SPP Pumps Auto Prime Medium Head Open Set ACE80-100 Workshop Manual - Manual (Page 5)

Workshop Manual for
ACE80/100 Diesel Driven Centrifugal Pumps
Manual No/Rev
W72-020E / 1
Our policy is one of continuous improvement and we reserve the right to alter specifications at any time
Page 5 of 21
This manual is a preliminary issue
for information only,
pending formal issue of
the complete manual.
5. FAULT FINDING GUIDE
Disconnect suction hose
Blank off suction entry
Fit vacuum gauge
Pump Fails to Prime
Reading
between
85 - 89 .5 kpa
(28.5 0 30 ft H20)?
Are
all plugs
tight?
Lift< or =
8.53m (28ft) for
ACE80/100
Check vertical
suction lift
Are hoses
leaking, collapsed
or blocked?
Is intake
blocked?
Test the Vacuum
Pump directly
Fit vacuum gauge
Reading
between
85 - 89 .5 kpa
(28.5 0 30 ft H20)?
NO YES
Move
Pump
NO
Rectify
NO
NO
Is impeller
blocked?
Rectify
Rectify
F
Rectify &
re-test YES
YES
YES
YES
YES
NO
YES
Rectify
C
NO
Is
Reflux Valve
Ball seating
properly?
NO
Is belt drive
tension OK?
Rectify
D
NO
YES
Excessive wear.
Remove Vacuum
Pump & either
overhaul or fit new or
exchange pump
YES
Rectify
A
Is the
pump or NRV
blocked or
damaged?
YES
NO
Rectify
B
YES
Are all
joints sound &
leak free?
NO
Rectify
C
NO
Is Main
Valve float
gear free and
intact?
YES
Is pump
casing free from
holes?
Check impeller wear
plate clearances
and rectify F
NO
Rectify
F
YES
Is Vacuum
Pump filter
blocked?
NO
Rectify
F
ACE80-100 Fault Finding Chart
YES