Bradley S19-2150 Manual De Instalación página 9

Installation
Troubleshooting: Piston Disassembly and Cleaning
WARNING To prevent injuries, use proper protective
equipment for eyes and skin when using a
propane torch.
Remove the valve's top cap and pull out the
A
thermostat. You may use a needle-nose pliers
to remove the thermostat from the valve body if
desired.
Insert a 7/16" dia. rod into the valve until it touches
B
the top of the pushrod that is attached to the
piston Mark the length of the rod inside the valve.
Push the rod until the piston stops and mark the
new length.
If the rod travels less than1/2", the piston is not
moving freely within the liner and they must be
cleaned:
1. Remove the control section assembly, top
cap and thermostat.
C
2. Unthread the liner from the cap (it is glued
together; the O-rings must be removed and
heat should be applied to melt the glue and
loosen the liner).
3. Clean the piston and liner with any cleaner
suitable for brass and stainless steel (400-
grit sandpaper may be used to polish and
hone the piston and liner).
Push the mechanism up and down several
D
times to make sure the piston moves smoothly
and consistently. If it is not consistent, repeat
Procedure C until it moves freely, or replace.
Contact your Bradley representative and ask for
Piston/Liner Kit (part number S65-489).
Bradley • 215-1809 Rev. E: ECO 20-09-011
EFX 20/S19-2150
Top Cap
Thermostat
The second mark
should be 1/2"
7/16"
higher on the rod
Rod
than the first mark.
Piston Overheat
8/7/2020
Chamber
9