Ransburg RMA Indirect A12869 - Manual (Page 77)

RMA-303 Indirect Charge - Maintenance
LN-9268-11.4 72
Figure 46: Valve Seat Torque
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W A R N I N G
Figure 47: Valve Torque
Hand tighten the seat in place. Using a torque
wrench with a 3/8-inch (10mm) socket, torque
the valve seats to 15-20 lbs.- in. (1.7-2.3 Nm).
> Always use a torque wrench to torque the
seats in place. Over-torqueing the seats may
cause permanent irreparable damage to the
manifold.
Lubricate the valve O-rings with a suitable O-
ring lubricant. By hand, thread the valve into
the pocket in a clockwise direction. Tighten
using a 1/2-inch (13mm) socket and torque to
15-20 lbs.- in. (1.7-2.3 Nm) after valve is
down.
Valve and Seat Removal
(Atomizer Body End)
(Figures 48 and 49)
Removal
Using the valve seat removal tool (A11922-
00), engage the four (4) pins on the tool to the
corresponding four (4) hole pattern in the top
of the valve. Tighten knurled thumb screw and
tool to engage 1-2 threads on the valve cap.
This will aid in pulling the valve from its bore
once it is loose.
Using a 1/2-inch (13mm) socket, remove the
valve by turning clockwise until fully unthread-
ed. Pull the valve assembly from the pocket.
Pull valve straight out.
Using seat removal tool (A10766-00), insert
the smaller hex end into the valve cavity to en-
gage the seat hex. Using a 3/8-inch (10mm)
socket, remove the seat by turning counter-
clockwise.
Replacement
Clean seat and valve pocket thoroughly. Lu-
bricate valve pocket, O-rings on seat and
valve assemblies with A11545-00 lubricant.
Carefully start the seat assembly into the valve
pocket. Hand tighten in place. Using a torque
wrench with a 3/8-inch (10mm) socket, torque
the valve seat to 15-20 lbs.- in. (1.73-2.3 Nm).
Next place the valve onto the four prongs of
the valve removal tool and insert into the valve
pocket. Tighten by hand as far as possible.
Tighten fully using a torque wrench with a 1/2-
inch (13mm) socket and torque to 15-20 lbs.-
in. (1.7-2.3 Nm) after valve is down.