Figure 3-2 Electrical Bond Preparation - Nut Plate; Figure 3-3 Electrical Bond Preparation - Bolt/Nut Joint; Figure 3-4 Electrical Bond Preparation - Terminal Lug; Aluminum Surface Preparation - Garmin GTX 335 w GPS Installation Guidance

LOCK WASHER
FLAT WASHER
LOCK WASHER
FLAT WASHER
FLAT WASHER
LOCK NUT

Figure 3-3 Electrical Bond Preparation - Bolt/Nut Joint

LOCK WASHER
FLAT WASHER
FLAT WASHER

Figure 3-4 Electrical Bond Preparation - Terminal Lug

3.15.1 Aluminum Surface Preparation

This general procedure is recommended to prepare an aluminum surface for correct electrical bonding.
1. Clean grounding location with solvent.
2. Remove non-conductive films or coatings from the grounding location.
3. Apply a chemical conversion coat such as Alodine 1200 to the bare metal.
4. When the chemical conversion coat is dry, clean the area.
5. Install bonding equipment at grounding location.
6. After the bond is complete, if any films or coatings were removed from the surface, reapply a film
or coating to the surrounding area.
Refer to SAE ARP1870 Sections 5.1 and 5.5 for a more detailed procedure.
190-00734-17
Rev. 1

Figure 3-2 Electrical Bond Preparation - Nut Plate

E-BOND PREP
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E-BOND PREP
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E-BOND PREP
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GTX 335 w/GPS Installation Guidance
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