Ransburg RMA Indirect A12869 - Manual (Page 87)

RMA-303 Indirect Charge - Maintenance
LN-9268-11.4 82
Troubleshooting Guide (Cont.)
General Problem Possible Causes Corrective Action
Fluid and/or Air
Leakage Between
the Robot and Bell
Manifold Plates 1. Atomizer mounting ring is
loose
2. O-ring is missing
3. O-ring is damaged
1. Tighten mounting ring.
2. Install O-ring.
3. Visually inspect for damage and replace.
Fluid Leakage In
Fluid Manifold or
Bell Plate 1. O-ring is damaged
2. Fluid tubing not properly in-
stalled or tightened.
1. Replace O-ring.
2. Inspect and retighten.
Fluid Leakage
Around Fluid
Valve 1. Damaged o-ring(s) on outer
diameter of valve body
2. Damaged or worn needle
seals inside valve assembly
1. Replace o-ring(s).
2. Replace valve assembly.
Turbine Cannot
Attain Desired
Speed 1. Excessive vibration
2. Low or no bearing air
3. Loss of fiber optic/no feed
back
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
e. Have manufacturing check bell cup balance
2. a. Check bearing air pressure (minimum 80
psi) (352 kPa)
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. Damaged fiber optic sensor, bad cable, too
many splices. Maximum three (3) slices per-
mitted.
Loss of Exterior/
Interior Cup Wash
or Lack of Flow 1. Bent of kinked supply tube
2. No fluid flow
3. Blocked fluid tip or external
nozzle.
4. Ferrules holding tubing over-
tightened.
1. Replace.
2. Check microvalve, check fluid supply source.
3. Clean parts, remove obstruction.
4. Replace tubing and ferrule assembly.