8
ENGLISH
Winterizing
Drain the pump from water by pumping it
until it primes air and there is no fluid com
-
ing from the outlet.
Service instructions
Change of diaphragm
1. Remove the two screws that hold the
clamps, and remove the two clamps
2. Remove the pump housing
3. Remove the screw that hold the dia
-
phragm and the diaphragm washer
4. Remove the diaphragm and the dia
-
phragm washer
5. Mount the new diaphragm and the new
diaphragm washer with the new screw
6. Assemble the pump housing and the
clamps
Trouble shooting chart
Symptom Cause Solution
1. Pump does not run. 1.1 Tripped thermal protector 1.1.1 Check fuse. If motor is overheated let it
or blown fuse. cool down prior to restart.
1.2 Faulty wire connection or 1.2.1 Check battery/power supply, main switch
or blown fuse. and wiring._
1.4 Motor malfunctioning. 1.4.1 Change pump._
1.5 Pump/motor frozen. 1.5.1 Thaw pump and system and check for
damage. The pump/ motor is liable to
damage when a frozen pump is started
2. Pump does not prime. 2.1 Tank empty. 2.1.1 Fill up tank.
2.2 Debris in check-valves. 2.2.1 Open the pump body by unscrewing the
two supporting screws and clean the
check-valves.
2.3 Perforated diaphragm. 2.3.1 Replace diaphragm.
2.4 Leak on inlet side of pump. 2.4.1 Check tightness of hose connections at
pump and tank.
2.5 Inlet or outlet plumbing 2.5.1 Check plumbing and valves
restricted.Restriction on
outlet side of pump/too
high pressure.
3. Low flow/pressure. 3.1 Leak on inlet side of pump. 3.1.1 Check tightness of hose connections,
check hose for possible damage
3.2 Leak on outlet side of pump. 6.2.1 Check tightness of hose connections,
check hose for possible damage.
3.3 Perforated diaphragm 3.3.1 Replace diaphragm
3.4 Motor malfunction 3.4.1 Change pump
3.5 Debris in check-valves 3.5.1 Open the pump body by unscrewing the
two supporting screws and clean the
check-valves.
4. Pump is excessively noisy. 4.1 Inlet or outlet plumbing 4.1.1 Check plumbing
restricted. Restriction on 4.1.2 Ensure that valves on inlet/outlet are open
outlet side of pump/too high
pressure.
4.2 Pump mounting is loose. 4.2.1 Tighten screws
4.3 Defective motor 4.3.1 Change pump
4.4 Defective transmission 4.4.1 Change pump
Change of pump housing
1. Remove the two screws that hold the
clamps, and remove the two clamps
2. Remove the pump housing
3. Assemble the new complete pump hous
-
ing and the clamps
Cleansing check valves
1. Remove the two screws that hold the
clamps, and remove the clamps
2. Remove the pump housing
3. Inspect the rubber check valves and re
-
move any debris
4. Assemble the pump housing and the
clamps
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