AIRLESSCO 450 - FIELD TROUBLESHOOTING; Unit Priming and Pressure Issues; Pressure Maintenance and Unit Running Issues

14
15
1
2
3
4
5
6
7
8
9
10
PROBLEM CAUSE SOLUTION
Unit doesn’t prime Airleak due to:
•Loose suction nut
• Worn o-rings
• Hole in suction hose
Stuck or fouled balls
• tighten suction nut
• replace o-ring (106-018) on suction seat & o-ring (106-017)
below suction seat
• replace suction hose
• service inlet and outlet valves
Unit primes but has poor
or no pressure
Pressure set too low
Filter(s) are clogged
Outlet valve fouled/worn
Prime/pressure relief valve
bypassing
Packings and/or piston worn
• turn up pressure
• clean or replace gun lter, inlet lter, and/or manifold lter
• service outlet valve
• clean or replace prime valve (100-180)
• tighten packing nut
• repack unit
Unit does not maintain
good spraying pressure
Blown spray tip
Packings and/or pistons worn
Upper seat worn
• replace spray tip
• repack unit
• replace upper seat
Unit does not run. Blown Fuse
Electrical Faliure
• replace fuse
20A Slow Blow (331-328)
• see electrical troubleshooting
FIELD TROUBLESHOOTING
FIG. 13
PARTS LIST FIGURE 13
Item No. Part No. Description
1 111-202 Base
2 301-356 Spring
3 106-007 O-Ring
4 111-204 Filter 60 Mesh
5 111-203 Support
6 111-201 Base
7 100159 Swivel
8 100-129 Plug 3/8” (2)
9 100-109 Nipple 3/8”M x 1/4”M
10 100-028 Plug 1/4”
OPTIONAL MANIFOLD FILTER (111-200-99)