Hydrotech 5600 SXT Downflow Service Manual - Manual (Page 42)

Page 42
Service Instructions
Timer Replacement
To replace timer refer to Replacing Brine Valve, Injectors and Screen, steps 1–3.
Remove the control valve back cover. Remove the control valve front cover. Disconnect the meter dome sig-
nal wire from the front cover and feed it back through the control.
Remove screw and washer at drive yoke. Remove timer mounting screws. The entire timer assembly then lifts
off easily.
Put new timer on top of valve. Be sure drive pin on main gear engages slot in drive yoke.
Replace timer mounting screws. Replace screw and washer at drive yoke. Replace meter signal wire.
Return bypass or inlet valve to normal In Service position. Water pressure automatically builds in the condi-
tioner..
NOTE: Be sure to shut off any bypass line.
Replace the control valve back cover.
Follow Injectors/Screen Replacement, steps 9–12.
Piston Assembly Replacement
To replace piston assembly refer to Replacing Brine Valve, Injectors and Screen, steps 1–3.
Remove the control valve back cover. Remove the control valve front cover. Disconnect the meter dome sig-
nal wire from the front cover and feed it back through the control.
Remove screw and washer at drive yoke. Remove timer mounting screws. The entire timer assembly will now
lift off easily. Remove end plug retainer plate.
Pull upward on end of piston yoke until assembly is out of valve.
Inspect the inside of the valve to make sure that all spacers and seals are in place, and that there is no for-
eign matter that would interfere with the valve operation.
Take new piston assembly as furnished and push piston into valve by means of the end plug. Twist yoke care-
fully in a clockwise direction to properly align it with drive gear. Replace end plug retainer plate.
Place timer on top of valve. Be sure drive pin on main gear engages slot in drive yoke.
Replace timer mounting screws. Replace screw and washer at drive yoke.
Return bypass or inlet valve to normal In Service position. Water pressure automatically builds in the condi-
tioner..
NOTE: Be sure to shut off any bypass line.
Replace the control valve back cover.
Follow Injectors/Screen Replacement, steps 9–12.
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