Product Description
CONTACT KIT (100 AMP)
Frequently Asked Questions
Q: What is the 4907173 contact kit used for in electric lift trucks?
A: The 4907173 is a 100-amp contact kit for electric lift truck contactors. This kit replaces worn electrical contacts in motor control contactors, restoring reliable circuit switching in 36-volt and 48-volt electric pallet jacks and lift trucks from manufacturers including Crown, Toyota, Raymond, Yale, and Hyster.
Q: What does the 100-amp rating on the 4907173 contact kit mean?
A: The 100-amp rating indicates the maximum continuous electrical current these contacts can safely handle when switching motor circuits. This rating matches high-amperage lift motor applications in electric material-handling equipment. Using contacts rated below the circuit amperage can cause overheating and premature failure.
Q: Which electric lift truck models use the 4907173 contact kit?
A: The 4907173 100-amp contact kit fits multiple electric lift truck and pallet jack models with compatible 36-volt or 48-volt contactor assemblies. Verify your equipment make, model, and contactor part number with OEM documentation to confirm this contact kit matches your equipment before ordering.
Q: What happens when contactor contacts wear out?
A: Worn contacts exhibit arcing, corrosion, and pitting, which reduces electrical conductivity and causes intermittent motor response, slow acceleration, or complete failure to engage. Replacing contacts with the 4907173 kit restores full electrical conductivity and reliable motor control without replacing the entire contactor assembly.
Q: How often should electric lift truck contactor contacts be replaced?
A: Contact replacement interval depends on switching cycles and operating conditions. High-use equipment may require contact kit replacement every 2 to 4 years; light-duty equipment may go longer. Replace contacts immediately if you notice hesitation, lag, or intermittent motor response during lift truck operation.
Q: Are there cross-reference part numbers for the 4907173 contact kit?
A: The 4907173 is the standard part number for this 100-amp contact kit. Cross-reference and equivalent part numbers vary by OEM and contactor model. Verify compatibility with your specific equipment contactor assembly before ordering.