It is OPERATOR MANUAL for Orenstein Koppel O&K crawler excavator and loader model:

RH6

Language: English
Number of pages: 60

Contents:

Introduction
Electrical System
Rod Control System
Screw Connections
Axle Journal Of Slewing Gear
Fuel System
Refueling
Slewing Gear, Top
Slewing Gear, Bottom
Adjustment Of Slewing Brake
Breathing Of Braking System
Pump Drive
Rods For Engine Speed Regulation
Hydraulic System
Magnetic Rod
Hydraulic Oil Filter
Replacing Filter Element
Change Of Hydraulic Oil
Types Of Oil
JIB
Attachments
Undercarriage
Tracks
Rollers
Treads
Travel Gear
Steering Drive Axle
Drive Axle
Lubrication Charts
Wiring Diagram
Hydraulic System Wiring Diagram
Maintenance
Technical Information & Specifications

And more..