Milton Roy MILROYAL D, Инструкция по эксплуатации

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14
Instruction Manual
5.3 LUBRICATION
Once each day lubricate the packing lightly with
lubricant recommended on pump data face sheet
(front of manual). A grease fitting located on the
liquid end is provided for this purpose.
5.4 CHECK VALVE MAINTENANCE
The ball check cartridge assemblies, each with
double ball checks are designed to give long,
trouble- free service. If the check valves do become
fouled, cleaning with a hot detergent solution
will usually remove all but the most stubborn
contaminants. Prepare a hot detergent solution and
pump freely through the pump for 10 to 15 minutes.
Flush with hot water and return to normal service.
If flushing does not prove adequate, remove and
disassemble cartridges to inspect for chemical
damage. To remove balls and seats from cartridge,
perform the following:
1. Using a 5/16” (7.93 mm) diameter pin, push out
No. 383 seats and No. 386 ring insert from small
end of No. 381 body.
2. Using a 1/16” (1.59 mm) diameter pin, push out
No. 385 limit pin from seat.
3. Remove No. 384 ball check and inspect ball
and seat for marks, pits and scratches. The
important portion of the seat is where ball
contacts edge of the hole. This area should
be a smooth bright band when viewed under
10X magnification. Any imperfections in either
ball or seat is cause for replacement.
4. It is recommended that No. 382 O-ring and
No. 386 ring insert be replaced after
disassembly.
5. After cleaning all parts, reassemble as shown in
figure 5 . Make sure O-ring end of seat is placed
into body first, and that the entire assemblies
are screwed into liquid end with arrows on body
pointing upward.
ONE OF THE FOLLOWING WILL
RESULT FROM INCORRECT
BALL CHECK CARTRIDGE ASSEMBLY: (A) IMMEDIATE SEVERE
DAMAGE TO PUMP MECHANISM, (B) NO PUMPING, (C)
REVERSE PUMPING ACTION (FROM DISCHARGE LINE INTO
SUCTION LINE).
6. Threads on cartridges should be prepared with
sparing amount of pipe dope or, preferably,
with a thread sealant tape to prevent air or fluid
leakage past threads.
5.5 PACKING ADJUSTMENT, START- UP
AND REPLACEMENT
New packing, installed and shipped from the factory
in a complete pump or liquid end has been set
and run-in during Production Quality Assurance
and requires no further break-in prior to full load
start- up.
If, during operation, leakage does occur, gland
cap no. 403 should be tightened a little at a time
(1/6 turn or less) until leakage is minimized or
stopped. Wait at least five minutes between
adjustments to allow packing to resettle. If it is
possible to tolerate a little leakage at Gland Cap,
the leaking liquid will help to lubricate and cool
packing and plunger, greatly extending the life of
both.
SECTION 5 - MAINTENANCE INSTRUCTIONS-LIQUID END 7/16” AND 5/8” DIAMETER PLUNGERS