Circor IMO E12L Series, Product Service Manual

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H. PUMP MAINTENANCE
WARNING
Failure to observe precautions while installing, inspecting, and maintaining the pump can
cause injury to personnel from accidental handling of liquids that may harm skin or clothing,
or fire hazard risks from flammable liquids, or injury from high pressure fluid jets.
DANGER
Before working on equipment, make sure all power to the equipment is disconnected and
locked-out.
H.1 GENERAL
COMMENTS
NOTE: Part number identifiers (IDPs) contained within parenthesis such as (10) refer to the circled
numbers shown on the assembly drawing. See Figure 3, 4 and 5, Tables 3 and 4.
H.2 TOOLS REQUIRED
The procedures described in this manual require common mechanics hand tools, a torque wrench,
dial indicator and suitable lifting device (such as) slings, straps, etc.
H.3 PUMP DISASSEMBLY
SPECIAL NOTE: To service mechanical seal and ball bearings ONLY, perform H.3, Steps
1, 5 and H.4, Steps 3, 4, 7 and 8 ONLY.
H. 4 Before starting pump disassembly perform the following:
a. De-energize driver.
b. Close all inlet and outlet valves.
c. Vent pressure from pump and drain pumping liquid.
d. Remove cap screws and lock washers from inlet and outlet flange fittings.
e. Remove any O-rings from inlet and outlet flange grooves.
f. Remove pump from driver by removing coupling hub and key (27) from power rotor (23)
shaft.
G. Remove pump from its mounting and locate on a suitable work bench.
NOTE: The Series E12L pumps incorporate highly finished precision parts that must
be handled carefully to avoid damage to critical machined surfaces. The parts removed
should be tagged for identification and their exact positions in the pump carefully noted
so that new parts, or the same parts, are properly replaced without damage.
5
CAUTION ATTENTION
Fluid leakage from disassembly of pump may make the floor slippery and can
cause personal injury.