Barko Hydraulics 40 User manual

Owner’s Manual
BARKO
HYDRAULICS, LLC
Office: Superior, Wisconsin
Mailing address: P.O. Box 6227
Phone: [phone]
Duluth, Minnesota 55806
Model:
Year:
Machine Serial Number:
1972 thru 1981
40, 60, and 80 Gear & Rack
The information and illustrations in this manual have
beenapprovedasaccurateduringthetimethemachine
was current. However, the manual may contain
informationonoptionsnotpresentonyourloader. The
right is reserved by Barko Hydraulics, LLC to make
changes and improvements in it's product at anytime
without notice or obligation.
Back to Listing of Old Books
NOTE: The Model 40 was also known as the 4230 and 4000.
The Model 60 was also known as the 6230 and 6000.
The Model 80 was also known as the 8170 and 8000.
This manual covers all configurations from 1968 thru 1971.

NOTE: In some cases not all of the components listed will be on your machine.
NOMENCLATURE
- Hydraulic Pressure Warning Sheet
- Parts Ordering Instructions
- Model Description
- Loader Mounting Instructions
- Control Functions
- Barko Loader Paint
- Tool List
STRUCTURAL
- Head & Frame Assemblies
- Gear & Rack Assemblies
- Platform Assemblies
- Swing Pedal Assembly
- Cab Assemblies
- Windshield Wiper Assembly
- Hydraulic Oil Reservoir Assemblies
- Boom Assemblies
- Subframe (outrigger) Assemblies
HYDRAULIC
- Typical Single Pump Hydraulic Circuits
- Typical Tandem Pump Hydraulic Circuits
- Hydraulic Circuits
Suction, Pressure, Return Circuits
Gear & Rack Swing Circuits
Main Lift Cylinder Circuit
Jib (stick, secondary) Cylinder Circuit
Grapple Open/Close CIrcuit
Grapple Rotate Circuit
Stabilizer (outrigger) Circuits
- Cylinders
Main Cylinders
Jib (stick, secondary) Cylinders
Stabilizer (outrigger) Cylinders
Components are grouped in order of machine model with 40's being first, then 60, then 80.
- Pump Assemblies
Single Pumps (Vickers 21gpm)
Single Pumps (Vickers 28gpm)
Single Pumps (Commercial 25 gpm)
Single Pumps (Commercial 31 gpm)
Tandem Pump (Vickers)
Tandem Pump (Commercial)
- Motor Assemblies
Swing Motor (rotary actuator)
- Valve Bank Assemblies
- Valve Section Assemblies (25P)
- 25P Valve Servicing Information
- Low Lock Valve Assembly
- Relief Valve Assembly (rear mounts only)
- Filter Assemblies
SAFETY/OPERATING/SERVICE
- Table of Contents for this section
DECALS
- Decal Kits/Locations
Table of Contents