Ransburg RMA Indirect A12869 - Manual (Page 76)

RMA-303 Indirect Charge - Maintenance
71 LN-9268-11.4
Figure 43: Weep Port Locations
Figure 44: Valve Removal
Figure 45: Seat Removal
N O T E
N O T E
Valve and Seat Removal/ Installation (Cup
Wash Manifold)
Inspect weep ports for contamination or other
visible leakage around valves. Follow instruc-
tions as follows for damage to valves, seats,
or performing preventative maintenance.
Using the valve removal tool (A11922-00),
engage the four (4) pins on the tool to the cor-
responding four (4) hole pattern in the top of
the valve. Using a 1/2-inch (13mm) socket,
end wrench, or adjustable wrench, remove the
valve by turning counter-clockwise.
Using the seat removal tool (A10756-00), in-
sert the smaller hex end into the block to en-
gage the seat hex. Using a 3/8-inch (10mm)
socket, end wrench, or adjustable wrench,
remove the seat by turning counter-clockwise.
Valve and Seat Inspection
Inspect the valves and seats for any build-up
or leakage of materials. Valves should be
cleaned with an appropriate cleaning solvent
to remove the material on it.
>A seat should not need to be replaced unless
there are indications of valve leakage in oper-
ation.
Replacement
Lubricate the O-ring on the seat assembly us-
ing a suitable lubricant, then by hand, using
the seat removal tool (A10766-00), carefully
start the seat assembly into the pocket of the
manifold.
>Carefully start the seat assembly into the
pocket. It may be easily cross threaded.