Avdel 07535 MkII Betriebsanleitung Seite 77

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.
Defective non-return valve.
Jaws will not Dirty tail jaws or jaw housing.
release mandrel Faulty tail jaw switch.
Fasteners will not Tail jaws not switched on.
feed through nose Worn tail jaws.
jaws Cursor orientation incorrect.
Incorrect nose jaws.
Mandrel follower spring not fitted.
Incorrect gap between fastener head
and nose jaws when loaded.
Cursor sticking.
Weak outer spring around cursor.
Incorrect mandrel follower spring fitted.
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
Item numbers in bold refer to the general assemblies and parts lists pages 26-27.
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 8
Replace mandrel
Replace non-return valve
Clean and lubricate
Replace 'O' rings
Switch on tail jaws
Renew tail jaws
Refit, ensuring correct orientation
Fit correct nose jaws
Fit correct mandrel follower spring
1
Set gap to 1.5mm - 3mm ( /
16
See 'Loading the Tool'
Clean and oil cursor
Renew cursor
Fit correct mandrel follower spring
Check application hole size and thickness
and fastener grip capability
Check as for 'Mandrel Slip', above
1
Set gap to 1.5mm - 3mm ( /
16
See 'Loading the Tool'
P a g e R e f
36
1
" - / ")
8
9-10
1
" - / ")
8
9-10
37