Dawson EMV-220 METRIC, Инструкция оператора/Перечень запасных частей

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sure output of the excavator is too low the EMV will not run at all. This
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before oil can pass to the drive motor.
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the clamp close line and monitoring the pressure at which the valve
opens. Ensure this is set to 165 bar.
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using new seals.
7.2.4 Motor failure or gearbox problem. Try connecting the two main oil
supply lines directly to the hydraulic motor ports and running the unit
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now out of the circuit.
7.2.5 If the unit does not vibrate either the motor has become damaged or
there is a fault with the gearbox. Check the oil level in the gearbox
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shaft seal – in this case the unit usually runs very slowly unless metal
fragments have become entrapped in the transmission system as a
result.
7.2.6 Remove the motor from the gearbox and test.
7.2.7 As a last resort take the saddle assembly off the EMV and remove
the gearbox lid for an internal inspection. The gears, shafts and
bearings should rotate freely. Caution - pay attention to trapping body
parts in the mechanism during inspection!
7.2.8 Consult the manufacturer from section 7.2.5 onwards.
7.3.1 Check that the base machine hydraulic output complies with the
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supplier/manufacturer what system pressure is available on the bucket
ram circuit at 90 l/min.
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reaching the drive motor.
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setting is too close to the operating pressure the EMV will speed up then
slow down, speed up then slow down etc.
7.3.4 Check the gearbox oil level. If it is much higher than the sight glass the
motor shaft seal has probably blown – see section 7.4.
7.2
EMV CLAMP CLOSES
BUT THE UNIT WILL NOT
VIBRATE
7.3
UNIT WILL NOT RUN AT
THE CORRECT SPEED
- “JUMPS AROUND” OR
SPEED FLUCTUATES