Instruction Handbook KL
Chapter 7
BA KL V11 en
10/2014
page 7-2
7.4
Maintenance of rock catchers for bio-mix pumps
The hopper of bio-mix-pumps (heavy duty), has been constructed that into the hutch as well the
tunnel can settle stones or other foreign materials which must not into the pump. The stones or other
foreign materials can pick up by vents in the hutch and the tunnel. Drain the pump if possible daily
and pick up the foreign material from hutch and tunnel to avoid damages at the pump aggregate.
Warning!
Rotating parts. Risk of trapping and crashing
Possible dangerous situation: Severe or fatal injuries!
Do not work on rotating pumps!
Clean and maintain the pump only it stands still!
Switch the plant into a voltage-free condition and secure against any unauthorized and
accidental restart!
7.5
Joint Maintenance
The joints of WANGEN helical rotor pumps do not need any maintenance.
The filled cardan shaft joints are provided in the factory with a high efficiency gear lubricant oil
(viscosity class SAE 90) or lubricant for foodstuffs industry. (Food industry oil) If a change of the
sleeve is necessary, the lubricant will have to be exchanged as well. A special filling is possible.
Please see
table 1
for the correct amount of lubrication needed.
7.6
Maintenance of shaft seals
7.6.1
Face Seal (LWD Cartridge)
WANGEN eccentric screw pumps complete with drive unit seal (
LWD
) are provided in the factory
with quench fluid. In the event of a repair or a replacement of the drive unit seal become necessary,
this filling needs to be replaced.
To this end, the sealing case will be filled up to a 2/3 level (check by actual level by means of
level inspection glass).
The position of the breather plug 1108 defines the maximum level in the LWD cartridge.
Check the level of the face seal at least monthly by means of the level inspection gauge. If
necessary, replenish the existing quench fluid.
The drive unit seal (LWD) are provided in the factory with a high efficiently gear lubricant oil
(viscosity class SAE 90) or lubricant for foodstuffs industry. (Food industry oil) A special filling is
possible. The lubricant quantities required for this purpose will be as listed in the
table 2
.
