12. If pump has mechanical seal, install inboard cover (4) on housing (1) without seal installation tool.
CAUTION
ATTENTION
To maximize seal life, seal vent in cover must be oriented at 12:00 o'clock when pump is
horizontally mounted in its installed position. Vent orientation not critical when unit is
vertically mounted.
13. Install the four bolts (6) into inboard cover (4) and thread bolts into housing (1). Torque bolts to values
shown on assembly drawing.
14. Install O-ring (31) in groove in inlet head (2).
15. Install inlet head (2) onto housing (1) with cap screws (3 or 6).
16. Install
key (13) into power rotor (7) keyway and coupling on shaft (7).
17. On pumps with external relief valves, install relief valve using cap screws (5) and O-ring (10). See
figure 8. Relief valve can be installed in original position or facing 180° from original position.
. - INSTALLATION, ALIGNMENT AND TROUBLESHOOTING
Install coupling to driver shaft and align pump and driver as detailed in Installation Manual, CA-1.
After pump is connected to piping and inlet and outlet valves are open, be sure to vent air from seal
chamber before starting pump by opening pipe plug at inboard end of pump until oil comes out. This will
assure that seals are lubricated at startup.
For detailed instructions regarding installation, alignment, operation and trouble shooting, see General
Installation, Operation, Maintenance & Troubleshooting Manual, CA-1.
J. - FIELD AND FACTORY SERVICE AND PARTS
Imo Pump maintains a staff of trained service personnel that can provide pump installation, pump start-
up, maintenance/overhaul and troubleshooting supervision as well as installation and maintenance
training.
Our factories provide maintenance as well as overhaul and test facilities in the event the user prefers to
return pumps for inspection or overhaul. Pumps that have been factory-overhauled are normally tested
and warranted “as-new” for a period of one year from date of shipment.
For either field service or factory overhaul assistance, contact your local Imo Sales Office or
representative at the Technical/Customer Service Department in Monroe, NC, USA.
Most pumps have minor repair kits available. Minor Repair Kits are used to repair leaking seals, bad
bearings and/or for re-assembly after pump tear-down. They include (as applicable) pump shaft seals,
packing, all gaskets/O-rings and bearings. Since kits have all the necessary parts, it is preferred that
they be purchased rather than selecting individual parts. When parts are individually selected from the
Parts List, some needed components are often overlooked. In addition, mixing worn or used parts with
new parts risks rapid wear and shortened service life from the new parts.
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