Stanley 07536, Instruction And Service Manual

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8. FAULT DIAGNOSIS
SYMPTOM POSSIBLE CAUSE REMEDY PAGE REF.
Tool will not place fas-
tener
Low air pressure. Increase air pressure
Lack of lubrication. Lubricate tool at air inlet point
High broach load.
Check fastener grip and applica-tion hole
size
Check for correct size mandrel.
Tail jaws switched off. Switch on tail jaws
Air in hydraulic system. See ‘Priming Procedure’ 23
‘Mandrel Slip’ - jaws will
not grip mandrel
Worn or dirty tail jaws. Clean or renew as necessary
’ Insufficient air pressure/volume. Increase air pressure/volume
’ Tail jaw switch inoperable. Replace switch
’ Air leaks to tail jaws. Renew ‘O’ rings on piston 11
Mandrel broken and not reaching tail jaws. Replace mandrel
Fault in pneumatic control box.
Contact Stanley Engineered Fastening
personnel
Jaws will not release
mandrel
Dirty tail jaws or jaw housing. Clean and lubricate
Faulty tail jaw switch. Replace ‘O’ rings
Trapped air signal Check pneumatic lines
Fault in pneumatic control box
Contact Stanley Engineered Fastening
personnel
Fasteners will not feed
through nose jaws
Tail jaws not switched on. Switch on tail jaws
Worn tail jaws. Renew tail jaws
Cursor orientation incorrect. Refit, ensuring correct orientation
Incorrect cursor Fit correct cursor
Incorrect nose jaws. Fit correct nose jaws
Mandrel follower spring not fitted. Fit correct mandrel follower spring
Mandrel follower length Fit correct mandrel follower
Incorrect gap between fastener head
and nose jaws when loaded.
Set gap to 1.5mm - 3mm (1/16” - 1/8”)
See ‘Loading the Tool’
11-12
Cursor sticking. Clean and oil cursor
worn air cursor Renew cursor
Incorrect mandrel follower spring fitted. Fit correct mandrel follower spring
Worn or broken barrel return spring
Replace barrel return spring
Excessive tail jaw wear High broach load.
Check application hole size and thickness
and fastener grip capa-bility
Feeding more than one
fastener at a time
Mandrel slip. Check as for ‘Mandrel Slip’, stage 2
Incorrect gap between fastener head
and nose jaws when loaded
Set gap to 1.5mm - 3mm (1/16” - 1/8”)
See ‘Loading the Tool’ on page
11-12
Other symptoms or failures should be reported to your local Stanley Engineered Fastening authorised distributor or repair centre.
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ENGLISH ORIGINAL INSTRUC TION