Duff-Norton TracMaster 6415 Series Podręcznik - Strona 8
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If switches (16), insulation (19) or limit switch bracket
(21) do not have to be replaced, proceed to Step 16.
14. Remove screws (20) and bracket (21) from cover (9).
15. Remove screws (15), switches (16) and insulation
(19) from bracket (21).
16. Press clevis end bushing (6) out of cover (9). If
bushing (6) is not damaged it should not be removed.
17. Remove bearing (28), bushing (34) and flange
bearing (25) from cover (9).
Bushing (34) and flange bearing (25) should not be
removed unless they are damaged. Bearing (28) may
stay on pinion (29) and can be removed in Step 18.
18. Remove thrust washer (31) from intermediate pinion
shaft (32). Bearing (28) from pinion (29), thrust
washers (35) and thrust bearing (36) from spacer nut
(37) may have been removed in Step 10.
19. Remove spring (61) from end of screw (62).
20. Remove intermediate cluster gear (33), intermediate
pinion shaft (32) and thrust washer (31).
21. Remove socket head cap screws (45), lock washers
(46)
22. Disassemble outer tube (55) and slip off over
translating tube and clevis (66).
23. Remove air vent (58), wiper scraper (60) and guide
bushing (59) from outer tube (55).
If wiper scraper or guide bushing are not damaged they
should not be removed.
24. Remove set screw (68) from spacer nut (37) and
disassemble spacer nut (37) from screw (62) by
clamping screw (62) between soft jawed vise.
Care must be taken not to damage bearing journal
of spacer nut (37).
25. Remove output gear (39), key (40), thrust washers
(35), thrust bearing (36), and gear spacer (43).
26. Remove screw (62), translating tube and clevis (66)
and nut assembly (64).
27. Remove washer (44) from screw (62).
28. Thread screw (62) into the translating tube until the
screw bottoms out and cannot rotate farther, or until
the screw thread becomes disengaged from the
NOTE
NOTE
NOTE
WARNING
lifting nut thread (64).
29. Drive the four pins (65) just far enough into the
lifting nut (64) to clear the translating tube wall; then
remove the translating tube from the nut.
30. Remove the lifting screw (62) from the lifting nut (64)
31. Remove the four pins (65) by pressing each one the
rest of the way through the lifting nut wall.
32. Remove the stop pin (63) from the lifting screw (62) if
necessary.
33. Removing the brake. (Required only if drift is
excessive. If brake removal is not necessary,
proceed to Step 34).
a. Push on the pinion coupling (48) until it slips
back enough to make the spring (49) tang
accessible.
b. Remove the spring (49) by grabbing the tang
with pliers and twisting out. (Spring must now be
replaced and can no longer be used.)
c. Remove retaining ring (48) from input pinion (29)
and remove coupling (47). Input pinion (29) and
bearing (30) now can be removed from housing (42).
d. The brake inset (51) has straight knurls on its O.D.
which prevent it from rotating. Therefore, the insert
can only be removed by pulling straight out.
e. One method of removing the insert (51) is to use
a blind hole bearing puller. This tool expands into
the internal spring cavity and pulls against the lip
of the insert (51).
34. If coupling (47) on motor (53) shaft must be replaced,
remove retaining ring (48) from motor (53) shaft and
remove coupling (47).
DISASSEMBLY IS COMPLETE.
4-5. Assembly
Assemble the 6415 Series DC actuator as follows while
referring to Figure 5-1. Read instructions thoroughly
before assembling.
Be sure all components are clean and dry before
assembling.
1. Install V-Ring Seal (5) on motor (53) shaft. (Cup end
of seal should be against motor end bell. Care must
be taken not to collapse V-ring.) Assemble coupling
(47) on motor shaft, then install retaining ring (48) on
motor shaft.
2. Press bearing (30) on input pinion (29) (press load
should be applied to inner race of bearing to avoid
8
NOTE