Repair
7-7
E 1999 Nordson Corporation
All rights reserved
104 330H
Issued 8/99
Manual 1-8
12. Grasp the air motor cylinder (20) and pull it away from the base (16).
The connecting rod (13) and piston assembly (11) may come out of
the base along with the air motor cylinder.
13. Unscrew one of the tie rods (26) from the base (16) to gain access to
the air motor gland (19).
14. Unscrew the air motor gland (19) from the base (16). Discard the air
motor gland.
15. Remove the square-cut O-ring (18) from the base (16).
16. Remove the piston/connecting rod assembly from the air motor
cylinder (20).
17. Place the piston/connecting rod assembly upside down in a vise with
the upper jam nut (10) between the vise jaws. Loosen the lower jam
nut (12) by turning it one or two turns counter-clockwise. The threads
are right-handed. To loosen the nut from the piston (11), it must be
screwed further down on the connecting rod (13), away from
the piston.
18. Place a wrench on the connecting rod (13) flats. Turn the connecting
rod counter-clockwise until it disengages from the upper jam nut (10)
and piston (11). Remove the piston (11). The lower jam nut (12) can
be unscrewed from the connecting rod (13). Remove the O-ring (17).
19. Remove the remaining assembly from the vise. Place one wrench on
the spool carrier (5) flats. Use another wrench to thread the special
nut (22) down the shank of the telescoping screw (21), away from the
spool carrier (5).
20. With a wrench on the flats of the spool carrier (5), use a screw driver
to remove the telescoping screw from the spool (5) carrier. Remove
the special nut (22), upper jam nut (10) and O-ring (9) from the
telescoping screw (21).
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