Fault Diagnosis - CPI EuroMix Silo Operating Instructions Manual

FAULT DIAGNOSIS FLOW CHART
CPI EuroMix has produced a flow chart to help you diagnose
faults and help you keep your silo working. It is often the case that
the cause of a fault is a simple thing that can easily be rectified by
the operator.
Humming sound
coming from
mixer motor?
YES
NO,
SILENT
Actions
Check RCDs in panel
not tripped
Check panel is turned
on (Main Isolator)
Ensure cleaning/
working toggle switch
is in correct "working"
position
Check site electricity
supply is live
Plugs are pushed in
correctly
(all plugs)
Check condition of
cables
Check key switch light
indicator - if red lights
shows clean out mixer
then call CPI
Rotation Indicator Light
showing - Polarity of site
electrical supply has
changed, site electrician
required
ALL OK
Call CPI
14
NO
NO, BANGING NOISE
HEARD
Action
Isolate power and
clean out mixer
RESTART
No Change, still
humming sound
Action
Check supply
RSCs for earth
phase, Neutral
and Earth
(Site Electrician)
ALL OK
Actions -
Clean out
Call CPI then call
CPI for
advice
Common faults include:
• Water hoses being connected incorrectly
• Power supply not being energised
• Water supply turned off at stop cock
• Silo product handle is in the closed position
• Electrical Safety Devices tripped
SET MATERIAL /
BLOCKAGE FOUND
Restart
NO
CHANGE
OR
REPEAT
Return to above
action and
inspect
Is mixer running?
(Shaft of mixer turning when viewed
from front)
YES, BUT KEEPS STOPPING AFTER
PRODUCING SOME MATERIAL
Action
ALL LOOKS
IN ORDER
Strip down and carry
out full cleandown and
inspect
POSSIBLE WEAR
(see reference photos
below)
Worn Dosing Screw
Plugs are pushed
Worn Scraper
panel not tripped
Worn Mixing Flight
Check for correct
Service
required,
Call CPI
Actions
in correctly (all
plugs)
Check condition
of cables and
plugs
Check RCDs in
Check site
electricity supply
is live
Unplug vibrator
if in use
rotation of motor
RESTART
No change,
Call CPI