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Read articles →This is a detailed hands-on install video for adding a Construction Attachments true third-function valve kit to a TC33D, done to run an incoming grapple. It walks through unboxing every kit component, deviates from the printed instructions on valve placement and explains why, routes and connects hydraulic hoses with quick connects, and covers wiring the solenoid into the fuse block. Best for owners planning their own third-function install rather than shoppers comparing tractors.
Posted by the Sakima's Ridge Homestead channel, an owner documenting their own DIY install on their personal tractor.
The instructions put the valve on the loader arm, but that arm comes off with the loader, making it hard to hook up the grapple since hydraulic lines run through there.
He removed a terminal from an existing fuse block hot wire, added a pigtail for battery power, and ran it to a fifteen amp fuse instead of using the provided piercer connection.
He states it should not matter since it runs on twelve volts rather than through a diode, so either wiring orientation should still energize the solenoid.
