Viking Pump TSM410.2: H-M 4625 - Manual (Page 5)

SECTION TSM 410 2 ISSUE D PAGE 5 OF 10
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 the chamber has
been completely vented through the
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 9.
If 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. Tap shaft forward approximately 0 50 inch and remove
pair of half round rings under inner bearing spacer collar
There is no pair of half round rings on H, HL, Q and M
size pumps
5. Carefully remove rotor and shaft to avoid damaging
bracket bushing
6. Remove rotary member of seal from shaft and stationary
seal seat from bracket
ITEM NAME OF PART ITEM NAME OF PART ITEM NAME OF PART
1 Locknut 13 Bracket Bushing 25 Head Gasket
2 Lockwasher 14 Pipe Plug 26 Idler Pin Sleeve & Self Lock Pin
3 End Cap (Outer) 15 Mechanical Seal 27 Idler Pin Sleeve
4 Lip Seal for End Cap 16 Spring Washer (M Only) 28 Head, Pin and Sleeve
5 Bearing Spacer Collar 17 Bracket Gasket 29 Stud for Head
6 Ball Bearing 18 Casing 30 Nut for Head
7 End Cap (Inner) 19 Pipe Flange Gasket 31 Relief Valve Gasket
8 Lip Seal for Seal Chamber 20 Nut for Flanges 32 Capscrew for Valve
9 Pressure Relief Plug 21 Stud for Flanges 33 Internal Relief Valve
10 Grease Fitting 22 Pipe Plug Flush Line (not illustrated)
11 Bracket and Bushing 23 Rotor and Shaft
12 Capscrew for Bracket 24 Idler and Bushing
EXPLODED VIEW FOR MODELS Q4625 AND M4625 (M4625 SHOWN)