Viking Pump TSM270.2: RL 16 and 25 High Pressure - Manual (Page 5)

SECTION TSM 270.2 ISSUE A PAGE 4 OF 12 SECTION TSM 270.2 ISSUE A PAGE 5 OF 12
The Industrial Lobe series pump can be supplied with a
variety of mechanical sealing configurations and materials.
The cartridge mechanical seal is considered standard
construction.
General installation and replacement instructions for
the optional lipseal and packing are provided. It is also
recommended to review the seal manufacture’s instructions
for a specific seal.
Optional Cartridge Lipseal Seal Replacement
NOTE: Good radial alignment is required for proper
operation of the seals. This is accomplished by the use of
centering tabs provided with each seal. Turn the tabs inward
when installing or removing the seal. Turn them outward for
normal operation of the pump.
MECHANICAL SEAL INFORMATION
DANGER!
Before starting pump, be sure all drive equipment
guards are in place.
Failure to properly mount guards may result in seri-
ous injury or death.
DANGER !
Before opening any Viking pump liquid chamber
(pumping chamber, reservoir, etc.) be sure:
1. That any pressure in the chamber has been
completely vented through the suction or
discharge lines or other appropriate openings or
connections.
2. That the driving means (motor, turbine, engine, etc.)
has been “locked out” or made non-operational so
that it cannot be started while work is being done
on pump.
3. That you know what liquid the pump has been
handling and the precautions necessary to
safely handle the liquid. Obtain a material safety
data sheet (MSDS) for the liquid to be sure these
precautions are understood.
4. That the timing gearbox to cool before handling
the pump. The oil will become very hot during
normal operation. Allow the timing gearbox oil.
Failure to follow above listed precautionary mea-
sures may result in serious injury or death.
FIGURE 4
TRIPLE LIP CARTRIDGE SEAL
Replacement of the cartridge lipseal seal requires
disassembly of the pump.
REMOVAL
NOTE: The loosening of the seal setscrews and gland
capscrews should always be the first step whenever working
on the pump.
1. Remove the coverplate capscrew and coverplates.
2. Turn the centering tabs inward. Unlock the setscrews
securing the sleeve to the shaft.
3. Follow steps 3 through 10 of PUMP DISASSEMBLY on
page 7.
4. Remove the four capscrews and washers that hold each
seal in place and remove the seals.
INSTALLATION
NOTE: The tightening of the capscrews and seal setscrews
should be the final step in pump assembly.
1. Follow steps 1 through 3 of ASSEMBLY on page 8.
2. Lubricate the ID of the seals.
3. Install the seals on the shafts with the flats toward each
other.
4. Secure the seal gland loosely to the casing with washers
and capscrews.
5.Follow the remaining steps 6 through 13 of ASSEMBLY.
6. Turn the centering tabs outward.
Replacement of the cartridge mechanical seal requires
disassembly of the pump. Follow the pump disassembly and
assembly instructions (See pages 7 through 9) for standard
mechanical seal replacement.
Cartridge Mechanical Seal Replacement