This is the factory Komatsu operator manual for the 894 and 898 backhoe loaders (publication UMGB89401, serial numbers 8905439 and up), delivered as a downloadable PDF. Across its 108 pages it walks you from daily pre-start checks to full maintenance schedules, which means the machine gets serviced the way the factory intended instead of by guesswork.
Anyone who has stood beside a dead 894 at seven in the morning, unsure whether the fault is a fuse, a flat battery or an empty tank, knows how expensive that uncertainty gets. The Fault Identification section exists for exactly that moment, alongside chapters on loader and digging technique, lubricants, torques and optional equipment like the 4 in 1 bucket, pallet forks and telescopic boom.
The file carries 31 bookmarks, so you jump straight from the contents to the page you need in seconds.
What's Inside This Komatsu 894, 898 Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction and Machine Identification | 9-11 | Permissible Uses, Identification Tags, CE Markings |
| Safety and Accident Prevention | 12-28 | Safety Devices, Operating Precautions, Battery, Transporting the Machine, Maintenance Precautions, Safety Notices and Signs |
| Technical Data | 29-32 | Dimensions with Backhoe Centered and Folded, Loading Shovel Data |
| Description of the Machine | 33-45 | Safety Devices (Loading Shovel, Backhoe), Fuses and Relays |
| Cab and Driving Seat | 46-49 | Ventilation and Heating, Driving Seat, Fire Extinguisher |
| Machine Operation | 50-61 | Checks Before Starting the Engine, Loading Shovel Work, Digging, Stabilizing |
| Fault Identification | 62-65 | Empty Fuel Tank, Flat Battery, Auxiliary Start-Up |
| Maintenance | 66-92 | Fuel, Coolant and Lubricants, Tightening Torques, Maintenance Program, Occasional Maintenance, Long Idleness |
| Authorized Optional Equipment | 93-108 | 4 in 1 Bucket, Pallet Forks, Telescopic Boom, Pneumatic Drill |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Adjustment bolt (9) wrench size | 27 mm | p. 100 |
| Shoe replacement limit | 5 mm | p. 100 |
| Engine Oil Capacity (Crankcase sump) | 9L | p. 69 |
| Engine Oil Change Interval | 250 hours | p. 69 |
| Hydraulic Circuit Oil Change Interval | 1000 hours | p. 74 |
| Front Axle Oil Change Interval | 1000 hours | p. 74 |
| Rear Axle Oil Change Interval | 1000 hours | p. 74 |
| Maximum Towing Force (Towing Hook) | 6200 kg | p. 21 |
| Maximum Immersion Depth | 50 cm | p. 53 |
Komatsu 894, 898 Common Problems This Manual Covers
Engine will not start
A machine that cranks but refuses to fire is usually down to an empty fuel tank, a flat battery or an electrical fault. The Fault Identification section works through each cause in order, including start-up with auxiliary cables and checks on the electrical circuit, hydraulic circuit, converter and engine.
Manual Section: Fault Identification p. 62Dead circuits and blown fuses
Lights, wipers or gauges that suddenly stop working often trace back to a blown fuse or failed relay. The Fuses and Relay section maps the fuse carrier and shows which circuit each fuse protects, so you test the right one instead of pulling them all.
Manual Section: Fuses and Relay p. 45Hand brake will not hold
A parking brake that creeps on a slope is a common complaint on older backhoe loaders. The Occasional Maintenance section covers regulating the hand brake and setting the stroke of the brake pedal.
Manual Section: Occasional Maintenance p. 90Play in the telescopic boom
Wear in the guide shoes lets the extendible dipper develop slop that ruins digging accuracy. The Telescopic Boom for Backhoe section explains leeway adjustment of the guide rails and when worn shoes must be replaced.
Manual Section: Telescopic Boom for Backhoe p. 99Worn pins and dry joints
Skipped greasing shows up as clunking pivot pins and rapid bush wear on the loader arms and backhoe. The Maintenance Program lays out the 8-hour routine, including lubrication of the articulated joints, fluid level checks and tire pressures.
Manual Section: Maintenance Program p. 74Wrong oils and fill quantities
Topping up with a guessed grade or quantity is an easy way to damage the engine or hydraulic transmission. The Fuel, Coolant and Lubricants section gives the correct fluids and capacities, such as the 9 litre crankcase sump, plus lubrication diagrams for both stirrup configurations.
Manual Section: Fuel, Coolant and Lubricants p. 69Frequently Asked Questions
Which machines does this manual cover?
It covers the Komatsu 894 and 898 backhoe loaders with serial numbers 8905439 and up. It is the factory operator manual, publication number UMGB89401, in English, 108 pages.
Does it include service intervals and fluid capacities?
Yes. The Maintenance Program sets out the schedule, including 1000 hour oil changes for the hydraulic transmission and both axles, while the Fuel, Coolant and Lubricants section lists capacities such as the 9 litre engine crankcase sump. p. 74
Will it help me troubleshoot a machine that will not run?
The Fault Identification section covers an empty fuel tank, a flat battery, start-up with auxiliary cables, and faults in the electrical circuit, hydraulic circuit, braking systems, converter and engine. p. 62
Are tightening torques for bolts and nuts included?
Yes. The Tightening Torques for Screws and Nuts section gives both standard and specific torque values, so fasteners on the 894 and 898 go back together to factory figures. p. 73
How will I receive this Komatsu 894 Operator Manual?
Straight to your device: 108 pages of searchable Operator Manual, downloadable the moment payment goes through.
Can I print this Komatsu 894 manual?
Printing is allowed without restriction. Pull the pages you need for the job and bin them when they get greasy.
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