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
Summary of Contents for C-4
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Page 16: ...MODEL C4 PARTS DIAGRAM 15 ...
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