Flowserve APKD - Manual (Page 36)

APKD DOUBLE-CASE, DOUBLE-SUCTION USER INSTRUCTIONS 26999903 07-13
Page 36 of 55 flowserve.com
on the starting device with the words:
"Machine under repair: do not start".
With electric drive equipment, lock the main switch
open and withdraw any fuses. Put a warning board
on the fuse box or main switch with the words:
"Machine under repair: do not connect".
Never clean equipment with inflammable solvents
or carbon tetrachloride. Protect yourself against
toxic fumes when using cleaning agents.
6.2 Maintenance schedule
It is recommended that a maintenance plan
and schedule is adopted, in line with these User
Instructions, to include the following:
a) Any auxiliary systems installed must be
monitored, if necessary, to ensure they function
correctly.
b) Gland packings must be adjusted correctly to
give visible leakage and concentric alignment
of the gland follower to prevent excessive
temperature of the packing or follower.
c) Check for any leaks from gaskets and seals.
The correct functioning of the shaft seal must
be checked regularly.
d) Check bearing lubricant level, and if the hours
run show a lubricant change is required.
e) Check that the duty condition is in the safe
operating range for the pump.
f) Check vibration, noise level and surface
temperature at the bearings to confirm
satisfactory operation.
g) Check dirt and dust is removed from areas
around close clearances, bearing housings and
motors.
h) Check coupling alignment and re-align if
necessary.
Our specialist service personnel can help with
preventative maintenance records and provide
condition monitoring for temperature and vibration
to identify the onset of potential problems.
If any problems are found the following sequence
of actions should take place:
a) Refer to section 8,
Faults; causes and
remedies, for fault diagnosis.
b) Ensure equipment complies with the
recommendations in this manual.
c) Contact Flowserve if the problem persists.
6.2.1 Routine Inspection (daily/weekly)
The following checks should be
made and the appropriate action taken to remedy
any deviations.
a) Check operating behavior; ensure noise,
vibration and bearing temperatures are normal.
b) Check that there are no abnormal fluid or
lubricant leaks (static and dynamic seals) and
that any sealant systems (if fitted) are full and
operating normally.
c) Check that shaft seal leaks are within
acceptable limits.
d) Check the level and condition of lubrication oil.
On grease lubricated pumps, check running
hours since last recharge of grease or
complete grease change.
e) Check any auxiliary supplies eg.
heating/cooling (if fitted) are operating
correctly.
f) Refer to the manuals of any associated
equipment if routine checks needed.
6.2.2 Periodic Inspection (every 6 Month)
a) Check foundation bolts for
security of attachment and corrosion.
b) Check pump operation hours to determine if
bearing lubricant shall be changed.
c) The coupling should be checked for correct
alignment and worn driving elements.

Refer to the manuals of any associated
equipment for periodic checks needed.
6.2.3 Re-lubrication
6.2.3.1 Pump
lubrication
In general, VTPs that are product lubricated will not
require further periodic lubrication. Stuffing box
and mechanical seal needs flow of flush. Enclosed
line shaft pumps have to be provided with the
required oil quantity for an oil lubed system and the
injection lube flow at the required pressure for
injection lubed systems.
6.2.3.2 Driver
lubrication

Refer to driver manufacturer’s User
Instructions supplied with the pump.
6.2.4 Impeller
re-adjustment
Ordinarily, impellers will not require re-adjustment if
properly set at initial installation.