1. Daily maintenance

(1) Check whether the connected moving parts and fasteners are loose. Whether the connector is leaking.

(2) Before turning on the pump every shift, check whether the locking screw sleeve at the connection between the plunger and the slider is loose.

If it is loose, tighten it in time.

(3) Frequently use a wrench to check whether the locking block of the suction screw is loose and tighten it tightly. This inspection shall not be less than twice a week.

(4) Check whether the seals of each part are reliable, mainly the slider seal and the plunger seal.

(5) In order to ensure the normal use of the plunger, please pay attention to fill the oil in the tank in time to ensure that the velvet thread is intact (add N46 mechanical oil to the pool, and drip oil to the plunger through the velvet).

(6) Check the performance of the inlet and drain valves, usually observe the rhythm of the valve group movement and the beating of the pressure gauge. If abnormalities are found, deal with them in time (see section 6).

(7) When the ambient temperature of the pump is used, the liquid in the liquid chamber should be released after stopping the pump to prevent the freezer from freezing.

2. There are two ways to replace the seal ring
(Conditions allow, the second method is preferred)
(1) Remove the connection between the plunger and the slider, unscrew the plunger cavity plug of the pump head, release the compression force screw sleeve, the clutch on the tire, and let the slider pull the plunger out from the pump head Pull the plunger out. Remove the lock nut and compression screw sleeve, then remove the guide sleeve and plunger seal. When reassembling, pay attention to the three sealing rings should be replaced in groups, the position of the interface should be staggered 1200, and the sealing ring on the front surface of the high-pressure steel sleeve should be coated with clean grease.

Screw the compression screw sleeve onto several buckles, slowly load the plunger surface after refueling, and finally tighten the screw sleeve with a fork-shaped wrench to tighten the tension.

(2) Remove the pump head, remove the steel sleeve assembly, remove the plunger, nut, screw plug, plunger seal, etc. in order, and then reassemble according to the above method.

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