Regular inspection of a truck mounted crane plays a major role in keeping lifting work stable and predictable across construction sites, transport yards, and service operations. Careful checks help owners and operators identify wear, confirm safe operating condition, and reduce the chance of unexpected downtime during lifting tasks.

Visual Review of the Crane Structure

A visual walk-around allows inspectors to spot surface cracks, bent sections, paint damage, or rust formation along the boom, column, and base frame. Weld seams require close attention, especially near load-bearing joints and mounting points, since repeated lifting cycles place constant stress on these areas.

Boom Sections and Extension Movement

Each boom section should slide smoothly during extension and retraction without jerking or unusual noise. Inspectors often look for scoring marks, uneven wear, or grease buildup along sliding pads and guide rails. Proper lubrication condition supports controlled movement during lifting and positioning work.

Hydraulic Hoses and Fittings

Hydraulic hoses, pipes, and fittings should remain free from leaks, bulges, or surface cracking. Connection points around valves and cylinders deserve careful observation, since pressure changes can loosen fittings over time. Clean hose routing reduces abrasion against metal edges during crane movement.

Hydraulic Cylinders and Seals

Cylinder rods should maintain a smooth surface finish without pitting or scoring that could damage seals. Oil residue near rod ends may indicate seal wear. Checking cylinder alignment helps confirm even load distribution during lifting and lowering motions.

Wire Rope and Hook Assembly

Wire ropes require inspection for broken strands, flattening, corrosion, or uneven winding on the drum. The hook body should retain its original shape, with the safety latch operating freely. Any sign of deformation suggests the need for replacement before further lifting work.

Outriggers and Support Components

Outriggers support crane stability during lifting operations, making their condition a key inspection focus. Inspect sliding beams, extension locks, and hydraulic cylinders for wear or damage. Pads and footplates should remain flat and free from cracks to maintain even ground contact.

Control Valves and Operating Panels

Control levers, switches, and panels must respond smoothly without sticking or delay. Clear labeling and firm mounting improve operator confidence during lifting tasks. Any unusual resistance or delayed response can point to internal valve issues or contamination.

Load Limiting and Safety Devices

Safety devices such as load limit indicators, alarms, and cut-off functions support controlled lifting within rated capacity. Inspectors often test these systems under light load conditions to confirm correct response and signal accuracy.

Mounting Bolts and Chassis Connection

The connection between crane and truck chassis handles constant vibration and load transfer. Mounting bolts should remain tight and free from elongation or thread damage. Frame inspection around mounting areas helps detect early signs of stress or fatigue.

Lubrication Points and Service Records

Grease points across the crane structure should receive attention during inspection routines. Proper lubrication reduces friction and slows component wear. Reviewing service records helps confirm consistent inspection history and identifies areas that