Maintenance, Ransburg, Preliminary procedures – Ransburg DR-1 Plastic Fluid Regulator LREG5001 User Manual
Page 12: Disassembly procedures, Tools required
MAINTENANCE
PRELIMINARY
PROCEDURES
Prior to removing the regulator for service or
repair, perform the following:
1. If possible, flush the regulator with suitable
cleaning solvent.
2. Turn the fluid and air "OFF" to the regulator
and disconnect the air and fluid lines from the
regulator.
3. Remove the regulator for service.
DISASSEMBLY
PROCEDURES
(Refer to Figure 1)
TOOLS REQUIRED
• 3/4" Open End Wrench
• Adjustable Wrench
• Screwdriver
• Repair Kit, 73913-00
1. Remove Item 4 (8-screws) holding the regu-
lator assembly together with the screwdriver.
4. Separate Item 6 (lower diaphragm retainer),
Item 10 (o-ring), item 8 (lower diaphragm), Item
17 (bleed spacer), Item 14 (center diaphragm)
and, Item 5 (upper diaphragm retainer) from the
spacer ring assembly.
5. With the 3/4" open end wrench, remove Item
13 (retaining plug), Item 12 (spring) and, Item 11
(regulating needle) from Item 3 (lower housing).
6. Remove Item 11 (regulating seat) and Item 10
(o-ring) from the lower housing assembly.
7. Clean all metal parts with suitable cleaning
solvent. DO NOT use solvent on the diaphragms
or o-rings.
2. Remove item 1 (cap), item 9 (diaphragm), spac-
er ring assembly and the lower housing assembly.
3. With screwdriver, remove Item 16 (screw) from
the spacer ring assembly.
Care MUST be taken while cleaning
the coated parts of the regulator to prevent
scratching.
C A U T I O N
!
When separating parts it may be neces-
sary to use a small screwdriver. Care should
be taken to NOT damage the plastic compo-
nents. Damage of these parts may cause
leakage.
C A U T I O N
!
Unless replacing the cap or spacer
ring, it is NOT necessary to remove the air
fittings.
The regulating needle and seat are a
matched set with matching serial num-
bers. Care must be taken to not use nee-
dles and seats with non-matching serial
numbers as fluid leakage may occur. If
either component needs to be replaced, a
new matched set must be used.
NOTE
DR-1 Plastic Fluid Regulator - Maintenance
Ransburg
9
LN-9221-00.7