Supersedes 3200-326
Sep., 2015 Mar., 2016
Cornell Pump Company
Startup Checklist
BEFORE THE STARTUP OF ANY PUMP, A CAREFUL CHECK MUST BE MADE TO ENSURE THAT ALL IS IN ORDER
1. Reread all instructions and check for compliance on each point.
2. Make sure:
a. All fasteners at gasketed surfaces are properly tightened.
b. Belts and couplings (shaft) are properly adjusted, aligned, and guards are in place.
c. All thrust blocks and supports are adequate.
d. The pump and/or baseplate is bolted securely to a solid foundation. There must be no piping loads
on the pump casing, support suction or discharge piping, and piping must be clean and free of debris
and obstruction, gaskets in place and all joints secure.
e. That all electrical connections and electrical equipment are installed by a qualified and
licensed electrical contractor.
f. The pump rotates freely by hand. Then check the pump rotational direction with very
short on/off power pulses on the starter switch.
g. Pumps with cutting mechanism or axial adjusted wear plates should be checked for
proper axial clearances. This includes MP and SP slurry pumps, cutter pumps, ST self-
primers, and chopper pumps product lines. See section in manual pertaining to wear plate or cutter
adjustment for proper clearance for adjustment and procedure.
h. Pumps with mechanical seal must not run dry unless equipped with the run-dry feature.
CAUTION
Some pumps are equipped with threaded shafts (Food pumps, etc.). Improper rotation will cause
failure and costly repairs. If you are unsure if your pump has a threaded shaft, contact factory.
Pumps with mechanical seal must not run dry unless equipped with run-dry option.
3. Check the valves for proper position. If the system has a discharge gate valve, start with valve closed.
The speed of opening depends upon the size and length of your discharge pipe and capacity of the pump.
The valve should not be more than .25" open until the line is filled. The purpose of this procedure is to
reduce the possibility of a water hammer or shock if filling is too rapid.
4. For Stuffing Box with Packing
When first starting the pump, there should be a leakage. If the packing is too loose, air will suck in
around the packing and the pump will not prime. After the pump is primed, back off on packing gland
nuts to free leakage. Several minutes later, gradually and evenly tighten packing gland nuts until
leakage is reduced to a trickle. Do not attempt to shut off all the leakage.
For Stuffing Box with Mechanical Seal
Read and comply with all seal instructions within manual. During shipment a seal may be jolted, which
could cause leakage. However, any leak should stop after a brief period of operation.
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