2026 New Model Isuzu boom truck SQS125-4 Instruction Book Manual, also named Isuzu boom crane truck SQS125-4 User Guide, SQS 125-4 Owners and Instruction Manual or XCMG SQS125-4 Product Instruction, all the book we put in the Isuzu truck cabin. This Isuzu boom truck adopt Isuzu GIGA 4X cabin chassis, Isuzu 4HK1 205HP diesel engine, MLD 6-shift gearbox, 5500mm cargo box. XCMG SQS125-4 is a 5-ton straight-arm truck-mounted crane with a pentagonal high-strength steel arm structure, a maximum lifting torque of 125kN·m, and supports 360° full rotation. Its design takes into account both compactness and efficiency, and is suitable for plant construction, logistics loading and unloading, and is particularly good at lifting heavy materials such as steel beams and plates in areas with limited space. II. Core Performance Features Structural Design Boom System: The pentagonal cross-section arm improves bending resistance, and the single-cylinder cable synchronous telescopic mechanism achieves a maximum arm length of 12.42 meters. The load-bearing telescopic stability is better than the industry standard. Hydraulic System: Double pump confluence technology supports compound actions, and the hoisting efficiency is increased by 15%. It is equipped with a radiator and universal hydraulic oil for all seasons, which can adapt to working conditions of -20℃ to 50℃. Operation capacity The maximum lifting mass is 5 tons, the lifting height of 14.2 meters and the amplitude range of 0°-75° can cover the needs of most medium and high-rise buildings. The span of the outriggers is adjustable from 2280mm to 5500mm, and it is equipped with a support plate interface to ensure the stability of soft foundation operations. Intelligent safety function The final position automatic hook retraction device reduces 10% of non-operating time, and the anti-overwinding alarm system monitors the lifting limit in real time. The throttle linkage technology reduces fuel consumption by 15%, and the high-position seat and double-sided ladders improve operating comfort. III. Operation specifications Lifting preparation Check that the outriggers are fully extended and locked to ensure that the ground bearing capacity is ≥0.3MPa. Run without load for 3 minutes to test the hydraulic system pressure (rated 23MPa) and the response of the slewing mechanism. Operation process It is forbidden to carry a telescopic arm with load, and the amplitude angle must be ≥30° to prevent structural impact. Pause when the weight is 0.5 meters off the ground, and continue to lift after confirming the balance, and the swing amplitude is controlled within 5°. Car collection steps The boom is retracted to the shortest state, the hook is fixed to the storage rack, and the hydraulic lock control lever is reset to the horizontal position. IV. Maintenance cycle Project cycle/conditions Operation requirements Hydraulic oil replacement ...
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