It uses a "V" ring packing on the shaft, first ring is shaped and flat bottom to support the packing above. then 5 rings of V packing and on top the follower , brass part is formed on end to fit packing. The brass has a recess forthe wiper seal mounted as a exclusion seal to keep dirt out.
Packing gland is held on by the 1/2" bolts which are tensioned just enough to leave a light film of oil on rod. You can remove the old packing with a packing removal tool , corkscrew type tool and in some cases just adding another ring (1) of packing will bring full stack back into service.
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