Johnson Pump WPS 3.4 UNO Manual Del Usuario página 11

Temperature
Max liquid temperature: +50°C/+120°F
Max ambient temperature: +60°C/+140°F
Winterizing
If water is not drained from the system during
freezing temperatures, damage is likely to be
sustained in the plumbing and in the pump. To
prevent damage follow the instructions
beneath:
1. Drain water storage tank.
2. Open all taps.
3. Run pump until remaining water is
expelled.
4. Disconnect inlet and outlet tubes
5. Run pump briefly to confirm that
water has been expelled.
6. Taps shall remain open and pump
fittings shall remain disconnected
until temperatures are above
freezing.
Never start a frozen pump. Even if it is
drained it might contain a small amount of
frozen water that locks the rotor.
Service instructions
(see page 42-43)
Change of Switch (pos A)
1. Remove the screws (28) and then remove
the complete switch including diaphragm
(19).
2. Remove the cables (30 and 31) from the
motor cable and power source.
3. Take the new switch and attach the cables
to motor and power source.
4. Locate the new diaphragm (19) and then
the new complete switch.
Change of Diaphragm kit (pos B)
1. Remove the screws (18) with a Torx #20
tool. (Pos 18 screws should be fitted to
the through holes which can be seen on
the backside of the motor end bell).
2. Separate the pump assembly from motor.
3. Remove the screws (17) with a Torx #20
tool.
4. Hold the black pumpbody (14) towards
the ground. Carefully remove the
diaphragm kit (B) from pump body (14).
Ensuring that pos 10-14 still remains
together with pump body (14).
5. Locate the diaphragm kit into pump body
(14) incl pos 10-14 and mount the five
short screws (17) into the threaded holes
in the motor flange.
6. Mount the complete pumphead kit onto
the motor coupling flange taking notice to
fit the slot in cam (5) in right position
against motor shaft and the three slots on
motor end bell.
7. Assemble the remaining long screws (18)
which will hold the motor/pump unit
together. (pos 18 screws should be fitted
to the through holes that can be seen on
the backside of the motor end bell).
Change of complete Pump kit (pos C)
1. Remove the screws (28) and then remove
complete switch including diaphragm (19).
2. Remove the cables pos (33 and 34) from
the motor cable and power source.
3. Remove the screws (18) with a Torx #20
tool. (pos 18 screws has a through hole on
the backside of the motor end bell).
4. Separate the pump assembly from the
motor.
5. Mount the complete pumphead kit onto
the motor coupling flange taking notice to
fit the slot in cam (5) in right position
against motor shaft and the three slots on
the motor end bell.
6. Assemble the long screws (18) which will
hold the motor/pump unit together. (pos 18
screws should be fitted to the through
holes that can be seen on the backside of
the motor end bell).
7. Locate the diaphragm (19) and then the
complete switch.
ENGLISH
11