Stanley 734 AV Series Instruction And Service Manual page 24

ENGLISH
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
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
All numbers in bold refer to the General Assembly and Part List on pages 18, 19 and 20.
* Service Kit on page 13.
POSSIBLE CAUSE
Return fl ow restricted or blocked
Hydraulic Hoses not connected
Pump valve malfunction
Pump Return Timer setting inco-
rrect – 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 sea-
ling 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 equi-
pment
Restriction in hydraulic line
High ambient temperature
Worn O-Ring in body of Quick
Coupler Male 9
REMEDY
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
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 installati-
on 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
ORIGINAL INSTRUCTION
PAGE REF.
10
10
14 - 17
14 - 17
11
11
11
11
19
19
23