Posted 4/22/2009 10:39 (#689460 - in reply to #689410) Subject: Re: 4700 JD sprayer boom hinge won't take grease
NESD
If you are talking about the pins with the zerk in the end then there is no need to support the boom, just loosen the hoses on the fold cylinder to releive any pressure on the pins and remove the 6mm bolt the retains the pin and remove the pin.