Shutdown engine (para 2-8b), and loosen locknut (2), and adjust spring adjustment nuts (3) on spring assemblies
(4) on each side of cylinder attachment until there is no space between nuts (3), spring spacer (5), and spring (4)
using a 1-1/8 in. open end wrench.
Start engine (para 2-8a) and lower brush by moving valve lever (6) until it catches in full lowered position.
Raise brush (1), and measure width of area contacted by brush (para 2-8h).
Ideal width of brush contact (brush pattern) should be 2-4 in. (5 to 10 cm).
If brush pattern (7) is wider than 4 in. (10 cm), increase spring tension by turning adjusting nuts away from brush.
If pattern is less than 2 in. (5 cm) decrease spring tension by turning adjusting nuts toward brush.
Repeat steps (3) through (5) until correct pattern is attained. Tighten locknuts (2) against adjusting nuts (3) to
secure spring tension. Shut down engine (para 2-8b).
END OF TASK