Gardner Denver Reavell H5000 Series, Operator'S Handbook Manual

Page: 46 / 96

FAULT GUIDE
PAGE 44
Symptom Fault Recommendation(s)
11.1 WILL NOT
START
?
Electrical fault.
9
Check power to starter.
9
Check emergency stop buttons are released.
9
Check for previous stop fault condition – high
air / gas temperature switches, low oil pressure
switch etc.
9
Check fuses within starter.
9
Check wiring connections to motor terminal.
9
Check continuity in motor windings.
?
Diesel engine fault
9
Check diesel engine handbook
?
Mechanical fault.
9
Check via bell-housing inspection cover that
compressor is free to turn by hand.
11.2 CUTS OUT ON
START-UP
?
Motor overload set
too low.
9
Reset overload.
?
Low supply
voltage.
9
Check incoming supply for suitability.
?
Star/Delta timer
setting incorrect.
9
Adjust timer period to suit.
?
Low oil pressure
switch operating.
9
See fault 'LOW OIL PRESSURE'.
9
See fault ‘STOPS SUDDENLY’.
9
Check override timer setting.
?
Low oil level switch
operating.
9
Check switch.
9
Check oil level, refill as necessary.
?
Low inlet air / gas
pressure switch
operating.
9
See fault ‘STOPS SUDDENLY’.
9
Check override timer setting.
?
High inlet air / gas
pressure switch
operating.
9
See fault ‘STOPS SUDDENLY’.
?
Diesel engine fault
9
Check diesel engine handbook
11.3 LOW OUTPUT
?
Inlet filter dirty or
blocked.
9
Check condition of inlet filter element.
?
Inlet actuated valve
malfunction.
9
Check that valve is fully open.
?
DDV’s not closing
fully.
9
Confirm electrical supply to DDV solenoid valve.
9
Confirm DDV solenoid operation.
9
Check that solenoid valve gas supply pipework
is not damaged or blocked.
9
Check 1
st
stage separator for blockage at
solenoid valve gas supply connection port.
9
Check DDV diaphragms for damage.
9
Check DDV valves and seats for leaks.
?
Compressor valve
malfunction.
9
Check 1
st
stage concentric valves for damage to
seats, springs and/or plates, particularly suction
items.
9
Check for damage to o-rings and/or seats on 1
st
stage valve covers.
?
Safety valve
leaking.
9
Check all safety valves for leaks. DO NOT
ADJUST.
?
High air / gas
leakage into
crankcase.
9
Check for excessive wear of pistons, rings and
cylinders. Check 4
th
stage components first,
then progressively 3
rd
, 2
nd
and 1
st
.
?
Speed too low
9
Check for drive belts slipping.
9
Check speed of electric motor or diesel engine.