4 Operation
4.1 Preparation for Start-up
4.2 Checking rotation
CAUTION:
Serious damage may result if pump is run in the wrong rotation.
1.
Unlock driver power.
2.
Make sure everyone is clear. Jog driver just long enough to determine direction of rotation. Rotation
must correspond to arrow on bearing housing.
3.
Correct if necessary.
CAUTION:
Operation of the unit without proper lubrication will cause bearing failure, and pump seizure.
4.2.1 Check impeller clearance
Refer to
5 Preventive Maintenance on page 33
for details.
4.2.2 Shaft sealing
Cartridge Mechanical Seals:
1.
Slide the cartridge seal onto the shaft or sleeve until it contacts the inboard labyrinth oil seal.
2.
Assemble the seal chamber per the instructions in
6 Disassembly & reassembly on page 38
3.
Slide the cartridge seal into the seal chamber and secure using the four studs and nuts.
4.
Continue the pump reassembly per the instructions in
6 Disassembly & reassembly on page 38
.
5.
Tighten the set screws in the seal locking ring to secure the seal to the shaft.
6.
Remove the centering clips from the seal.
Conventional Inside Component Mechanical Seal:
1.
Assemble the seal chamber per the instructions in
6 Disassembly & reassembly on page 38
2.
Apply bluing to the shaft/sleeve at the face of the seal chamber.
3.
Continue the complete reassembly of the pump, less the mechanical seal.
4.
Set the impeller clearance per the instructions in
5 Preventive Maintenance on page 33
.
5.
Scribe a line on the blued shaft/sleeve at the face of the seal chamber.
6.
Remove the casing, impeller, and seal chamber per the instructions in
7.
Slide the gland (with the stationary seat and gland gasket installed) onto the shaft until it contacts
the inboard labyrinth oil seal.
Table 3: Impeller Clearances
Cold Temcerature Clearances for Various Service Temceratures, inches(mm)
4 Operation
3196CC Installation, Operation and Maintenance Instructions
25
