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Recommended Renewal Parts and Replacement Procedures
Ch 7 Recommended Renewal Parts and
Replacement Procedures
a. o
rDering
i
nstructions
1. Order renewal parts from Powell at
2. Always specify the complete nameplate
information including:
• Controller Type
• Serial Number
• Rated Voltage
• Rated Amps
• Impulse Withstand
• Control Voltage (for control devices and
coils)
3. Specify the quantity and description
of the part and the instruction bulletin
number. If the part is in any of the of the
recommended renewal parts tables, specify
the catalog number. If the part is not in
any of the tables, a description should be
accompanied by a marked illustration from
this instruction bulletin, a photo, or simply
submit a sketch showing the part needed.
B. r
ecoMMenDeD
r
enewal
p
arts
For timely and cost-effective replacement of
worn, broken, or damaged parts, a sufficient
supply of renewal parts should be purchased
and stored appropriately.
(See
Maintaining a supply of renewal parts enables
the purchaser to replace damaged parts
quickly with a result of reducing the amount
of service interruption time. See
Ch 7 Recommended Renewal Parts and
Replacement Procedures, D. Replacement Parts,
for a list of renewal parts
for equipment described in this document.
1) Renewal Parts Quantity
The needed quantity of renewal spare parts
varies. The purchaser should determine
which parts and the quantity needed
depending on their particular application
and the following factors:
• Amount of time to acquire renewal
parts
• Critical need for continuous operation
• Harsh environmental conditions that
may affect part stability
• Severe service requirements that may
affect part durability
The parts tables included in this instruction
bulletin may list recommended quantities
of renewal parts to be carried in stock. As a
minimum, it is recommended that one set
of renewal parts be stocked per unit.
Over time, improvements may be made to
renewal parts. Therefore, spare or renewal
parts may not be identical to the original
parts. However, the furnished replacement
parts are interchangeable with the original
parts.
c. r
eplaceMent
p
roceDures
Powell recommends that only qualified
technicians perform maintenance on the
equipment described in this instruction
bulletin. Therefore, if vacuum contactors are
installed in a location that is not maintained
by a qualified technician, a spare vacuum
contactor should be stored on site for vacuum
contactor replacement. Thus, the spare
vacuum contactor can be placed into service
and the malfunctioning unit can be returned to
the factory for reconditioning.
