Figure 6-55. Installing plug - 10935522 in cylinder bore

N o t e . Wipe all air bubbles from cylinder

(n) Turn the REJECT knob (on

walls. Bubbles may cause false alarm signal.

pulser / receiver unit) counterclockwise to

(C ) Place the search fixture in the cylinder

" O F F " . The echo pulse height will then return to

with the fixture flange resting on the cylinder

2 - 1 / 2 inches high.

mounting flange (figs. 6-56 and 6-57).

(o) Remove the search fixture from the

m a s t e r checking gage. The cylinder barrel tester

is now calibrated in preparation for cylinder

inspection.

N o t e . Steps (f) through (o) above, should be

preformed twice each eight hour shift to assure

accuracy of the tester.

(2) C y l i n d e r i n s p e c t i o n .

( a ) Clean and degrease the cylinder bore.

Remove rust if present.

(b) Position the cylinder with the bore

facing upward using suitable protection for the

cylinder head. Insert plug, part No. 10935522

( f i g . 6-55) in the cylinder bore until it bottoms.

Pour water into the cylinder and fill to about five

inches from the top. Refer to paragraph d (3)

(a).

Figure 6-56. Positioning ultrasonic search

fixture in cylinder bore.

Figure 6-55. Installing plug - 10935522 in

cylinder bore.

6-65