OWNER’S MANUAL 8/31/21 Page 11 of 18
TRACK MAINTENANCE
DANGER
: Before beginning any work on the track system engine start-up must be prevented. See the
MAINTENANCE PREPARATION section page 6.
NOTICE:
•
Tracks must be correctly tensioned. Loose tracks may de-track, tight tracks will cause excessive
wear. Each track must be checked and adjusted individually.
•
DO NOT attempt to remove the spring retaining bolt (3/4” head) with the track carriage fully
assembled. It is not necessary for track replacement and will result in extra work.
Refer to drawings 00570-R or –L in your exploded views manual and the diagram
TRACK TENSION
ADJUSTMENT
on the next page.
Check track tension:
With the STK on flat ground, measure the length of the spring, the spring should be 5in (12.7cm). The
spring is visible through slots in the side plates of the under-carriage frame. The track will stretch as it
wears. Check spring length with every engine oil change.
Adjust track tension:
With the STK on flat ground:
•
Loosen, but do not remove the two tensioner retaining bolts and jam nut on tension adjusting bolt.
•
Turn the tension adjusting bolt until the spring is 5in: clockwise to decrease spring length,
increases track tension; counterclockwise to increase spring length, decreases track tension.
•
Tighten the two tensioner retaining bolts and the jam nut.
•
Drive the STK a few feet and re-check track tension, re-adjust if necessary.
Remove / Install track:
•
Lift the STK until the track is completely off the ground.
•
Loosen, but do not remove the two tensioner retaining bolts and jam nut on tension adjusting bolt.
•
Remove both outer idler wheels.
•
Loosen the tension adjusting bolt until the track is loose enough to be easily removed.
o
Use a soft mallet or wood blocks to drive idler rollers forward until the tensioner retaining
bolts are at the front of the slots.
•
Install the new track; the new track will be tighter than the used track.
•
Replace both outer idler wheels.
•
Tighten the tension adjusting screw until the spring is 5in.
•
Tighten the two tensioner retaining bolts and the jam nut.
•
Lower the STK back onto flat ground.
•
Drive the STK a few feet and re-check track tension, re-adjust if necessary.
See diagram TRACK TENSION ADJUSTMENT on the next page.
