Product Description
CONTACT, KIT
Frequently Asked Questions
Q: What is the TO 00591-39845-81 contact kit?
A: The TO 00591-39845-81 is an OEM Toyota contact kit assembly for electric lift truck electrical contactors and relay systems. It contains replacement contact elements designed to restore electrical switching performance and ensure reliable power delivery to lift, tilt, and propulsion circuits.
Q: Which Toyota lift truck models are compatible with the TO 00591-39845-81?
A: The TO 00591-39845-81 is an OEM Toyota part for electric lift trucks. Fitment depends on the specific contactor model, voltage rating, and electrical circuit configuration. Confirm compatibility with your equipment model and serial number by consulting your documentation or contacting our parts team before ordering.
Q: What material composition does the TO 00591-39845-81 have?
A: The TO 00591-39845-81 contact kit features metal alloy contacts mounted on a backing plate engineered for high-current switching applications. The alloy composition provides excellent conductivity, resistance to electrical arc erosion, and durability across typical lift truck operating voltages and load currents.
Q: What are the failure symptoms of worn TO 00591-39845-81 contacts?
A: Failed or worn contacts cause intermittent motor response, sluggish acceleration, reduced motor speed, repetitive clicking sounds from the contactor, or complete loss of power to the motor circuit. Visible contact pitting, discoloration, or build-up of arc residue indicates the contact kit requires replacement.
Q: How long does the TO 00591-39845-81 contact kit last in service?
A: Under normal intermittent lift truck duty cycles, contact kits typically operate for 500,000 to 1,000,000 electrical cycles before replacement becomes necessary. Actual lifespan depends on circuit current, switching frequency, and operating voltage. Regular contactor inspection helps identify worn contacts early and prevents motor circuit damage.
Q: Are cross-reference or superseding part numbers available for TO 00591-39845-81?
A: The TO 00591-39845-81 is a Toyota OEM contact kit. No superseding or cross-reference part numbers are documented. For equivalent contacts or compatibility with other contactor types, provide your equipment model and contactor specifications to our parts team.