Product Manual for 360° Stationary Rotating Swivel Boom and Foldable Engine Crane

I. Product Specifications (Including Two Core Product Types, Incorporating Image Label "1000LB/2000LB")

(I) 360° Stationary Rotating Swivel Boom

(II) Foldable Engine Crane

II. Product Details

(I) 360° Stationary Rotating Swivel Boom

1. Precise Load-Bearing, Wide Scenario Adaptation: The 1000LB (450kg) model focuses on light-to-medium operations, capable of lifting agricultural machinery parts (e.g., 200kg plows) and outdoor tools (e.g., 150kg generators); the 2000LB (900kg) model focuses on heavy-duty needs, handling bundles of construction steel pipes (800kg) and large feed mixers (700kg), covering most outdoor lifting scenarios for pickups.
2. Flexible & Efficient, Easy Operation: The boom supports 360° stationary rotation, covering the operation area within a 1295mm radius without moving the pickup, improving work efficiency by 40% in narrow spaces (farmland, rural roads); the 270mm×270mm base is fixed to the truck bed via 4 sets of high-strength bolts, taking ≤30 minutes for installation without in-depth vehicle modification.
3. Durable & Universal, Adapting to Complex Environments: The boom is welded with Q345 high-strength steel, and its surface undergoes phosphating + anti-rust spray treatment, with a salt spray test of 48 hours, resisting outdoor rain and dust erosion; multiple sets of adjustment holes are reserved in the base, compatible with mainstream pickups such as Ford, Toyota, and Great Wall, requiring no customized mounting brackets and ready for use after unpacking.

(II) Foldable Engine Crane

1. Hydraulic Model: Labor-Saving & Precise: Equipped with a single-piston hydraulic pump, its operating force is only 1/3 of that of the standard model. The 4 load gears (250-1000kg) can accurately match lifting needs from small motors (300kg) to 1-ton engines. The 1500mm frame height can easily lift components to the maintenance platform, avoiding component damage or personnel strain caused by manual handling.
2. Standard Model: Stable & Reliable: With a 1470mm high frame + 978mm wide base, it can operate stably on both workshop concrete floors and outdoor dirt roads. Its weight of 76kg makes it suitable for fixed workstations; the plywood case packaging has high strength, facilitating long-distance transportation and protecting the equipment from collisions.
3. Space-Saving Folding Design: The volume of the hydraulic model is reduced by 60% after folding; the standard model can further compress storage space by disassembling wheels and shortening the frame. It is particularly suitable for scenarios with limited space such as repair shops and agricultural machinery stations, and can be stored in corners when not in use without occupying core operation areas.

III. Application Scenarios

(I) Application of 360° Stationary Rotating Swivel Boom

1. Outdoor Maintenance Scenario for Agricultural Machinery: In farmland, a pickup equipped with a 1000LB (450kg) boom lifts tractor gearboxes (approximately 350kg) and harvester cutter assemblies (approximately 400kg). The 360° rotation allows alignment with maintenance points without moving the vehicle, and the 930mm minimum radius enables close-range disassembly, avoiding strains caused by manual handling. It is particularly useful in remote areas without fixed maintenance equipment.
2. Small-Scale Cargo Transportation Scenario at Construction Sites: At construction and decoration sites, the 2000LB (900kg) boom transfers steel pipe bundles (approximately 800kg) and cement boards (approximately 600kg). The 1295mm maximum radius lifts cargo from the ground to the pickup truck bed or unloads it to the second-floor construction platform, eliminating the need for large cranes and reducing construction costs; the folded height of 1355mm does not occupy much space in the truck bed, allowing simultaneous loading of tools such as screwdrivers and electric drills.
3. Outdoor Emergency Rescue Scenario: In rural road rescue, the 1000LB (450kg) boom assists in replacing tires of faulty trucks (approximately 150kg) and lifting drive shafts of trapped vehicles (approximately 200kg). Pickups can quickly reach narrow roads where cranes are difficult to access; the 360° rotation can adapt to rescue needs from multiple angles, and the lightweight component design facilitates manual handling and assembly, improving rescue efficiency.

(II) Application of Foldable Engine Crane

1. Engine Disassembly & Assembly Scenario in Auto Repair Shops: Repair shops use hydraulic cranes to disassemble car engines (approximately 400kg) in the 500kg gear and install light truck engines (approximately 800kg) in the 1000kg gear. Hydraulic drive enables smooth lifting and lowering, avoiding collisions between the engine and the engine compartment; the 4 load gears accurately match component weights, preventing equipment damage due to overloading.
2. Heavy-Duty Maintenance Scenario in Agricultural Machinery Stations: Agricultural machinery stations use standard cranes to handle 800kg tractor engines and 600kg harvester gearboxes. The 1470mm frame height is compatible with the tall body of agricultural machinery, and the 978mm width stably supports components. It is folded for storage when not in use, saving workshop space without affecting the maintenance of other agricultural machinery.
3. Equipment Relocation Scenario in Factories: Factories use hydraulic cranes to move 300kg motors and 750kg small machine tools. The wheel set design is compatible with workshop concrete floors; a single person can operate the hydraulic pump to complete lifting. The component packaging facilitates transfer between different production lines, improving equipment deployment efficiency and reducing equipment idle time.

