Originally Posted by rynosback
Grease the saddle through the grease zerk approximately every six months with multi−purpose grease. This allows the coupler to pivot freely, see Figure G1.
I understand that but when you are towing a lot that is too long. They say "Approximately" I think that should be taken with a grain of salt.
Frequency of towing is more important.
You are not mentioning the head support pcs that require lithium grease.
To be clear the zerk is greasing a BOLT that rides inside a steel sleeve that has two small areas of support for the entire kingpin weight, as in steel to steel contact.
I had to pull my head apart to replace the B&W supplied replacement head shock. I sent them pics and they said it's normal. I have a heavy pin and I use AMZ/OIL Synthetic grease OFTEN. So if you want to go 6 mo have at it!
Hitch is one year old at time of pics.