Xylem AC8584C Series HSCS Base Mounted Centrifugal Pumps - Manual (Page 19)

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SER VICE INSTRUCTIONS
DISASSEMBLY AND REASSEMBLY PROCEDURES
The pr ocedures outlined in this section cover the dismantling
and reassembly of two different types of Series HSCS pump
construction.
A. HSCS pump with packing
B. HSCS pump with mechanical seals.
Each procedure provides the step-by-step instructions for dis-
mantling and then reassembling the pump, depending upon
the type of shaft seal used.
When working on the pump, use accepted mechanical prac-
tices to avoid unnecessary damage to parts. Check clear-
ances and conditions of parts when pump is dismantled and
replace if necessary. Steps should usually be taken to restore
impeller and casing ring clearance when it exceeds three
times the original clearance.
If your pump has adjustable wear rings, please refer to the
instructions on page 26.
A. DISMANTLING (PUMP WITH PACKING)
WARNING: Electrical Shock Hazard
Electrical connections to be made by a qualified
electrician in accordance will all applicable codes, ordi-
nances, and good practices. Failure to follow these
instructions could result in serious personal injury or death,
or property damage.
W ARNING: Unexpected Startup Hazard
Disconnect and lockout power befor e servicing.
Failure to follow these instructions could result in serious
personal injury or death, or property damage.
LUBRICATION FOR PACKING
“A”
LUBRICATION FOR
MECHANICAL SEALS
W ARNING:
Prior to working on pump the power
source should be disconnected with lockout provi-
sions so power cannot be re-energized to the motor. Close
isolating suction and discharge valves. Failure to follow
these instructions could result in property damage, severe
personal injury, or death.
TABLE “A”
Pump Size
Qty.
Dimension A
2-904-9
8x12x22M 26
13.50
8x12x22L 26
10x14x20S 26
12x16x23 26
15.81
14x16x17 24
14x18x23 32
10x14x20L 26 16.60
FIGURE 12 – ASSEMBLY SECTION: PUMP WITH PACKING
15.81