Subaru Legacy 2015 Technicians Reference Booklet page 165

2015 Legacy and Outback
Place the microphone of the Sonic Belt Tension gauge within close proximity of the V-belt and
firmly pluck the V-belt in the center of the top length.
Belt Tension Gauge Positioned
Repeat three times to obtain an average and compare to Subaru service manual specifications.
1 st Sample
EXAMPLE: V-belt tension (with Sonic belt tension gauge):
When installing new parts
1080 — 1230 N (110 — 125 kgf, 243 — 277 lbf)
337 — 360 Hz (frequency)
At inspection
570 — 720 N (58 — 73 kgf, 128 — 162 lbf)
245 — 275 Hz (frequency)
NOTE: Always refer to the correct Subaru Service Manual on STIS.
10-42
10-44
2 nd Sample
New Technology Training
V-belt Plucked
10-45
165
(Module 926)
10-43
10-46
3 rd Sample
June 2014