ITEM
NAME OF PART
ITEM
NAME OF PART
ITEM
NAME OF PART
1
Locknut
13
Set Collar
25
Rotor and Shaft
2
Lockwasher
14
Pipe Plug
26
Idler and Bushing
3
End Cap (Outer)
15
Grease Fitting
27
Idler Bushing
4
Lip Seal for End Cap
16
Bracket and Bushing
28
Head Gasket
5
Bearing Spacer Collar
17
Capscrew for Bracket
29
Idler Pin
6
Ball Bearing
18
Bracket Bushing
30
Head and Idler Pin
7
End Cap (Inner)
19
Bracket Gasket
31
Stud for Head
8
Nut for Seal Holder
20
Stud for Flanges
32
Nut for Head
9
Capscrew for Seal Holder
21
Nut for Flanges
33
Relief Valve Gasket
10
Seal Holder Plate
22
Casing (QS size has opposite ports)
34
Capscrew for Relief Valve
11
Seal Holder
23
Pipe Flange Gasket
35
Internal Relief Valve
12
Mechanical Seal
24
Pipe Plug
Suckback Line, Not Illus.
EXPLODED VIEW FOR MODEL Q, QS AND M4125
DISASSEMBLY
DANGER
BEFORE OPENING ANY VIKING PUMP LIQUID
CHAMBER (PUMPING CHAMBER, RESERVOIR,
RELIEF VALVE ADJUSTING CAP FITTING ETC.)
BE SURE:
1.
THAT ANY PRESSURE IN CHAMBER HAS
BEEN COMPLETELY VENTED THROUGH
SUCTION OR DISCHARGE LINES OR OTHER
APPROPRIATE OPENINGS OR
CONNECTIONS.
2.
THAT THE DRIVING MEANS (MOTOR,
TURBINE, ENGINE, ETC.) HAS BEEN
“LOCKED OUT” OR MADE NON-
OPERATIONAL SO THAT IT CANNOT BE
STARTED WHILE WORK IS BEING DONE ON
PUMP.
3.
THAT YOU KNOW WHAT LIQUID THE PUMP
HAS BEEN HANDLING AND THE
PRECAUTIONS NECESSARY TO SAFELY
HANDLE THE LIQUID. OBTAIN A MATERIAL
SAFETY DATA SHEET (MSDS) FOR THE
LIQUID TO BE SURE THESE PRECAUTIONS
ARE UNDERSTOOD.
FAILURE TO FOLLOW ABOVE LISTED
PRECAUTIONARY MEASURES MAY RESULT IN
SERIOUS INJURY OR DEATH.
1.
Mark head and casing before disassembly to insure
proper reassembly. The idler pin, which is offset in pump
head, must be positioned toward and equal distance
between port connections to allow for proper flow of
liquid through pump.
Remove head from pump.
Do not allow idler to fall
from idler pin.
Tilt top of head back when removing to
prevent this. Avoid damaging head gasket. If pump is
furnished with pressure relief valve, it need not be
removed from head or disassembled at this point.
Refer
to Pressure Relief Valve Instructions,
page 11.
If LS pump has jacketed head plate, it will separate from
head when it is removed. The gasket between head and
jacket head plate must be totally removed. Use new
gasket when assembling pump. Q, QS, and M pumps
have one piece gasket.
2.
Remove idler and bushing assembly.
3.
Insert length of hardwood or brass through port opening
between rotor teeth to keep shaft from turning. Bend up
tang of Iockwasher and with a spanner wrench remove
locknut and lockwasher from shaft.
4.
Standard Mechanical Seal (synthetic rubber bellows
type) uses a set collar behind the seal spring. Two
setscrews must be loosened before shaft can be
removed. Access to collar setscrews is through seal
access hole on right hand side of mounting bracket
(viewed from shaft end,
Refer to Figure 6.
)
5.
Tap shaft forward approximately 0.5 inch and remove
pair of half round rings under inner spacer collar. There
is no pair of half round rings on Q, QS and M size
pumps.
Refer to Figure 7.
6.
Carefully remove rotor and shaft to avoid damaging
bracket bushing.
7.
Remove seal holder and seal holder plate.
8.
The seal seat and rotary member of the seal can now be
removed from the side opening of bracket.
SECTION TSM 141.2
ISSUE
C
PAGE 7 OF 13
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