PR 312679-000

Frequently Asked Questions

Q: What does the PR 312679-000 lift pump and motor assembly do?
A: The PR 312679-000 is a combined hydraulic pump and electric motor assembly that generates and delivers hydraulic pressure to raise and lower the mast on an electric lift truck. This assembly is critical for vertical load handling on walkie pallet trucks.

Q: Which pallet jack models use the PR 312679-000 pump and motor assembly?
A: The PR 312679-000 is designed for BT Prime Mover SMX 45 walkie pallet trucks. Confirm your equipment model and serial number match this specification before ordering, as pump displacement and motor voltage vary across different truck generations.

Q: Is the PR 312679-000 sold as a complete assembly or individual components?
A: The PR 312679-000 is a factory-sealed combined pump and motor assembly. Individual pump or motor components are not separated from this SKU. Order the complete assembly as a single unit replacement part.

Q: What common symptoms indicate the PR 312679-000 assembly may need replacement?
A: Watch for slow or jerky mast raise and lower cycles, loss of lifting height, unusual noise or vibration from the pump, leaking hydraulic fluid around pump seals, or complete loss of lift function. These symptoms suggest pump wear, motor bearing failure, or internal seal degradation.

Q: How does pump and motor assembly condition affect battery runtime?
A: A worn pump with increased internal friction demands higher current draw from the battery, reducing runtime per charge cycle. A degraded motor pulls more amps to overcome bearing drag or winding resistance. Replacing the PR 312679-000 with a factory assembly restores efficiency and extends work time between charges.