Viking Pump TSM164: GG-AL 4197 - Manual (Page 9)

SECTION TSM 164 ISSUE F PAGE 9 OF 10
Mark the valve and head before disassembly to ensure
proper reassembly.
1. Remove the valve cap.
2. Measure and record the length of extension of the
adjusting screw. Refer to “A” on figures 14 and 15.
3. Loosen the locknut and back out the adjusting screw
until 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.
Reverse the procedures outlined under “Disassembly”
above. If the valve is removed for repair, be sure to replace in
the same position. The relief valve adjusting screw cap must
always point towards suction side of the pump. If the pump
rotation is reversed, remove the relief valve and turn end for
end. Refer to figure 3, page 3.
PRESSURE RELIEf VALVE
INSTRUCTIONS
fIgURE 14
VALVE - gg, HJ and HL SIZES
fIgURE 15
VALVE - AS, AK and AL SIZES
VALVE - LIST Of PARTS
1. Valve Cap 6. Valve Body
2. Adjusting Screw 7. Spring
3. Lock Nut 8. Poppet
4. Spring Guide 9. Cap Gasket
5. Bonnet
VALVE - LIST Of PARTS
1. Valve Cap 6. Valve Body
2. Adjusting Screw 7. Spring
3. Lock Nut 8. Poppet
4. Spring Guide 9. Cap Gasket
5. Bonnet 10. Bonnet Gasket
ASSEMBLY
DISASSEMBLY 1. A press must be used for installation.
2. Be certain the bushing is started straight.
3. Do not stop pressing the operation until the bushing is in
the proper position, as starting and stopping may result
in a cracked bushing.
4. Check the bushing for cracks after installation.
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.