Table of Contents
Advertisement
Section 3 - General Information: Troubleshooting
Over Pressure System Protection
The system incorporates monitors for high pressure
monitoring. These monitoring devices will prevent the
system from continued operation if high pressure
situations develop.
There are pressure sensors located on each side of the
hose mounting block. The high pressure sensor is
located at the outbound of the fluid section.
The high pressure monitoring sensor will engage if fluid
pressure increases above 3200 psi.
If a high pressure situation develops, the sensor will
detect this and immediately engage the hold-in circuit.
This will disengage power to the machine and it will
stop cycling. It will also turn the heater off.
On the control box panel, there are two yellow lighted
push buttons marked over pressure. One of these push
buttons will be illuminated after the monitoring sensor
engages, indicating where the problem is located (ISO
or Poly).
Over Pressure Resets
In an over pressure situation, the system will remain
shut down until it is manually reset.
At this point, it is necessary to determine if the problem
is an over pressure situation.
When the sensor engages, the system will be frozen,
giving you the pressure readings at the time the problem
was detected.
Inspect the fluid pressure gauges, in an over pressure
situation, one of the fluid pressure gauges will be
significantly higher than the other gauge.
When main power to unit is on, the console will have wires
that are live. Disconnect or turn off main power source
before opening console to make any repairs.
Before performing any repairs on the system, ALL AIR and
FLUID PRESSURES SHOULD BE RELIEVED TO ZERO
(BLEED-OFF)!
Over Pressure Problem Correction
1.
Determine if the problem is high pressure related.
2.
Relieve system hydraulic pressure.
3.
Turn off main power
4.
Fix the problem area:
.
a
Potential high pressure causes:
- Restriction
- Overheating material in static position
- ISO filter at gun
5.
Re-start system for operation
6.
Once the power has been turned off and problem solved
and the main power is turned on again, the over
over pressure lighted buttons will automatically be reset.
For additional diagnostics refer to trouble shooting guide
GC-1380
If you do not understand the electrical hook-up described
above, consult your local GlasCraft distributor or a qualified
electrician. It is recommended that a qualified, licensed
electricianshould install power to the supply disconnect.
You should always follow all local or national electrical
codes.
Disconnect power source BEFORE attempting any repairs
or opening the Control Boxes. Access to internal parts is
limited to qualified personnel ONLY! Place the main power
breaker in the OFF position BEFORE disconnecting the
power cables. This equipment is not approved for use in
hazardous locations as set forth in the National Electrical
Code Article 500 and Sub-Part "S" of the OSHA Standards.
38
Advertisement
Table of Contents
