Page 6-1: Vacuum System
Boxxer H
2
O
Vacuum System
The vacuum pump in this machine is commonly referred to as a ‘positive displacement lobe’
type blower. The performance and life of this unit is greatly dependent on the care and proper
maintenance it receives.
Because of the close tolerances between the lobes and housing of the vacuum blower, solid
objects entering the inlet will damage the internal lobes, gears, bearings or drive system.
To prevent this, a stainless steel filter screen has been placed at the vacuum inlet inside the
vacuum recovery tank. This stainless steel screen is ‘finger’ tight and
should be removed
for cleaning weekly.
Caution should be used when machine is being run for test purposes and the vacuum
inlet on top of the machine is open.
To protect the vacuum blower from overloading and damaging itself, there is a vacuum relief
system installed on the vacuum tank. When the vacuum tank inlet is completely sealed off, a
maximum of 12 HG will be attained.
At the end of each day, an oil based lubricant should be sprayed into the blower lubrication
port before shutting down the machine. Lubricate the vacuum blower
daily
to prevent rust
deposits and moisture that will decrease the life of the vacuum blower.
Foam passing through the blower could lead to serious problems.
It is important to keep the vacuum tank foam free.
Read the vacuum blower manual carefully for proper oil change and grease application. The
maintenance log may differ slightly from the manual, but the truck-mounted carpet cleaning
machine application is very demanding of the vacuum blower and therefore it should be main-
tained more regularly.
