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.
Repair
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).
18
20
22
ti10566a
FIG. 13
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
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4
1
2
ti11118a
FIG. 14
24
3023
28
1
ti10569a
FIG. 15
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).
Guide bearing (29) is 
(28), and may require cutting to ease removal.
29
28
30
ti10570a
FIG. 16:
312375J | 11 |
