Model H1301 Recovery and Recycling System
Installation, Operation and Maintenance Manual
Revision-L September, 2019
Page 100 of 105
VIII. Trouble Shooting Guide (continued)
K. Liquid Pump Trouble Shooting
1. Pump begins to Operate but then stops.
NOTE: If power remains applied to the pump with the pump head stopped: the
thermal overload switch, located internal to the pump, will open disconnecting the
pump motor from the input power. The pump will need to cool down for
approximately 15-minutes before the pump will operate again.
a. Receiving container valves are not open. Open the valves.
b. Plumbing between the machine and the receiving container is restricted or blocked.
c. Outlet Solenoid Valve SV-4 is not opening, refer to section-VIII.J.
d. Outlet Check Valve CV-6 is stuck closed. Strike the body of the valve sharply with
the handle of a screwdriver. If the valve does not open or continues to malfunction,
replace the valve with part number A4-04-5530-01-0.
e. The receiving container is in a high pressure or dangerous overfill condition.
Inspect the pressure and fill level of the receiving container.
2. Pump will not operate during automatic processing or when the front panel
switch is placed to the ON position:
a. Pump is frozen with water contamination or fouled with particulates. Complete the
following
a.1. Place the front panel Power Switch to the OFF position and disconnect Main
Electrical Power from the Machine.
a.2. Remove the lower left side panel of the machine
a.3. Using a small allen-key wrench; attempt to rotate the fan blades accessible
through the concentric slots in the rear of the pump motor.
If the fan can be easily rotated: continue the remaining
troubleshooting procedure with step-b: in the order as presented.
If the fan cannot be rotated easily, or does not rotate at all, complete
step-a4.
a.4. Remove the foam insulation from the pump head. Heat the pump head using
a heat gun until the pump head remains warm to the touch after the heat gun
is removed; again try to manually rotate the fan of the pump.
If the fan does not rotate the pump head is fouled with particulates:
Contact the factory or replace the pump using part number
A1-15-2000-03-0.
If the fan can be easily rotated the pump is contaminated with water:
complete section-VII.R: Outlet Section Maintenance.
b. Pump relay is not operating. Inspect the second relay mounted under the PLC unit
for operation using the front panel Outlet Pump override switch to energize the
relay.
c. Pump wiring is disconnected. Ohm-out wiring and repair connection.
d. Pump is worn out. Replace with part number A1-15-2000-03-0 per section-VII.R.
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