5
4.3. INSTRUCTIONS FOR ANNUAL MAINTENANCE OF THE LIFT...................... 30
4.3.1. Inspect thoroughly the support outriggers and the outrigger cylinder joints ................ 31
4.3.2. Check the frame structures, the boom system, the work platform and the platform carrier
31
4.3.3. Check thoroughly the tow hitch and the overrun ......................................................... 32
4.3.4. Inspect thoroughly the hydraulic hoses, pipes and connections.................................. 32
4.3.5. Inspect the axle and the suspension ........................................................................... 32
4.3.6. Check thoroughly the condition of the brakes.............................................................. 32
4.3.7. Check electro-hydraulic rotary adaptor........................................................................ 32
4.3.8. Inspect thoroughly the turning device ..........................................................................33
4.3.9. Inspect thoroughly the Flyer-chains............................................................................. 34
4.3.10. Inspect the cylinders, and lubricate the joint bearings ................................................. 35
4.3.11. Check the battery, the electrical appliances and the wiring ......................................... 36
4.3.12. Measure hydraulic pressures....................................................................................... 36
4.3.13. Inspect the condition and functionality of the operating controls ................................. 37
4.3.14. Signs, labels and machine plates ................................................................................ 37
4.3.15. Instruction manuals...................................................................................................... 37
4.3.16. Check the attachment and condition of the safety devices.......................................... 37
4.3.17. Check the operation of the safety limit switches.......................................................... 38
4.3.18. Check the operation of the overload limit switches RK4 and RK5............................... 39
4.3.19. Test loading.................................................................................................................. 41
4.3.20. Check the lights ........................................................................................................... 42
4.3.21. Inspect thoroughly the driving device ..........................................................................42
4.3.22. Lubricate the slide and threads of the jockey wheel .................................................... 42
4.3.23. Changethehydraulicoilandthelter .........................................................................42
4.3.24. Inspect the anti-corrosion treatment ............................................................................ 42
4.4. ADJUSTING THE MOVEMENT SPEEDS......................................................... 43
4.5. ADJUSTING THE OVERLOAD LIMIT SWITCHES........................................... 46
4.6. SPECIAL INSPECTION .................................................................................... 46
4.7. INSPECTION DISASSEMBLED........................................................................ 47
5. INSTRUCTIONS FOR FAULT-FINDING ................................................................... 58
5.1. PROBLEMS RELATED TO POWER SUPPLY AND START-UP ....................... 58
5.2. OPERATIONAL PROBLEMS RELATED TO MOVEMENTS............................. 60
5.3. DRIFTING OF BOOM OR OUTRIGGERS........................................................ 62
5.4. PROBLEMS RELATED TO TOWING................................................................ 64
6. HYDRAULIC SYSTEM .............................................................................................. 66
6.1. GENERAL INFORMATION OF HYDRAULICS ................................................. 66
6.2. HYDRAULIC DIAGRAM.................................................................................... 66
7. ELECTRIC SYSTEM ................................................................................................. 69
7.1. ELECTRIC COMPONENTS.............................................................................. 69
7.2. ELECTRIC DIAGRAM....................................................................................... 78