Description
Liebherr PR711 Crawler Loader Operating Manual
Liebherr PR711 Crawler Loader Index:
MACHINE DESCRIPTION
Diesel Engine
Splitter BOX
Hydraulic System
Main Frame, Steel Structure, Covers
Undercarriage
Operator’s Platform, Cab and Canopy
Attachments
TECHNICAL DATA PR 741 C .
Dimensions Basic Machine
TRANSPORT DIMENSIONS AND WEIGHTS
Basic Machine
Operator’s Cab
Canopy
Track Guard (1 piece)
Straight Blade
Push Arm – left With Hydr. Tilt Cylinder and Brace
push Arm • right with Braces
Angle Blade w. Braces
“C” Frame
Single Shank Ripper
Multi Shank Ripper
Winch
Swinging Drawbar
Counterweight
GENERAL TECHNICAL DATA
Engine Installation
Engine Data
Ai r Cleaner
Coupling – Engine to Splitter box
Cooling System/Capacity .
Fuel System / Capacity
Spl itter box/Capacity
Hydraulic System
Closed Loop Hydrostatic Drive
Attachment Hydraulics
Control Valve
Pilot (servo) Control Valve
Servo Pum p
Hydraulic Tank
Hydraulic Oil Cooler
Hydraulic Oil Filters
Undercarriage
Travel Drive
Electrical System
Cab Heater/Fresh Air
Attachments
Blade Lift Cylinder
Blade Tilt Cylinder(Straight Blade)
Ripper Cylinder
Blade Tilt Cylinder (Angle Blade)
CAPACITIES
V-BELTS
COLD START DEVICE
FILTER ELEMENTS/ O-RINGS
Engine Filters
Hydraulic Filters
Cab Filters
O-Ri ngs
SAFETY INFORMATION
Accident Prevention
General Safety Information
Crushing and Burn Prevention
Fire and Explosion Prevention
Machine Start-up Safety
Engine Start-up and Operation Safety
Machine Operating Safety
Machine Towing and Pulling Safety
Machine Parking Safety
Machine Transportation Safety
BEFORE STARTING THE ENGINE
Check Engine Oil Level
Check Coolant Level
Check Electrical System/Battery
Check Fuel System/ Fuel Level
Check Air Filter/Vacuum Indicator
CONTROLS AND INSTRUMENTATION
O perator’s Cab
Operator’s Seat
Cab Heater/Fresh Air
OPERATION
Start-up Procedures
Starting the Engine
Starting the Engine at Low Ambient Temperatures with KBI Cold Start System
Low Idle Automatic – Ecomat
Stoppi ng./Parking the Machi ne
Travel Functions
Straight Travel
Counter Rotation
Turning left/right in forward or reverse
Turning – Power Turn
Brake Operation
Hi/Low Travel Speed Selector
Towing
Attachment Operation
Blade – Raise/Lower
Blade – Float Position
Hydraulic Blade Tilt (Straight and Angle Blade)
Blade Pitch Adjustment (Straight Blade)
Manual Adjustment of Angle Blade
Manual Tilt Adjustment of Angle Blade
Ri pper Attachment Operation
Tilting the Cab/Canopy
Raise (tilt) Cab
Lower Cab
MAINTENANCE
Diesel Engine
Engine Air Intake System
Servicing the Air Cleaner
Dry Cleaning
Wet Cleaning
Primary Element Inspection
Primary Element Installation
Inspection of the Air Intake and Pre-Cl eaner
Fuel Tank/Hydraulic Tank
Fuel
Hydraulic System
Check and Clean the Magnetic Rod
Replace Hydr Tank Filter
Replace Servo Oil Filter
Replace Replenishing Oil (Spin on) and In Line Filters on the Travel pumps
Splitterbox
Hydraulic System Maintenance and Repair
Hydraulic Cylinders
Travel Gear
Travel Gear Maintenance
Travel Gear Parking Brake
Track Components
TO Tighten Track Tension
TO Release Track Tension
Check Tightness of Track Pads and Sprocket Segments
Check and Adjust the Idler Guides
Cleaning the Track Components
Replace Track Chain
Remove Sealed Track Chain
Install Sealed Track Chain
Remove SALT Chain
Install SALT Chain
Electrical System
Ba ttery Mai ntenance
TO Replace Fuses
Heatingand Fresh Air System
Attachments
Cutting Edges and Corner Shanks
Blade Mounting, Push Arms and Braces
Ri pper Shanks and Teeth
Replacement of Wear and Tear Items
Piston Rod Preservation
MAINTENANCE GUIDELINES
Daily
Every 250 Operating Hours
Every 500 Operating Hours
Every 2000 Operating Hours
Lubrication Chart
Lubrication poi ntS
TORQUE CHART
ELECTRICAL SCHEMATIC
