Fault Diagnosis - Avdel 7536 Betriebsanleitung

F a u l t D i a g n o s i s
S y m p t o m P o s s i b l e C a u s e
Tool will not place Low air pressure.
fastener Lack of lubrication.
High broach load.
Check for correct size mandrel.
Worn or broken tail jaws.
Tail jaws switched off.
Air in hydraulic system.
'Mandrel Slip' - Worn or dirty tail jaws.
jaws will not grip ' Insufficient air pressure/volume.
mandrel ' Tail jaw switch inoperable.
' Air leaks to tail jaws.
Mandrel broken and not reaching tail jaws.
Fault in pneumatic control box.
Jaws will not Dirty tail jaws or jaw housing.
release mandrel Faulty tail jaw switch.
Trapped air signal
Fault in pneumatic control box
Fasteners will not Tail jaws not switched on.
feed through nose Worn tail jaws.
jaws Cursor orientation incorrect.
Incorrect cursor
Incorrect nose jaws.
Mandrel follower spring not fitted.
Mandrel follower length
Incorrect gap between fastener head
and nose jaws when loaded.
Cursor sticking.
worn air cursor
Incorrect mandrel follower spring fitted.
Worn or broken barrel return spring
Excessive tail jaw High broach load.
wear
Feeding more than Mandrel slip.
one fastener at a Incorrect gap between fastener head
time and nose jaws when loaded
Other symptoms or failures should be reported to your local Avdel authorised distributor or repair centre.
R e m e d y
Increase air pressure
Lubricate tool at air inlet point
Check fastener grip and application
hole size
New tail jaws
Switch on tail jaws
See 'Priming Procedure'
Clean or renew as necessary
Increase air pressure/volume
Replace switch
Renew 'O' rings on piston 11
Replace mandrel
Contact Avdel personnel
Clean and lubricate
Replace 'O' rings
Check pneumatic lines
Contact Avdel personnel
Switch on tail jaws
Renew tail jaws
Refit, ensuring correct orientation
Fit correct cursor
Fit correct nose jaws
Fit correct mandrel follower spring
Fit correct mandrel follower
Set gap to 1.5mm - 3mm ( 1 /
16
See 'Loading the Tool'
Clean and oil cursor
Renew cursor
Fit correct mandrel follower spring
Replace barrel return spring
Check application hole size and thickness
and fastener grip capability
Check as for 'Mandrel Slip', stage 2
Set gap to 1.5mm - 3mm ( 1 /
16
See 'Loading the Tool' on page
P a g e R e f
20
" - 1 / ")
8
9-10
" - 1 / ")
8
9-10
21