check Brake Wear

Inspect Drive Line Damper

Section 3-13: Maintenance—Every 6000 Hours

Replace Engine Coolant

Section 4-1: Miscellaneous—Machine

Checking Fuel Tank Vent Hose

Bleeding Fuel System

Drain Water Separator Bowl

Clean Water Separator Bowl

Checking Fire Extinguisher—If Equipped

Precautions for Alternator and Regulator

Handling, Checking, and Servicing Batteries Carefully

Using Booster Batteries—24-Volt System

Using Battery Charger

Removing and Installing Batteries

JDLink™ Machine Monitoring System (MMS)—If Equipped

JDLink™ Machine Monitoring System (MMS) Direct Laptop Connection—If Equipped

Replacing Fuses

Fuse (Blade-Type) Color Codes

Replacing Halogen Bulbs

Engine Speeds

Fluid Sampling Test Ports—If Equipped

Checking Neutral Start System

Servicing Air Conditioning System—If Equipped

Welding On Machine

Welding Near Electronic Control Units

Keep Electronic Control Unit Connectors Clean

Checking Brake Accumulators

Checking Ride Control Accumulator—If Equipped

Service Brake Bleeding Procedure

Cooling Package External Cleaning Procedure

Service Recommendations For Snap-To-Connect (STC®) Fittings

Do Not Service Control Valves, Cylinders, Pumps or Motors

Keep ROPS Installed Properly

Hardware Torque Specifications

Unified Inch Bolt and Screw Torque Values

Metric Bolt and Screw Torque Values

Section 4-2: Miscellaneous—Operational Checkout

Operational Checkout

Section 4-3: Miscellaneous—Troubleshooting

Troubleshooting Procedure

Engine

Fast Fill

Transmission

Differential And Axle

Service Brake

Drive Line

Park Brake

Hydraulic System

Air Conditioning System

Heater System

Section 4-4: Miscellaneous—Storage

Prepare Machine for Storage

Monthly Storage Procedure

Section 4-5: Miscellaneous—Machine Numbers

Record Product Identification Number (PIN)

Record Engine Serial Number

Record Transmission Serial Number

Record Hydraulic Pump Serial Number

Keep Proof of Ownership

Keep Machines Secure

Section 4-6: Miscellaneous—Specifications

844J Loader Specifications

Drain and Refill Capacities—844J