Applicable Tools Types:

Towing pump, on-board pump, pump associate open hydraulic system

Mistake Sensation:

1. The main cyndrical tube does not transform direction throughout the work;

2. The primary cyndrical tube of the concrete pump installation has no activity, and the S valve is touched usually;

3. The engine high speed state directs the side of the cyndrical tube moves slowly, the opposite steps slightly faster, however still less than the normal speed, the concrete pump devices electromagnetic change shutoff core, the phenomenon has not altered. When the main cylinder relocations, the pumping pressure is almost zero, the round valve is not near to subdue the pressure, the pumping pressure has to do with 18 MPa, the pressure of the round valve can reach 31MPa, the pressure surge speed is reasonably slow.

4. Often times after the pump cylinder concrete pump devices piston to the end of the pressure, how to relocate or push and the cylinder does not change, press the pump stop button to slow down to a specific speed to quit stress.

Systems Analysis:

The main oil pump provides pressure oil for the pumping system. The stress oil travels through the primary hydraulic valve to the pumping cylinder, and the position of the main hydraulic valve figures out the action order of the pumping cyndrical tube. The major hydraulic valve is controlled by the mix of the small hydraulic shutoff and the concrete pump fittings electromagnetic reversing valve, and the pressure oil 2 originates from the dispersed pressure oil. The pressure oil of the primary hydraulic moving valve originates from the dispersed signal oil, and the adjustment of the electromagnetic turning around shutoff of the concrete pump fittings is managed by the electromagnet.

Debugging:

Before fixing the issue of non-change, concentrate on the problem of slow-moving rate for 2 factors:

1. The result flow of the primary pump is insufficient, so check whether the control oil circuit is normal. After inspecting that the control stress is flexible and the stress array is normal, the running rate of the oil cyndrical tube adjustments as necessary when the control stress is changed, to make sure that the fault of the oil pump and the control stress can be basically gotten rid of.

2. The 2nd system is inner leakage diversion. If the concrete pump fittings insertion valve is stuck or not acting usually, the oil circuit causes oil discharge, however inspect that the insertion shutoff is not irregular, and the throttle plug is not blocked.