U.S. Products CMX-20 ROTARY EXTRACTOR - Manual (Page 49)

9-1: Repair and Replacement:
CMX-20
9 - Repair and Replacement
fELT VACUUM SEAL
The felt vacuum seal plays an important part in the optimum performance of your CMX-20.
If it is worn or unlubricated, it will not form a proper seal. lack of a proper seal will impair
the vacuuming capabilities of the unit and therefore leave behind more water in the carpet
than is desirable.
To replace the vacuum seal:
first, remove the vacuum head assembly 1.
as previously described.
Using a pocket knife or similar tool,
2.
carefully pry the seal up and lift it out. If
the seal appears worn or glazed so that
it will not lubricate well, turn it over (see
figure 9-1). If that does not work, or if it is
damaged, replace it with a new seal.
hydraMaster recommends changing the felt seal after 10 hours of use. Replace it
3.
with a seal that has been pre-soaked in a quality 30 weight SAE motor oil .
Press the seal in place and saturate it with the motor oil. If a flattened seal will be
4.
re-used, place the used seal in an oil bath to rejuvenate it.
For the seal’s oil bath, use a small receptacle the size and shape of a tuna fish
can.
fluffy, Usable Side
Compressed,
Non-usable Side
figure 9-1. Carefully Pry
Seal Up and Lift Out