IV. Frequently Asked Questions (FAQs)

(I) FAQs About 360° Stationary Rotating Swivel Boom

1. What to Do If the Boom Gets Stuck During Rotation and Cannot Turn Smoothly?
   • Clean and Lubricate: First, use a high-pressure air gun to blow off impurities such as dust and hay at the rotating joint, then wipe the oil stains on the joint surface with a rag dipped in diesel; then apply Grade 3 lithium-based grease into the bearing gap (covering the bearing balls), and rotate the boom repeatedly 5-10 times to ensure uniform distribution of the grease. This usually resolves minor jamming.
   • Check the Bearing: If jamming persists after lubrication, remove the end cover of the rotating joint and check if the bearing balls are rusted, chipped, or if the cage is broken. If any of the above occurs, replace the bearing with a double-row radial ball bearing of the same model (specification: inner diameter 20mm, outer diameter 47mm, thickness 14mm). After replacement, reapply grease and install the end cover.
   • Inspect for Deformation: If there has been overloaded operation (e.g., the 1000LB model lifting over 450kg cargo) or collision recently, visually check if the boom is bent (compare whether both sides of the boom are symmetrical). If slightly deformed, it can be corrected by slowly lifting a 300kg load and fine-tuning the boom in the opposite direction; if severely deformed, contact the manufacturer to replace the boom to avoid breakage caused by forced use.
2. There Is a Gap Between the Base and the Pickup Truck Bed After Installation, and the Base Shakes During Lifting. How to Handle It?
   • Tighten Bolts Diagonally: First, loosen all base bolts, then retighten them in a diagonal order of "top-left → bottom-right → top-right → bottom-left". Tighten each bolt in 2-3 increments, with the final torque controlled at 40-45N·m (detectable with a torque wrench) to ensure the base fits the truck bed evenly and eliminate gaps.
   • Add Anti-Slip Washers: If the gap is caused by an uneven surface of the truck bed longitudinal beam, place a 3mm thick rubber anti-slip washer (cut into a 270mm×270mm square with bolt holes reserved) between the base and the truck bed. Use the elasticity of rubber to fill the gap and enhance friction between the bolts and the truck bed to prevent base shaking.
   • Adjust Mounting Holes: If the deviation between the base mounting holes and the pickup truck bed longitudinal beam holes exceeds 5mm, it will cause uneven stress on the base and create gaps. Use a drill with a 10mm diameter to slightly enlarge the holes to adjust the hole positions, ensuring bolts can pass vertically through the base and longitudinal beam, avoiding base warping caused by inclined bolts.

(II) FAQs About Foldable Engine Crane

1. The Boom of the Hydraulic Crane Cannot Lift or Lower, and the Hydraulic Pump Has No Pressure Output. What to Do?
   • Check Hydraulic Oil Level: Open the hydraulic oil tank cover and check if the oil level is below the minimum scale line (the oil tank usually has a transparent oil level window). If the oil level is insufficient, add 46# anti-wear hydraulic oil to the normal level. Too low an oil level will prevent the pump from building pressure and driving the boom to lift or lower.
   • Inspect for Pipeline Leaks: Check the connecting pipeline between the hydraulic pump and the oil cylinder. If there are oil stains (leaks) at the joints, remove the joints and replace the aged gaskets, then reinstall and tighten with a wrench to a torque of 15-20N·m to avoid pressure leakage and no output.
   • Reset the Pressure Relief Valve: Failure to close the pressure relief valve after operation will cause hydraulic oil to flow back, preventing the pump from building pressure. Tighten the pressure relief valve (usually a red knob) clockwise, then start the hydraulic pump to test the boom lifting function and confirm if the pressure is restored.
2. The Wheel Set Gets Stuck During Crane Movement, and the Crane Even Deviates from the Route. What Is the Reason?
   • Clean Impurities on the Axle: Use a brush to remove dust and metal shavings from the connection between the wheel axle and the wheel frame, then apply lithium-based grease to the axle bearings. Rotate the wheel set to test if it moves smoothly—impurity jamming is a common cause of stuck wheels.
   • Check Tire Condition: Severe tire wear (tread depth <1mm) or deflation will cause uneven stress on the wheel set and movement deviation. Replace the tire with one of the same specification (anti-slip rubber tire with a diameter of 150mm and width of 50mm is recommended); if the tire pressure is insufficient, inflate it to 0.8MPa (standard pressure) with an air pump.
   • Adjust Wheel Set Parallelism: Improper wheel set installation (front/rear wheels not parallel) will cause the crane to deviate from the route during movement. Loosen the wheel frame fixing bolts, calibrate the wheel set parallelism with a straightedge, then retighten the bolts to ensure the front and rear wheels are in the same straight line, improving movement stability.
3. The Equipment Still Occupies a Large Space After Folding. How to Optimize Storage?
   • Disassemble and Store the Hydraulic Model: Separate the boom from the main frame. Small components (such as the hydraulic pump and connectors) weighing 16kg can be stored in a tool cabinet; the 55kg main frame can be folded and placed vertically against the workshop wall, using vertical space to reduce the floor area—saving 60% of space compared to the unfolded state.
   • Disassemble and Compress the Standard Model: Remove detachable components such as wheel sets and auxiliary brackets, fold the frame to its smallest state, and secure the frame and boom with straps to avoid shaking. Store it in idle spaces such as under workshop shelves or between equipment, making full use of fragmented space without occupying core operation areas.