Fault Diagnosis
SYMPTOM
Placing tool Piston 1
will not return
Placing tool does not
eject the collar from
the anvil
Pull grooves on
fastener pintail
stripped during
installation
Avbolt
®
or Infalok
®
collar not fully swaged
Pintail fails to release
from nose equipment
Placing tool and
Hydraulic oil runs hot
Hydraulic Quick
Couplers 10 and 11
leak oil
22
POSSIBLE CAUSE
Return flow restricted or blocked
Hydraulic Hoses not connected
Pump valve malfunction
Pump Return Timer setting
incorrect – set too low
Pump return pressure relief valve
set too low
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
Operator not pushing nose
completely onto fastener pintail
before operating tool
Incorrect fastener length / grip
length
Worn or damaged jaw segments
Debris in jaw segments and/or
pintail grooves
Excessive sheet gap
Improper tool operation
Worn Anvil bore
Incorrect assembly of nose
equipment
Restriction in hydraulic line
High ambient temperature
Worn O-Ring in body of Quick
Coupler Male 10
REMEDY
Check Quick Couplers 10 and 11
for full engagement and/or fault
Check for correct connections at
pump and placing tool
Refer to pump instruction manual
Adjust Return Timer to
recommended setting – refer to
pump instruction manual
Adjust return pressure relief valve
to correct setting – 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
Instruct operator in correct
installation method
Use correct fastener
Check and replace jaw set – refer
to nose equipment datasheet
Clean jaw segments – refer to
nose equipment datasheet
Close gap between sheets
Check and replace Anvil – refer to
nose equipment datasheet
Refer to nose equipment
datasheet
Check hydraulic Quick Couplers
10 and 11 and replace if
necessary
Replace O-Ring and Back-up
Ring in Quick Coupler 10
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