Viking Pump TSM442: GG-AL 4195-G LP-Gas - Manual (Page 7)

SECTION TSM 442 ISSUE C PAGE 7 OF 10
fIgURE 7
“aS”, “ak” aND “aL” SIZE
VaLVE - LIST Of PaRTS
1 Valve Cap 6 Valve Body
2 Adjusting Screw 7 Valve Spring
3 Lock Nut 8 Poppet
4 Spring Guide 9 Cap Gasket
5 Bonnet 10 Bonnet Gasket
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.
DaNgER !
before starting pump, be sure all drive
equipment guards are in place.
failure to properly mount guards may
result in serious injury or death.
DISaSSEMbLY
1. Remove the valve cap
2. Measure and record the length of extension of the
adjusting screw
3. Loosen the locknut and back out the adjusting screw
until the spring pressure is released
4. Remove the bonnet, spring guide, spring and poppet
from the valve body Clean and inspect all parts for wear
or damage and replace as necessary
Follow the procedure outlined under Disassembly
When ordering springs, be sure to give the pressure setting
desired If valve is removed for repairs, be sure to replace
in same position The valve cap should point towards the
suction port
In ordering parts for relief valve on head, always be sure
to give Model and Serial Number of pump as it appears on
nameplate and the name of the part wanted When ordering
springs, be sure to give the pressure setting desired
aSSEMbLY
IMPORTaNT