TM 10-4610-242-13
4-18. WATER PRESSURE REGULATOR ASSEMBLY REPAIR - cont.
Disassemble Regulator Assembly Refer to figure 4-11
(14)
Loosen locknut (2)
(15)
Remove adjusting screw (1), locknut (2), and tag (3) from spring chamber (6)
(16)
Mark and record location, then remove two nuts (4) and screws (5)
(17)
Lift spring chamber (6) from body (18)
(18)
Remove spring button (7) and pressure spring (8) from top of pressure plate (9)
NOTES
·
Pressure plate is not secured to diaphragm
·
Diaphragm consists of four metal discs
(19)
Remove pressure plate (9) and diaphragm (10) from body (18). If pressure plate and diaphragm are stuck
together, gently pry them apart
(20)
Remove button (11) from body (18)
(21)
Position body (18) so that plug (12) is pointing up
NOTE
Plug is under light spring tension
(22)
Loosen plug (12) with wrench and unscrew from body (18) by hand
(23)
Remove gasket (13) from plug (12)
(24)
Remove strainer screen (16), piston (15), and spring (14) from body (18)
(25)
Remove cylinder (17) from body (18)
b.
Cleaning
(1)
Wash all components with clean water and detergent
(2)
Rinse components in clean water and dry with wiping rag
c.
Inspection
(1)
Inspect spring chamber (6) and body (18) for cracks, stripped threads, and corrosion
(2)
Inspect diaphragm (10) for cuts, tears, and holes
(3)
Inspect strainer screen (16) for tears and clogs
(4)
Inspect cylinder (17) and piston (15) for scoring, abrasion and corrosion
(5)
Inspect springs (8 and 14) for broken or stretched coils
4-46
