408-2292-3 Datasheet, PDF (5/6 Pages) TE Connectivity Ltd – Terminal Crimping Dies

408-2292-3
4. MAINTENANCE AND INSPECTION PROCEDURES
TE Connectivity recommends that a maintenance and
inspection program be performed periodically to
ensure dependable and uniform terminations. Inspect
dies at least once a month. Frequency of inspection
may be adjusted to suit your requirements through
experience. Frequency of inspection is dependent
upon:
• Care, amount of use, and handling of the dies
• Skill level of the operator
• Presence of abnormal amounts of dust and dirt
• Type and size of products being crimped
• Your own established standards
All dies are thoroughly inspected prior to shipment.
Because of the possibility of damage during shipment,
new dies should be inspected in accordance with
instructions in Section 4 when the dies are received in
your plant.
4.1. Cleaning
CAUTION
! Do NOT allow deposits of dirt, grease, and foreign
matter to accumulate in the die closure surfaces. These
deposits may cause excessive wear in the die closure
surfaces, thereby affecting the quality of the crimp. Wipe
dies frequently with a clean, dry cloth.
4.2. Visual Inspection
Visually inspect die closure surfaces for broken, pitted,
or chipped areas. Although dies may gage within
permissible limits, worn or damaged die closure
surfaces are objectionable and can affect crimp
quality. Examples of possible damage to die closure
surfaces are shown in Figure 6.
Chipped
Pitted
Broken
Figure 6
4.3. Die Closure Inspection
Every die set is inspected for proper die closure before
shipment. However, inspection of die closure for
excessive wear is required periodically.
Suggested Plug Gage Design
Die Closure
Configuration ^{GO Dim.}
“B”
NO-GO Dim.
“B”
“A” Dim.
50.8 [2.00] Min. Typ
DIE
SET
DIE CLOSURE
DIM “A”†
NO.
GO NO-GO
GAGE MEMBER‡
DIM “B”
GO
NO-GO
68200-1
7.544
[.2970]
7.798
[.3070]
7.544-7.551
[.2970-.2973]
7.795-7.798
[.3069-.3070]
68201-1
8.534
[.3360]
8.738
[.3440]
8.534-8.542
[.3360-.3363]
8.730-8.738
[.3437-.3440]
68203-1
11.506
[.4530]
11.760
[.4630]
11.506-11.514
[.4530-.4533]
11.758-11.760
[.4629-.4630]
68204-1
13.564
[.5340]
13.818
[.5440]
13.564-13.571
[.5340-.5343]
13.815-13.818
[.5439-.5440]
68332-1
15.037
[.5920]
15.291
[.6020]
15.037-15.044
[.5920-5923]
15.288-15.291
[.6019-.6020]
68206-1
16.612
[.6540]
16.866
[.6640]
16.612-16.619
[.6540-.6543]
16.863-16.866
[.6639-.6640]
46757-3
17.856
[.7030]
18.059
[.7110]
17.856-17.864
[.7030-.7033]
18.052-18.059
[.7107-.7110]
46758-2 19.406 19.660 19.406-19.413 19.657-19.660
46758-3 [.7640] [.7740] [.7640-.7643] [.7739-.7740]
†Die closure dimensions apply when dies are positioned at “gage dimension” indicated in
Figure 8, Detail A. ‡Material - Tool Steel.
Figure 7
Die closure inspection is accomplished using
GO/NO-GO plug gages. TE neither manufactures nor
sells plug gages. A suggested plug gage design and
the GO/NO-GO dimensions for plug gage members
are given in Figure 7. The following procedure is
recommended for inspection the die closure.
1. Clean oil and dirt from the die closure surfaces,
and plug gage members.
2. Assemble and adjust the dies to meet the “gage
dimension” indicated in Figure 8, Detail A.
3. With the dies positioned at “gage dimension”,
inspect the die closure using the proper plug gage.
Hold the gage in alignment with the die closure and
carefully insert, without forcing, the GO member.
See Figure 8. GO member must pass completely
through the die closure as shown in Figure 8,
Detail B.
4. Try to insert the NO-GO member. NO-GO
member may enter partially, but must not pass
completely through the die closure. See Figure 8,
Detail B.
Rev B
5 of 6