GPI M Serie Guía De Solución De Problemas página 10

REPAIR ( CONTINUED )
Replace Bypass Poppet O-ring
1. To remove or replace the bypass poppet:
a.
b.
c.
d.
e.
NOTE: Replace O-ring if damaged, swollen or loose-fitting (see Wet
Seal Kit).
2. To assemble, place the spring and poppet into the poppet cavity
through the top outlet port. Compress the poppet into the housing until
the poppet appears in the lower chamber. Coat the O-ring lightly with
grease and slip over the poppet head. Make sure the O-ring is well-
seated.
3. Push on the poppet through the top outlet port to make sure it moves
freely.
4. Install the pipe plug again, using thread tape as necessary.
5. Replace the gears and drive key. Make sure gears turn freely with the
key removed.
6. Make sure the gear coverplate O-ring is in place. Tighten the
coverplate to the pump housing.
Figure 19
Figure 21
10
EN
As with cleaning, push down on the poppet until the O-ring is
exposed.
Remove the O-ring with a small screwdriver or similar tool. Take
care not to damage the poppet or O-ring (see Figure 19).
From inside the housing, push the poppet and spring upward and
pull through the top outlet port (see Figure 20).
Wipe the poppet and gear cavities with a clean cloth.
Inspect the O-ring and replace as necessary (see Figure 21).
Figure 20