SYMPTOM POSSIBLE CAUSE SOLUTION
Pump (18006) running (quietly or
weak), with no or very little pressure
to floor or hand tool spray tips.
1. Defective Diode. NOTE: The
Diode controls which direction the
piston pumps. If the Diode is
defective, even a new Pump will not
work.
1. TEST: Test the Pump using the
Pump Motor Test Cable (7201). If
the Pump runs normally, replace the
Diode Assembly (10409). The
Diode Assembly is the Black Wire
conected to the Pump and brown
wire next to the yellow wire on the
8 Wire Cable Assembly (18206).
NOTE: Use only the Pump Test
Cable (7201) to test the
Pump.
There is a Diode inline on this cable.
ALSO: Over time the test Diode
may need replacing.
Pump running at full strength, very
little or no pressure to floor or hand
tool spray tips.
1. Empty Solution Tank. Check if
cleaning solution is still in removable
Bucket . This is a most common
mistake. The solution must be
poured from the Bucket into the
Solution Tank.
1. Pour solution from the
Solution Tank .
2. Plug is not connected to the
Coupler . NOTE: Plug may only
appear to be connected to the
Coupler .
2. Pull down on the middle of the
Coupler (10037) sleeve, without
letting up on sleeve, insert the Plug
(10038) . Release the coupler
sleeve. The sleeve must snap back
into position. Give the hose a tug to
ensure connection.
3. Clogged Pump Filter. 3. Clean the Pump Filter (10044).
Filter is threaded to the 45D Brass
Elbow (18211) connecting the Pump
to the Solution Tank . NOTE:
Reinstall the and
Filter
carefully to avoid cross threading the
Solution Tank .
4. Clogged Spray Tips. 4. Remove and clean Spray Tips
(10042) / (10050).
PUMP SYSTEM
Bucket
into the
Brass
45D Elbow
9
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