Troubleshooting
16
3A1186A
Troubleshooting
General
Problem
Cause
Solution
Unit doesn’t prime
Airleak due to loose suction nut
Tighten suction nut.
Airleak due to worn o-rings
Replace o-ring (108526) on suction seat and
suction hose (331290), if so equipped.
Hole in suction hose
Service outlet valve suction assembly.
Stuck or fouled balls
Unit primes but has poor or no
pressure
Pressure set too low
Turn up pressure.
Filter(s) are clogged
Clean or replace gun filter, inlet filter, and/or
manifold filter.
Outlet valve fouled/worn.
Service outlet valve.
Prime/pressure relief valve
bypassing
Clean or replace prime valve.
Packings and/or piston worn
Tighten packing nut, repack unit.
Unit does not maintain good
spraying pressure
Blown spray tip
Replace spray tip.
Packings and/or pistons worn
Repack unit.
Upper seat worn
Replace upper seat.
Содержание 3A1186A
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