Mô tả
The EC950E is a 90 tonne class machine with a Volvo D16 engine rated at 450 kW in Volvo CE’s published specification. That is a great deal of heat to reject through a cooling pack that works in a quarry or a overburden face, and it puts the fan drive at the centre of machine availability rather than at the edge of it.
适用性与依据
Volvo EC950E excavator. Volvo’s own parts catalogue does not return a citable page for 14673696, so the item name is trade-established rather than manufacturer-confirmed, and the machine list is drawn from dealer parts data rather than a Volvo document. What we can state is the grouping: dealers place 14673696 in the same fan motor family as 14641300 and 14674307, which is consistent with a shared mounting and hub arrangement across the E-series large machines. Confirm against your own plate.
Why the large-machine fan drive is a different problem
On a 90 tonne excavator the cooling circuit runs near its limit as standard, so there is little margin when one component fades. Three effects compound:
- A fan motor losing volumetric efficiency reduces airflow before the operator sees a temperature alarm, because the system compensates by running the fan harder.
- That compensation raises hydraulic oil temperature, which thins the oil, which increases internal leakage in the motor, which further reduces airflow. It is a self-reinforcing loop, and it is why these machines often get a second fan component replaced within a season.
- The debris from a worn motor goes into a circuit that also feeds the main pumps, so contamination control is not optional at the repair.
Test in order: clean the cores, measure fan speed against demand, measure flow at the motor ports, then check case drain volume. Our 风扇马达诊断指南 covers the procedure and the check valve article covers the case where the oil still runs hot after the fan parts are new.
安装
Match shaft spline, flange, port positions and drain arrangement against the removed motor. Flush the circuit and change the return filter element. Prime the casing with clean oil before cranking. Keep the case drain unrestricted to tank and target ISO 4406 18/16/13 or better. Prove full fan speed and reverse function under load, then record coolant and hydraulic oil temperature as the new baseline.
订购
Send the number cast on your motor and the machine serial prefix. 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 EC700 unit is 14531612; ；该系列归属于 沃尔沃液压风扇马达.
