Ransburg RMA Dual Purge Direct A12300 - Manual (Page 85)

RMA-303 Dual Purge/Direct Charge - Maintenance
80
General Problem Possible Causes Corrective Action
Fluid and/or Air
Leakage Between
the Robot & Bell
Manifold
Plates
Fluid Leakage In
Fluid Manifold or
Bell Plate
Fluid Leakage
Around Fluid Valve
Turbine Cannot
Attain Desired
Speed
1. Atomizer mounting nut is
loose
2. O-ring is missing
3. O-ring is damaged
1. O-ring is damaged
2. Outer diameter of tubing
coil is damaged
1. Damaged o-ring(s) on
outer diameter of valve
body.
2. Damaged or worn needle
seals inside valve assembly
1. Excessive vibration
2. Low or no bearing air
3. Turbine supply insufficient
4. Flooded turbine with paint
or solvent.
1. Tighten mounting ring.
2. Install o-ring.
3. Visually inspect for damage and replace.
1. Replace o-ring.
2. Inspect tubing coil for scratches and replace
if damaged.
1. Replace o-ring(s).
2. Replace valve assembly.
1. a. Check bell cup for damage.
b. Check bell cup for excessive paint buildup.
c. Bell cup loose - tighten to proper torque.
d. Check cup and shaft tapers for cleanliness.
2. a. Check bearing air pressure (minimum 80 psi).
b. Check filters for contamination.
c. Check for bent or damaged bearing air line.
d. Poor turbine air pressure - plant air.
e. Damaged speed control cards.
3 Increase turbine air supply tubing.
4. a. Ensure turbine speed and paint flow are
interlocked.
b. Add regulators down-stream of pumps for
paint and solvent.
Troubleshooting Guide (Cont.)
Ransburg
LN-9263-08.5