F
A U L T D I A G N O S I S
SYMPTOM POSSIBLE CAUSE REMEDY
Tool will not place ➝ Low air pressure. ➝ Increase air pressure.
fastener. ➝ Lack of lubrication. ➝ Lubricate tool at air inlet point.
➝ High broach load. ➝ Check fastener grip and application hole size.
➝ Check for correct size mandrel.
➝ Worn or broken tail jaws. ➝ New tail jaws.
➝ Tail jaws switched off. ➝ Switch on tail jaws.
‘Mandrel Slip’ - jaws will ➝ Worn or dirty jaws. ➝ Clean or renew as necessary.
not grip mandrel . ➝ Insufficient air pressure/volume. ➝ Increase air pressure/volume.
➝ Tail jaw switch inoperable. ➝ Replace switch.
➝ Faulty valve on guard. ➝ Return guard for service.
➝ Air leaks to tail jaws. ➝ Renew ‘O’ rings on piston 6.
➝ Mandrel broken and not reaching tail jaws. ➝ Replace mandrel.
Jaws will not release ➝ Dirty tail jaws or tail jaw housing. ➝ Clean and lubricate.
mandrel. ➝ Faulty valve/guard or tail jaw switch. ➝ Service or replace as necessary.
Fasteners will not feed ➝ Tail jaws not switched on. ➝ Switch on tail jaws.
through nose jaws. ➝ Worn tail jaws. ➝ Renew tail jaws.
➝ Cursor orientation incorrect. ➝ Refit, ensuring correct orientation.
➝ Unsuitable nose jaws. ➝ Fit correct nose jaws.
➝ Mandrel follower spring not fitted. ➝ Fit mandrel follower spring.
➝ Incorrect gap between fastener head and nose jaws ➝ Set gap to 1.5mm - 3mm (
1
/16” -
1
/8”).
when loaded. See ‘Loading the Tool’, on page 8.
➝ Cursor sticking. ➝ Clean and oil cursor.
➝ Weak outer spring around cursor. ➝ Renew cursor.
➝ Incorrect mandrel follower spring fitted. ➝ Fit correct mandrel follower spring.
Excessive tail jaw wear ➝ High broach load. ➝ Check application hole size and thickness and
fastener grip capability.
➝ High shock loads through mandrel. ➝ Ensure correct number of bush stops.
Feeding more than ➝ Mandrel slip. ➝ Check as for ‘Mandrel Slip’, stage 2.
1 fastener ➝ Incorrect gap between fastener head and nose jaws ➝ Set gap to 1.5mm - 3mm (
1
/16” -
1
/8”).
when loaded. See ‘Loading the Tool’, on page 8.
27
To Next Page
Loading...
