Stanley AV 20 Instruction And Service Manual page 19

O R I G I N A L I N S T R U C T I O N
SYMPTOM
Placing tool does not
eject the collar from the
anvil
Pull grooves on fastener
pintail stripped during
installation
Avdelok® or Avbolt® collar
not fully swaged
Pintail fails to release
from nose equipment
Placing tool and
Hydraulic oil runs hot
Hydraulic Quick Couplers
9 and 10 leak oil
POSSIBLE CAUSE
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 9
REMEDY
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 9
and 10 and replace if necessary
Replace O-Ring and Back-up Ring in
Quick Coupler 9
E N G L I S H
PAGE REFERENCE
13 - 16
13 - 16
12 – 13
12 – 13
12 – 13
12 – 13
16
16
19