2.
Before hydrotesting the pump all air must be removed from the suction priming chamber. This is
done by:
a) Removing pipe plug from check valve cover plate (76).
b) Installing a pet cock valve (not supplied by ITT) in place of pipe plug.
c)
With pet cock open fill casing (1) with fluid being pumped through filler plug (98) provided on
top of casing. Do not close pet cock until all air is out of casing (as shown by a solid stream of
liquid coming out of pet cock).
d) Close pet cock, reinstall filler plug. Unit is now ready for hydrotest.
6.5 Disassembly
6.5.1 Disassembly precautions
WARNING:
•
Failure to disconnect and lock out driver power may result in serious physical injury or
death. Always disconnect and lock out power to the driver before performing any installa-
tion or maintenance tasks.
•
Electrical connections must be made by certified electricians in compliance with all
international, national, state, and local rules.
•
Refer to driver/coupling/gear manufacturer's installation and operation manuals
(IOM) for specific instructions and recommendations.
•
Risk of serious personal injury. Applying heat to impellers, propellers, or their retaining
devices can cause trapped liquid to rapidly expand and result in a violent explosion. This
manual clearly identifies accepted methods for disassembling units. These methods must
be adhered to. Never apply heat to aid in their removal unless explicitly stated in this
manual.
•
Handling heavy equipment poses a crush hazard. Use caution during handling and wear
appropriate Personal Protective Equipment (PPE, such as steel-toed shoes, gloves, etc.)
at all times.
•
Precautions must be taken to prevent physical injury. The pump may handle hazardous
and/or toxic fluids. Proper personal protective equipment should be worn. Pumpage must
be handled and disposed of in conformance with applicable environmental regulations.
•
Risk of serious physical injury or death from rapid depressurization. Ensure pump is iso-
lated from system and pressure is relieved before disassembling pump, removing plugs,
opening vent or drain valves, or disconnecting piping.
•
Risk of serious personal injury from exposure to hazardous or toxic liquids. A small
amount of liquid will be present in certain areas like the seal chamber upon disassembly.
CAUTION:
•
Avoid injury. Worn pump components can have sharp edges. Wear appropriate gloves
while handling these parts.
6.5.2 Tools required
In order to disassemble the pump, you need these tools:
•
Lifting eyebolt (dependent on pump / motor size)
6.5 Disassembly
38
Model Trash Hog II Installation, Operation, and Maintenance Manual
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