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Leading global supplier of marine deck hardware, Harken gear dominates events like the America's Cup, the Volvo Ocean Race, and the Olympics. Blocks, travelers, winches, and hydraulics are aboard everything from the smallest dinghies to the largest megayachts. 
View our range of Deck Hardware from Harken here >> 
150 Cam-Matic® Cleat Rebuild Video 
Step-by-step instructions to rebuild your Harken 150 Cam Cleat. 

Springs & Boots 

Should I use a stand-up spring or boot? 
Both stand-up springs and boots are used to keep blocks from hitting the deck. 
Stand-up springs are stronger and stiffer than boots, but boots can be used in a number of situations. For example: If the line might foul in a stand-up spring's rings, you can substitute a boot. 
What is the simplest way to install a stand-up spring or PVC stand-up boot? 
Take two zip ties and loop them through each side of the spring (or PVC boot). Pull the zip ties taut until the spring (boot) compresses. Now you can easily attach the block to the eyestrap, padeye, etc. After you attach the block, cut the zip ties and the spring will pop back into place. 
Boot Installation Tip: Instead of wrestling the block onto a stiff piece of PVC, soften the boot with a hair dryer (don't burn it), or soak it in warm water. This makes the boot much more pliable and easier to manipulate. When the boot cools, its shape returns to normal. 
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