As the result of an extremely high wind event, I will soon be going up the
tower to loosen the G-2800 mast clamps, realign the mast and then re-tighten
the M8 x 70 bolts.
The Yaesu G-2800 manual says:
“Caution: Do not over-tighten the nuts on the mast clamps.
They should be tightened until the spring washer becomes flat, then tightened
further by 1/2 to one turn maximum.”
I am still using the original hardware supplied with the G-2800.
These spring washers have been in service for 5 years - so their springy-ness
may not be the best indicator for torque.
I believe that torque settings depend upon the grade of hardware being used:
e.g. 8.8, 9.8, 10.9 or 12.9 - but I don’t know the grade of the stock hardware.
What its the proper torque setting for these M8 x 70 bolts?
73,
~ Alan Higbie K0AV
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