Hellenbrand WM1-16M Owner's Manual page 11

D. TO REPLACE PISTON ASSEMBLY
* 1. Pull cable out of meter cover. Remove the control valve
cover.
2. 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.
3. Pull upward on end of piston yoke until assembly is
out of valve.
4. Inspect the inside of the valve to make sure that all
spacers and seals are in place, and that there is no
foreign matter that would interfere with the valve op-
eration.
5. 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.
6. Put new timer on top of valve. Be sure drive pin on
main gear engages slot in drive yoke (rotate control
knob if necessary.)
7. Replace timer mounting screws. Replace screw and
washer at drive yoke.
8. Return bypass or inlet valving to normal service position.
Water pressure should be applied to the conditioner
and any bypass line shut off.
9. Plug electrical cord into outlet.
10. Set time of day. Cycle the control valve manually to
assure proper function. Make sure the control valve is
returned to the service position.
11. Replace the control valve cover. *Be sure meter cable
is in place.
12. Make sure there is enough brine in the brine tank.
*13. Rotate program wheel counter-clockwise until it stops
at regeneration position.
14. Start regeneration cycle manually if water is hard.
*15. Plug cable into meter cover. Rotate cable to align drive
flat if necessary.
E. TO REPLACE SEALS & SPACERS
*1. Pull cable out of meter cover. Remove the control valve
cover.
2. 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.
3. Pull upward on end of piston yoke until assembly is
out of valve. Remove and replace seals and spacer
with fingers.
4. Inspect the inside of the valve to make sure that all
spacers and seals are in place, and that there is no
foreign matter that would interfere with the valve op-
eration.
5. Take new piston assembly and push piston into valve
by means of the end plug. Twist yoke carefully in a
clockwise direction to properly align it with drive gear.
Replace end plug retainer plate.
6. Place timer on top of valve. Be sure drive pin on main
gear engages slot in drive yoke (rotate control knob if
necessary).
7. Replace timer mounting screws. Replace screw and
washer at drive yoke.
8. Return bypass or inlet valving to normal service po-
sition. Water pressure should now be applied to the
conditioner and any bypass line shut off.
9. Plug electrical cord into outlet.
10. Set time of day. Cycle the control valve manually to
assure proper functions. Make sure the control valve
is returned to the service position.
11
11. Replace the control valve back. *Be sure meter cable
is in place.
Make sure there is enough brine in the brine tank.
12. Rotate program wheel counter-clockwise until it stops
at regeneration position.
13. Start regeneration cycle manually if water is hard.
* 14. Plug cable into meter cover. Rotate cable to align drive
flat if necessary.
*F. TO REPLACE METER
1. Pull cable out of meter cover.
2. Remove two screws and clips at bypass valve or
yoke.
3. Pull resin tank away from plumbing connections.
4. Remove two screws and clips at control valve. Pull
meter module out of control valve.
5. Apply silicone lubricant to four new o-rings and as-
semble to four ports on new meter module.
6. Assemble meter to control valve. Note: meter portion
of module must be assembled at valve outlet.
7. Attach two clips and screws at control valve. Be sure
clip legs are firmly engaged with lugs.
8. Push resin tank back to the plumbing connections and
engage meter ports with bypass valve or yoke.
9. Remove two clips and screws at bypass valve or yoke.
Be sure clip legs are firmly engaged with lugs.
10. Return bypass or inlet valving to normal service po-
sition. Water pressure should now be applied to the
conditioner and any bypass line shut off.
11. Check for leaks at all seal areas.
12. Plug electrical cord into outlet.
13. Set time of day. Make sure the control valve is returned
to the service position.
14. Rotate program wheel counter-clockwise until it stops
at regeneration position.
15. Start regeneration cycle manually if water is hard.
16. Plug cable into meter cover. Rotate cable to align drive
flat if necessary.
*G. TO REPLACE METER COVER AND/OR IMPELLER
1. Pull cable out of meter cover.
2. Remove four screws on cover.
3. Lift cover off of meter module, discard o-ring.
4. Remove and inspect impeller for gear or spindle dam-
age, replace if necessary.
5. Apply silicone lubricant to new o-rings and assemble
to the smallest diameter on meter cover.
6. Assemble cover to meter module. Be sure impeller
spindle enters freely into cover. Press firmly on cover
and rotate if necessary to assist in assembly.
7. Replace four screws and tighten.
8. Return bypass or inlet valving to normal service po-
sition. Water pressure should now be applied to the
conditioner and any bypass line shut off.
9. Check for leaks at all seal areas.
10. Plug electrical cord into outlet.
11. Set time of day. Make sure the control valve is returned
to the "in-service" position.
12. Rotate program wheel counter-clockwise until it stops
at regeneration position.
13. Start regeneration cycle manually if water is hard.
14. Plug cable into meter cover. Rotate cable to align drive
flat if necessary.
* Demand Regeneration Units