John Deere 318 User Manual
• Carefully turn worm shaft all the way to end of travel,
then turn back one-half turn.
NOTE: Due to tolerances, some 11/16 in. sockets
require a wrapping of card stock around the
serrations on end of worm shaft.
• Install 1-1/8 in. socket with ratchet on worm bearing
adjuster and an 11/16 in. 12-point socket with torque
wrench on end of worm shaft.
NOTE: If worm shaft begins to bottom while reading the
torque wrench, back worm shaft out and start
torque reading again.
• Tighten worm bearing adjuster until torque wrench
reads 0.60—1.0 N·m (5—8 lb-in.) rolling torque.
• Install lock nut on worm bearing adjuster and tighten
using a punch and hammer.
316, 318 & 420 Lawn and Garden Tractors