Navistar ProStar+, Руководство по эксплуатации и обслуживанию, Страница: 229 / 304

Maintenance Instructions
High Current Relay
CAUTION
To prevent property damage, when servicing
the isolation battery, be sure that all cables
are connected correctly to prevent damage
to the high current relay and other electrical
components.
1. High Current Relay
2. Battery Box (Back)
The main vehicle’s battery box is equipped with a high current
relay to isolate one battery during the auto start / stop crank
operation and to stabilize power to electrical system controllers.
Electrical Charging and Starting System Test
At every Preventive Maintenance (PM), fully charge the
batteries using an automatic float charger.
Then, have a
qualified technician perform an electrical system test using an
International
® Electronic System Tester (Midtronics in TELLECT
EXP HD Expandable Electrical Diagnostics Platform available
through your local International dealer) to catch electrical system
problems before they cause further damage to the batteries and
prevent a stranded vehicle. The test will check for alternator
amperage output, starter current draw, and battery amperage
capacity. This type of testing will detect weaknesses that may
not yet be apparent during normal daily operations.
Terminal Inspection-Cleaning-Corrosion Protection
Periodically inspect electrical connectors on the engine, battery,
and frame for corrosion and tightness. Inspect exposed cables
for fraying or signs of abrasion.
Exposed terminals, such
as cranking motor, alternator, and feed-through studs should
be cleaned and recoated with a dielectric grease, such as
Fleetrite
® 472141–C1 or equivalent paste or spray protectant.
The inspection / cleaning / corrosion protection should include
feed-through connections, power and ground cable connections
for batteries, engines, and the starter stud.
Connectors that are more subject to corrosion may be
disassembled and sprayed internally with a light coating of
dielectric grease. Use grease sparingly, as too much grease will
not allow air to escape from the connection and this compressed
air will push out the seals in the electrical connectors.
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