Pilot Valve Assembly
To assemble the pilot valve, reverse the order of disassembly. Should process flu
-
id have contact with the pilot valve O-Rings, they should be replaced as swelling
may occur and cause irregular operation. During assembly, ensure that the open
side of the lip-seals are facing outward. Lubrication of the pilot sleeve assembly,
with a non-synthetic lubricant, is recommended in order to facilitate re-assembly
into the intermediate. Magna-Lube or Magna-Plate are recommended for assem-
bly lubrication (see detailed parts list for ordering information).
Torque Specification Chart
RECOMMENDED TORQUE SPECIFICATIONS
2” Pumps
Chamber Bolts
20 ft-lbs (27.1 N-m)
Air Valve Bolts
40 in-lbs (4.52 N-m)
Diaphragm Plates
372 in-lbs (42.0 N-m)
Manifold Bolts
20 ft-lbs (27.1 N-m)
Note: Always torque the chamber bolts prior to the manifold bolts. When reassembling, loosely tighten all external fasteners ad-
justing and aligning gradually, in an alternating fashion, tighten to torque requirements listed above.
Note: When using pumps built with PTFE O-Rings, always replace with new PTFE O-Rings, since the original O-Rings may not re-
seal the pump.
P h o n e : ( 5 8 5 ) 4 2 6 - 0 9 9 0
www.lutzjescoamerica.com
Fax: (585) 426-4025
18
Operation & Maint
enance Ins
tructions
AODD: 2” Air Operat
ed Double Diaphragm Pum
p
