BLADDER

691574 BLADDER is the main access point for getting up onto the rig's top deck or the mast platform. You use it to climb up for routine checks, maybe to grease the mast sheaves, or to get a better look at the top drive or feed cylinder connections. It’s not just for show; it’s how you safely reach those higher-up service points without having to rig up a separate platform or use a lift every time. It's gotta be sturdy, because you're often climbing with tools or parts.

When this BLADDER starts to go, you'll usually notice it first as a bit of a wobble or maybe a rung that feels a little loose underfoot. Corrosion is a big one, especially on rigs working in wet or salty environments; you'll see rust starting to pit the steel, particularly around the welds or where it bolts to the frame. A bent rail or a cracked rung from an impact or just heavy use isn't uncommon either. The big deal here is safety, obviously. A compromised BLADDER isn't just an inconvenience; it's a serious fall hazard for anyone trying to service the rig.

Always give this BLADDER a good visual inspection during your pre-shift walkaround. Don't just glance at it; actually grab the rails and give it a good shake. Pay close attention to the mounting points and the welds where the rungs meet the side rails – those are common spots for fatigue cracks to show up. And for crying out loud, make sure it’s clear of any hydraulic hoses or electrical cables that could get pinched or damaged when someone’s climbing up or down. If it's looking rough, swap it out. It's cheap insurance compared to a lost-time injury.