Maintenance
7.
Maintenance
Before proceeding, follow the Pressure Relief
Procedure outlined previously in this manual.
Additionally, follow all other warnings to reduce the
risk of an injection injury, injury from moving parts
or electric shock. Always unplug the sprayer before
servicing!
7.1
Removing and Cleaning the Inlet Valves
1. Perform the Pressure Relief Procedure, turn of and unplug the
unit.
2. Remove the inlet valve assembly using a 27 millimeter socket
or box end wrench.
3. Test movement of the valve by pushing on it from the open
end of the valve housing with a screwdriver or the eraser end
it does not move, it should be cleaned or replaced.
The inlet valve must be oiled after every job. This
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will reduce or eliminate priming problems the next
time the sprayer is used.
4. Thoroughly clean the valve assembly with water or the
5. If the valve has been properly cleaned and water drips out of
the bottom, the valve is worn and needs to be replaced. A
properly seated valve illed with water and held vertically will
not drip.
6. Install a new or cleaned valve in the pump block and then ill
the valve with light oil or solvent.
GB
7.2
Removing and Cleaning the Outlet Valve
It may be necessary to remove and clean the outlet valve or to
replace parts inside the valve worn out through normal use.
1. Remove the outlet valve body with a wrench.
the valve using a wire hook or tweezers. Replace the spring if
it is broken or worn.
This spring is manufactured to a very speciic
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tension. Do not put in an unauthorized substitute.
See the paint pump assembly parts diagram for the
proper replacement part number.
4. Clean all parts thoroughly. If the ball or seat show any sign of
wear or damage, replace them with new parts. This carbide
ball must seal tightly against its seat for the valve to function
properly.
5. Cover all parts with a thin coat of light oil before reassembling.
You will need to align the ridge on the seat with the
i
groove in the pump housing when reassembling.
that the tongue on the cap its inside the spring.
8. Tighten the valve body securely with an adjustable wrench.
Do not over-tighten.
7.3
Cleaning the Hopper Screen
The screen at the bottom of the paint hopper may need cleaning
periodically. Check it every time you add paint. Remove the screen
by pulling it out of the hopper with a pliers. Clean the screen with
water or solvent and a soft-bristle brush, if necessary.
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