Ransburg DR-1 Fluid Regulator 74151 - Manual (Page 12)

DR-1 Fluid Regulator - Maintenance
9
MAINTENANCE
PRELIMINARY PROCEDURES
Prior to removing the regulator for service or repair,
perform the following:
1. If possible, flush the regulator with suitable clean-
ing solvent.
2. Turn the fluid and air "OFF" to the regulator and
disconnect the air and fluid lines from the regula-
tor.
3. Remove the regulator for service.
DISASSEMBLY PROCEDURES
(Refer to Figure 1)
TOOLS REQUIRED
• 3/8", 7/16", 7/8", and 15/16" Open-End
Wrenches
• 5/32" Allen Head Wrench
• Adjustable Wrench
• Screwdriver
• Repair Kit, 73913-00 or 73913-01
1. Remove Item 4 (8 screws) holding the regulator
assembly together with the 5/32" Allen wrench.
2. Remove Item 1 (cap), Item 9 (upper diaphragm),
Item 2 (spacer ring), and Item 3 (lower housing as-
sembly). This will leave the diaphragm assembly
Item 5 (upper diaphragm retainer), Item 14 (center
diaphragm), Item 7 (center diaphragm retainer), Item
17 (bleed spacer), Item 8 (lower diaphragm), Item 10
(o-ring), and Item 6 (lower diaphragm retainer) held
together by Item 16 (screw).
> When separating parts it may be neces-
sary to use a small screwdriver. Care should be
taken to NOT damage the components. Dam-
age of these parts may cause leakage.
C A U T I O N
!
> Unless replacing Item 1 (cap) and/or
Item 2 (spacer ring), it is NOT necessary to
remove Item 18 (air fitting) and Item 15 (gas-
ket).
> Item 11 (regulating needle and seat) is a
matching set with matching serial numbers.
Care must be taken to not use needles and
seats with non-matching serial numbers as
fluid leakage may occur. If either compo-
nent needs to be replaced, a new matched
set must be used.
NOTE
LN-9223-00.10