a guide for grease re-lubrication.
b. Oil. (Pumps are shipped without oil in the bearing housings.) Be
sure to fill and adjust constant level oilers before initial start of pump
(see Figure 9).
(1) Adjust dust cap to lowest possible position on base
fittings.
(2) The pipe nipple and base fitting must be level; check with spirit
level. If pipe nipple is bent, replace it. A constant level oiler that is not
level will not provide proper lubrication to the bearings.
(3) Fill bottle, screw it into the dust cap as far as it will go- do not
force. Allow the oil to flow into the bearing housing. Repeat this
procedure until there remains a supply of oil in the bottle. Never fill
bearing housing through base fitting.
(4) Check the breather tube for cleanliness. The breather tube must
be used with the oil lubrication system.
(5) The bottle on the constant level oilers is made of plastic- the oil
temperature must never exceed 170 degrees Fahrenheit.
Or solvents such as alcohol be put in it. For such
applications, use a glass bottle.
c. Consult the driver manufacturer’s Maintenance instructions for
lubricants and re-lubrication procedure for the driver bearings.
d. Replace coupling guard.
3-4. TEST. Follow instructions in Bulletin No. 2880549 to check out
the pump after repair.
3-5. TROUBLES. To reliably establish the malfunction-ing of either
the pump or driver, instruments such as tachometers, pressure
gauges and electric meters must be in proper working condition and
preferably of recent calibration. In many cases, much time and
expense have been expended with faulty instruments. Table V lists a
number of troubles commonly occurring. If unable to determine the
cause, and remedy the trouble, from this list, refer the problem to the
Peerless representative.
LUBRICATING INSTRUCTIONS
1. The pump is shipped without oil in the
LUBRICATING OILS
bearing housings. A high quality turbine oil of 330SSU viscosity at 100 degrees
2. Change the first oil after operating 1000 Fahrenheit with rust and oxidation inhibitors should be used.
hrs. or 60 days, whichever occurs sooner.
3. Frequency of oil change thereafter is
RECOMMENDED OIL MANUFACTURERS
dictated by service conditions. It is
suggested, however, that oil changes
occur at least every 3,000 hrs. of operation.
4. In order to keep the bearing housings
vented, the breather tubes and filters
must be kept clean.
Atlantic Richfield
DURO S-315, DURO AW S-315
Chevron
CHEVRON OC TURBINE OIL-68
Exxon TERESSTIC
68
Gulf
GULF HARMONY 68
Mobil
DTE 26 300SSU
Sunoco SUNVIS
968
FIGURE 9
TABLE V-TROUBLES
TROUBLE
PROBABLE CAUSE
REMEDY
Failure to deliver liquid or sufficient
pressure.
Pump not primed.
Pump not up to speed.
Discharge head too high.
Insufficient available NPSH.
Incorrect direction of rotation.
Air leaks in suction line or through suction
end stuffing box, suction pressure
below atmospheric.
Impeller passages restricted.
Worn impeller sealing diameters or
mating stationary part bores.
Damaged impeller.
Foot valve too small or restricted by dirt.
Leaking discharge check valve on
stand-by pump.
Recirculation valve open or leaking
Re-prime.
Check for low motor voltage or motor over-
load. Other drives, increase driver speed
when possible.
Check to see that all discharge valves are
opened and the discharge line is free from
obstructions. In some cases, the installation
has to be altered or a pump of suitable rating
must be provided.
Check NPSH requirements of pump and
increase system NPSH accordingly.
Check rotation of driver.
Tighten packing. Check for air leaks past
O-ring under sleeve. Passage from eye side
shroud of first stage impeller to suction stuffing
box must be open to deliver sealing fluid to
packing. Check suction line joints for air
leakage. Check mechanical seal if installed.
Disassemble the pump and clean impeller.
Repair or replace impeller and/or stationary
parts.
Repair or replace impeller.
Replace with adequate size foot valve or clean
foot valve.
Repair or replace.
Close, repair or replace.
11
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