Dover PSG All-Flo A025-SQ, Manual, Page: 14 / 24

ALF-13210-E-01 All-Flo 14
AIR VALVE REMOVAL
TOOLS NEEDED
1) Two Wrenches,
7
/
16
Inch
2) One Screwdriver, Phillips #2
3) One Pair of Pliers
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.
WARNING
Maintenance must not be performed when a hazardous
atmosphere is present.
REPAIR AND ASSEMBLY
STEP 1
Using the pair of pliers, work the
“Air Inlet Cap” loose from the
“Intermediate”.
STEP 2
Using the pair of pliers, remove
the “Air Inlet Cap” from the
“Intermediate”. Ensure the
“O-Ring” is installed when
reassembling.
STEP 3
Set aside the “Air Inlet Cap” and
“O-Ring” from the “Intermediate”.
STEP 4
Using the screwdriver, remove
two “Phillips Pan-Head Screws”
in order to remove the “Retaining
Plate”. Repeat for other side of
the pump.
STEP 5
Using two 7/16 inch wrenches,
disassemble the “Diaphragm Rod
Assembly” into its two parts. Note
they are installed with thread
locker.
STEP 6
Remove the “Rods” and “Lip
Seals” from the “Intermediate”.
Remove the “Spring Clip
Assembly” and “Shuttle” thru the
“Air Inlet Cap”