Table 4-1. Organizational Preventive Maintenance Checks and Services (Continued)
M = Monthly
A/R = As Required
Q = Quarterly
H = Hourly
ITEM TO BE INSPECTED
NO. M A/R
NOZZLE ASSEMBLY (Continued)
DO NOT use hard metal objects or probes to clean air
cap holes or fluid nozzle.
DO NOT use tools to tighten knurled ring. Tighten it
by hand. Too much force will damage the air cap and
DO NOT use too much force to tighten fluid nozzle.
Too much force will damage the Teflon gasket.
Figure 4-16. Air Cap
a. Make sure air cap is not plugged or blocked.
(1) Remove knurled ring and air cap.
(2) Soak the air cap in acetone (0-A-51F) to dissolve the gunk and varnish.
(3) Unplug the air cap holes with a toothpick.
(4) Wipe all exposed air cap surfaces with a clean rag.
Figure 4-17. Fluid Nozzle