2020 - Volume #44, Issue #1, Page #31[ Sample Stories From This Issue | List of All Stories In This Issue | Print this story | Read this issue]
Powered Quick-Attach Saves Time, Is Safer
“Getting in and out of my 743 Bobcat in the winter to manually lock and unlock the quick-attach levers was a real pain,” says McLaen.
He considered building a remote controlled release that is hydraulically operated like newer Bobcats have. “That requires knowledge and plumbing wizardry I don’t have,” he says. “Plus there is the risk of accidental hydraulic feedback. It could cause the quick-attach locking system to move by itself and allow the attachment to fall off.”
McLaen decided to go with an electric actuator. He ordered a 500-lb. capacity, 12-volt linear actuator from The Surplus Center (www.surpluscenter.com; ph 800 488-3407). The 8-in. stroke cylinder was equipped with a built-in clutch. It prevents jamming when the cylinder ends travel.
The actuator was about a foot short of the length needed to attach to the 2 levers. A local blacksmith machined a couple of 6-in. long brackets to fit on the ends of the actuator and attach to the locking levers. He added pivot pins to connect the brackets and the levers.
“I made a series of marks on the locking levers where I thought the pivot pins should go,” says McLaen. “Once I found the sweet spots, I drilled holes and welded in 7/16-in. pivot pins.”
McLaen also added a 30-amp, DC polarity, reversing toggle switch to control the actuator. “I mounted the toggle switch on the overhead dash in the cab along with a fuse holder,” he says.
When a winter snowstorm hit, the locking system was put to the test. McLaen switched back and forth between multiple attachments over a 5-hr. period.
“It worked as good and fast as a factory-installed, hydraulically-operated unit,” says McLaen. “It was great to be able to just push up and down on the toggle switch and watch the locking levers move up or down instead of getting in and out of the cab.”
Cost for the actuator and the toggle switch was $215. The fuse holder and wire ran another $20.
“If the actuator were to get damaged, I can remove it by removing 2 pivot nuts and wire connectors,” says McLaen. “That would let me use the locking levers as before.”
Contact: FARM SHOW Followup, Dale McLaen, McLaen’s Service, 13756 Hwy. 11, Rutland, N. Dak. 58067 (ph 701 724-6232; firstname.lastname@example.org).
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