Field Troubleshooting - AIRLESSCO Spay & Stripe 3000 Service & Operation Manual

Field Troubleshooting

PROBLEM
Unit doesn't prime
Unit primes but has no
or poor pressure
Unit does not maintain
good spraying pressure
16
CAUSE
Airleak due to:
• Loose Suction Nut
• Worn O-Rings
• Hole in Suction Hose
Stuck or Fouled Balls
Pressure set too low
Filter(s) are clogged
Outlet Valve fouled/worn
Prime/Pressure Relief valve
bypassing
Packings and/or piston worn
Blown spray tip
Packings and/or piston worn
Upper Seat worn
SOLUTION
• Tighten Suction Nut
• Replace O-Ring (106-011) on
suction seat, & O-Ring (106-
020) below suction seat
• Replace Suction Hose (331-290)
Service outlet valve suction
assembly
Turn up pressure
Clean or replace gun filter, inlet
filter and/or manifold filter
Service outlet valve
Clean or replace primve valve
• Tighten packing nut
• Repack unit
Replace spray tip
Repack unit
Replace upper seat