Crane Two-Blocking Warning Sticker – Danger Hook Block Contact

This crane two-blocking warning sticker displays a DANGER header with a triangular alert symbol above an illustration of hook-block contact at a telescopic crane boom tip. Printed arrows identify winch pull, boom extending and boom down movements.

This product is a warning decal, not an anti-two-block (A2B) device, sensor, switch, weight or control system.

Printed Two-Blocking Warning

DANGER
TWO BLOCKING THE CRANE WILL CAUSE
DEATH, SERIOUS INJURY,
OR PROPERTY DAMAGE

Do not allow the hook block to contact the boom tip by hoisting up, extending or lowering the boom.

What the Illustration Shows

The artwork depicts the hook block contacting the boom tip, the two-blocking condition addressed by the printed warning. The movement arrows illustrate how hoisting up, boom extension or lowering the boom can bring those components together. They are printed parts of the illustration, not separate arrow stickers.

The quoted warning describes the label content, not a promise that the sticker prevents two-blocking. Follow your crane manufacturer's instructions for operation, anti-two-block equipment, inspections and maintenance.

Two-Block Warning Decal Details

• Size: 3¾ inches wide × 4¾ inches tall
• SKU: CBt-001
• English-language vertical design
• Red, black and white warning with a hook-block/boom-tip illustration
• Vinyl decal
• Non-OEM replacement reference: 7376007245
• Created, printed, cut and shipped in the USA

Choosing Your Replacement Label

This is a non-OEM replacement decal, not an original equipment manufacturer part. Compare reference 7376007245, the dimensions, full wording and artwork with your equipment's required replacement label before ordering. The reference alone does not establish compatibility with every crane model.

A warning label does not replace required anti-two-block equipment, a load moment indicator, rated capacity limiter or other crane safety equipment. It does not establish OSHA, ASME or ANSI compliance or guarantee accident prevention.

Recommended Placement

For a cab-operated telescopic crane, we recommend a visible interior cab panel near the hoist and boom controls where the warning can be read from the seated operating position without obstructing windows, instruments or load charts. For a ground-control boom truck, we recommend a visible panel beside the crane controls that can be read before operating the hoist or boom.

These are general recommendations, not verified factory positions for every model. Use the original warning-label location when known and follow the manufacturer's decal-location diagram. Do not cover controls, rating plates, instructions or other warnings. Follow the decal's application instructions and prepare a clean, dry surface; do not apply over grease or oil.

Spanish-Language Alternative

For the Spanish-language warning design, compare the CBt-001SP Spanish crane two-blocking sticker. Both versions are listed at 3¾ inches wide × 4¾ inches tall. Their illustrations differ, so compare the full artwork and required language before selecting your replacement.