WIL-10183-E-04 18
P4 Clamped Metal
Step 1 Step 2 Step 3
Loosen the air valve bolts utilizing a 3⁄16"
Hex Head wrench.
Remove muffler plate and air valve bolts
from air valve assembly exposing muffler
gasket for inspection. Replace if necessary.
Remove air valve end cap to expose air
valve spool.
AIR VALVE DISASSEMBLY
Tools Required:
3/16ʺ Hex Head Wrench
1/4ʺ Hex Head Wrench
Snap-Ring Pliers
O-Ring Pick
CAUTION: Before attempting any maintenance or repair, disconnect the compressed
air line to the pump and allow all air pressure 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 any hazardous effects of contact
with your process fluid.
NOTE: Replace worn parts with genuine Wilden parts for reliable performance.
DISASSEMBLY / REASSEMBLY
DISASSEMBLY / REASSEMBLY
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