Fault Diagnosis - Stanley 734 AV Series Instruction And Service Manual

ENGLISH
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
pressure, but pintail
does not break
22
POSSIBLE CAUSE
Inoperative pump unit
Faulty Quick Couplers 9 and 10
Trigger Control Cable 14 not
connected correctly
Damaged Trigger Switch 6 or
Control Cable 14
Pump in local mode
Trigger Switch 6, 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 sea-
ling 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 co-
nnected at pump and placing tool
Replace Trigger Switch and/or Cont-
rol Cable
Refer to pump instruction manual
Replace Trigger Switch and/or Cont-
rol Cable
Check for correct connections at
pump and placing tool
Ensure placing tool is fi lled with oil
and correctly primed
Refer to pump instruction manual
Inspect placing tool – replace worn
or damaged components
Inspect Hose Assembly – ensure hose
connections 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 specifi cation
Check Quick Couplers 9 and 10 for
full engagement
Adjust pressure relief valve settings –
refer to pump instruction manual
See symptom on page 24
ORIGINAL INSTRUCTION
PAGE REF.
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10
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14 - 17
14 - 17
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