HP Triplex Ceramic Plunger Pump LP400 User Manual
Page 10
10
9) Remove seal case (37) from
seal sleeve (35).
10) Check plunger surface (25
and 29B) for wear and pit-
ting. If none is found, pro-
ceed to step twelve.
11) If plunger (29B) is worn, re-
move tension screw (29C)
with a 17mm wrench. Clean
tension screw with wire
brush to remove any old
locktite. Discard copper gas-
ket (29D) and replace with
new. Clean the front surface
of plunger/ crosshead as-
sembly (25). Install new
plunger (29B) onto plunger/
crosshead assembly. Put
some locktite on both sur-
faces of copper gasket and
tension screw threads. Se-
cure plunger in place with
tension screw and gasket
and tighten to 33 ft.-lbs.
REPAIR INSTRUCTION - LP350, LP400, LP450
12) Remove v-sleeves (40) and support ring (41) for seal case (37)
and replace with new elastomers. Lubricate parts before
reinstalling into seal sleeve. Replace seal sleeve/seal case
assembly (35/37) into the valve casing (43).
35
39
40 (2)
41
42 38 38A
37
38
(LP400 only)
13) Place entire manifold assem-
bly sleeve assembly over the
studs (49) and push firmly
until seated against the crank-
case (1).
14) Replace nuts and washers
(49A, B) and tighten to 59 ft.-lbs.
in the pattern as shown to the
right.
6
4
2
7
8
1
3
5