This is topic Ampex mag penthouse question in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.
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Posted by Josh Jones (Member # 447) on 06-14-2002, 05:14 PM:
Summer is here, and I have once again started on the trek of converting one of my mag penthouses to DTS. The bearings in the weighted rollers are bad and need to be replaced. the question is how do you remove them? Do i need a special tool?Josh
Posted by Steve Guttag (Member # 268) on 06-14-2002, 10:28 PM:
On an Ampex penthouse? Nope...pull the flywheels, remove the stablizers...tap out the bearings on the non-op side (don't loose the loading springs), pull off the bearing still on the shaft...that is about it for the stablizer bearings.All of the idler rollers just need to have their bearings tapped out with an appropriate drift. All of the bearings in the Ampex penthouse are standard sizes. I believe the idlers use R4s (aka P-3368, BG-259), I forget what the stabilizers use but they aren't anything special.
Steve
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"Old projectionists never die, they just changeover!"
Posted by Josh Jones (Member # 447) on 06-14-2002, 10:39 PM:
Thanks for the help Steve. Tapped 'em with a screwdriver and small hammer and they came out. One of the shafts was boogered so I had to sand it down before the bearing would come off.Josh
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"Film is made of silver, video is made of rust"
'nuf said