Maintenance on an 851 Powermaster

   / Maintenance on an 851 Powermaster #31  
the shift plungers on a 5 speed are nothing more than slot headed caps with seal, a spring, and a short cylindrical slug with an oval/rounded head.

Usual wear is in the 3/r plunger, and 4/5 almost never sees use for field work, so many times, people pop the 'new' plunger out of 4/5 and swap it to 3/r, and swap the worn one to 4/5.

You can still get them from NH.

PS.. worn plungers or weak springs are only part ( sometimes none ) of a jump out of gear problem. sometimes it is just worn out tranny and bearings, and when you decelerate a hair, it tries to jump out.
 

Tractor & Equipment Auctions

NEW HOLLAND T4.75 TRACTOR (A52707)
NEW HOLLAND T4.75...
2024 HURRICANE GF480 - 48" ROTARY DRUM SCREEN (A52706)
2024 HURRICANE...
MARATHON 20KW GENERATOR (A58214)
MARATHON 20KW...
2018 HINO 338 KNUCKLE BOOM TRUCK (A51406)
2018 HINO 338...
2012 John Deere 624K (A55272)
2012 John Deere...
John Deere 1025R Sub-Compact Tractor Mower (A56857)
John Deere 1025R...
 
Top