Manhole Buddy Lifting Trolley (Steel or Alloy)
KeyTec Spreader Bar with Folding Arms
High-Leverage Unseating Hook
Pair of 20 mm L-Shaped Keys
Pair of 25 mm T-Shaped Keys
Pair of 35 mm T-Shaped Keys
Combined Spreader Bar and Keys Carry Bag
An average build person can easily lift a cover equal to their own weight using any Manhole Buddy system. Drain covers can vary considerably in weight, but the majority will fall in the range 40 to 80 kg.
The Manhole Buddy Lifting Trolley is essentially a mobile lever, pivoting on its wheels and having two lifting points, the forward lifting hook for balanced lifting and carriage of covers and a pair of High Leverage lifting pins through which the cover unseating capability is accessed. The Manhole Buddy trolley delivers a mechanical advantage of just over 2.3:1 through the forward lifting hook, so a modest downward force of 25 kg on the trolley handle, translates into a lifting effort approaching 60 kg at the other end. The High Leverage lifting pins are positioned to deliver a mechanical advantage greater than 5:1 which means the 25 kg downward effort inputted by the user translates into a lifting force greater than 125 kg.
At the heart of the KeyTec configuration is a load spreader bar which sits on top of the cover and attaches through threaded lifting keys. The spreader bar is fitted with the same rotating lifting hanger as all Manhole Buddy cover attachments, which uniquely for a key-based system, means you have freedom to access the cover from more positions. A combined tool bag, with long handles for shoulder-carrying, is supplied for the folded spreader bar, the lifting keys and the high leverage lifting hook. In use, the spreader bar is positioned on the cover and the lifting keys fitted. The cover can be unseated using the high leverage lifting points on the trolley, connecting to the end loops on the bar, through the lifting hook. The cover is raised and pivoted clear of the chamber, using the forward lifting point on the trolley. At all times, the operator is in contact with the trolley t-handle, hence distant from the suspended load and the chamber opening, making the product undeniably safe for one-person or lone worker use. For indoor covers with threaded inserts, standard set bolts of appropriate length and thread can be used to secure the KeyTec lifting attachment, but if preferred, we can manufacture threaded examples of our standard lifting keys.
The Manhole Buddy KeyTec lifting system is suitable for metallic and non-metallic covers. On split covers it can be particularly advantageous, as it will retain the two elements in correct alignment, which greatly eases the process of refitting.
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