CHAPTER 1
4 Case IH 3230/3240/3320/3330/3340 & 4420/4430/4440, Model Year 2010 & Newer ISO AutoBoom® Installation Manual
Routing should not allow harnesses to:
• Hang below the unit
• Have the potential to become damaged due to exposure to the exterior environment. (i.e. tree limbs, debris,
attachments)
• Be placed in areas of or in contact with machine components which develop temperatures higher than the
temperature rating of harness components
• Wiring should be protected or shielded if it needs to route near hot temperatures beyond harness component
specifications
Harnessing should not have sharp bends
Allow sufficient clearance from machine component operational zones such as:
• Drive shafts, universal joints and hitches (i.e. 3-point hitch)
• Pulleys, gears, sprockets
• Deflection and backlash of belts and chains
• Adjustment zones of adjustable brackets
• Changes of position in steering and suspension systems
• Moving linkages, cylinders, articulation joints, attachments
• Ground engaging components
For harness sections that move during machine operation:
• Allow sufficient length for free movement without interference to prevent: pulling, pinching, catching or
rubbing, especially in articulation and pivot points
• Clamp harnesses securely to force controlled movement to occur in the desired harness section
• Avoid sharp twisting or flexing of harnesses in short distances
• Connectors and splices should not be located in harness sections that move
Protect harnesses from:
• Foreign objects such as rocks that may fall or be thrown by the unit
• Buildup of dirt, mud, snow, ice, submersion in water and oil
• Tree limbs, brush and debris
• Damage where service personnel or operators might step or use as a grab bar
• Damage when passing through metal structures
IMPORTANT:
• Avoid directly spraying electrical components and connections with high pressure water.
High pressure water sprays can penetrate seals and cause electrical components to corrode
or otherwise become damaged. When performing maintenance:
• Inspect all electrical components and connections for damage or corrosion. Repair or replace
components, connections, or cable as necessary.
• Ensure connections are clean, dry, and not damaged. Repair or replace components,
connections, or cable as necessary.
• Clean components or connections using low pressure water, pressurized air, or an aerosol
electrical component cleaning agent.
• Remove visible surface water from components, connections, or seals using pressurized air or
an aerosol electrical component cleaning agent. allow components to dry completely before
reconnecting cables.
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