2. Assembly and Disassembly
Ensure no parts are missing or defective before assembly, wipe every part clean then start.
1). Tighten the bolts, screws and other fasteners to each relevant assembly parts.
2) .Lay O rings, gaskets, felted wool or other sub-seals in each relevant assembly parts.
3) .Place wearing ring and gaskets into casing cover.
4) .Mount ball bearings to shaft, and joint shaft and bearing housing together, close bearing cover
with bolts then put slinger onto shaft.
5). Depress stationary seal ring into mechanical seal cover, put seal cover、mechanical seal、shaft
sleeve one by one onto shaft.
6). Fasten casing cover onto bearing housing by fastening bolts, place key into shaft, set impeller on
key, put lock washer and impeller nut onto shaft against impeller and tighten them.
7). Fix all the assembly parts where mentioned above into volute casing, tighten all the bolts and
screws for volute casing, casing cover and mechanical seal.
3. Installation
Correct way of pump installation makes great sense of stable performance and long service life. All
the procedure of mounting and adjusting should be carried out carefully. For outline and dimension,
see the outline picture and dimension table.
Mounting and adjusting
1). Remove all the dust and dirt on base plate then place it onto ground foundation.
2). Check foundation level by level meter, iron wedge or steel shims can be used for adjustment.
3). Pour concrete into baseplate and foundation bolts holes.
4). Check foundation bolts to see if it is loose or not after concretion, and then tighten the bolts,
check level again.
5). Clean the mounting surfaces of baseplate、pump foot and motor foot, and fix pump and motor
onto baseplate.
6). Make sure the clearance between couplings is left from 2-4mm. The centerline of pump should
be in alignment with that of motor, axial and radial tolerance is 0.2mm. Shims are available for
alignment.
4. Starting, Checking, Stopping, Running and Maintenance
4.1. Starting
1).Check that the direction of the motor rotation corresponds to the direction arrow on the pump
casing before joint pump and motor together. Ensure that the pump is running freely without seizure
or friction.
2).Turn down discharge valve.
3).Fill the pump with liquid or priming with a vacuum pump.
4).Switch on power, gradually turn up discharge valve after pump operation runs normally to
achieve the target performance.
Caution: 3 minutes is the Max. continuous working time for a pump to operate with closed
discharge valve.
