Case 850E, 855E Crawler Service Manual PDF

This Service manual covers the Case 850E and 855E Crawler models. It provides detailed technical information for servicing, maintaining, troubleshooting, and repairing the crawler and its major systems. The manual includes general service specifications, standard torque values, fluids and lubricants, engine and fuel-system procedures, electrical systems, tracks, power train, brakes, hydraulics, and mounted equipment.

The service procedures in this manual are intended for qualified technicians. Always follow the manufacturer's safety guidelines and service recommendations, and use the required tools and approved procedures when performing maintenance or repairs.

Service Information and Repair Procedures
The manual provides general service information, including standard torque specifications, machine specifications, recommended fluids and lubricants, and Loctite product information.

The engine section covers engine stall tests, radiator removal and installation, detailed engine specifications, cylinder head and valve train, cylinder block, lubrication and cooling systems, turbocharger service, and turbocharger failure analysis.

The fuel system section includes fuel system and filter procedures, CAV and Bosch fuel injection pumps, and fuel injector service.

The electrical section provides electrical specifications, troubleshooting information and schematics, as well as service procedures for the starter, starter solenoid, batteries, instrument panel, gauges, and alternator.

The track section covers undercarriage fundamentals, track component inspection, Case lubricated tracks, sealed tracks and track frames, idlers, track adjusters, recoil housings, sprockets, carrier rollers, and track rollers.

The power train section includes specifications, schematics and troubleshooting for the power train, torque converter and housing, transmission control and modulator valves, transmission, and final drive.

The brake section provides removal and installation procedures for the brake valve, brake system bleeding, and brake service information.

The hydraulic section covers hydraulic specifications, troubleshooting and schematics, hydraulic system cleaning, control valves and pumps, loader and dozer control valves, cylinders, backhoe control valves, and stabilizer control valves.

The mounted equipment section includes pedals and levers, air-conditioning troubleshooting and servicing, loader, dozer blade, backhoe, ripper, ROPS cab and canopy, and suspension seat information.

Table of Contents: 

General

Section Index - General 
Standard Torque 
Specifications 
Fluids and Lubricants 
Loctite Product Chart

Engine

Section Index - Engine 
Engine Stall Tests 
Removal and Installation of Radiator and Radiator Removal and Installation 
Detailed Engine Specifications 
Cylinder Head and Valve Train 
Cylinder Block 
Lubrication System 
Cooling System 
Turbocharger 
Turbocharger Failure Analysis

Fuel System

Section Index - Fuel System 
Fuel System and Filters 
Fuel Injection Pump - CAV 
Fuel Injection Pump - Bosch 
Fuel Injectors

Electrical

Section Index - Electrical 
Electrical Specifications, Troubleshooting and Schematic 
Starter and Starter Solenoid 
Batteries 
Instrument panel and Gauges 
Alternator

Track

Section Index - Track 
Undercarriage Fundamentals 
Inspection of Track System Components 
Case Lubricated Track 
Sealed Track and Track Frame 
Idler, Track Adjuster and Recoil Housing 
Sprocket
Carrier Roller 
Track Roller

Power Train

Section Index - Power Train 
Specifications, Schematic and Troubleshooting 
Torque Converter and Torque Converter Housing 
Transmission Control Valve 
Modulator Valve 
Transmission 
Final Drive

Brakes

Section Index - Brakes 
Removal and Installation of Brake Valve and Removing 
Air from the Brake System 
Brake 
Valve Brakes

Hydraulics

Section Index - Hydraulics 
Removal and Installation of Control Valves and Pump 
Specifications, Troubleshooting and Schematics 
Cleaning the Hydraulic System 
Equipment Pump Loader Control Valve 
Dozer Control Valve 
Cylinders 
Backhoe Control Valve 
Stabilizer Control Valve

Mounted Equipment

Section Index - Mounted Equipment 
Pedals and Levers 
Air Conditioning Troubleshooting 
Discharging and Charging 
Air Conditioning System Air Conditioning Compressor and Clutch 
Loader 
Dozer Blade 
Backhoe 
Ripper 
ROPS Cab and Canopy 
Suspension Seat

PDF Delivery

After your purchase is confirmed, the manual will be sent electronically to the email address provided with your order. Delivery usually takes approximately 1–10 minutes. Please double-check your email address at checkout and look in your spam or junk folder if you do not receive the message.

Printable PDF and Customer Assistance

The manual is supplied as a printable PDF file, so you can print any service procedure, technical specification, diagram, troubleshooting section, or repair instruction when needed and have it available in the workshop.

If you have questions about the manual or require assistance with your order, our support team is available to help. Customer support is also provided after purchase.