Pump Suction and Discharge Fittings

(7)Inspect the grounding wire assembly for

(1) Take care when removing the body cap

fraying and for damaged of the alligator clip and

(8). This part is spring loaded and may snap off if

plug; replace if damaged.

care is not taken during removal.

(8) Inspect the spout for crakes, distortion,

(2) To remove the packing (21) from the

and damaged thread; replace a damaged spout.

stuffing box (22), it may be necessary to use a small

(9) Inspect the body for cracks, damaged

wire hook to dislodge the packing from its seat.

threads, and distortion; replace a damaged body.

b. Cleaning and Inspection.

( 1 0 ) Inspect all other parts for crakes,

(1) If a repair kit for the nozzle assembly is

distortion, damaged threads, and other damage;

available, discard all removed parts which have a

replace damaged parts.

replacement in the kit.

(2) Clean all remaining parts with an ap-

c. Reassembly. Reassemble the nozzle as shown

proved cleaning solvent; dry thoroughly. FIush

in figure 4-12. Note the following:

(1) If a kit is being used to repair the nozzle,

solvent through the screen in a direction opposite of

normal fluid flow to wash all foreign particles from

install the parts of the kit to replace the old nozzle

parts.

the screen.

(2) When installing the packing nut (19),

(3) Inspect the screen for tears or holes which

could allow foreign particles to pass through.

tighten the nut so that the stem (15) slides in the

packing without binding. Back off the nut if the

Replace the screen if it is defective.

(4) Inspect the operating lever for wear.

stem binds.

especially at the pivot point. Replace the lever if it

4-29. Pump Suction and Discharge Fittings

a. Removal and Disassembly.

is worn or damaged.

(5) Inspect the stem for wear. scoring, and

(1) Remove the drain plug (1, fig. 4-13) to

bends. Replace if damaged.

drain the fluid from the pump body.

(6) Inspect the spring for distortion and

compression. Replace the spring if it fails to hold

the upper poppet tightly to the seat.

4-19