SERVICE MANUAL & ICA
10000 AMPHIBIAN FLOATS ON AIR TRACTOR AT-802A
Page 56
Revision U
P/N 1002545
On the top aircraft hopper door, aft side, is a domed shaped overfill relief door. This door is hinged and spring
loaded to blow open in the event of a tank overfill. The spring tension is pre-set by cable length. To open the door
by hand, release the handle from its holder and pull forward to release the stop from its holder and let the cable
go slack. The door is now free to hinge. To reattach, pull cable forward so cable ball is in its holder and stow
handle.
7.1 DESCRIPTION AND OPERATION
CHAPTER 7 - VENT AND OVERFILL PROTECTION SYSTEM
No adjustment is necessary for this system. The cable lengths determine the pressure on the spring. It should
unseat at approximately 40 pounds of force.
7.2 ADJUSTMENT AND TEST
No service is necessary except to examine the condition of the cables, canvas defector, and all other parts.
7.3 SERVICE OVERFILL VENT SYSTEM