Technical data

22.7 After every 1000 working hours or after every
working year
Perform: Washing, Function Testing, Testing according to the
capacity plates
Check: Identification plates, Capacity plates
Checklist in accordance with ISO 9927-1
Element Checks to be carried out:
Subframe Tightening torque of the fixing rods, wear
Structure and fixing rods and any deformation, actions
For crane with rack:
Base Lubrication, tightening torque of the rods,
Rack group, compensator wear and any deformation, actions
For crane with slew ring:
Base Lubrication, tightening torque of the screws
Slew ring group, compensator wear and any deformation, actions
Outriggers Greasing of extension supports, oil-leaks,
Supports, rams, base plates wear, actions, inspection of hoses
safety catches, hoses
Rotation cylinders Oil-leaks, chromium plating,
Cylinders, pistons, seals, any deformation, inspection of hoses
Column Lubrication, wear and any deformation, actions
Inner boom connection, outrigger
connection, pins, bushes
Inner boom Lubrication, wear and any deformation,
Pins, outrigger connections actions
Inner ram Oil-leaks, chromium plating,
Cylinder, rod, piston, seals, hoses any deformation, inspection of hoses
Outer boom Lubrication, wear and any deformation, actions
Pins, outrigger connections
Outer ram Oil-leaks, chromium plating, strains,
Cylinder, rod, piston, seals, hoses inspection of hoses
Extension booms Lubrication, wear and any deformation, actions
Guide shoes, pins, outrigger connections
Extension rams Oil-leaks, chromium plating,
Cylinder, rod, piston, seals, hoses any deformation, inspection of hoses
Hydraulic jib Lubrication, wear and any deformation, actions
Booms, pins, outrigger connections
Rams (hydraulic jib): Oil-leaks, chromium plating, any deformation,
Cylinder, rod, piston, seals, hoses inspection of hoses
Winch Lubrication, wear and any deformation, actions
Torque limiter, brake, rope slide guide,
cable, stroke end, pulleis
Distributors, deviators, valves Checking of the pressure, oil-leaks, wear and
Control levers, forks, joints, any deformation, actions,
fixing screws, lead seals
Lifting moment limiting device Checking of the pressure, oil-leaks
Valves, pressure switches, electrovalves
Power take-off, pump, oil-tank Pump capacity, checking of the pressure, oil change,
Filters, hoses replacement of filters, inspection of hoses
22.7
MAINTENANCE
INSTRUCTIONS
GRU FASSI