Viking Pump TSM151.2: LS-M 123/4123 - Manual (Page 14)

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.
PRESSURE ADJUSTMENT
If a new spring is installed or if pressure setting of pressure
relief valve is to be changed from that which the factory has
set, the following instructions must be carefully followed.
1. Carefully remove valve cap, which covers adjusting
screw.
Loosen locknut, which locks adjusting screw so
pressure setting will not change during operation of
pump.
2. Install a pressure gauge in discharge line for actual
adjustment operation.
3. Turn adjusting screw in to increase pressure and out to
decrease pressure.
4. With discharge line closed at a point beyond pressure
gauge, gauge will show maximum pressure valve will
allow while pump is in operation.
IMPORTANT
In ordering parts for pressure relief valve, always give model
number and serial number of pump as it appears on
nameplate and name of part wanted. When ordering
springs, be sure to give pressure setting desired.
WARRANTY
Viking warrants all products manufactured by it to be
free from defects in workmanship or material for a
period of one (1) year from date of startup, provided
that in no event shall this warranty extend more than
eighteen (18) months from the date of shipment from
Viking. If, during said warranty period, any products
sold by Viking prove to be defective in workmanship or
material under normal use and service, and if such
products are returned to Viking’s factory at Cedar Falls,
Iowa, transportation charges prepaid, and if the
products are found by Viking to be defective in
workmanship or material, they will be replaced or
repaired free of charge, FOB. Cedar Falls, Iowa.
Viking assumes no liability for consequential
damages of any kind and the purchaser by acceptance
of delivery assumes all liability for the consequences of
the use or misuse of Viking products by the purchaser,
his employees or others. Viking will assume no field
expense for service or parts unless authorized by it in
advance.
Equipment and accessories purchased by Viking
from outside sources, which are incorporated into any
Viking product, are warranted only to the extent of and
by the original manufacturer’s warranty or guarantee, if
any.
THIS IS VIKING’S SOLE WARRANTY AND IS IN
LIEU OF ALL OTHER WARRANTIES,
EXPRESSED OR IMPLIED, WHICH ARE
HEREBY EXCLUDED, INCLUDING IN
PARTICULAR ALL WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE.
No officer or employee
of IDEX Corporation or Viking Pump, Inc. is
authorized to alter this warranty.
VIKING PUMP INC. ∙
A Unit of IDEX Corporation
VIKING PUMP INC. ∙
Copyright 2000 ∙
ASSEMBLY
Reverse procedures outlined under Disassembly. If valve is
removed for repairs, be sure to replace in same position.
Relief valve adjusting screw cap must always point towards
suction side of pump. If pump rotation is reversed, remove
relief valve and turn end for end. Refer to Figures 1 and 2,
page 1
TECHNICAL SERVICE MANUAL
HEAVY-DUTY STEEL EXTERNAL BRACKET MOUNTED PUMPS
SERIES 123 AND 4123
SIZES LS, Q, QS, M
SECTION TSM 151.2
PAGE 14 OF 14
ISSUE B