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Heated Pump Troubleshooting
See pump manual for additional pump troubleshooting information.
Problem
Cause
Solution
Material not heated to proper
temperature.
Check and adjust temperature to
proper set point. Wait for pump/platen
to heat up.
Air is trapped in pump.
Bleed air from pump. See
.
Downstroke: Dirty or worn pump
intake valve.
Clean or repair. See Pump Manual.
Upstroke: Dirty or worn pump piston
valve.
Clean or repair.
Rapid downstroke or upstroke (pump
cavitation).
Machine is out of material
Adjust empty level sensor.
Material leaks around pump outlet.
Loose outlet fitting.
Tighten outlet fitting.
Material leaks around bleed port.
Loose bleed port fitting.
Tighten bleed port fitting.
Problem with air motor.
See Air Motor Manual.
Foreign object lodged in pump.
Relieve pressure. See Pump Manual.
Platen not fully up to temperature.
Wait for full temperature.
Pump will not move up and down.
Valve to air motor is off.
Check gauges and valves to the air
motor.
Leak around pump wet-cup.
Worn throat seals.
Replace throat seals. See Servicing
the Throat packings in manual
334127 or 334128.
Air Motor Troubleshooting
See air motor manual for additional air motor troubleshooting information. See
Problem
Cause
Solution
Air motor will not run.
Air motor solenoid is off.
Wait for heat zones in use to reach
temperature setpoint values.
Inspect and clean poppets. See Air
Motor Manual.
Air motor stalled.
Damaged main air valve spool or
poppets.
Rebuild main air valve. See Air
Motor Manual.
Air continuously exhausting around
air motor shaft.
Damaged air motor shaft seal.
Replace air motor shaft seal. See
Air Motor Manual.
Air continuously exhausting around
air valve/slide valve.
Air valve/slide valve gasket is
damaged.
Replace the valve gasket. See Air
Motor Manual.
Air continuously exhausting from
muffler when motor is idle.
Internal seal damage.
Rebuild air motor. See Air Motor
Manual.
Icing on muffler.
Air motor operating at high pressure
or high cycle rate.
Reduce pressure, cycle rate, or duty
cycle of motor.
334130A
45
Summary of Contents for 334130A
Page 10: ...Component Identification Electrical Control Enclosure Figure 3 Electrical Enclosure 10 334130A...
Page 57: ...Repair Figure 35 Inside of Electrical Control Enclosure 334130A 57...
Page 65: ...Parts Parts Therm O Flow 200 Supply Unit 334130A 65...
Page 68: ...Parts Electrical Module 68 334130A...
Page 69: ...Parts 334130A 69...