CHAPTER 4
Service
Servicing the high-pressure pump
The step-by-step instructions and illustrations in the ser
-
vice procedures will help you service the equipment.
There are required service procedures that must be done
at specific intervals; these and other procedures for re-
placing parts are located in this chapter.
Service tips & notes
Review the safety precautions in Chapter 2 and the
maintenance tips in this chapter before starting any
work. If you have questions about any service, contact
Flow Technical Service.
•
Inspect the equipment every day before operating it.
•
Read and thoroughly understand each service proce
-
dure before starting the work.
•
Maintain records of service performed. This will pro
-
vide valuable information to help you stock spare
parts and avoid suprise repairs.
•
Do not use a substitute for the fluids, sealants, and
lubricants recommended by FLOW. All threaded
high-pressure connections require an even coating of
Blue Lubricant (A-2185).
•
Routinely check for loose bolts or wire connections.
•
Handle critical parts with care and avoid scratching
or denting the high-pressure water system
components.
•
Protect all machined and lapped mating surfaces
against nicks, scratches, and burrs.
•
Monitor water seepage from end cap weep holes.
•
All parts that contain high-pressure water (cylinder,
check valve housing, tubing) are susceptible to stress
fatigue accelerated by nicks, scratches, or other sur
-
face disruptions. Replace the damaged components.
•
Life expectancy of high-pressure water seals and
other high-pressure parts is related to stress on the
parts, and is a function of stroke rate, water pressure,
and inlet water temperature. Exceeding pump rat-
ings can lead to increased costs and downtime.
Clean environment
•
Keeping components clean is critical. Make every ef-
fort to find a clean area to service the compo-
nents—do not tear down parts in the same area
where cleaning is taking place. Airborne dirt and
abrasive have serious detrimental effects on part life.
•
Carefully clean and blow compressed air on parts
being reassembled. Do not use paper towels. Do not
create airborne dust.
•
Clean all parts with fresh, clean solvent that does not
leave a residue, such as Citra-safe® or isopropyl al
-
cohol. FLOW recommends that you set up a dedi
-
cated solvent tank for these critical parts.
Contamination from other industrial parts will seri
-
ously reduce part life.
© Flow International Corporation M-416 | 41
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