HydraMaster CMX-20, Руководство пользователя

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Page 16 RX-20/CMX-20
HydraMaster Corporation
Repair
High Pressure Valve Assembly:
The valve assembly’s moving parts will
eventually wear out it time. Its repair or
replacement is a relatively simple
operation.
1. Remove the 440 male quick connect
(A) with a wrench.
2. Remove the five Allen head screws
(B) in the back plate on the handle
and lift the back panel off.
3. Disconnect the stainless steel hose
(C) from the bottom of the valve
assembly.
4. Remove the bolt (D) holding the trigger.
5. Remove the two bolts (E) holding the
valve assembly in the handle and pull
out.
6. The valve may now be rebuilt or re-
placed.
-
CAUTION
-
If the valve has been frozen, inspect it for
leakage before reinstalling the back plate.
Removal of Components
Felt Vacuum Seal Replacement:
A worn or unlubricated seal 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.
First, remove the vacuum head assembly
as previously described. Using a pocket
knife, carefully pry the seal up and lift it
out. If the seal appears worn or glazed
so that it will not lubricate well, try turning
it over. If that does not work, or if it is
damaged, replace it with a new one. We
recommend changing the felt seal after
10 hours of use. Replace it with a spare,
soaked seal. Press
the seal in place
and saturate it with
a quality 30 weight
SAE motor oil.
Always place the
flattened, used seal
in an oil bath to
rejuvenate.
NOTE: A tuna fish
can is the right size and shape and does
not require a large amount of oil.) This
seal and its condition
play an important part in the optimum
performance of your RX-20.
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