2010-02-08
The flow rate of the excavator walking motor can reflect its performance. The following isHitachi excavatorFor example, the testing steps are as follows:
(1) Purpose
Measure the flow rate of the walking motor to determine its performance
(2) Conditions
Hydraulic oil temperature; 45～55°C
Engine speed; High speed idling
(3) Prepare
1) Place a stopper under the left and right sprocket teeth
2) CloseengineAnd discharge pressure from the hydraulic circuit
3) Connect the hose to the drain port of the walking motor and put the discharged oil into a container
(4) Measurement; When locked during walking, the temperature ranges from 45 to 55 ℃ (113 to 131 ° F)
1) Start the engine and release pressure when the travel control lever is at full stroke
2) Measure the flow rate within 30 seconds
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