Viking Pump TSM270: RL41507 Industrial Rotary Lobe - Manual (Page 4)

SECTION TSM 270 ISSUE F PAGE 4 OF 10
ROTATION
CAUTION:
Pumps are supplied without gear case oil. Be sure
to add the proper amount and type of lubricant be-
fore operating the pump. Do not overfill!
GEAR CASE - Use a grade of gear lube oil with EP (Extreme
Pressure) additive for the ambient temperature range.
EP150
0 - 32° F
EP220 32 – 85° F
EP320 above 85° F
Remove oil breather (Item #4) and add 3 Qt. of the specified
lubricant. Fill to center of sight glass (Item #6).
After 100 hours of operation, drain and refill with new lubricant
and clean off the magnet in the drain plug (Item #1).
Check lubricant level regularly and add lubricant as
necessary. Drain and refill with new lubricant every 12
months or 3000 hours of operation, whichever comes first
Pumps supplied from the factory are packed with heavy-
duty grease. Upon disassembling the bearing housing, the
bearings should be cleaned and repacked with heavy-duty
multi-purpose grease.
TAPERED ROLLER BEARINGS
CLEANING THE PUMP
Keep the pump as clean as possible to facilitate inspection
and repair work.
STORAGE
If a new pump is to be stored or not used for six months or
more, add 5 oz. of non-detergent SAE 30 weight oil in the
timing gear box. Viking suggests rotating the pump shaft
by hand one complete revolution every 30 days to circulate
the oil.
PRESSURE RELIEF VALVES
An integral pressure relief valve is not available on this
pump. Viking Industrial Rotary Lobe pumps are positive
displacement pumps and must be provided with some sort of
pressure protection. An inline pressure relief valve, a torque
limiting device or a rupture disk must be provided in the
pumping system.
DISCHARGE SUCTION
C W
FIGURE 2
BUSHINGS
The bushings used in this pump are lubricated with the
product and do not require any external source of lubrication
during operation.
MAINTENANCE
LUBRICATION
SPECIAL INFORMATION
FIGURE 2A
Refer to figures 2 and 2a. Viking RL pumps operate equally
well in either clockwise and counterclockwise rotation.
Rotation is determined by viewing the pump from the shaft
end. There are two tapped holes in each port to vent the seal
chambers. 1/8” pipe plugs are installed on the discharge side
of the pump and the holes on the suction side are left open.
Standard factory build is clockwise rotation. Pipe plugs must
be switched to the opposite port if rotation is reversed.
Series RL pumps are designed for long, trouble-free service
life under a variety of application conditions with a minimum
of maintenance. The following points will help provide long
service life.
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
measures may result in serious injury or death.