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Farm Building and Infrastructure
Buildings & Infrastructure
Moling a new pipe under a concrete track
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<blockquote data-quote="Andy26" data-source="post: 235225" data-attributes="member: 199"><p>They're usually pretty good, I've never had one freeze, all I could say is you need to make sure they operate at the right speed/frequency.</p><p></p><p>Too slow they go nowhere and could get jammed, too fast and they almost bounce backwards.</p><p></p><p>They freeze because the compressed air expands in the mole, so you must <span style="font-size: 13px">make sure you have the winter oil, it has additives to prevent freezing.</span></p><p><span style="font-size: 13px"></span></p><p><span style="font-size: 13px">They can need a knack to start them again, it will depend on model, some you cycle between reverse and forwards, some will need kick starting by kinking the air hose and releasing it to give a surge in pressure.</span></p></blockquote><p></p>
[QUOTE="Andy26, post: 235225, member: 199"] They're usually pretty good, I've never had one freeze, all I could say is you need to make sure they operate at the right speed/frequency. Too slow they go nowhere and could get jammed, too fast and they almost bounce backwards. They freeze because the compressed air expands in the mole, so you must [SIZE=13px]make sure you have the winter oil, it has additives to prevent freezing. They can need a knack to start them again, it will depend on model, some you cycle between reverse and forwards, some will need kick starting by kinking the air hose and releasing it to give a surge in pressure.[/SIZE] [/QUOTE]
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Moling a new pipe under a concrete track
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