Like any other valves, dispense
valves should always be maintained to
prevent having problems
while using it or cause any damage into it. The best way to maintain its
condition is to clean it. However, encountering damages on your valves can
still occur, which means you have to know how to fix it. Below are the proper
ways you should follow when cleaning your dispenser valve and what you can do
if the common problems occur.
Maintenance steps
1.
Dismantle the auger assembly.
2.
Carefully pull the auger from the fluid body.
Ensure that the seal will not be damaged while doing this process.
3.
With a use of cotton swab, gently remove the
seal.
4.
Use brush and solvent to clean all parts of the dispenser valve. It will be better
if you use ultrasonic device to clean all the parts.
5.
Check if the seal and all parts have no damage
or wear. If there are signs, you might need to replace it.
6.
With the spring side inward, carefully insert
the seal into the fluid body by gently pushing it.
7.
Press the bearing into the fluid body fully.
8.
Carefully bring back the auger by inserting it
and making sure that seal will not be damaged.
Troubleshooting
1. The auger is not turning
·
Damaged cable
– check on how damaged the cable is and replace it with a new one if necessary
·
Fault in controller – use a voltmeter to check
the output of controller and refer to the specifications of the valve to fix
this problem.
·
Fault in motor – if this problem occur, it will
be better to call the service or you can replace the pre-wired motor assembly
only if you know how to do it.
·
Fault in wiring – make sure that all connections
are tighten and accurate to allow you turn the auger
·
Incorrect setting of controller – find out if
the settings of controller including the dispense duration, motor voltage, and
direction, are correct based on what is indicated to the specifications section
of the dispense valve.
·
Jammed auger – this problem is often caused by
the things stuck on the auger, which means you just have to clean it.
·
Loose coupling – a loose coupling can make auger
unable to turn, so just grab your screwdriver and tighten its screws.
2. There is no deposit coming out of the dispense valve
·
Motor is turning counter-clockwise – make sure
that the valve’s motor direction is correctly set, and if it is, just reverse
its motor wires to solve this problem.
·
Worn out barrel – replace the barrel with the
filled one to make deposit come out
·
Absence of air pressure – check the air settings
and its controller input to ensure that air pressure is allowed to pass through.
·
Dried material – just replace the dried
materials with the new ones
·
Not enough air pressure – find the controller
setting of the dispense valves and increase its pressure
·
Clogged delivery path – there are three ways to
solve this problem. The first one is to clean it, second is to run purges
routines, and the third one is to replace its supply hose, tip, or fittings.
3. The deposits coming out are smudged
·
Unsettled slide position – you must either
increase the settling or dwell times, or decrease the rates of acceleration or
velocity
·
Loose valve – just tighten the mounting
connection od the dispense valve
·
Fault in motion control – adjust the setting of
the motion control system or send it to the company for service
No comments:
Post a Comment