Pilot Valve Removal
STEP 1
Using the screwdriver, remove three
“Phillips Pan-Head Screws” in order to
remove the “Retaining Plate”. Repeat
for other side of the pump.
STEP 2
Remove the “Diaphragm Rod” and the
“Pilot Sleeve Assembly” from the “Inter-
mediate”.
STEP 3
Remove both “Lip Seals (Diaphragm
Rod)” and both “End Spacers (Pilot
Sleeve)” from the “Pilot Sleeve As-
sembly”. Remove both “O-Rings (End
Spacer)” from both “End Spacers (Pilot
Sleeve)”.
TOOLS NEEDED
1) One Screwdriver, Phillips #2
2) Two Wrenches, 3/4 Inch
WARNING
Prior to servicing the pump, ensure that the air
and fluid lines are closed and disconnected. While wearing personal
protective equipment, flush and drain process liquid from the
pump.
WARNING
Maintenance must not be performed when a hazardous
atmosphere is present.
STEP 4
Remove three “Inner Spacers
(Pilot Sleeve)” and four “O-Rings (Pilot
Sleeve)” from the “Pilot Sleeve Assem-
bly”.
STEP 6
Remove the “Pilot Sleeve” from the dis-
assembled “Diaphragm Rod Assembly”.
Repair and Assembly
STEP 5
Using two 3/4 inch wrenches, disas-
semble the “Diaphragm Rod Assembly”
into its two parts.
Note: They are installed with thread
locker.
P h o n e : ( 5 8 5 ) 4 2 6 - 0 9 9 0
www.lutzjescoamerica.com
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17
Operation & Maint
enance Ins
tructions
AODD: 2” Air Operat
ed Double Diaphragm Pum
p
