During the use of a QY25 truck crane, there was a phenomenon that the main hoisting mechanism had audible noise and was unable to lift (6-times wire rope hoisted at 16t). (1) There is a noise in the lifting mechanism. According to the observation and analysis of the failure may be in the balance valve, the valve imported from Italy, its remote control interface is equipped with one-way damping combination valve (damping by thread adjustment), the principle is to open slowly (delay 2s), fast return, so that The balance valve plays a more safe role in the lifting mechanism. The fault may be due to long-term use, the maintenance of the hydraulic system is not timely, the damping part has a little oil, so that the damping increases, leading to a longer opening delay (about 8s), resulting in incoordination of the balancing valve opening and lifting brake opening, The rattling sound of “when and when†was issued, and after the balance valve was removed for cleaning, assembly, and adjustment, the delay time reached the factory's requirements, and the malfunction disappeared. (2) Lifting powerlessness. The reasons are generally as follows: the hydraulic motor has a large amount of oil leakage, the volumetric efficiency is obviously reduced, and the lifting is weak; the control element overflow valve (pilot type) drains the oil, and the system pressure does not rise and the lifting is weak. Remove the motor drain port and observe the lifting mechanism to observe that the amount of oil drained is normal. After removing the lift relief valve (in-line type) of the upper valve group, check that an O-ring is slightly damaged, resulting in oil leakage. Pressure does not go up. After replacing the O-ring, adjust the pressure to the design value. Heavy lifting test, work returned to normal.
[Composition]
The main component of this
preparation is human immunoglobulin, which is prepared by cold ethanol
fractionation of human plasma from healthy donors. The manufacturing process
contains a step to remove anticomplementary activity and a dual viral
inactivation process. It contains a suitable amount of glucose or maltose as
stabilizer (see table below), but does not contain any antiseptic or
antibiotic. The distribution of IgG subclasses is close to the serum level of
normal subjects and maintains the bioactivity of Fc fragment of IgG.
[Indications]
1. Primary
agammaglobulinemia, such as X-linked hypogammaglobulinemia,
common variant immunodeficiency diseases, immunoglobulin G subclass deficiency,
etc.
2. Secondary
immunoglobulin deficiency diseases, such as severe infection, septicemia of
newborn, etc
Intravenous Injection Of Human Immunoglobulin Intravenous Injection Of Human Immunoglobulin,Intravenous Immunoglobulin,High-Quality Effective Intravenous Immunoglobulin,Human Immunoglobulin For Intravenous Injection Sichuan Yuanda Shuyang Pharmaceutical Co., Ltd. , https://www.syimmunoglobulin.com