5-63. MONITOR AND NOZZLE - Continued
Death or serious injury could occur if compressed air is directed
against the skin. Do not use compressed air for cleaning or
drying unless the pressure is/has been reduced to 30 psi (2.11
kg/cm2) or less. When working with compressed air always use
chip guards, eye protection and other personal protective
After washing, dry all components using compressed air.
Inspect outlet tee (3), siamese (5) and base (15) for obvious physical damage. Check O-ring grooves
for burrs or nicks. Check bearing races for excessive wear.
Inspect gears (27 and 39) for worn or damaged teeth. Be sure set screws (28 and 38) are below top of
gear teeth and are not loose. If set screws are not firmly seated, remove set screws, clean threads,
coat threads with retaining compound (Item 7, Appendix E) and reinstall.
Inspect all mounting hardware. Bolt and screw heads must not be rounded. Threads must not be
stripped or distorted. Replace any damaged mounting hardware.
Apply pipe thread sealant (Item 2, Appendix E) to the threads of inlet (41). Install inlet (41) in base
Using match marks to ensure correct positioning, install rotational gear (39) on base (15) with six
If setscrews (38) are being installed, apply retaining compound (Item 7, Appendix E) to threads before
Install new O-ring (37) in groove on base (15). Lubricate O-ring with silicone grease (Item 11,
Install base (15) in siamese (5).
Locate the threaded hole in base flange of siamese (5) and insert fifty-six balls (36) through hole.
Install plastic swivel plug (35) in hole that balls were inserted through. Tighten plug (35) until it stops,
then back out plug 1-2 turn. Base (15) should rotate freely in siamese (10) after installation of balls
(36) and swivel plug (35).
Locate threaded hole in raised boss on siamese (5) and insert fifty-six balls (34) through hole.
Repeat step (7) with plug (33).
(10) Install two grease fittings (42) in siamese (5). Inject grease (Item 11, Appendix E) into the grease
fittings (42) while rotating base (15). Inject grease until it becomes visible from the bleeder holes in
swivel plugs (33 and 35). Repeat process for both grease fittings.
(11) Install rotational gear guard (32) with four screws (31).