Flowserve HWX Worthington - Manual (Page 17)

HWX USER INSTRUCTIONS ENGLISH - 07/14
Page 17 of 40
4.7 Final shaft alignment check
After connecting piping to the pump, rotate the shaft
several times by hand to ensure there is no seizure
and all parts are free.
Recheck the coupling alignment, as previously
described, to ensure no pipe strain. If pipe strain
exists, correct piping.
5.0 COMMISSIONING START-UP,
OPERATION AND SHUTDOWN
These operations must be
carried out by fully qualified personnel.
5.1 Precommissioning procedure
The following steps should be followed at initial start
up and after the equipment has been overhauled:
a) Prior to installing the pump, flush the suction side
of the system to remove all deposit (slag, bolts
etc).
b) Ensure the pump and piping is clean. Before
putting the pump into operation, the piping should
be thoroughly back flushed to remove any foreign
matter which may have accumulated during
installation. Take all possible care not to
contaminate your system.
c) Fill the bearing housing with the appropriate oil to
the correct level (if applicable). Bearing must
receive a small amount of oil prior to starting to
ensure adequate lubrication at start up. (Refer to
Section 5.2).
d) Turn pump rotor by hand or with a strap wrench
to make sure it turns smoothly.
e) Assure that correct seal piping has been installed
and has not been damaged.
f) Prior to coupling installation, bump start motor to
check for correct rotation. If rotation is not correct
refer to motor manual for appropriate connections
to change rotation (Shut down all power prior to
change).
g) Ensure coupling is correctly aligned and
lubricated. (Refer to Section 4.4).
h) Ensure coupling guard is correctly installed.
The unit must not be operated unless
coupling guard is securely and completely
bolted in place. Failure to observe the
warning could result in injury to operating
personnel.
Check torque of all bolting and the plugs for
tightness.
5.2 Pump Lubricants
5.2.1 Lubrication
The bearing housing shall be filled with proper
lubricating oil prior to start up. If the pump will be
started after a longer storage period, the bearing
housing should be first flushed and cleaned with
gasoline. It is not necessary to remove the
preservation oil as this will mix up thoroughly with the
lubrication oil.
Lubrication is provided by the pumping effect of the
rotating ball bearings. Maintaining the correct oil level
(middle of the oil sight glass) ensures that the lower
ball bearing is covered with oil.
For recommended lubricating oils refer to the
lubrication table 5.2.6
5.2.2 Oil change
After first start up, the oil shall be changed after 200
service hours.
Every further oil change shall take place after about
2000 service hours or at least every 6 month.
To change the oil, use the following procedure:
a) Remove the reservoir (for some type of oilers you
must loose a fixing screw or lock nut, refer to
section 5.2.4 Oil level).
b) Open the oil drain on the bearing housing to
remove the oil.
c) Close the oil drain and fill in Oil through the oiler
until the oil level reaches the bottom of the sight
glass.
d) Fill the reservoir and put it quickly to the body of the
oiler. Observe the level in the reservoir. It will
decrease until the required oil level is reached
(middle of the sight glass). Ensure that enough oil
remains in the reservoir.
e) If necessary, the oil level can be adjusted by
refering to section 5.2.4 Oil level.
5.2.3 Oil level
The correct oil level is in the middle of the oil sight glass
and shall be checked when pump is not in operation.
Periodically check if the lubricating oil is mixed with any
condensed water. Careful opening of the oil drain
during a stop of the pump will show any water.
During operation the level will decrease
due to circulation of the oil through the bearings.
A too high oil level will result in higher bearing
temperatures and therefore poorer lubrication.
5.2.3.1 Adjusting of TRICO Constant Level Oiler
If the pump is fitted with a Constant Level Oiler type
„TRICO“, the correct oil level has to be checked after
fitting the pump!