Filter
Top Products
Repair
312375J 11
19. Pull seal (18) and seat (20) out the top of the intake
housing (22). If seat is difficult to remove, turn hous-
ing upside down and drive seat out using a hammer
and brass rod.
20. Examine mating surfaces of seat (20) and intake
valve body (32) for damage.
21. To access throat packings and glands, use an
adjustable wrench to remove the throat cartridge
(3).
22. Remove cartridge o-ring (4). Then remove throat
packings (P) from throat cartridge (3). Some models
include a fluid outlet nipple (43) and o-ring (44). Do
not remove these parts from housing unless they
need replacement.
23. Place flats of displacement rod (1) in a vise.
Unscrew piston (23) from displacement rod; priming
piston rod (24) will come with it. Slide piston guide
(28) and seat (30) off piston (23).
24. Inspect outer surfaces of displacement rod (1) and
priming piston rod (24) for wear, scoring or other
damage by holding them up to light at an angle or
running a finger over the surface.
25. It is not necessary to remove priming piston rod (24)
from piston (23) unless your inspection reveals scor-
ing, wear, or other damage to either part. To disas-
semble, place piston flats in a vise and unscrew the
rod.
26. Place piston seat (30) and guide (28) in vise. Slide a
brass rod through openings in piston guide and
unscrew it from seat. Remove piston seal (31) and
guide bearing (29).
F
IG. 13
F
IG. 14
ti10566a
18
20
22
ti11118a
P
3
4
2
P
1
(MaxLife)
(Severe Duty)
FIG. 15
Guide bearing (29) is press-fit into the piston guide
(28), and may require cutting to ease removal.
F
IG. 16:
ti10569a
24
23
1
28
30
28
30
ti10570a
29