All-Flo A050 Series 1/2 Aluminum - Manual (Page 18)

all-flo.com 18
PILOT VALVE REMOVAL
STEP 1
Using the screwdriver, remove
three “Phillips Flat-Head Mach
Screws (#6-32 x 7/16)” in order to
remove the “Retaining Plate”.
Repeat for both sides of the pump.
STEP 2
Remove the diaphragm rod and
the pilot sleeve assembly from the
“Intermediate”.
STEP 3
Remove both “Lip Seals
(Diaphragm Rod)” and both “End
Spacers (Pilot Sleeve)” from the
pilot sleeve assembly. Remove
both “O-Rings (End Spacer)” from
both “End Spacers (Pilot Sleeve)”.
REQUIRED TOOLS
1) One Screwdriver, Phillips
2) Two Wrenches,
7 /
16
Inch
WARNING
Prior to servicing the pump, ensure that the air
and fluid lines are closed and disconnected. While wearing personal
protective equipment, flush, drain and process liquid from the
pump in a safe manner.
STEP 4
Remove three “Inner Spacers
(Pilot Sleeve)” and four “O-Rings
(Pilot Sleeve)” from the pilot
sleeve assembly.
STEP 6
Remove the “Pilot Sleeve” from
the disassembled “Diaphragm
Rod Assembly”.
REPAIR AND ASSEMBLY
STEP 5
Using two 7/16 inch wrenches,
dissemble the “Diaphragm Rod
Assembly” into its two parts.