Hand Brake - Part 1

This blog cover the installation of a handbrake.

Construction

The valve selected was one on the shelf that close's both ports. To activate the valve a remote cable is fitted onto the lower panel. 

Grove Brake Valve
Part # 06-01261

T-Handle dash control is manufactured from aluminium and brass. Locks positively, will not vibrate loose. One-fourth turn locks it in any position and will hold up to 100 lbs. All part numbers are from Aircraft Spruce Catalog Installation A hole was drilled in the lower panel as detailed on the layout drawing then the handle was installed with the hardware supplied. A mounting bracket was folded from 0.040'' 2024-T3 aluminium, treated and then match drilled to suit the valve. The valve is secured to the bracket using M5 screws and rivet nuts installed into the bracket. Note: Valve mounting holes drilled from 3/16'' [4.8 mm] to 5.5 mm. Valve and mounting brackets Bolts to be trimmed and cable bracket to be riveted The bracket was fitted to the firewall using three [3] 4 x 8 mm and cable attachment was fitted with two [2] 3.2 x 8 mm pop rivets from the firewall side. Next the valve was fitted and the cable offered up to the valve and trimmed to suit. A bracket was then manufactured and fitted with an aluminium clamp fitted to the cable outer and the wire inner terminated into a wire swivel from the parts box. Hand Brake System T handle lock nut replaced with nylock half nut Finishing A suitable label will be printed to suit the operation and fitted under the T handle on a 0.020'' aluminum plate at a later date.