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408-4087

2 of 5

Rev C

Figure 2

4.2. Periodic Inspection

Hand tool should be immersed (handles partially 
closed) in a reliable commercial degreasing 
compound which does not attack paint or plastic 
material, to remove accumulated dirt, grease, and 
foreign matter. The tool should be re-lubricated after 
cleaning. The tool may then be wiped clean with a 
soft, lint-free cloth. Do NOT use hard or abrasive 
objects that could damage the tool. Ensure that the 
tool conforms to the information in Figure 6. 

A. Lubrication

Lubricate all pins, pivot points, and bearing surfaces 
with SAE

† 

20 motor oil as follows:

Tools used in daily production - lubricate daily

Tools used daily (occasionally) - lubricate weekly

Tools used weekly - lubricate monthly

Wipe excess oil from tool, particularly from crimping 
area. Oil transferred from the crimping area onto 
certain terminations may affect the electrical 
characteristics of an application.

B. Visual Inspection

1. Close tool handles until ratchet releases and then 
allow them to open freely. If they do not open 
quickly and fully, the tool is defective and must be 
replaced. See Section 6, REPLACEMENT.

2. Inspect jaws for worn, cracked, or broken areas. 
If damage is evident, the tool must be replaced. See 
Section 6, REPLACEMENT.

C. Gaging the Crimping Chamber

This inspection requires the use of plug gages 
conforming to the dimensions in Figure 3. 

TE Connectivity does not manufacture or market these 
gages. To gage the crimping chamber, proceed as 
follows:

1. Remove traces of oil or dirt from crimping 
chamber and plug gages.

2. Close the tool handles until it is evident that the 
jaws have bottomed, then HOLD in this position. Do 
NOT force the jaws beyond initial contact.

3. Align the GO element with the crimping chamber. 
Push element straight into the crimping chamber 
without using force. The GO element must pass 
completely through. Refer to Figure 3.

4. Now align the NO-GO element and try to insert it 
straight into the same crimping chamber. The NO-
GO element may start entry but must not pass 
completely through as shown in Figure 3.

If the crimping chamber conforms to the gage 
inspection, it is considered dimensionally correct and 
should be lubricated with a THIN coat of any good 
SAE 20 motor oil. If not, the tool must be replaced. 
See Section 6, REPLACEMENT.

D. Ratchet Inspection

Obtain a .025 mm [.001 in.] shim that is suitable for 
checking the clearance between the bottoming 
surfaces of the crimping jaws. (See Figure 3).

Proceed as follows:

1. Select a contact and wire (maximum size) for the 
tool (see Figure 3).

Conductor

Crimp

Area

Stripped Wire

Crimping

Jaws

L = 7.14 [.281] 22-16-14 AWG

L= 9.53 [.375] 12-10 AWG

Splice

L

† 

SAE is a trademark.

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