Graco 24G979 用户手册

NOTE: Check all possible solutions before disassembling the pump.

Uneven spray pattern

Bead pressure too low

Increase pressure to bead tank, or adjust 
bead pressure regulator

Spray gun will not stop spraying

Gun needle binding

Clean, repair

Obstructed or worn needle seat

Clean or replace

Spray gun will not spray

Bead line clogged

Clear

Bead valve closed

Open

Clogged orifice or needle seat

Clean

No trigger or actuator air pressure

Check, clean air lines

Wet beads

Drain beads from tank and replace with dry 
beads