1. Use heavy-duty, adhesive-lined heat shrink tubing on all electrical connections. 2. Protect battery posts and termin with anti-corrosive protector spray. 3. Check ground power source. Always make sure ground leads directly to the negative battery post Grounding to the chassis or engine will lead to corrosion, poor contacts and faulty electrical operations. 4. Store electrical and air coils in stowage devices when not in use fo extended periods of time. 5. Rotate electrical assembly plugs. To safeguard against uneven wear, swap plug ends from tractor to trailer side every six months. 6. Do not pierce wire jacketing. This causes wicking, which creates a leak path for contaminants to seep in that rots the wire from the inside out.
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