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AF044X-XX & AF046X-XX (en) Page 5 of 8
Install the (142) major valve plate, with identification
dimple facing outward, into the (144) valve housing cov-
ering the (143) D-valve.
Install the four (113) O-rings onto both (114 & 137) tubes.
Loosely install the (137) tube into the bore in the (122)
head plate.
Loosely install the (114) tube into the bore in the (101)
base assembly.
Install the (141) manifold gasket into the (140) mani-
fold and telescope onto both (114 & 137) tubes until
the (113) O-rings are seated. Fasten the (140) manifold
to the (144) valve block using four (138) socket head
screws. Tighten to torque specications.
Install the (155) muer/(201) muer assembly.
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26.
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30.
REASSEMBLY OF AIR MOTOR (CONT’D)
TYPE -0-
Divorced Base, Quick Coupled Rod
65023 BASE and
67489 PISTON ASSEMBLY
TYPE -1-
Divorced Base, Pin Coupled Rod
65020 BASE with 93958 INSERT and
67494 PISTON ASSEMBLY
TYPE -2-
Coupled Base, Pin Coupled Rod
65775 BASE and
67493 PISTON ASSEMBLY
TYPE -3-
Coupled Base, Male Threaded Rod
65775 BASE and
67490 PISTON ASSEMBLY
TYPE -4-
Coupled Base, Female Threaded Rod
90074 BASE and
67492 PISTON ASSEMBLY
TYPE -5-
Coupled High Pressure Base,
Female Threaded Rod
65020 BASE and
67491 PISTON ASSEMBLY
Air Motor Base and Rod Combination
0 – Divorced pump base with quick coupled rod connection
1 – Divorced pump base with pin coupled rod connection
2 – Coupled pump base with pin coupled rod connection
3 – Coupled pump base with male threaded rod connection
4 – Coupled pump base with female threaded rod connection
5 – Coupled high pressure pump base with female threaded rod connection
Figure 4
VARIETIES OF BASE (101) AND PISTON ROD END (115)
TROUBLE SHOOTING
Air leakage out of main exhaust.
Damaged (141) track gasket. Replace (141) track gasket.
Worn (116) piston seal. Replace (116) piston seal.
Continual air leakage out (149) pilot exhaust.
Worn (136) “U” cup. Damaged (148) track gasket. Replace
(136) “U” cup and (148) track gasket.
Air leakage out (149) pilot exhaust only during the down
stroke.
Worn (133) “U” cup. Rolled or damaged (128) “O” ring. Re-
place (133) “U” cup and (128) “O” ring.
Air leakage around (115) piston rod.
Worn or damaged (102) “O” ring or (152) “U” cup depend-
ing on motor model. Replace (102) “O” ring or (152) “U”
cup depending on motor model.