Repair
3A4347D
11
a.
Drop the ball into the piston.
b.
Insert O-ring into piston body.
c.
Insert seat into piston. Make certain
seat chamfer faces ball and o-ring.
d.
Apply Blue Locktite® 242 to threads
of seat retainer and install in piston.
When thread sealant is applied to
piston valve threads, ensure that
none gets on the ball.
e.
Torque to 175 ± 15 in.-lb (20 ± 2
N•m).
3.
Assemble upper-throat packing stack.
Use leather throat packings soaked
earlier alternating with white V-pack-
ings. Install from the top of the cylinder
(lips face in).
4.
Using a hammer with a socket or round
bar stock to tap upper throat packing
into pump cylinder.
