Base on the main problem of vacuum ejector waste system, this paper set out overhaul flow chart and raise check and overhaul method.
根据污物收集系统的常见故障，列出了检修流程图，提出了检查方法和检修要点。
2
A set of method and formula for the computation of calendar first D check, calendar time since overhaul and total calendar life is presented by using tests data.