DISASSEMBLE AND INSPECT 145HS775 RAMP CONTROL VALVE
Be careful when removing shear
seals. Do not mar bearing surfaces
of valve body.
Insert wood or plastic dowel (72) into ports (73,
74, 75, and 76), and push four shear seals (77)
into valve body (5). Remove seals from inside
Remove packings (78) and backup rings (79)
from shear seals (77).
Inspect face (80) of each shear seal (77). Faces
of shear seals shall be free of nicks or scratches.
If a solenoid valve must be replaced,
go to step 45.
Remove seals from both solenoid valves (81)
Remove lockwire from locking ring (82) and
remove locking ring.
Do not pull hard on solenoid valve as
this could damage valve wiring.
Withdraw solenoid valve (81) from valve body
(5) until valve poppet (83) just clears body.
Do not pull hard on valve.
Remove T ring seals (84, 85, and 86).
Inspect seal seats for nicks or scratches.
None are permitted.