Fault Diagnosis - Stanley AV-15 Instruction And Service Manual

O R I G I N A L I N S T R U C T I O N

8. FAULT DIAGNOSIS

SYMPTOM
Placing Tool will not
operate
Trigger Switch 7 does
not function
Pump running but
placing tools does not
function
Placing tool operates
erratically
Pump builds full pres-
sure, but pintail does
not break
POSSIBLE CAUSE
Inoperative pump unit
Faulty Quick Couplers 10 and 11
Trigger Control Cable 14 not con-
nected correctly
Damaged Trigger Switch 7 or
Control Cable 14
Pump in local mode
Trigger Switch 7, Control Cable 14
or connector damaged
Hydraulic Hoses not connected
Low oil level
Placing tool external oil leak
Hose Assembly external oil leak
Pump internal/external oil leak
Low or erratic hydraulic pressure
supply
Worn or damaged hydraulic seals
in placing tool
Worn or damaged hydraulic seal-
ing surfaces in placing tool
Pump internal/external oil leak
Breakload greater than placing
tool capacity at full pressure
Flow to placing tool blocked
Pump pressure relief value set too
low
Pull grooves on fastener pintail
stripped
Improper tool operation
REMEDY
Check pump power supply and refer to
pump unit instruction manual
Replace Quick Couplers
Check Control Cable is correctly connect-
ed at pump and placing tool
Replace Trigger Switch and/or Control
Cable
Refer to pump instruction manual
Replace Trigger Switch and/or Control
Cable
Check for correct connections at pump
and placing tool
Ensure placing tool is filled with oil and
correctly primed
Refer to pump instruction manual
Inspect placing tool – replace worn or
damaged components
Inspect Hose Assembly – ensure hose con-
nections are tight and/or replace damaged
hose connectors
Refer to pump instruction manual
Refer to pump instruction manual
Inspect placing tool – replace worn or
damaged seals
Inspect placing tool – replace worn or
damaged components
Refer to pump instruction manual
Refer to placing tool specification
Check Quick Couplers 10 and 11 for full
engagement
Adjust pressure relief valve settings –
refer to pump instruction manual
See symptom on page 12
E N G L I S H
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