Ransburg DR-1 Fluid Regulator 74151 - Manual (Page 17)

DR-1 Fluid Regulator - Maintenance
14
TROUBLESHOOTING GUIDE
General Problem Cause Solution
No Fluid Flow
Fluid Will Not Shut Off
Paint Leakage
Air Leakage
Low Fluid Flow
1. Plugged fluid inlet
2. Item 11 (regulating needle
and seat) stuck
3. No pilot air
4. Ruptured Item 9 (upper
diaphragm)
5. Ruptured Item 14 (center
diaphragm)
1. Dirt in Item 11 (regulating
needle/seat)
2. Pilot air not shut off
3. Broken Item 12 (spring)
1. Item 4 (screws) loose
2. Ruptured Item 8 (lower
diaphragm)
3. Item 13 (retaining plug)
loose
4. Loose fluid fitting
5. Item 10 (o-ring) pinched
1. Loose air fitting
2. Item 4 (screws) loose
3. Ruptured Item 9 (upper
diaphragm)
4. Ruptured Item 14 (center
diaphragm)
1. Incorrect regulator ratio
2. Fluid supply pressure to low.
3. Air pilot to low.
1. Flush clean.
2. Remove and clean or replace.
3. Check air pilot signal.
4. Rebuild regulator.
5. Rebuild regulator.
1. Remove and clean or replace. (Must be
replaced as a set, see "Maintenance"
section.)
2. Check signal air supply.
3. Replace item 12 (spring).
1. Tighten per "Assembly Procedure" in the
"Maintenance" section.
2. Rebuild regulator.
3. Tighten, torque to 25-30 lbs • ft (see
"Maintenance" section).
4. Tighten.
5. Replace Item 10 (o-ring).
1. Tighten.
2. Tighten.
3. Rebuild regulator.
4. Rebuild regulator.
1. Refer to "Operations" section for correct
sizing information.
2. Increase fluid supply pressure. (Do not
exceed 100 psig (see "Specifications" in the
"Introduction" section).
3. Check air pilot signal.
(Continued on next page)
LN-9223-00.10