Flow 94i-D, Руководство пользователя

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Service notes
The following recommendations were provided by Flow
customers and technicians. Following this advice can
lead to lower repair costs, shorter repair times, and in-
creased service life.
•
Monitor water seepage from end cap weep holes. If
seepage is cold (same temperature as inlet water), it
is usually not necessary to change seals, but you
should schedule maintenance as soon as possible. If
seepage is hot, shut down the system and repair the
pump. Cracked parts and leakage from the check
valve
MUST
be repaired immediately.
•
All threaded high-pressure connections require an
even coating of Blue Lubricant (A-2185). Substitute
no other product.
•
All parts that contain high-pressure water (cylinder,
check valve housing, tubing) are susceptible to stress
fatigue accelerated by stress risers. Stress risers result
when scratches, nicks, or other surface disruptions
are present. Rework all such damage or replace the
component.
•
Life expectancy of high-pressure water seals and
other high-pressure parts is related to the stress on
the parts, and is a function of stroke rate, water pres-
sure, and inlet water temperature. Exceeding pump
ratings can lead to increased costs and downtime.
Torque specifications
Refer to the following table when specific torque re-
quirements are not listed in a service procedure.
CAUTION
Never torque mounting bolts and machine screws
beyond the manufacturer’s recommended limits.
The torque values for high-pressure water assemblies
and fittings are listed in U.S. Customary System
foot-pounds (ft-lb) and Systéme International (SI) New-
ton-meters (N-m).
High-pressure
gland nuts
U.S.
ft-lb
SI
N-m
¼ in.
15–25 20–34
3
8
-in.
35–45 47–60
9
16
-in.
60–75 80–100
42 | M-390
© Flow International Corporation
HYPERJET™ 94i-S AND 94i-D PUMPS