PETROLEUM SELF-PRIMING CENTRIFUGAL PUMPS
INSTRUCTION BULLETIN
SIZE: 30 AND 40
Read this bulletin in full before installing, operating or servicing this pump. If any of the warnings
of this bulletin are ignored serious injury or death could occur.
WARNING!
This pump was designed to handle volatile and flammable fluids. To reduce the risk of
fire or explosion keep pump in well ventilated area free of explosive atmosphere. Do
not smoke where there is fuel being handled, also keep away from any sparks or open
flame. Do not operate pump with either the suction or discharge valves fully closed
as this will over heat the pump. If pump becomes overheated allow to cool before
next use.
Do not operate the pump in a manner that
it was not intended to be used.
Do not install a piping system that does Do not continue to operate the pumping
not allow for any flex due to expansion from system when unusual noise or vibration
heat generated by the pumping system.
Do not allow severe temperature changes Do not perform service or maintenance
to occur in a short time period within the when the pumping system is
pumping system.
Drain pump completely before switching Do not mount pump in conditions that
fuel type that is to be pumped. high piping loads exist on the pump
Do not continue to operate the pumping
system when a known leak exists or the
system starts to smoke.
occurs.
pressurized or hot.
flanges.
MODELS:
PO : Diesel, Biodiesel
and Fuel Oil
PG : Gasoline, Kerosene,
AV Gas, and Jet Fuels.
PE : Ethanol and E-85
FORM 3075-A (6/08)
PRINTED IN THE U.S.A.
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PETROLEUM SELF-PRIMING CENTRIFUGAL PUMPS
INSTRUCTION BULLETIN
It is important that this Instruction Bulletin be read carefully to fully familiarize yourself with the pump
assembly arrangement. The instructions contained herein pertain to installation and maintenance
of the PO, PG, PE 30 and 40 pump assembly only. Check unit carefully to make certain that no parts
are missing or have been broken in shipment. Your pump may been provided as a pumpak assembly or
included a driver such as a closed coupled electric explosion proof motor. Please verify which driver
is on your pump to know which sections of this document pertain to you.
PUMPAK ASSEMBLY (SIZE 30 ONLY) priming at initial start-up.
1. Loosen the drive sleeve clamp.
2. Slide the pump onto the driver by hand. After start up check for leaks anywhere on
This should not require extreme force. the pump or pluming, and tighten any bolts
3. Install and tighten fasteners (4 screws) or nuts as necessary.
into the pump adaptor securing the driver.
4. Tighten drive sleeve clamp nuts to 20-26 ft. lbs. If pump fails to prime or stops pumping,
5. Remove the metal shim strap that spaces check for the following possible causes:
the impeller by pulling it out of the discharge.
6. Rotate the shaft ensuring that the pump 1. No liquid in the pump housing
rotates freely before putting into service. 2. Air leak in the suction line due to loose
connections or pin holes in the hose.
BEARING HOUSING MOUNTING 3. Collapsed suction line or clogged strainer
The bearing housing must be above the pump in 4. Seal worn and leaked air.
any non horizontal application to prevent bearing 5. Worn impeller - too much clearance
damage due to liquid leakage. The pedestal or between impeller and wear plate.
foot mounted pumps, when provided with a driver 6. Pump not running fast enough.
and a coupling are mounted on a steel base plate. 7. Suction lift is too high.
Recheck after unit has been set in place. 8. Trying to prime against too high a
discharge head.
INSTALLATION
DISASSEMBL
For optimum performance, place pump as close
to liquid source as possible to reduce suction lift Disconnect power to prevent accidentally
to a minimum. For best results, pump should be starting. Disconnect lines and drain pump
installed not more than 15 feet above the liquid housing.
supply. Set the unit on solid footing and as nearly
level as possible. MAINTENANCE
Pipe or hose of the same size as flanges provided Use the exploded parts view with these
should be used. Reinforced suction hose is
recommended because it provides greater replacement parts for the pump.
flexibility and prevents collapsing due to vacuum
in the suction line when pump is in operation. Disconnect and remove the pump end from
Suction line should be as short as possible to keep the driver. Remove and replace the suction
friction loss at a minimum. Use pipe sealant on all and discharge gasket. Tighten the inlet and
connections and make certain that all fittings are discharge flange to 24-ft lbs. Remove nuts
tight, particularly on the suction line where an air from the adaptor and disassemble the
leak can prevent priming or reduce pump capacity. rotating assembly from the housing. Inspect
OPERATION if necessary using new screws, gaskets
This petroleum pump is a self-priming centrifugal from the adaptor and discard. Impellers
pump and only requires priming prior to its initial are threaded onto a drive sleeve and
start. The pump will retain sufficient liquid for self- secured by a jam nut.
priming thereaftyer. If the pump has a discharge
valve it must be fully open to expel air during
instructions and note recommended
the wear plate for abrasive wear and replace
and acorn nuts. Remove the seal seat
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Operating the pump dry will seriously damage
the seal. shaft seal. The self-lubricated seal is
If the pump is to be left standing idle for an
length of time in freezing conditions, the pump
housing should be drained. Draining is provided
for by a plug at the base of the pump housing. Foreign matter between sealing faces will
TO REMOVE PUMP HOUSING
Remove capscrews and nuts holding pump
housing to base (where used). Replace gaskets on pump housing and
Remove nuts and lock washers holding pump lock washers and nuts on studs diagonally
housing to adapter. across from each other and tighten. Turn
Loosen the housing and remove carefully to at housing outlet opening for any impeller
prevent tearing gaskets. rubbing on the housing or wear plate.
REASSEMBLY
MOUNTING ADAPTE
Before mounting adapter, clean counterbore to space impeller.
thoroughly.
Clean and lubricate the synthetic member on replace lock washers and nuts on remaining
seal seat and press (do not drive) the assembly studs and tighten. If capscrew and nuts are
into the adapter counterbore, seating it firmly and used to hold housing to mounting base,
squarely against the shoulder being sure that the replace these and tighten.
polished side is facing up.
This pump is equipped with a self-lubricated
lubricated by the liquid in the pump.
CAUTION
cause leakage and shorten life of the seal.
MOUNTING PUMP HOUSING
mount housing on the adapter. Replace two
drive shaft over slowly by hand and listen
The clearance between the impeller and
wear plate can be checked with a feeler
gauge. Normal clearance is .015" to .025".
If clearance exceeds .025" readjust impeller.
If the impeller rubs use an additional gasket
After clearance has been established,
CAUTION
In handling, avoid dropping seat and take particular care
not to scratch the lapped face.
Press the seal assembly on to the drive sleeve
using a water-soluble lubricant to aid in pressing
the seal assembly.
IMPORTANT
The assembly of impeller and seal to the drive
shaft should take place as soon as the bellows
assembly is slipped on the impeller sleeve so as
to avoid bonding of the bellows to the sleeve at
the impeller working working height.
FORM 3075-A (6/08)
PRINTED IN THE U.S.A.
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