Hoisting Mobile Toilet Loading and Unloading

The loading and unloading of hoisting mobile toilets should follow standardized operating procedures, focusing on hoisting methods, loading and unloading preparations, operating norms, and handling of special types. The specific key points are as follows:

I. Selection of Hoisting Methods

1. Applicable Scenarios: Steel-structured or color-steel mobile toilets (mainly medium to large-sized) are usually hoisted, with hoisting structures preset by the manufacturer at the factory.
2. Requirements for Hoisting Rings and Straps: The toilet top should be equipped with 4 hoisting rings and welded with special hoisting straps no less than 6 meters long. During hoisting, a separate strap should be used to hang each hoisting ring. Oblique hoisting is strictly prohibited, as it may lead to hook disengagement or box deformation due to a shift in the center of gravity.
3. Matching of Crane Tonnage: Select crane specifications according to the number of toilet compartments:
   • 2-4 compartments: 12-ton or above crane;
   • 5-6 compartments: 16-ton or above crane;
   • 7 compartments or more: 20-ton or above crane.

II. Preparations Before Loading and Unloading

1. Treatment of the Sewage System:
   • Packaged or biological degradation toilets can be moved directly;
   • Water-flush direct-discharge toilets should have the downspouts disconnected in advance to prevent sewage leakage.
2. Internal Cleaning and Weight Reduction: Empty the water tank and remove trash bins to prevent liquid spillage or debris movement during transportation.
3. Securing Movable Parts: Close and lock doors and windows tightly, and remove loose accessories such as tissue boxes and hooks for separate carrying to prevent collision damage during transportation.

III. Operating Norms for Loading and Unloading

1. Selection of Hoisting Points:
   • The hoisting ropes should be hooked onto the special hoisting points at the bottom. Binding to the walls is prohibited, as it may cause box deformation;
   • For flat-roof toilets, the hook position is the stress point; for pointed-roof toilets, the stress point is near the pointed roof.
2. Transportation Requirements: The vehicle should travel at a low and steady speed, with equipment secured to prevent displacement due to bumps. For long-distance transportation, cover with a waterproof cloth.
3. On-site Installation: After the equipment lands, lower it slowly, use a level to calibrate the flatness, install anti-slip pads at the four corners, and adjust the tilt difference until the box is stable and does not shake.

IV. Handling of Special Types Power-trailer mobile toilets (suitable for long-term frequent movement scenarios) come with wheels and a towing frame at the bottom and can be directly hitched to the rear of a vehicle like a trailer without the need for a crane. However, ensure that the towing frame is firmly connected and comply with traffic regulations.

Precautions: Operators should wear safety protective equipment, check the wear of hoisting tools before hoisting, and suspend operations in adverse weather conditions (such as strong winds or heavy rain) to ensure safety.