Viking Pump TSM320.2: GG-HL 75/475 - Manual (Page 9)

SECTION TSM 320.2
PAGE
9 OF 9
ISSUE F
VIKING PUMP, INC. • A Unit of IDEX Corporation •
Cedar Falls, IA 50613 USA
© 3/2013 Viking Pump Inc.
All rights reserved
TECHNICAL SERVICE MANUAL
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. The warranty period for Universal Seal series
pumps ONLY (Universal Seal models listed below) is
three (3) years from date of startup, provided that in
no event shall this warranty extend more than forty-two
(42) months from the date of shipment from Viking.
UNDER NO CIRCUMSTANCES SHALL VIKING BE
LIABLE UNDER THIS WARRANTY OR OTHERWISE
FOR SPECIAL, INCIDENTAL, INDIRECT,
CONSEQUENTIAL OR PUNITIVE DAMAGES OF ANY
KIND, INCLUDING, BUT NOT LIMITED TO, LOST
OR UNREALIZED SALES, REVENUES, PROFITS,
INCOME, COST SAVINGS OR BUSINESS, LOST OR
UNREALIZED CONTRACTS, LOSS OF GOODWILL,
DAMAGE TO REPUTATION, LOSS OF PROPERTY,
LOSS OF INFORMATION OR DATA, LOSS OF
PRODUCTION, DOWNTIME, OR INCREASED
COSTS, IN CONNECTION WITH ANY PRODUCT,
EVEN IF VIKING HAS BEEN ADVISED OR PLACED
ON NOTICE OF THE POSSIBILITY OF SUCH
DAMAGES AND NOTWITHSTANDING THE FAILURE
OF ANY ESSENTIAL PURPOSE OF ANY PRODUCT.
THIS WARRANTY IS AND SHALL BE VIKING’S SOLE
AND EXCLUSIVE WARRANTY AND SHALL BE IN
LIEU OF ALL OTHER WARRANTIES, EXPRESS
OR IMPLIED, INCLUDING, BUT NOT LIMITED
TO, ALL WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND
NON-INFRINGEMENT ALL OF WHICH OTHER
WARRANTIES ARE EXPRESSLY EXCLUDED.
See complete warranty at www.vikingpump.com.
DISASSEMBLY
ASSEMBLY
Follow the procedure outlined under disassembly.
If valve is removed for repairs, be sure to replace in the same
position. The valve cap should point towards the suction
port.
NOTE: Mark valve and head to be sure they are reassembled
in the same relative position.
1. Remove valve cap.
2. Measure and record the length of extension of the
adjusting screw. See “A” on Figure 11.
3. Loosen the lock nut and back out adjusting screw until
spring pressure is released.
4. Remove bonnet, spring guide, spring and poppet from
the valve body. Clean and inspect all parts for wear or
damage and replace as necessary.
PRESSURE ADJUSTMENT
IMPORTANT
In ordering parts for the pressure relief valve, always
give model number and serial number of the pump as
it appears on the nameplate and the name of the part
wanted. When ordering springs, be sure to give the pressure
settings desired.
If the pressure setting of the safety relief valve is to be
changed from that which the factory has set, the following
instructions should be carefully followed:
1. Remove the valve cap, which covers the adjusting screw,
and loosen the lock nut that locks the adjusting screw so
the pressure setting will not change during operation of
the pump.
2. A pressure gauge somewhere in the discharge line must
be used for actual adjustment operation.
3. The adjusting screw should be turned in for increasing
the pressure or turned out for decreasing the pressure.
4. With the discharge line closed at a point beyond the
pressure gauge, the gauge will show the maximum
pressure the valve will allow while the pump is in
operation.
GENERAL PURPOSE SPECIAL MOUNTED PUMPS
SERIES 75 AND 475
SIZES G - HL