WILDEN PUMP & ENGINEERING, LLC
26
WIL-10131-E-01
AIR VALVE DISASSEMBLY:
CAUTION: Before any maintenance or repair is attempted,
the compressed air line to the pump should be discon-
nected and all air pressure allowed to bleed from the
pump. Disconnect all intake, discharge, and air lines.
Drain the pump by turning it upside down and allowing
any fluid to flow into a suitable container. Be aware of
hazardous effects of contact with your process fluid.
The Wilden Plastic P8 utilizes a revolutionary Pro-Flo
®
air
distribution system. A 13 mm (1/2") air inlet connects the air
supply to the center section. Proprietary composite seals
reduce the co
efficient of friction and allow the P8 to run
lube-free. Constructed of Acetal, the Pro-Flo
®
air distribution
system is designed to perform in on/off, non-freezing, non-
stalling, tough duty applications.
TOOLS REQUIRED:
3/16" Hex Head Wrench
7/32" Hex Head Wrench
Snap Ring Pliers
Phillips Head Screwdriver
O-ring Pick
Step 2.
Figure 2
Remove muffler plate and air valve bolts
from air valve assembly exposing muffler
gasket for inspection
.
Replace if neces-
sary.
Step 3.
Figure 3
Lift away air valve assembly and remove
air valve gasket for inspection
.
Replace if
necessary.
Step 4.
Figure 4
Remove air valve end cap to expose air
valve spool by simply lifting up on end
cap once air valve bolts are removed
.
Step 1.
Figure 1
Loosen the air valve bolts utilizing a 3/16" hex head wrench
and then remove muffler plate screws with a Phillips head
screwdriver.
S e c t i o n 7 B
PRO-FLO
®
AIR DISTRIBUTION SYSTEM (ADS) DISASSEMBLY
