Instruction Manual for F1300/1600 Mud Pump
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9) Loose piston bar clamp every day and check if clamp conical face, piston bar and mid tension bar
connecting face are clean, then rotate the piston bar a quarter of one circle to tighten, which makes
the wear face of piston bar evenly distributed and prolongs the service life of piston and liner.
10) Before tightening the valve cover, the lubricating grease should be coated on the threads and be
checked once four hours for loosing.
11) Check often the alarm bore of valve covert seal and liner seal (including the seal between the
wearing plate and cylinder), if the mud discharges, the relative seal ring should be changed.
4.2
Weekly Maintenance
1)
Disassemble the valve cover
、
liner and clean them every week, meanwhile coat extreme pressure
lithium base grease.
2)
Check the inner sleeve of valve rod guide, if there is sharp abrasion (that means the clearance
between the valve guide pole and guide exceeded 3mm), it should be changed to avoid the guide
failing to guide the valve motion in the right way and accelerating the abrasion of valve.
3)
Check the valve and valve seat, change the heavy worn or pierced valve body, valve rubber and
valve seat (when changing the valve seat, the valve body should be changed at the same time).
Check the spring and change the broken or inelastic spring.
4)
Check the locknuts of piston. The corrosive or damaged locknuts should be changed. (The seal
rings in the locknuts will fail after the locknuts are tightened three times.)
5)
Drain water one time from the plug of drain flange until oil comes out.
6)
Check and clean the filter screen in the lubricating oil line.
4.3
Monthly Maintenance
1)
Check all the stud bolts and nuts of fluid end. For example: cylinder head flange nuts, nuts
connecting the cylinder to frame, the bolts and nuts on the suction and discharge manifold. If they are
loose, they should be tightened to the specified torque value.
2)
Check the seal rings in the stuffing box of extension rod. The worn one should be changed.
Usually, change it at least once every three months. Attention should be taken to the oil seal position
when changing.
3)
Remove and clean the filter installed in the discharge manifold.
4)
Change the oil of power end every six months. Drain the dirty oil in the oil pool and the oil groove
of crosshead and clean these oil grooves at the same time.
4.4
Yearly Maintenance
1)
Check the wear of crosshead and guide plate faces; check if the crosshead guide is loose, if the
crosshead running clearance conforms to requirements. The clearance can be adjusted by adding
shim under the guide or rotating the crosshead 180° (now change the crosshead position for easy
operation).
2)
It is recommended check the whole pump completely every two or three years, check if the main
bearing, connecting rod bearing, crosshead bearing, input shaft bearing are worn or outworn. They
should be changed if they can’t be used any more.
3)
Check the wear of gear pair, if they are worn sharply, the drive shaft and the driven shaft should
be turnaround installed to use the face that isn’t worn.
For the convenience of consulters, checkpoints are listed in table 7 and Fig.24.
