4.3.1. Inspection of chassis structures, boom, platform and platform carrier . 24
4.3.2. Inspection of support outrigger joints .................................................... 25
4.3.3. Inspection of the cylinders and lubrication of cylinder bearings ............ 25
4.3.4. Inspectionoftheyer-chains ................................................................ 26
4.3.5. Inspection of the turning device ............................................................ 27
4.3.6. Inspection of the rotating adaptor ......................................................... 27
4.3.7. Inspection of the axles .......................................................................... 27
4.3.8. Inspection of the lights .......................................................................... 27
4.3.9. Changehydraulicoilandlters ............................................................. 27
4.3.10. Inspection of hydraulic hoses, pipes and connections .......................... 28
4.3.11. Inspection of the battery, elecrical devices and wiring .......................... 28
4.3.12. Measure hydraulic pressures ................................................................ 29
4.3.13. Inspection of the condition and fastening of safety devices.................. 30
4.3.14. Inspection of correct operation of safety devices .................................. 30
4.3.15. Testingtheoutreach-andoverloadlimitswitches(RK4andRK5) ....... 31
4.3.16. Inspection of the operating controls on the platform ............................. 32
4.3.17. Test loading ........................................................................................... 33
4.3.18. Inspectionoftheanti-corrosiontreatment ............................................ 33
4.4. ADJUSTMENTOFOUTREACH-ANDOVERLOADLIMITSWITCHES .......... 34
4.5. SPECIAL INSPECTION .................................................................................... 35
5. FAULT FINDING ........................................................................................................ 36
5.1. PROBLEMS WITH POWER SOURCE ............................................................. 36
5.2. PROBLEMS WITH PLATFORM MOVEMENTS ................................................ 37
5.3. DRIFTING OF BOOM OR OUTRIGGERS ........................................................ 38
5.3.1. Driving device does not operate ........................................................... 39
6. HYDRAULIC SYSTEM ..............................................................................................40
6.1. GENERAL INFORMATION ON HYDRAULIC SYSTEM .................................... 40
6.2. HYDRAULIC DIAGRAM .................................................................................... 40
7. ELECTRIC SYSTEM .................................................................................................43
7.1. ELECTRIC COMPONENTS .............................................................................. 43
7.2. ELECTRIC DIAGRAM ....................................................................................... 50