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312375J 9
7. Hold flats of the priming piston rod (24) with an
adjustable wrench, and use a second wrench to
unscrew priming piston seat (27) from rod. Slide
priming piston (26) off rod. Inspect surfaces of guide
(25) and piston (26) for scoring, wear, or other dam-
age.
8. Use an adjustable wrench on hex of intake cylinder
(22) to unscrew it from intake valve housing (19).
9. Use an adjustable wrench to unscrew intake valve
housing (19) from cylinder (17) and outlet housing
(2). Pull intake valve housing off cylinder. Intake
check valve assembly (R) should slide down priming
piston rod (24) as you remove housing; if it does not
slide easily, firmly tap on top of housing (19) with a
rubber mallet to loosen.
10. Use a 400 mm adjustable wrench on flats of dis-
placement pump cylinder (17) and unscrew cylinder
from outlet housing (2). Remove o-rings (18).
Inspect inside surface of cylinder for wear, scoring
or other damage by holding it up to light at an angle
or running a finger over the surface.
The guide (25) is applicable only to 100cc and
500cc displacement pumps.
F
IG. 6
Steps 8-13 apply to 60cc, 100cc, 200cc, and
250cc displacement pumps only.
F
IG. 7
ti10563a
24
25
26
27
ti10562a
19
22
F
IG. 8
F
IG. 9
17
24
19
R
r_000000_312375_1
ti10565a
ti10601a
18
2
17