Paragraph 111b(2). 1 is added after paragraph 111 (2).
b
(2).1 Unscrew the right and left spraybar valves (5) from the close nipples (3) leading to the spraybar line tee (2)
Model W15A4112).
Paragraph 111d (6).1 is added after paragraph 111d (6).
(6).1. On model W15A4112, screw left and right spraybar valves (5, fig.
34.1) on close nipples (3) leading from
the discharge line tee (2).
Page 65.
Paragraph 11lle (6), line 3, after (9) add "and (10, fig.
34.1)."
Page 66.
Paragraph 114.1 is added after paragraph 114.
114.1 Hoses (Model W15A4112)
a. Removal.
(1) Loosen clamp (10, fig. 34.1)securing hose (9) to right spraybar valve line at the elbow (8) and clamp (10)
securing hose (9) to lower right spraybar Y-bend nipple (13) and remove right hose (9).
(2) Loosen clamp (10) securing hose (9) to left spraybar valve line at the elbow (8) and clamp (10) securing hose
(9) to lower left spraybar Y -bend nipple (13) and remove left hose (9).
b. Installation.
(1) Position hose clamp (10, fig. 34.1) on both ends of hose (9).
(2) Position one hose on right spraybar valve line at elbow (8) and on lower right spraybar Y-bend nipple (13) and
tighten both upper and lower hose clamps (10).
(3) Position remaining hose (9) on left spraybar valve line at elbow (8) and on lower left spraybar Y-bend nipple
(13) and tighten both upper and lower hose clamps (10).
Page 67. Paragraph 115.1 is added as follows:
115.1. Spraybar and Extensions (Model W15A4112)
a. Removal.
(1) Close discharge valve (22, fig.33) and open spraybar valve (5, fig. 341).
(2) Loosen setscrews and remove shear pin (34).
(3) Remove hose clamps (10) and remove spraybar hoses (9) from nipple (13) on lower spraybar Y-bend and from
elbow (8) on spraybar valve line.
(4) Remove pivot nuts (20) from pivot spool (19).
(5) Disconnect spraybar (39) at couplings (38)
(6) Remove slip joint (16) from elbow (18).
(7) Disconnect spraybar extension (24) at coupling (22).
(8) Unscrew spraybar nipple (40)from coupling (38) and elbow (18).
b. Disassembly.
(1) Disconnect remaining couplings (22) and unscrew spraybar extensions (24 and 25) from coupling halves.
(2) Remove all nozzles (23) by unscrewing them from spraybar sections.
c. Cleaning, Inspection and Repair.
(1) Clean all parts with an approved cleaning solvent and dry thoroughly.
(2) Clean all threads with a wire brush.
(3) Inspect all piping and fittings for damage. Repair or replace a damaged part.
(4) Inspect nozzles for damaged or clogged orifice. Replace a damaged nozzle.
(5) Inspect O-ring seals and replace if damaged or defective.
d.
Reassembly.
(1) Install the nozzles in spraybars.
(2) Screw spraybar extensions into couplings.
(3) Screw spraybar (39) into extension elbow (18).
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