Fault Diagnosis - Stanley AV 20 Manual De Instrucciones Y Servicio

E N G L I S H

7. FAULT DIAGNOSIS

SYMPTOM
Placing tool will not
operate
Trigger Switch 6 does not
function
Pump running but
placing tool does not
function
Placing tool operates
erratically
Pump builds full pressure,
but pintail does not break
Placing tool Piston 18 will
not return
18
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 sealing
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
Return fl ow restricted or blocked
Hydraulic Hoses not connected
Pump valve malfunction
O R I G I N A L I N S T R U C T I O N
REMEDY
Check pump power supply and
refer to pump unit instruction manual
Replace Quick Couplers
Check Control Cable is correctly
connected 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 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 19
Check Quick Couplers 9 and 10 for
full engagement and/or fault
Check for correct connections at
pump and placing tool
Refer to pump instruction manual
PAGE REFERENCE
16
11
16
16
11
11
13 – 16
16
13 – 16
13 – 16
6 – 7
11
12 – 13
11 - 12
12
12