ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
TEST OR INSPECTION
Step 4. Check valve vent (6) on bottom of treadle valve (4) for foreign matter as follows: drain air system
(page 2-1034). Using 1/4-inch flat-tip screwdriver, pull back diaphragm (7) and check for
foreign matter or other restrictions.
a.If foreign matter or other restriction is found in valve vent (6), using 3/8-inch box-end
wrench, unscrew and take off nut (8), and diaphragm (7). Using 1/4-inch flat-tip
screwdriver, unclog any foreign matter and clean. Put diaphragm (7) in place,
screw on and tighten nut (8) using 3/8-inch box-end wrench. If air pressure is still
not exhausted, replace treadle valve (4) (page 2-1052).
b.If foreign matter is not found, replace treadle valve (4) (page 2-1052).