长期停放时的维护保养
长期停车应定期启动泵，进行短时间运转。
如果长期不工作时，必须进行泵的油封。
拆卸泵后，将所有零件在煤油中清洗干净。
检查零件，消除缺陷和锈迹，调换不适用的零件。
泵除涂漆表面外，将所有的零件用防锈油油封，然后装配泵。
油封时也可将所有仪表的附件拆下，泵内油放尽，然后注满防锈油，用塞或盖板封住各连接孔。
定期(不超过六个月)检查油封情况，必要时应重新油封，油封有效期从工厂发货日起为六个月。
启油封
凡油封过的零件必须用纯净煤油或汽油清洗去油封。
凡油封时用防锈油注满泵，则启动油封时只须将防锈油放尽。
HSA螺杆泵型号：(R代表螺杆右旋，L代表螺杆左旋)下面为右旋螺杆泵型号：
HSA螺杆泵型号五：
HSA20R38R4PY HSAF20R38R4PY HSAD20R38R4PY HSAFK20R38R4PY HSAS20R38R4PY
HSA20R46R4PY HSAF20R46R4PY HSAD20R46R4PY HSAFK20R46R4PY HSAS20R46R4PY
HSA40R38R4PY HSAF40R38R4PY HSAR40R38R4PY HSAFK40R38R4PY HSAS40R38R4PY
HSA40R46R4PY HSAF40R46R4PY HSAR40R46R4PY HSAFK40R46R4PY HSAS40R46R4PY
HSA80R36R4PY HSAF80R36R4PY HSAD80R36R4PY HSAFK80R36R4PY HSAS80R36R4PY
HSA80R46R4PY HSAF80R46R4PY HSAD80R46R4PY HSAFK80R46R4PY HSAS80R46R4PY
HSA120R42R4PY HSAF120R42R4PY HSAD120R42R4PY HSAFK120R42R4PY HSAS120R42R4PY
HSA120R46R4PY HSAF120R46R4PY HSAD120R46R4PY HSAFK120R46R4PY HSAS120R46R4PY
HSA210R36R4PY HSAF210R36R4PY HSAD210R36R4PY HSAFK210R36R4PY HSAS210R36R4PY
HSA210R40R4PY HSAF210R40R4PY HSAD210R40R4PY HSAFK210R40R4PY HSAS210R40R4PY
HSA210R46R4PY HSAF210R46R4PY HSAD210R46R4PY HSAFK210R46R4PY HSAS210R46R4PY
HSA280R43R4PY HSAF280R43R4PY HSAD280R43R4PY HSAFK280R43R4PY HSAS280R43R4PY
HSA280R46R4PY HSAF280R46R4PY HSAD280R46R4PY HSAFK280R46R4PY HSAS280R46R4PY
HSA440R36R4PY HSAF440R36R4PY HSAR440R36R4PY HSAFK440R36R4PY HSAS440R36R4PY
HSA440R40R4PY HSAF440R40R4PY HSAR440R40R4PY HSAFK440R40R4PY HSAS440R40R4PY
HSA440R46R4PY HSAF440R46R4PY HSAR440R46R4PY HSAFK440R46R4PY HSAS440R46R4PY
HSA660R40R4PY HSAF660R40R4PY HSAD660R40R4PY HSAFK660R40R4PY HSAS660R40R4PY
HSA660R44R4PY HSAF660R44R4PY HSAD660R44R4PY HSAFK660R44R4PY HSAS660R44R4PY