MSI QI-1000, Technical Manual, Page: 17 / 56

3.00 Scheduled Maintenance
MSI recommends that all pumps have regular scheduled maintenance. Regular maintenance will help
ensure trouble-free operation.
3.10 First 100 Hours of New Pump Operation
a) Change Power Frame lube oil filters every 25 hours
b) Thoroughly clean the Power Frame lube oil suction strainer after the first 50 hours and 100
hours of operation.
c) Change the Power Frame lube oil after the first 100 hours of operation and clean the lube oil
reservoir.
3.20 Daily Preventative Maintenance
a) Check the oil level in the Power Frame lube oil reservoir.
b) Check the oil level in the plunger lube oil reservoir.
c) Check the plunger pump for oil leaks and/or fluid leaks.
d) Check the Power Frame lube oil system for leaks.
e) Check the plunger lube system for leaks.
f) Check the supercharge piping for leaks.
g) Check the Fluid End bolts. Each has a mechanical indicator in the face and should read
between 90 and 95 on the dial. Tighten as necessary, but do not exceed 95 on the dial. If the
indicator is not working return it to MSI for immediate replacement. Note: In order to achieve
the necessary preload without damaging the bolt, use DOW CORNING G-n Metal Assembly
Paste as a thread lubricant.
3.30 Weekly Preventative Maintenance
a) Check all items on “daily” list.
b) Check all valves, inserts, valve seats and springs.
c) Check all discharge and suction cover seals.
d) Check suction pulsation dampener for correct pre-charge if applicable
3.40 Every 100 hours Preventative Maintenance
a) Check all items on “daily” and “weekly” lists.
b) Check all plunger pump-mounting bolts to ensure that they are tight.
c) Change Power Frame lube oil filters.
d) Check all supplies needed for routine maintenance such as o-rings, fluid seals, valves, valve
inserts, valve seats, valve springs, packing, oil seals, filter elements, etc.