Ransburg RMA Dual Purge Direct A12868 - Manual (Page 75)

RMA-303 Dual Purge Direct Charge - Maintenance
LN-9267-11.3 72
Inner/Outer Shaping Air Manifold, Solvent
Tube Removal/Replacement
Interior/Exterior Shaping Air Manifold for
55mm Bell Cup
Turbine Removal
Replacement
Apply a light coating of O-ring lubricant to all
the O-rings and the threads of the turbine and
turbine retaining ring prior to assembly. Push
the turbine down into the cavity in the atomiz-
Shaping Air Manifold Reassembly
(Lightly lubricate all O-rings prior to assem-
bling.) Carefully install the inner shaping air
ring onto the turbine threads. Tighten in a
clockwise direction until it seats against the
turbine. Install set screw and tighten until it
stops on the turbine body, then tighten to 5
lbs•in (0.564 Nm) torque to prevent shaping air
ring/manifold from rotating. Do not over-
tighten! If replacing the solvent tube, install
longer fitting into the atomizer body first and
tighten with a 3/16” end-wrench. Install fitting
into atomizer body until ferrule is seated to a
stop. Test by pulling/pushing tube, tighten
until no movement then 1/8 turn more. Be-
fore installing the other end into the inner
shaping air ring, check the position of the 1/4-
20 threaded hole. If it is less than 180° from
the fitting installed in the atomizer body, you
must install a loop (as shown in “Interior/
Exterior Shaping Air Manifold for 55mm Bell
Cup” figure) to prevent tube from becoming
pinched when outer shaping air ring is in-
stalled. Do not kink the tube when installing
loop (see “Interior/Exterior Shaping Air Mani-
fold for 55mm Bell Cup” figure). Turbine Re-
moval / Replacement
Removal
Remove the turbine retaining ring by using
the strap wrench (A12088-00), turning the
turbine retaining ring in a counter-clockwise
direction. Pull the turbine out while rocking it
from side to side.