Liebherr A 922 Excavator Operation & Maintenance Manual – PDF DOWNLOAD

Description

Liebherr A 922 Excavator Operation & Maintenance Manual – PDF DOWNLOAD

FILE DETAILS:

Liebherr A 922 Excavator Operation & Maintenance Manual – PDF DOWNLOAD

Language : English
Pages : 110
Downloadable : Yes
File Type : PDF

DESCRIPTION:

Liebherr A 922 Excavator Operation & Maintenance Manual – PDF DOWNLOAD

INTRODUCTION:

• This manual has been prepared to acquaint you with the operation and maintenance of your LIEBHERR machine.
  It contains important safety information, as well as valuable reference data such as capacities and
  tightening torques. Unless specific values ar~ given, all threaded connections should be tightened according
  to the torque charts.
• The descriptions in this manual are brief and precise. They are support ed by photographs and drawings. All
  information is itended to simplify maintenance procedures.
• WE URGE YOU TO READ THIS MANUAL CAREFULLY. Correct maintenance procedures will give the machine
  a long service life. Before starting a job, you must read the applic<!ble section of the manual and know
  the maintenance procedure to be performed. It is essent ial to keep the machine, ·parts, tools and your w orking
  area clean and orderly. Following the recommendations in this manual w ill help make your LIEBHERR
  equipment profitable, safe and trouble-free.
• To determine service intervals, use the hour meter. However, calender intervals (daily, weekly, etc.) sometimes
  provide a more convenient method of scheduling required maintenance. ·
• Under severe conditions such as extremely high or low temperatures, dusty or wet job sites, etc., more frequent
  maintenance t hat indicated by the schedule may be necessary.
• Some drawings and photographs in this ma~ual may show details which are different from your machine.
• Improvements in design may cause changes in your machine not reflected in this manual. All manuals are
  reviewed and updated periodically to include such design changes.
• Shou·ld you have any questions regarding the information in this manual or your LIEBHERR machine, please
  contact your LIEBHERR dealer. He knows your equipment best and is interested in your complete satisfaction.

TABLE OF CONTENTS:

Liebherr A 922 Excavator Operation & Maintenance Manual – PDF DOWNLOAD

TECHNICAL DAT A
Basic dimensions
Optional chassis (undercarriage)II
Transport dimensions 111
GENERAL TECHNICAL DATA
Engine:
Hydraulic system:
Air cleaner, coupling 1
Hydraulic pump, control valves1
Servo control, servo pump· 1
Hydraulic oil tank, hydraulic oil – cooling system 1
Hydraulic oil filter2
Compressed air system2
Swing gear 2
Electrical system · 2
Heater2
Fuel system 2
Rotary connection 2
Travel drive: Brakes, tires, travel speed2
CAPACITIES 3
FILTER ELEMENTS4
V-BELTS4
GENERAL MACHINE DESCRIPTION
Engine, hydraulic system5
Hydroil cooling, fuel system, swing drive compressed air system, steering 6
Travel drive, travel brakes, operators cab 7
Ventilation & heating, covers & sound suppression, uppercarriage, swing lock8
SAFETY INFORMATION – Europaeische version9 – 1 0
US SAFETY INFORMATION11-17
OPERATING THE A 922
BEFORE STARTING THE ENGINE
Engine oil level, radiator (coolant level), cooling circuit , electrical system19
V-belt tension19
Fuevsystem, air filter, compressed air system, hydraulic oil level20
CONTROLS AND INSTRUMENTATION21-23
DESCRIPTION OF CONTROLS, SYMBOLS, GAUGES – WITH LIEBHERR ENGINE24/25
DESCRIPTION OF CONTROLS, SYMBOLS, GAUGES – WITH DEUTZ ENGINE 24a/25a
Starting the engine 24/24a
Key positions24/24a
Energizing the electrical system (key position 1 l 24/24a
Starting the engine at O °C (32 °F) and above 24/24a
Starting the engine w/preheat at -12 °C ( 10 °F) and above 25/25a
Engine speed (RPM) control ‘ 25/25a
Engine shut off procedure, 25/25a
OPERATORS SEAT
Seat adjustment 26
TRAVEL FUNCTIONS
Parking brake function27
Gear selection – on/off road27
Travel forward/reverse selection 27
Brake system28
Uppercarriage (swing) lock ·28
Oscillating axle stabilizer 29
Outriggers/dozer blade 29
Emergency flasher 29
Servo ciruit cut off during on road travel 29
ATTACHMENT OPERATION
Working position- 30
Pilot (servo) valve functions •30
Pilot (servo) valve left (swing and stick) 30
Pilot (servo) valve right (boom/outriggers and bucket/clamshell)31
Swing brake 32
Hydraulic hammer operation33
Boom lock valve33
Grapple/clamshell rotator operation 33
VENTILATION AND HEATING
Ventilation and heater operation 34
Sunroof (air vent)35
MAINTENANCE RECOMMENDATIONS
Liebherr diesel engine – engine oil change37
– cooling and fuel system 38
Bleed fuel system · 39
Deutz diesel engine – see Deutz Operators & Maintenance Manual40
Swing – and travel brakes, wheel cylinders41
Bleeding the brake system41
Parking brake42
Swing gear, axles, king pins · 43
Bleeding the stabilizer – oscillating axle44
HYDRAULIC ·SYSTEM
Hydraulic oil cooling system 45
Tank- return oil filter, magnetic rod cleaning, filter change 45
Hydraulic system repairs ,46
Suction hose from tank to pump – 46
Bleeding the hydraulic pump 4 7
Hydraulic cylinders, 47
Servo system4 7
Servo filter 4 7
Cleaning/replacing of servo filter , 4 7
COMPRESSED AIR SYSTEM
System pressure, pressure regulator maintenance 48
Dual air pressure gauge, tire inflat ion48
Tire pressures, antifreeze pump 48
Recommendations for summer/winter ·operation49
Drain air tanks 49
Air compressor (Deutz engine only) 49
Check and/or adjust V-belts, replace air compressor 49
ENGINE AIR INTAKE SYSTEM
Engine air filter maintenance50
Dry cleaning the primary filter element _ 51
Wet cleaning the primary filter element52
Safety element 52
ELECTRICAL SYSTEM
Battery maintenance, fuse replacement53
HEATING SYSTEM
System maintenance 54
SWING RING LUBRICATION
Lubrication, maintenance, inspection 54
REPLACEMENT OF WEAR AND TEAR ITEMS 55
ON ROAD–TRAVEL · 55
PRESERVATION OF PISTON ROAD56
TRANSPORTING THE EXCAVATOR 56
FUSE BOXES
Inst rument panel 57
Junction box58
OVERLOAD WARNING DEVICE 59-61
REMOVE AND INSTALL ATTACHMENTS 62-70
INSPECTION (MAINTENANCE) SCHEDULE 7 1-73
ELECTRICAL SCHEMATIC
LUBRICATl~N CHART

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PLEASE NOTE:

• This is the SAME manual used by the dealers to troubleshoot any faults in your vehicle. This can be yours in 2 minutes after the payment is made.
• Contact us at [email protected] should you have any queries before your purchase or that you need any other service / repair / parts operators manual.

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