wonwinglo
SMF Supporter
- Joined
- Apr 18, 2004
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- First Name
- Barry
ISSUE 78-The aileron control pulleys & brackets.
This weeks issue 78 contains 9 castings,these are for the aileron pulleys and brackets,the quality of these mazak castings is indifferent,the basic brackets are adequate but the small pulleys leave something to be desired,it would have been nice to have had them round for starters ! I also had to raid my spare set to replace two that had no pulley channel,these were just cast as blobs of molten metal,however we will not dwell too much on these points but proceed with the assembly,the magazine instructions are adequate but a few extra tips will not come amiss.
Firstly start off by checking the parts for burrs,and make sure that those pulleys are what they should be,the axles for some reason are square so a little work with a swiss file will fettle them into shape,beware they are tiny so dont loose them in the best axminster or in amongst the sawdust in the workshop,make sure that they sit nicely into the slots in the brackets and give them a quick spin to make sure they revolve properly,next with the smallest amount of cyno applied with a toothpick join the bracket halves and in turn trapping the pulleys in the appropiate slots,beware of getting any stray cyno onto the pulleys otherwise you will need to use debonder.Pay particular care to get the orientation correct and mount the brackets to the spar with epoxy adhesive.
This weeks issue 78 contains 9 castings,these are for the aileron pulleys and brackets,the quality of these mazak castings is indifferent,the basic brackets are adequate but the small pulleys leave something to be desired,it would have been nice to have had them round for starters ! I also had to raid my spare set to replace two that had no pulley channel,these were just cast as blobs of molten metal,however we will not dwell too much on these points but proceed with the assembly,the magazine instructions are adequate but a few extra tips will not come amiss.
Firstly start off by checking the parts for burrs,and make sure that those pulleys are what they should be,the axles for some reason are square so a little work with a swiss file will fettle them into shape,beware they are tiny so dont loose them in the best axminster or in amongst the sawdust in the workshop,make sure that they sit nicely into the slots in the brackets and give them a quick spin to make sure they revolve properly,next with the smallest amount of cyno applied with a toothpick join the bracket halves and in turn trapping the pulleys in the appropiate slots,beware of getting any stray cyno onto the pulleys otherwise you will need to use debonder.Pay particular care to get the orientation correct and mount the brackets to the spar with epoxy adhesive.