説明
A pipelayer and an excavator sharing a pump number is not a listing error. Volvo builds the PL4611 on the EC460 platform, so the engine, the hydraulic drive train and the cooling package carry over almost unchanged. That is useful for a fleet with both machine types, and it is a reminder that the model badge is a weaker search key than the number cast on the part.
適合性と根拠
Volvo EC460B, EC460C and PL4611. Dealer parts data records the item as a gear pump in the fan drive position. Volvo’s own online catalogue does not return a citable page for 14537295, so the description is dealer-established rather than manufacturer-confirmed. No displacement, pressure or flow figure is published for it, and none is quoted here.
Diagnosis order before ordering a fan pump
- Clean the cores and re-measure coolant and hydraulic oil temperature at low and high idle under load.
- Confirm the fan accelerates when the controller asks for it. A fan held at part stroke is a control fault, not a pump fault.
- Measure outlet flow and pressure at working temperature. Gear pump wear shows as output that fades as the oil heats.
- Check the suction line, the strainer and the oil level. Starvation makes a healthy pump noisy and then dead.
- Inspect the fan motor case drain before closing the job, because a motor that shed material has already circulated it into the pump.
Procedures are in our 油圧ファンポンプ診断ガイド および ファンモーター診断ガイド.
取付け
Match shaft form, pilot, flange, port positions and rotation direction against the removed pump; gear pumps are direction-sensitive and a reversed unit starves itself from the first crank. Prime with clean oil, change the return filter element, keep the case drain unrestricted to tank, and target ISO 4406 18/16/13.
ご注文
Minimum order one piece. Three to six month warranty on new aftermarket units as stated on your proforma invoice; bench checked and photographed against your order before the wooden case closes, delivery 5 to 8 working days from payment subject to stock. The EC460 fan motor is 14533496; ；ラインナップは以下に属する Volvo hydraulic fan motor.
