Service Information - Graco A Series Instructions-Parts List Manual

Care Of Fluid Solenoid Valves
The solenoid valve is normally closed; foreign matter
could hold valve open, preventing it from stopping fluid
flow.
Before attempting to service the solenoid valve, stop
pump and open dispensing valve controlled by solenoid
valve to relieve pressure in line, and shut off valve ahead
of solenoid.
To clean solenoid valve; unscrew operator retaining
nut, remove operator and pull piston from body; clean
parts and seat in body and blow air into body to clear
fluid passageways. See Fig 11.
Put parts back into body and dispense fluid to see if held
open conditiQn has been corrected - if not, replace
solenoid valve.
NOTE:
Dispense fluid at dispensing valve controlled
by solenoid valve cleaned or replaced until all
air is purged from system.
OPERATOR RETAINING NUT
7
IN
OUT
I
Fig 11
SERVICE INFORMATION
Listed below by the assembly changed are DELETED,
OLD and NEW parts.
I
ASSEMBLY PART REF PART NAME
CHANGED STATUS NO. NO.
I
215-411
Series to f3
DELETED
OLD
NEW
OLD
NEW
105-418 Capacitor
176-720 Panel
217-014 Panel Assy
176-72 1 Panel
217-015 Panel Assy
I
215460 OLD 104-210 Switch
Series to B NEW 13 106-111 Switch
I
I
215-461
OLD 104-210 Switch
Series to B NEW 13 106-111 Switch I
INTERCHANGEABILITY NOTE: NEW parts replace
OLD parts listed directly above them.
12
307-362