23013323 for Renault Volvo 23013323 construction machinery parts

      Solenoid valve Daily Maintenance Guide When the solenoid valve is greasing, the pressure

problem is often ignored. During the operation of grease injection, the pressure of grease

injection changes regularly with peaks and valleys. The pressure is too low, the seal leakage or

failure pressure is too high, the grease injection port is blocked, the grease in the seal is hardened,

or the sealing ring is locked with the valve ball plate. Usually when the grease injection pressure is

too low, the injected grease flows into the bottom of the valve chamber, which generally occurs in

small gate valves. If the grease injection pressure is too high, check the grease injection nozzle and

replace it if the grease hole is blocked. The other side is lipid hardening, to use a cleaning solution,

repeatedly soften the failed sealing grease, and inject a new lubrication grease replacement. In

addition, the sealing model and sealing material, also affect the injection pressure, different sealing

forms have different injection pressure, in general, the hard seal injection pressure is higher than the

soft seal. When the valve grease is injected, the problem of the amount of grease is often ignored.

After the grease gun is refueled, the operator selects the valve and the grease injection connection

mode, and carries out the grease injection operation.