Snatch-Block Maintenance
Apr 20th 2021
| In recovery and pivot winching, snatch blocks are among the most frequently used tools on carriers and wreckers. As they are rolling pulleys with moving parts, regular greasing is essential. This is especially important when snatch blocks are stored on carrier side-boxes, where they are exposed to dirt, rain, and moisture. Storing them in a small, inexpensive toolbox can protect against these conditions. | ||
| For wreckers, snatch blocks are typically stored inside toolboxes, reducing exposure to moisture. Ideally, snatch blocks should be hung from an accessible bracket inside the box. Hanging them on a toolbox door can cause the door hinges to sag over time due to the block's weight. | ||
| Since snatch blocks are crucial in recovery operations, it is the tow operator’s responsibility, not the shop's, to inspect and maintain them regularly. This ensures the block is ready for immediate use. Proper maintenance includes greasing components like safety clips and swivel hooks, preventing issues such as a rusted twist knob | ||
| A functioning pulley wheel is essential to keep the winch cable centered in the block's groove. If the wheel seizes, the cable may shift to the edge, causing damage. Operators should also visually inspect for damaged side plates and ensure the twist knob is tightened correctly but can be easily reopened after use. | ||
| If a side plate isn’t properly closed, even a small gap can cause the winch cable to get caught, leading to potential safety hazards. A quick five-minute greasing of the snatch block's components, including the knob’s threads and hook’s swivel head, can maintain optimal functionality. | ||
| When rigging snatch blocks for winching, a functioning safety clip is required when attaching to D-rings or other recovery points. While it’s tempting to leave inspections to company mechanics, tow operators should take responsibility for ensuring their snatch block is fully operational. Regular inspection should be part of their routine, and snatch block maintenance should be included in the company’s pre-trip or daily inspection forms. |