Stanley AV50 Instruction And Service Manual page 23

O R I G I N A L I N S T R U C T I O N
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 Avdelok® XT
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
All numbers in bold refer to the General Assembly and Parts List on pages 17, 18 and 19.
* Service Kit on page 12.
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
E N G L I S H
PAGE REF.
10
10
13 - 16
13 - 16
11
11
11
11
16
16
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