Chapter 5 General Reference 109
FREQUENCY ITEM KEY INSPECTION DESCRIPTION STATUS
• Stabilizer or auxiliary control valve(s)
Hydraulic cylinders for drifting, rod seal leakage and leakage at welds.
Rods for nicks, scores and dents. Case for damage. Case and rod
ends for damage and abnormal wear.
• Jib extension cylinder(s)
Winch, sheaves and drums for damage, abnormal wear, abrasions
and other irregularities.
Hydraulic filters for replacement per maintenance schedule.
All daily inspection items.
All monthly inspection items.
All quarterly inspection items.
Hydraulic fluid change per maintenance schedule.
Control valve calibration for correct pressure & relief valve settings.
Safety valve calibration for correct pressure & relief valve settings.
Valves for failure to maintain correct settings.
Rotation drive system for proper backlash clearance & abnormal wear,
deformation and cracks.
Gear oil change in rotation drive system per maintenance schedule.
Check tightness of all fasteners and bolts, using torque specifications
on component drawings or torque chart.
Wear pads for excessive wear.
Loadline for proper attachment to drum.