1974 Ski-Doo Shop Manual, Page 11Get this manual
TRACK TENSION(BOGIE WHEEL)
LlGNMENT
Track tension and alignment are inter-related Do not adjust one without checking the otherTrack tension procedure must be carried out prior to track al ignment
Tension
With rear of vehicle blocked off the ground, check the track tension at middle set of bogie wheels as indicated in the Technical Data (Section f8)
If applicable, ensure link plate springs are in the middle position of the position slotted anchorsTo correct track tension, loosen link plate spring lock nuts on inner side of link plate springs Turn adjuster bolts clockwise to tighten track or counter-clockwise to slackenTighten link plate spring lock nuts
Alignment
With rear of vehicle supported off the ground, start engine and allow the track to rotate slowlyCheck if track is well centered and turns evenly on rear sprocketsDistance between edge of track and Iink plate must be equal on both sides(If applicable, ensure link plate springs are in the middle position of the position slotted anchors)Warning: Before checking track alignment, ensure that the track is free of all particles which could be thrown out while track is rotatingKeep hands, feet, tools and clothing clear of track