Goulds Pumps VRS - IOM - Manual (Page 29)

DISASSEMBLY AND REASSEMBLY
PUMP DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Disassembly of Wet End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Disassembly of Power End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
INSPECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Impeller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Suction/Gland Liners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Column Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Seals, O-Rings, Gaskets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
REASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Reassembly of Power End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Reassembly of Wet End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Reassembly of Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
REFER TO FIGURES AT END OF MANUAL FOR DISASSEMBLY AND REASSEMBLY.
PUMP DISASSEMBLY
DISASSEMBLY OF WET END
s
! WARNING
Lockout driver power to prevent accidental startup.
1. Lockout power supply to motor.
2. Close discharge valve. Drain the pump.
s
! WARNING
The pump may handle hazardous and/or toxic fluids.
Hazardous fluids may be under pressure and may erupt
when pump is opened, particularly if pump is hot.
Allow pump to cool and open cautiously. Skin and eye
protection may be required. Precautions must be taken
to prevent injury or environmental damage. Always
know the contents of the pump prior to opening it.
Failure to do so can result in death, personal injury or
property or environmental damage.
3. Remove piping from pump.
4. Remove coupling guard (direct connect) or belt guard
and belts (belt drive). Remove motor.
5. Remove pump from sump and lay on horizontal
surface.
6. Wash down pump and inside column pipe and casing
with appropriate cleaner.
7. Remove motor mount and coupling (direct drive) or
sheave (belt drive) from the pump.
8. Remove strainer, and/or tailpipe from suction half
casing (100A), if supplied.
9. Remove the discharge pipe assembly (195) from
bearing frame (228) and casing (100A/D), if
applicable.
s
! WARNING
Suction casing (100A) must be supported before
removing tiebolts.
10. Remove the suction half casing (100A). The suction
liner (600R) will be attached to the casing.
11. Remove the suction liner (600R) from the suction half
casing (100A).
s
! WARNING
Do NOT apply heat to the hub or nose of the impeller
due to the danger of explosion.
12. Unscrew the impeller (101) from the shaft (122) by
clamping the shaft and turning the impeller in the
direction for a normal right hand thread (counter-
clockwise when viewing eye of impeller). After
removing impeller, wrap tape around shaft threads to
VRS IOM - 5/08
23
6