SP-15 Motor / Ink Drum Noise

We are having some issues on our SP-15 with a “clicking” noise from the ink drum. It sounds like it’s coming from the pulley/timing belt area. It’s gotten progressively worst the past 2 days and also looks like it’s maybe a little lopsided (or is that just the belt?). This press is still new to us and I know it still needs quite a bit of rehab, but before diving in or disassembling (waiting on the third edition of the maintenance book), I wanted to ask for tips or thoughts here. Any help appreciated!




After Paul’s help below, I removed the timing belt and ink drum to find the ink drum pulley broken in a couple different places.

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6 years ago

Upon further inspection, it was definitely the drum pulley. See below photo – it was actually cracked & broken in two different places and tiny plastic shards fell out when I removed the timing belt. Ink drum removed and replacement part ordered from NA Graphics. Thanks Paul!

Paul Moxon, Moderator
6 years ago

The belt may still have teeth on the underside but it may be rubbing against the ink drum spring.
I think the clicking sound is the drum pulley. While you’re at it, check the fastness of the motor pulley on the drive shaft.

Paul Moxon, Moderator
6 years ago

Replacements for both the pulley and belt are available from NA graphics.

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