From reading this thread I decided it was time to grease my FEL. The grease was so thick I couldn't get it primed in order to pump it with my standard type grease gun. I had to start a fire in the wood-burner to heat the gun and grease up to about 80 degrees. It is a lithium grease recommended by Deere and comes in tubes. Does that sound normal? 50 degrees in shop.
Yup, normal. Grease dosent move well in the cold. Do you have a air bleed-off you can open while its pumping? If not, just take in the house tonight and let it sit, then try it again in the morning. I bet it will fix itself.
I usually pack grease up into the head before i shove a tube of grease in my grease guns. Helps get the air out and start pumping.