SPX Marley MH Series User manual

fluid cooler pump
INSTALLATION - OPERATION - MAINTENANCE
uk_M05-1109A ISSUED 03/2014 READ AND UNDERSTAND THIS MANUAL PRIOR TO OPERATING OR SERVICING THIS PRODUCT.
USER MANUAL

2
contents
Inspection .....................................................................................................................3
Handling........................................................................................................................3
Operation......................................................................................................................3
Maintenance.................................................................................................................5
Mechanical Seal Assembly.......................................................................................6
Mechanical Seal Replacement ................................................................................9
Note
This manual contains vital information for the proper operation and
maintenance of your Marley MH Fluid Cooler Pump. Carefully read
the manual before operation and follow all instructions. Save this
manual for future reference.
Indicates presence of a hazard which will or can cause personal
injury or property damage if ignored.
Indicates special instructions on installation, operation or
maintenance which are important but not related to personal injury
hazards.
Caution
Note
The following defined terms are used throughout this manual to bring attention
to the presence of hazards of various risk levels, or to important information
concerning the life of the product.

3
inspection
Pre-Start
Before initial start of the pump, check as follows:
1. The rotation must be checked upon installation. Close, then break the
contacts quickly and observe the rotation of the exposed portion of the
rotating parts. Rotation must agree with the rotation arrow on the motor. For
all pumps, the standard rotation is counterclockwise when viewed from the
suction end. Motor wiring is easily changed in the field. Observe the wiring
diagram on the inside of the terminal box cover, or on the motor nameplate.
2. Check voltage, phase and frequency of line circuit with motor nameplate.
3. Check the suction hood and discharge piping for proper installation.
4. Assure that the collection basin is filled with water to the level indicted
in Startup portion of the MH Fluid Cooler User Manual. This water level
ensures that the pump is primed.
Check pump for shortage and damage immediately upon arrival.
Note damage or shortage on freight bill (bill of lading); immediately
notify your Marley sales representative.
EXTERIOR
Pay particular attention to conduit box, external hardware and accessories.
Touch up abrasions or scratches with approved paint.
INTERNAL
If extensive or serious external damage is noted, if impeller is damaged (look
in ports), or if shaft binds or sticks, disassemble as required to permit internal
inspection.
handling
Handle with care. Dropping or jarring can seriously damage motor
bearings or break pump parts. Lift with device having capacity for
pump weight, and use lifting hooks or eye bolts (if provided) or rig
double sling around motor frame and pump casing. Do not use sling
through pump motor adapter nor around suction and discharge
flanges.
operation
Caution
Note
➠

4
operation
Do not run pump dry hoping it will self-prime.
Serious damage may result if started dry.
Starting
Proceed as follows to start pump:
1. Prime the pump as outlined in Pre-Start. If pump does not prime properly,
or loses prime during start-up, shut down and correct condition before
repeating procedure.
2. Start the motor (pump).
Running
Periodically inspect pump while running, but especially after first start and
following repair.
1. Check pump and piping for leaks. Repair immediately.
2. Record voltage, amperage per phase, and kW (if an indicating wattmeter
is available).
Freezing Protection
Protect pumps shut down during freezing conditions by one of the
following methods:
1. Drain pump; remove all liquid from the casing.
2. Keep fluid moving in pump and insulate or heat the pump to prevent freezing.
If heated, do not let temperature go above 38° to 66°Cº.
3. Fill pump completely with antifreeze solution.
Caution

5
➠
maintenance
Cleaning
• Remove oil, dust, dirt, water, chemicals from exterior or motor and pump.
• Keep motor air inlet and outlet open.
• Blow out interior of open motors with clean compressed air at low pressure.
• Regularly drain moisture from TEFC motors.
Temperature
Total temperature, not the rise, is the measure of safe operation for a motor.
If temperature by thermometer exceeds limits for insulation class, investigate
and change operating conditions.
Labeled Motors
It is imperative for repair of a motor with Underwriters’ Laboratories label that
original clearances be held; that all plugs, screws, other hardware be fastened
securely, and that parts replacements be exact duplicates or approved equals.
Violation of any of the above invalidates Underwriters’ label.
Lubrication
Pumps should requireno maintenance. Dueto the doubleshielded prelubricated
bearings, no lubrication is required for the life of the bearings. Inspect bearings
periodically to determine the condition of the grease and replace the bearings
if necessary.