EXPLODED VIEW Q, QS, AND M125
ITEM
NAME OF PART
ITEM
NAME OF PART
ITEM
NAME OF PART
1
Locknut
13
Bracket Bushing
25
Idler Bushing
2
Lockwasher
14
Bracket and Bushing
26
Head Gasket
3
End Cap (Outer)
15
Grease Fitting
27
Idler Pin
4
Lip Seal for End Cap
16
Capscrew for Bracket
28
Head and Idler Pin
5
Bearing Spacer Collar
17
Bracket Gasket
29
Stud for Head
6
Ball Bearing
18
Nut for Flanges
30
Nut for Head
7
End Cap (Inner)
19
Stud for Flanges
31
Relief Valve Gasket
8
Packing Gland
20
Casing (QS size has opposite ports)
32
Capscrew for Relief Valve
9
Packing Gland Nut
21
Pipe Flange Gasket
33
Internal Relief Valve
10
Packing Gland Capscrew
22
Pipe Plug
Suckback Line, Not Illus
11
Packing
23
Rotor and Shaft
12
Packing Retainer Washer
24
Idler and Bushing
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.
SECTION TSM 141.2
ISSUE
C
PAGE 4 OF 13
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.
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 lockwasher and with a spanner wrench remove
locknut and lockwasher from shaft.
4.
Remove packing gland nuts.
5.
Tap shaft forward approximately 0.5
inch and remove
pair of half round rings under inner bearing spacer
collar.
6.
Carefully remove rotor and shaft to avoid damaging
bracket bushing.
7.
Remove packing gland from side of bracket.
8.
Loosen four setscrews over the inner and outer end
caps. Remove both end caps with lip seals, spacer
collars and ball bearing.
Refer to Figure 5.
The inner cap can be removed through the side opening
of the bracket.
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